02303nas a2200229 4500008004100000022001400041245013600055210006900191260009500260300001200355490000700367520140500374653001201779653001601791653002801807653001601835653002101851100002901872700001901901700002201920856013101942 2015 eng d a0263-876200aCatalytic upgrading of citric acid to environmental friendly tri-butyl citrate plasticizer over ultra stable phosphonated Y zeolite0 aCatalytic upgrading of citric acid to environmental friendly tri a165-189 RAILWAY TERRACE, DAVIS BLDG, RUGBY CV21 3HQ, ENGLANDbINST CHEMICAL ENGINEERScJUN a212-2190 v983 a

The catalytic synthesis of non-toxic/eco-friendly tributyl citrate (TBC) plasticizer by esterification of renewable citric acid (CA) with butanol would be completely sustainable route. In this context, catalytic performance of parent ultra stable Y (USY) and phosphonated USY catalysts were investigated for TBC synthesis. Parent USY and phosphonated USY catalysts were characterized by powder X-ray diffraction (XRD), N-2 adsorption-desorption, NH3 temperature programmed desorption (TPD), pyridine-Fourier Transform Infrared Spectroscopy (FTIR), FTIR, SEM, ICP. The influence of various process parameters such as phosphorous (P) loading (0 to 4 wt/%), catalyst loading (5-25%), molar ratio of CA to n-butanol (1:4 to 1:12), reaction temperature (383-423 K) and reaction time (1-5 h) have been investigated over USY catalyst with aim to maximize CA conversion and TBC yield. Amongst the studied catalysts, the 2% (w/w) P/USY was found to be highly potential catalyst with complete CA conversion (100%) and 93% TBC yield. The present method of using 2% (w/w) P/USY catalyst for the synthesis of TBC would be environmentally benign in the context of bio-renewable synthetic route, high catalytic activity, non-toxic product, long term stability and reusability of catalyst (five catalytic cycles). (c) 2015 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved,

10aButanol10aCitric acid10aheterogeneous catalysis10aPlasticizer10aTributyl citrate1 aNandiwale, Kakasaheb, Y.1 aGogoi, Pranjal1 aBokade, Vijay, V. uhttps://library.ncl.res.in/content/catalytic-upgrading-citric-acid-environmental-friendly-tri-butyl-citrate-plasticizer-over-002032nas a2200217 4500008004100000022001400041245020200055210006900257260011000326300001400436490000700450520106400457100002001521700001901541700002601560700001901586700003301605700002501638700002001663856013101683 2015 eng d a1144-054600aGreen approach for the decoration of Pd nanoparticles on graphene nanosheets: an in situ process for the reduction of C-C double bonds and a reusable catalyst for the suzuki cross-coupling reaction0 aGreen approach for the decoration of Pd nanoparticles on graphen aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJUN a6631-66410 v393 a

A new strategy for in situ synthesis of palladium nanoparticles (Pd NPs) decorated on reduced graphene oxide (rGO) nanosheets with controlled size and shape is reported. This strategy was designed as three processes in one pot, namely, (a) reduction of graphene oxide, (b) formation of Pd NPs on the rGO nanosheets and (c) simultaneous reduction of olefin. In this synthesis process, a hydrogen atmosphere was used to develop the Pd NPs-rGO nanocatalyst, which is reusable and easily separable. The influence of the size and morphology of the Pd-rGO-H-2 catalyst on the catalytic activity in the Suzuki cross-coupling reaction was investigated by comparing with other catalysts, Pd-rGO-As and Pd-rGO-Gl, and they were synthesized by different reducing agents, ascorbic acid and glucose, respectively. The catalysts were characterized by electron microscopy (HRTEM, SEM), FT-IR, XRD and XPS. The Pd-rGO-H-2 catalyst was found to possess excellent catalytic activity and recyclability in the Suzuki cross-coupling reaction under mild reaction conditions.

1 aHussain, Najrul1 aBorah, Ashwini1 aDarabdhara, Gitashree1 aGogoi, Pranjal1 aAzhagan, Muniraj, Vedi Kuyil1 aShelke, Manjusha, V.1 aDas, Manash, R. uhttps://library.ncl.res.in/content/green-approach-decoration-pd-nanoparticles-graphene-nanosheets-situ-process-reduction-c-c-001736nas a2200193 4500008004100000022001400041245020100055210006900256260011000325300001400435490000600449520084500455100002001300700001901320700003301339700002501372700002001397856012501417 2015 eng d a2044-475300aGreen synthesis of stable Cu(0) nanoparticles onto reduced graphene oxide nanosheets: a reusable catalyst for the synthesis of symmetrical biaryls from arylboronic acids under base-free conditions0 aGreen synthesis of stable Cu0 nanoparticles onto reduced graphen aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcNOV a1251-12600 v53 a

Highly stable Cu(0) nanoparticles were synthesized on reduced graphene oxide (rGO) sheets using a cost-effective and green method. The synthesized Cu(0)-nanoparticle-rGO composites exhibit excellent catalytic activity for the synthesis of symmetrical biaryls from arylboronic acids under microwave irradiation. The reaction proceeds smoothly in base-free conditions with easy recovery and reuse of the catalyst. The methodology is compatible with various functional groups and provides an attractive protocol for the synthesis of symmetrical biaryls with very good yields. HRTEM, XPS and XRD analyses showed the catalyst to be recyclable. The Cu(0) nanoparticles are stable in the rGO nanosheets, and the particle size distribution and oxidation state of the Cu(0) nanoparticle remain the same after performing the chemical reaction.

1 aHussain, Najrul1 aGogoi, Pranjal1 aAzhagan, Muniraj, Vedi Kuyil1 aShelke, Manjusha, V.1 aDas, Manash, R. uhttps://library.ncl.res.in/content/green-synthesis-stable-cu0-nanoparticles-reduced-graphene-oxide-nanosheets-reusable-301813nas a2200241 4500008004100000022001400041245009600055210006900151260006700220300001200287490000800299520092200307653003001229653002401259653002801283653001801311653002801329100001801357700001901375700002701394700002601421856012401447 2015 eng d a0020-760800aTheoretical insight of nitric oxide adsorption on neutral and charged Pd-n (n=1-5) clusters0 aTheoretical insight of nitric oxide adsorption on neutral and ch a111 RIVER ST, HOBOKEN 07030-5774, NJ USAbWILEY-BLACKWELLcJUL a837-8450 v1153 a

Density functional theory (DFT) calculations within the framework of generalized gradient approximation have been used to systematically investigate the adsorption of nitric oxide (NO) molecule on neutral, cationic, and anionic Pd-n (n=1-5) clusters. NO coordinate to one Pd atom of the cluster by the end-on mode, where the tilted end-on structure is more favorable due to the additional electron in the * orbital. On the contrary, in the neutral and cationic Pd-2 system, NO coordinates to the bridge site of cluster preferably by the side-on mode. Charge transfer between Pd clusters and NO molecule and the corresponding weakening of NO bond is an essential factor for the adsorption. The NO stretching frequency follow the order of cationic>neutral>anionic. Binding energy of NO on anionic clusters is found to be greater than those of neutral and cationic clusters. (c) 2015 Wiley Periodicals, Inc.

10aDensity functional theory10aelectronic property10ageometric configuration10aNO adsorption10asmall palladium cluster1 aBegum, Pakiza1 aGogoi, Pranjal1 aMishra, Bhupesh, Kumar1 aDeka, Ramesh, Chandra uhttps://library.ncl.res.in/content/theoretical-insight-nitric-oxide-adsorption-neutral-and-charged-pd-n-n1-5-clusters-101213nas a2200193 4500008004100000022001400041245022400055210006900279260011000348300001400458490000600472520029900478100002000777700001900797700003300816700002500849700002000874856012500894 2016 eng d a2044-475300aGreen synthesis of stable Cu(0) nanoparticles onto reduced graphene oxide nanosheets: a reusable catalyst for the synthesis of symmetrical biaryls from arylboronic acids under base-free conditions (vol 5, pg 1251, 2015)0 aGreen synthesis of stable Cu0 nanoparticles onto reduced graphen aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcFEB a1234-12340 v63 a

Correction for ‘Green synthesis of stable Cu(0) nanoparticles onto reduced graphene oxide nanosheets: a reusable catalyst for the synthesis of symmetrical biaryls from arylboronic acids under base-free conditions’ by Najrul Hussain et al., Catal. Sci. Technol., 2015, 5, 1251–1260.

1 aHussain, Najrul1 aGogoi, Pranjal1 aAzhagan, Muniraj, Vedi Kuyil1 aShelke, Manjusha, V.1 aDas, Manash, R. uhttps://library.ncl.res.in/content/green-synthesis-stable-cu0-nanoparticles-reduced-graphene-oxide-nanosheets-reusable-201964nas a2200181 4500008004100000022001400041245012700055210006900182260011000251300001600361490000600377520116900383100002201552700002701574700001901601700003301620856012901653 2016 eng d a2046-206900aHydrogenation of cinnamaldehyde to hydrocinnamaldehyde over Pd nanoparticles deposited on nitrogen-doped mesoporous carbon0 aHydrogenation of cinnamaldehyde to hydrocinnamaldehyde over Pd n aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcAPR a44333-443400 v63 a

Palladium nanoparticles deposited on nitrogen-doped mesoporous carbon (NMC) were synthesized by simple ultrasonic-assisted method. This novel Pd-NMC catalyst was highly active and selective for the hydrogenation of cinnamaldehyde (CA) to hydrocinnamaldehyde (HCA) at room temperature (30 degrees C) under low H-2 pressure. The nitrogen-free mesoporous carbon (MC) and activated carbon (AC) were also employed as the support for Pd in the liquid-phase hydrogenation of CA. The incorporation of nitrogen into carbon matrix remarkably enhanced the catalytic activity and C=C bond hydrogenation selectivity (HCA selectivity of 93% with 100% CA conversion for Pd-NMC) in CA hydrogenation compared to the catalysts with no nitrogen (HCA selectivity of 66 and 47% for Pd-MC and Pd-AC, respectively). Moreover, Pd-NMC catalyst demonstrated an excellent recyclability without any loss in activity and HCA selectivity when it was reused for six times. The superior catalytic performance of Pd-NMC catalyst in CA hydrogenation is attributed to the small size of Pd nanoparticles due to presence of high nitrogen content (11.6 wt%) and mesoporous nature of NMC support.

1 aNagpure, Atul, S.1 aGurrala, Lakshmiprasad1 aGogoi, Pranjal1 aChilukuri, Satyanarayana, V. uhttps://library.ncl.res.in/content/hydrogenation-cinnamaldehyde-hydrocinnamaldehyde-over-pd-nanoparticles-deposited-nitrogen02103nas a2200181 4500008004100000245010500041210006900146260000800215300001000223490000800233520143900241100002201680700001901702700002101721700003301742700001501775856013101790 2017 eng d00aSignificance of optimal N-doping in mesoporous carbon framework to achieve high specific capacitance0 aSignificance of optimal Ndoping in mesoporous carbon framework t cOCT a40-480 v4183 aNitrogen-doped mesoporous carbon (NMC) has been synthesized by sol-gel process using a mixture of phenol and formaldehyde as source of carbon, and melamine as source of nitrogen. The Ludox-AS40 (40 wt% SiO2) is employed, for the first time, as hard template to obtain polymeric gel by prolonged heat treatment at 80 degrees C. The wt% of nitrogen is tuned by varying the weight ratio of melamine to phenol. Stable mesoporous carbon frameworks are obtained by pyrolysis of the dry gel at 800 degrees C in nitrogen atmosphere and treated with alkali to remove silica. One of the carbon framework samples has 11 wt% nitrogen doping and shows pore volume of 0.5 cm(3) g(-1) and surface area 609 m(2) g(-1). The other carbon frame work sample has 6 wt% nitrogen doping and shows higher pore volume of 1.1 cm(3) g(-1) and surface area 736 m(2) g(-1). The later sample exhibits highest electrochemical capacitance of 196 F g(-1) at 0.5 A g(-1) while the former shows only 146 F g(-1) at 0.5 A g(-1). However, both the NMC electrodes show good cyclic performance (91% of the initial capacitance after 1000 cycles) in an aqueous KOH electrolyte. This study demonstrates that there is an optimum level of nitrogen doping required to keep the meso-structure of carbon network intact, simultaneously maintaining high surface area and sufficient electrical conductivity for electrochemical applications. (C) 2016 Elsevier B.V. All rights reserved.1 aSahoo, Malaya, K.1 aGogoi, Pranjal1 aRajeshkhanna, G.1 aChilukuri, Satyanarayana, V.1 aRao, Ranga uhttps://library.ncl.res.in/content/significance-optimal-n-doping-mesoporous-carbon-framework-achieve-high-specific-capacitance03203nas a2200265 4500008004100000022001400041245017200055210006900227260000800296300001400304490000700318520224200325653002802567653001302595653001902608653002002627653002302647100001902670700002302689700001802712700002102730700002902751700002602780856013102806 2020 eng d a2155-543500aControlling and stabilization of Ru nanoparticles by tuning the nitrogen content of the support for enhanced H-2 production through aqueous-phase reforming of glycerol0 aControlling and stabilization of Ru nanoparticles by tuning the  cFEB a2489-25070 v103 a

The stable activity of catalysts is an important issue in catalysis, particularly aqueous-phase reforming (APR) of renewable oxygenates, of biomass origin, to get H-2. Sintering of metal nanoparticles on supports affects catalyst stability. To alleviate this problem, a series of highly stable Ru-supported catalysts with controlled metal nanoparticle sizes have been prepared via the easy incipient wetness impregnation method. These catalysts were used for APR of glycerol to produce H-2. Nitrogen-doped mesoporous carbons (NMCs) were utlized as supports and found to have a strong influence on the catalytic performance of the catalysts. Incorporation of nitrogen in the carbon framework significantly enhanced the catalytic activity compared to Ru catalysts on nitrogen-free supports. Notably, the catalyst (5 wt % Ru-NMC-3) with optimal N content (10.9 wt %) demonstrated improved stability and H-2 selectivity, which are better than those of many state-of-the-art catalysts. Nitrogen in the carbon framework has a dual relationship with the activity of the catalyst: (i) it creates basic environment over the catalysts support and (ii) it acts as an anchoring site for metal nanoparticles. Anchoring of metal nanoparticles has helped to curb their sintering, thus leading to better stability of the catalysts under APR reaction conditions. Various characterization techniques were employed to understand the nature of active catalytic sites responsible for higher H-2 production while minimizing CO formation. In situ CO-FTIR studies showed that the higher catalytic activity of 5 wt % Ru-NMC-3 catalyst was attributed to the enhanced WGS activity over this catalyst. Density functional theory calculations were performed to understand the stabilization of metal nanoparticles by different types of N present on the support and provide insights into the prefered sites of glycerol adsorption on the NMC support. Since S wt % Ru-NMC-3 was the relatively best catalyst, it was selected for the preparation of bimetallic catalysts. Accordingly, addition of Pt to this system helped to increase the stability of the catalyst. This bimetallic catalyst may, therefore, find application for wide use in APR of biomass oxygenates.

10aaqueous-phase reforming10aGlycerol10aH-2 production10aRu/NMC catalyst10asynergistic effect1 aGogoi, Pranjal1 aKanna, Narsimharao1 aBegum, Pakiza1 aDeka, Ramesh, C.1 aSatyanarayana, C., V. V.1 aRaja, Thirumalaiswamy uhttps://library.ncl.res.in/content/controlling-and-stabilization-ru-nanoparticles-tuning-nitrogen-content-support-enhanced-h-201899nas a2200253 4500008004100000022001400041245011000055210006900165260000800234300001400242490000700256520106400263653002901327653001201356653001001368653001301378653001301391100001901404700002201423700002701445700001901472700002901491856012501520 2020 eng d a1380-222400aEfficacy of clay catalysts for the dehydration of fructose to 5-hydroxymethyl furfural in biphasic medium0 aEfficacy of clay catalysts for the dehydration of fructose to 5h cDEC a1691-17000 v273 a

5-Hydroxymethyl furfural (HMF) is one of the important platform chemical obtained from C6 sugars derived from biomass. The efficiency of montmorillonite clay catalysts (K-10, K-20, K-30, and Al pillared clay) has been systematically explored for the synthesis of HMF through dehydration of fructose in a biphasic solvent system. The catalysts were characterized by XRD, N(2)sorption,Al-27 MAS NMR,Si-29 NMR and FT-IR of chemisorbed pyridine. Acid treated K-10 catalyst was found to be the best among the clay catalysts tested. Various reaction parameters such as reaction temperature, catalyst content, solvent were optimized for achieving better yield of HMF. Under optimized reaction conditions, K-10 catalyst affords 80 mol% fructose conversion with HMF yield of 61 mol%. Insight into the type of acid sites essential for such cascade reactions has been furnished. Utilization of clay catalysts for HMF production will be beneficial to improve overall economics for the production of platform chemicals like HMF from biomass-derived raw materials.

10a5-hydroxymethyl furfural10aAcidity10aClays10afructose10aInsights1 aLucas, Nishita1 aNagpure, Atul, S.1 aGurrala, Lakshmiprasad1 aGogoi, Pranjal1 aChilukuri, Satyanarayana uhttps://library.ncl.res.in/content/efficacy-clay-catalysts-dehydration-fructose-5-hydroxymethyl-furfural-biphasic-medium01974nas a2200193 4500008004100000022001400041245012200055210006900177260000900246300001200255490000600267520126000273100001901533700002201552700002101574700002901595700002601624856013001650 2020 eng d a2398-490200aInsights into the catalytic activity of Ru/NaY catalysts for efficient H-2 production through aqueous phase reforming0 aInsights into the catalytic activity of RuNaY catalysts for effi cFEB  a678-6900 v43 a

Ruthenium nanoparticles supported on NaY zeolite catalysts were synthesized by a simple ion exchange method. The structural and morphological features of the catalysts were systematically investigated using numerous techniques such as N-2-sorption, XRD, CO2-TPD, H-2-TPR, TEM, SEM, ICP-OES, TGA, CHN analysis, XPS, in situ CO-FTIR and NMR spectroscopy. These novel Ru-NaY catalysts were highly active and selective for H-2 production through aqueous phase reforming (APR) of glycerol and ethylene glycol. Among the various catalysts evaluated for H-2 production, the 3 wt% Ru-NaY catalyst demonstrated the highest catalytic performance with excellent H-2 selectivity and this catalyst exhibits better activity as compared to many state of the art catalysts reported so far. The superior catalytic activity of 3 wt% Ru-NaY was attributed to the appropriate Ru metal loading, good metal dispersion, small size of Ru nanoparticles, better metal-support interaction, and higher availability of catalytically active sites (Ru-0) and facilitated water gas shift (WGS) reaction. This catalytic activity result clearly shows that NaY zeolite supported Ru nanoparticles catalysts have excellent potential for H-2 production from biomass-derived compounds.

1 aGogoi, Pranjal1 aNagpure, Atul, S.1 aKandasamy, Prabu1 aSatyanarayana, C., V. V.1 aRaja, Thirumalaiswamy uhttps://library.ncl.res.in/content/insights-catalytic-activity-runay-catalysts-efficient-h-2-production-through-aqueous-phase02414nas a2200181 4500008004100000022001400041245011400055210006900169260000900238300001400247490000600261520174800267100002202015700001902037700001902056700002902075856012802104 2020 eng d a2398-490200aNovel Ru nanoparticle catalysts for the catalytic transfer hydrogenation of biomass-derived furanic compounds0 aNovel Ru nanoparticle catalysts for the catalytic transfer hydro cJUL  a3654-36670 v43 a

The catalytic transfer hydrogenation (CTH) reaction was investigated for boosting the reduction of biomass-derived furanic compounds to obtain high-quality liquid biofuels. The CTH of 5-hydroxymethylfurfural (HMF) to 2,5-dimethylfuran (DMF) and furfural to 2-methylfuran (MF) was thoroughly studied over the Ru, Pd, Au, Pt, Ni, Rh and Cu metal catalysts supported on nitrogen-doped mesoporous carbons (NMCs) by utilizing 2-propanol as a source of hydrogen. The structural characteristics of the materials were examined by employing various physico-chemical methods, such as XRD, N(2)sorption, CHN analysis, XPS, FT-IR spectroscopy, H-2-TPR, TEM, CO2-TPD, ICP-OES and Raman spectroscopy. The influence of the N content, basicity of the catalyst, reaction temperature, hydrogen donor, nature of the catalyst support and transition metal was systematically investigated with regard to the substrate conversions and product yields. The correlation between the N content (wt%) of the catalysts and the Ru nanoparticle size (nm) and turnover frequency (h(-1)) was also investigated. Highly dispersed Ru nanoparticles (1.9 nm) supported on NMC displayed admirable catalytic performance in CTH for the conversion of HMF to DMF and furfural to MF. The catalyst Ru-NMC with a good N content (11.4 wt%) gave 84 and 87 mol% yields of DMF and MF, respectively, with 2-propanol as the source of hydrogen under mild reaction conditions. In addition, this catalyst demonstrated excellent recyclability. The better catalytic activity of the Ru-NMC catalyst in the CTH of HMF and furfural was credited to the small size of the Ru metal nanoparticles (1.9 nm), high N content, superior metal-support interaction and mesoporous framework of the catalyst.

1 aNagpure, Atul, S.1 aGogoi, Pranjal1 aLucas, Nishita1 aChilukuri, Satyanarayana uhttps://library.ncl.res.in/content/novel-ru-nanoparticle-catalysts-catalytic-transfer-hydrogenation-biomass-derived-furanic02074nas a2200229 4500008004100000022001400041245017700055210006900232260000900301300001400310490000700324520117400331653002101505653002801526653001801554653003701572653003001609100002201639700001901661700003301680856013101713 2021 eng d a1861-472800aActive and recyclable gold metal nanoparticles catalyst supported on nitrogen-doped mesoporous carbon for chemoselective hydrogenation of cinnamaldehyde to cinnamyl alcohol0 aActive and recyclable gold metal nanoparticles catalyst supporte cSEP  a2702-27220 v163 aSeveral supported gold metal catalysts with different Au nanoparticles sizes were prepared and evaluated for the chemoselective hydrogenation of cinnamaldehyde (CA) to cinnamyl alcohol (CAL). To investigate the structure-activity relationship, stability of catalyst, heterogeneity and recyclability, the structural characteristics of materials and Au catalysts (fresh and spent catalysts) were studied by employing variety of physico-chemical techniques. The interrelationship among Au nanoparticles size (nm) with turnover frequency (h(-1)) of Au catalysts has also been explored. Among the various Au catalysts tested, nitrogen-doped mesoporous carbon (NMC) supported Au catalyst having homogeneously dispersed (78.8%) Au nanoparticles (1.6 nm) synthesized by sol-immobilization method (Au-NMC-SI) demonstrated improved catalytic activity affording 78% CAL selectivity and 94.2% CA conversion without using any promoter. Moreover, Au-NMC-SI catalyst exhibited good recyclability and stability. The catalyst synthesis approach described in this investigation opens up a novel strategy for the design of highly efficient metal nano-catalysts supported on NMC materials.10aAu Nanoparticles10aheterogeneous catalysis10aHydrogenation10aNitrogen-doped mesoporous carbon10aSupport-Metal interaction1 aNagpure, Atul, S.1 aGogoi, Pranjal1 aChilukuri, Satyanarayana, V. uhttps://library.ncl.res.in/content/active-and-recyclable-gold-metal-nanoparticles-catalyst-supported-nitrogen-doped-mesoporous02316nas a2200229 4500008004100000022001400041245006900055210006700124260000800191300001400199490000600213520159900219653001301818653001901831653003201850653001701882653001601899100001901915700002901934700002601963856009701989 2021 eng d a2365-654900aActive K-OMS-2 supported catalyst for hydrogenolysis of glycerol0 aActive KOMS2 supported catalyst for hydrogenolysis of glycerol cSEP a8700-87080 v63 aPropanediols are very important chemical intermediates, which need to be prepared through commercially viable routes. Cryptomelane type octahedral molecular sieve-2 (K-OMS-2), a cheap and environmentally benign microporous oxide was employed to support Ru and used as a catalyst to get 1,2-propanediol (1,2-PDO) selectively through hydrogenolysis of glycerol. Three catalysts with different Ru content were prepared and evaluated for glycerol hydrogenolysis. Among these, 1 wt.% Ru-K-OMS-2 showed reasonably good activity towards 1,2-PDO formation under moderate reaction conditions even at lower Ru loading (0.9 wt.%). When other metals such as Cu and Ni were supported on K-OMS-2, their performance was inferior compared to Ru-supported catalysts. All the catalysts were characterized using various physicochemical techniques like XRD, N-2-sorption, TPD, H-2-TPR, TGA, ICP-OES, FE-SEM and TEM. The enhanced catalytic activity with the 1 wt.%Ru-K-OMS-2 catalyst was attributed to the better Ru metal dispersion, higher active metal surface area, basic strength, and porosity of the support. The catalyst was found to be recyclable. Analysis of spent catalyst by TEM showed disintegration of Ru nanoparticles to smaller ones, under high H-2 pressure at the reaction temperature. Smaller Ru particles are expected to promote C-C bond cleavage thus suppressing 1,2-PDO formation. Furthermore, a relationship between the TOF value, Ru nanoparticles size, and the basic strength of the catalysts was established, which provides dipper insight into the different catalytic behavior of the catalysts.10aGlycerol10aHydrogenolysis10aoctahedral molecular sieves10aPropanediols10aselectivity1 aGogoi, Pranjal1 aChilukuri, Satyanarayana1 aThirumalaiswamy, Raja uhttps://library.ncl.res.in/content/active-k-oms-2-supported-catalyst-hydrogenolysis-glycerol01826nas a2200157 4500008004100000245013500041210006900176260000800245490000800253520117200261100002101433700001901454700003701473700002601510856013201536 2021 eng d00aHighly efficient and reusable Ru-NaY catalyst for the base free oxidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic acid0 aHighly efficient and reusable RuNaY catalyst for the base free o cSEP0 v3753 a

Oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) is an important reaction for the production of recyclable bio-based polymers. Herein, we report a series of Ru nanoparticles supported on NaY zeolites catalysts for the oxidation of HMF to FDCA. The catalysts were prepared by simple ion exchanged method. Among all the catalysts, the optimized 3 wt % Ru-NaY catalyst showed superior catalytic activity under base free conditions with a shorter period of reaction time. The conversion of HMF was 100 % with 94 % FDCA yield. This catalyst was reused for fourth cycles, with an insignificant decrease in the yield of FDCA. H2-chemisorption and HRTEM studies confirmed that high metal dispersion and small size of Ru nanoparticles play vital roles for the HMF oxidation. In addition, the acidic hydroxyl groups of the supercage as well as higher amount of metallic Ru° are also responsible for the high yield and productivity of FDCA.

1 aKandasamy, Prabu1 aGogoi, Pranjal1 aVenugopalan, Aswathy, Thareparam1 aRaja, Thirumalaiswamy uhttps://library.ncl.res.in/content/highly-efficient-and-reusable-ru-nay-catalyst-base-free-oxidation-5-hydroxymethylfurfural-2501853nas a2200277 4500008004100000022001400041245012800055210006900183260000800252300001400260490000800274520094000282653000601222653001301228653001601241653001101257653000901268653001901277653003001296100002901326700002101355700001901376700002201395700002601417856013201443 2021 eng d a1011-372X00aUtilizing the oxygen carrier property of cerium iron oxide for the low-temperature synthesis of 1,3-butadiene from 1-butene0 aUtilizing the oxygen carrier property of cerium iron oxide for t cOCT a3057-30660 v1513 a

Low-temperature oxidative dehydrogenation (ODH) of 1-butene to 1,3-butadiene is one of the challenging reactions in the polymer industry. Towards this a highly dispersed cerium iron oxide was synthesized by citrate gel combustion method and employed for the synthesis of 1,3-butadiene (BD) from 1-butene. The reaction was carried out at low temperature under an oxygen-free atmosphere in a continuous flow mode fixed bed reactor. A decrease in the lattice parameters observed from PXRD and high-resolution TEM analysis proved that iron occupies cerium sites in the crystal lattice. XPS, TPR, and oxygen uptake studies quantified the nature and abundance of different oxygen species. ODH was observed through consuming lattice oxygens. The vacancies generated could be filled by re-oxidation with an external supply of oxygen which will restore the catalytic activity demonstrating the Mars van Krevelen mechanism. [GRAPHICS] .

10a110a1-butene10a3-butadiene10aCerium10airon10aLattice oxygen10aoxidative dehydrogenation1 aVenugopalan, Aswathy, T.1 aKandasamy, Prabu1 aGogoi, Pranjal1 aRatneshkumar, Jha1 aThirumalaiswamy, Raja uhttps://library.ncl.res.in/content/utilizing-oxygen-carrier-property-cerium-iron-oxide-low-temperature-synthesis-13-butadiene-101592nas a2200289 4500008004100000022001400041245010800055210006900163260000800232300001100240490000800251520061400259653001600873653002700889653002200916653001700938100002500955700002100980700002701001700002301028700001901051700002901070700002201099700002601121700002601147856012901173 2022 eng d a1566-736700aGreen synthesis of cyclohexanone to adipic acid over Fe-W oxides incorporated mesoporous carbon support0 aGreen synthesis of cyclohexanone to adipic acid over FeW oxides  cAUG a1064660 v1683 a

We have prepared iron and tungsten oxides incorporated mesoporous carbon (MC) catalysts using a simple hydrothermal methodology with different carbon sources, and the catalytic performance was investigated for cyclohexanone oxidation. An adequate amount of metal oxide loading has displayed a key role in the selective catalyst for adipic acid (AA) synthesis. The MC catalyst has shown its prime activity under the influence of redox properties of W5+/W6+ and Fe2+/Fe3+ as promoters. The 10%Fe 90%W-MC fructose as a carbon source catalyst has provided its best selectivity of 87% for AA at 120 ?C.

10aAdipic Acid10aLiquid phase oxidation10amesoporous carbon10aRedox center1 aMekala, Siva, Prasad1 aPrabu, Marimuthu1 aGawali, Sheetal, Datta1 aGopakumar, Karthik1 aGogoi, Pranjal1 aBhatkar, Akash, Ravindra1 aMohapatra, Gourab1 aUnnikrishanan, Eeswar1 aRaja, Thirumalaiswamy uhttps://library.ncl.res.in/content/green-synthesis-cyclohexanone-adipic-acid-over-fe-w-oxides-incorporated-mesoporous-carbon01473nas a2200229 4500008004100000022001400041245009200055210006900147260000800216300001100224490000800235520069800243100001900941700002000960700002500980700001901005700002201024700002601046700002101072700002601093856012401119 2022 eng d a1566-736700aMicrowave-assisted selective N-alkylation of aniline over molybdenum supported catalyst0 aMicrowaveassisted selective Nalkylation of aniline over molybden cAUG a1064640 v1683 a

Selective N-alkylation of aniline is a tough and challenging reaction due to over alkylation, therefore, catalyst with specific characteristics is needed to accomplish such transformations. In this work, a series of catalysts with molybdenum supported on alumina are prepared and subjected to various reaction conditions, out of which 30 PMA (Phosphomolybdic acid) showed the best result due to its proper combination of acidic sites. This reaction is sustainable and environmentally friendly as it is carried out with methanol as an alkylating source in the presence of microwave radiation at low temperature. The reaction data was compared with various other reactor systems too.

1 aBhatkar, Akash1 aMane, Samruddhi1 aMekala, Siva, Prasad1 aGogoi, Pranjal1 aMohapatra, Gourab1 aRamakrishnan, Archana1 aMarimuthu, Prabu1 aThirumalaiswamy, Raja uhttps://library.ncl.res.in/content/microwave-assisted-selective-n-alkylation-aniline-over-molybdenum-supported-catalyst