01421nas a2200205   4500008004100000022001400041245005500055210005500110260007700165300001200242490000600254520073500260653001200995653001401007653002801021653002401049100002901073700002101102856009201123       2008                        eng d  a1864-563100aCellulose conversion under heterogeneous catalysis0 aCellulose conversion under heterogeneous catalysis  aPO BOX 10 11 61, D-69451 WEINHEIM, GERMANYbWILEY-V C H VERLAG GMBHcNOV  a969-9750 v13 a<p>In view of current problems such as global warming, high oil prices, food crisis, stricter environmental laws, and other geopolitical scenarios surrounding the use of fossil feedstocks and edible resources, the efficient conversion of cellulose, a non-food biomass, into energy, fuels, and chemicals has received much attention. The application of heterogeneous catalysis could allow researchers to develop environmentally benign processes that lead to selective formation of value-added products from cellulose under relatively mild conditions. This Minireview gives insight into the importance of biomass utilization, the current status of cellulose conversion, and further transformation of the primary products obtained</p>10aBiomass10acellulose10aheterogeneous catalysis10asupported catalysts1 aDhepe, Paresh, Laxmikant1 aFukuoka, Atsushi  uhttps://library.ncl.res.in/content/cellulose-conversion-under-heterogeneous-catalysis-002980nas a2200289   4500008004100000022001400041245013400055210006900189260007600258300001400334490000700348520191000355653001902265653002502284653001702309653001902326653002402345100002602369700001902395700003502414700002102449700002402470700002002494700002802514700001702542856013102559       2008                        eng d  a0947-653900aHeteropoly acid encapsulated SBA-15/TiO(2) nanocomposites and their unusual performance in acid-catalysed organic transformations0 aHeteropoly acid encapsulated SBA15TiO2 nanocomposites and their   aCOMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USAbWILEY-BLACKWELLcFEB  a3200-32120 v143 a<p>The preparation of SBA-15/TiO(2) nanocomposites with different loadings of Keggin-type 12-tungsto-phosphoric acid (TPA) nanocrystals in their mesochannels through a simple and effective vacuum impregnation method is reported for the first time. The catalysts have been characterised by various sophisticated techniques, including XRD, HRSEM, and TEM. It has been found that the acidity and the textural parameters of the nanocomposites can be controlled by simply changing the loadings of TPA and TiO(2) or the calcination temperature. TPA and TiO(2) loadings of 15 and 22.4 wt %, respectively, and a calcination temperature of 1123 K have proved to be optimal for obtaining mesoporous nanocomposite materials with the highest acidity. Moreover, the activities of these catalysts in promoting hydroamination as well as Mannich and Claisen rearrangement reactions have been extensively investigated. The results show that the amount of TPA has a great influence on the activity of the nanocomposites in all of the reactions studied. The effects of other reaction parameters, such as temperature and reaction time, on the conversion and product selectivity have also been studied in detail. A kinetic analysis of the formation of the products under various reaction conditions is presented. It has been found that the activity of the nanocomposite composed of 15 wt % TPA deposited on 22.4 wt of TiO(2) on SBA-15 in promoting the studied reaction is remarkably higher than the catalytic activities shown by pure TPA, TiO(2)-loaded SBA-15, or TPA-loaded SBA-15. The results obtained have indicated that the acidity and the structural control of the nanocomposite materials are highly critical for obtaining excellent catalytic activity, and the presented highly acidic nanocomposites are considered to show great potential for use as catalysts in promoting many acid-catalysed organic transformations.</p>10aBronsted acids10amesoporous materials10ananoreactors10ananotechnology10asupported catalysts1 aSawant, Dhanashri, P.1 aJustus, Josena1 aBalasubramanian, Veerappan, V.1 aAriga, Katsuhiko1 aSrinivasu, Pavuluri1 aVelmathi, Sivan1 aHalligudi, Shivappa, B.1 aVinu, Ajayan  uhttps://library.ncl.res.in/content/heteropoly-acid-encapsulated-sba-15tio2-nanocomposites-and-their-unusual-performance-acid-002448nas a2200337   4500008004100000022001400041245010600055210006900161260007600230300001200306490000600318520131100324653001301635653001301648653002801661653001301689653002401702100002101726700001801747700001601765700002201781700002101803700001901824700002201843700002701865700002301892700002101915700002301936700002201959856012901981       2010                        eng d  a1864-563100aRenewable H-2 from glycerol steam reforming: effect of La2O3 and CeO2 addition to Pt/Al2O3 catalysts.0 aRenewable H2 from glycerol steam reforming effect of La2O3 and C  aCOMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USAbWILEY-BLACKWELLcMAY  a619-6280 v33 a<p>Glycerol is the main byproduct of biodiesel production and its increased production volume derives from the increasing demand for biofuels. The conversion of glycerol to hydrogen-rich mixtures presents an attractive route towards sustainable biodiesel production. Here we explored the use of Pt/Al2O3-based catalysts for the catalytic steam reforming of glycerol, evidencing the influence of La2O3 and CeO2 doping on the catalyst activity and selectivity. The addition of the latter metal oxides to a Pt/Al2O3 catalyst is found to significantly improve the glycerol steam reforming, with high H-2 and CO2 selectivities. A good catalytic stability is achieved for the Pt/La2O3/Al2O3 system working at 350 degrees C, while the Pt/CeO2/Al2O3 catalyst sharply deactivates after 20 h under similar conditions. Studies carried out on fresh and exhausted catalysts reveal that both systems maintain high surface areas and high Pt dispersions. Therefore, the observed catalyst deactivation can be attributed to coke deposition on the active sites throughout the catalytic process and only marginally to Pt nanoparticle sintering. This work suggests that an appropriate support composition is mandatory for preparing high-performance Pt-based catalysts for the sustainable conversion of glycerol into syngas.</p>10abiofuels10aGlycerol10aheterogeneous catalysis10aplatinum10asupported catalysts1 aMontini, Tiziano1 aSingh, Rakesh1 aDas, Piyali1 aLorenzut, Barbara1 aBertero, Nicolas1 aRiello, Pietro1 aBenedetti, Alvise1 aGiambastiani, Giuliano1 aBianchini, Claudio1 aZinoviev, Sergey1 aMiertus, Stanislav1 aFornasiero, Paolo  uhttps://library.ncl.res.in/content/renewable-h-2-glycerol-steam-reforming-effect-la2o3-and-ceo2-addition-ptal2o3-catalysts-002145nas a2200289   4500008004100000022001400041245018200055210006900237260007500306300001200381490000600393520109500399653000601494653000601500653001601506653000601522653002101528653001801549653002001567653002401587653002401611100002401635700002701659700002101686700002201707856012601729       2015                        eng d  a2193-580700aAlumina-supported copper iodide: an efficient and recyclable catalyst for microwave-assisted synthesis of 1,4-disubstituted 1,2,3-triazoles via three-component reaction in water0 aAluminasupported copper iodide an efficient and recyclable catal  aPOSTFACH 101161, 69451 WEINHEIM, GERMANYbWILEY-V C H VERLAG GMBHcSEP  a943-9510 v43 a<p>A one-pot procedure for the synthesis of 1,4-disubstituted 1,2,3-triazoles by a three-component reaction of allyl or benzyl halides, sodium azide, and terminal alkynes over a neutral alumina-supported copper iodide catalyst has been developed. The products were isolated by simple filtration followed by washing of the catalyst with acetone. The products were obtained in almost pure form in up to 98% yield (TON 495). The catalyst can be recycled for more than eight subsequent reactions. The halides are directly converted into triazoles via in situ formation of azides and thus handling of hazardous azides can be avoided. The broad scope of this protocol is shown by the synthesis of a variety of diversely substituted 1,2,3-triazoles and also two-component azide-alkyne click reaction. The key features of this procedure are the use of water as a solvent, recyclability of the catalyst up to eight runs without appreciable loss of activity, and high yields of products. The catalyst has been fully characterized by FTIR, solid-state NMR and EDX spectroscopy, ESEM, TGA, and XRD.</p>10a110a210a3-triazoles10a410acopper(I) iodide10aCycloaddition10adisubstituted 110aMicrowave chemistry10asupported catalysts1 aAgalave, Sandip, G.1 aPharande, Shrikant, G.1 aGade, Swapna, M.1 aPore, Vandana, S.  uhttps://library.ncl.res.in/content/alumina-supported-copper-iodide-efficient-and-recyclable-catalyst-microwave-assisted-001848nas a2200289   4500008004100000022001400041245013100055210006900186260007700255300001400332490000700346520079400353653002301147653001301170653001401183653002401197653002201221100001401243700002101257700002301278700002401301700002601325700002501351700002101376700002901397856013201426       2015                        eng d  a2192-650600aReduced graphene oxide composite with oxidizable manganese/cobalt mixed oxide for p-cresol oxidation by using molecular oxygen0 aReduced graphene oxide composite with oxidizable manganesecobalt  aBOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANYbWILEY-V C H VERLAG GMBHcJUL  a1164-11690 v803 a<p>A composite of graphene oxide (GO) with mixed oxide (MnCo) was prepared by using a solvothermal method. During the synthesis, both the reduction of GO and growth of metal oxides took place simultaneously. The as-prepared composite material was highly selective for the liquid-phase oxidation of p-cresol to form p-hydroxybenzaldehyde in 71% yield within 1h. The composite material was characterised by SEM, X-ray photoelectron spectroscopy, high-resolution TEM and cyclic voltammetry (CV). A CV study revealed that the increase in the redox potential of the mixed oxide after being supported on GO, led to its higher activity of the catalyst for the oxidation reaction. The stability of the catalyst under the reaction conditions was studied by its successful reuse in three cycles.</p>10acyclic voltammetry10agraphene10aOxidation10asupported catalysts10atransition metals1 aJha, Ajay1 aPatil, Sagar, H.1 aSolanki, Bhanu, P.1 aRibeiro, Ana, P. C.1 aCastro, Carlos, A. N.1 aPatil, Kashinath, R.1 aCoronas, Alberto1 aRode, Chandrashekhar, V.  uhttps://library.ncl.res.in/content/reduced-graphene-oxide-composite-oxidizable-manganesecobalt-mixed-oxide-p-cresol-oxidation-002091nas a2200277   4500008004100000022001400041245017600055210006900231260000800300300001400308490000700322520109300329653001301422653002801435653001901463653001401482653002401496100002601520700002101546700001701567700002101584700002801605700002101633700002801654856013101682       2018                        eng d  a1867-388000aSelective oxidation of cyclohexane to cyclohexanone using chromium oxide supported mesoporous MCM-41 nanospheres: probing the nature of catalytically active chromium sites0 aSelective oxidation of cyclohexane to cyclohexanone using chromi  cAUG  a3291-32980 v103 a<p>Highly dispersed chromium oxide supported mesoporous MCM-41 nanosphere catalysts have been synthesized using a simple wet impregnation method. This work is devoted to a systematic study to reveal the active Cr sites in chromium oxide supported MCM-41 nanosphere catalysts for the selective oxidation of cyclohexane to cyclohexanone. To probe the nature of the active species, we synthesized 0.5-10wt% Cr loaded catalysts and characterized them by using XRD, UV/Vis spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, extended X-ray absorption fine structure analysis, X-ray absorption near edge structure analysis, N-2 sorption analysis, FTIR spectroscopy, (SiNMR)-Si-29 spectroscopy, SEM, and TEM. The liquid-phase oxidation of cyclohexane to cyclohexanone (99% selectivity) was performed under mild reaction conditions, and the results reveal clearly that the 5wt% Cr loaded catalyst was optimum for the reaction. The initial composition of isolated Cr3+ species in the catalyst is the major factor that influences the enhanced activity for cyclohexane oxidation.</p>10achromium10aheterogeneous catalysis10aNanostructures10aOxidation10asupported catalysts1 aBetsy, Kurisingal, J.1 aNayak, Chandrani1 aLazar, Anish1 aKrishnan, Athira1 aBhattacharyya, Dibyendu1 aJha, Shambhu, N.1 aVinod, Chathakudath, P.  uhttps://library.ncl.res.in/content/selective-oxidation-cyclohexane-cyclohexanone-using-chromium-oxide-supported-mesoporous-mcm02115nas a2200253   4500008004100000022001400041245014200055210006900197260000800266300001200274490000600286520124700292653001501539653001801554653002401572653002401596653001101620100001801631700002101649700002201670700001901692700002101711856012901732       2019                        eng d  a2194-428800aDry reforming of methane in DBD plasma over Ni-based catalysts: influence of process conditions and support on performance and durability0 aDry reforming of methane in DBD plasma over Nibased catalysts in  cAPR  a18010080 v73 a<p>The conversion of greenhouse gases, H-2 and CO selectivity, H-2/CO ratio, and carbon formation in the dry reforming reaction over Ni-supported ZSM-5, Al2O3, and TiO2 are tested under thermal, plasma, and plasma-thermal conditions. It is observed that the dielectric nature, specific surface area, and acid-base properties of the support influence the performance during the DRM reaction. Typical results indicate that the best activity and syngas yield are achieved with 15Ni/Al2O3 under plasma conditions, possibly due to the high dielectric constant and surface area of Al2O3 and nanosize of Ni. In the thermal condition, the highest conversion of 73% and 68% for CH4 and CO2, respectively, is achieved over 15Ni/ZSM-5 at 500 degrees C. Plasma-assisted thermal conditions provide the highest conversion due to the activation of reactants and their partial conversion in the plasma zone before entering into the catalytic zone. The plasma-assisted thermocatalytic conversions of CH4 and CO2 reach the best values of 76% and 71%, respectively, on 15Ni/ZSM-5. Under the same conditions, 68% and 65% conversion of CH4 and CO2, respectively, is achieved with 15Ni/Al2O3 where the selectivity for H-2 and CO is 45% and 58%, respectively.</p>
10aDBD plasma10aDry reforming10areaction conditions10asupported catalysts10aSyngas1 aRay, Debjyoti1 aNepak, Devadutta1 aJanampelli, Sagar1 aGoshal, Partha1 aSubrahmanyam, Ch  uhttps://library.ncl.res.in/content/dry-reforming-methane-dbd-plasma-over-ni-based-catalysts-influence-process-conditions-and