01725nas a2200229 4500008004100000022001400041245009900055210006900154260007300223300001200296490000800308520090000316653001301216653002101229653001401250653002001264653001301284100002001297700002501317700002901342856012401371 2008 eng d a1387-181100aIncorporation of zirconium in medium-pore aluminophosphate molecular sieves with AEL framework0 aIncorporation of zirconium in mediumpore aluminophosphate molecu aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcFEB a223-2290 v1083 a

Zirconium incorporated alurninophosphate molecular sieves ZrAPO-11 was synthesized by hydrothermal method. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy, thermogravimetric/differential thermal analysis (TGA/DTA), diffuse reflectance UV-visible spectroscopy, magic-angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy (P-31 and Al-27). The acidity of the materials were determined by temperature programmed desorption (TPD) of ammonia. X-ray diffraction and scanning electron microscopy reveals formation of crystalline material in pure phase. Thermal analysis shows higher template content in zirconium containing samples than the corresponding AlPOs. MAS NMR suggests incorporation of zirconium in the framework. TPD reveals that the ZrAPO-11 samples were of higher acidity than AIPO(4)-11 (c) 2007 Elsevier Inc. All rights reserved.

10aAlPO4-1110aAluminophosphate10acatalysis10aMolecular sieve10aZrAPO-111 aGanguli, J., N.1 aChakrabortty, Dhruba1 aSatyanarayana, C., V. V. uhttp://library.ncl.res.in/content/incorporation-zirconium-medium-pore-aluminophosphate-molecular-sieves-ael-framework-001821nas a2200229 4500008004100000022001400041245009900055210006900154260007300223300001000296490000800306520100300314653000801317653002101325653001401346653002001360653001301380100002501393700002001418700002901438856012401467 2011 eng d a1387-181100aIncorporation of zirconium in medium-pore aluminophosphate molecular sieves with AFO framework0 aIncorporation of zirconium in mediumpore aluminophosphate molecu aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJAN a65-710 v1373 a

Zirconium substituted medium pore microporous aluminophosphate molecular sieve ZrAPO-41 was prepared by hydrothermal synthesis under autogenous pressure The formation of the pure phase was confirmed by powder X-ray diffraction (XRD) and scanning electron microscopy (SEM)The thermal behaviour of the material was investigated by carrying out thermogravimetric/differential thermal analysis (TGA/DTA) The zirconium environment was studied by magic-angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy which suggests incorporation of zirconium into the framework UV-Visible diffuse reflectance study also supports the claim The temperature programmed desorption (TPD) of ammonia reveals that the acidity of ZrAPO 41 samples is higher than that of pure AlPO4-41 The catalytic activity of the samples was investigated through phenol hydroxylation reaction The result show hi E her catalytic activity for ZrAPO-41 samples compared to AlPO4-41 (C) 2010 Elsevier Inc All rights reserved

10aAFO10aAluminophosphate10acatalysis10aMolecular sieve10aZrAPO 411 aChakrabortty, Dhruba1 aGanguli, J., N.1 aSatyanarayana, C., V. V. uhttp://library.ncl.res.in/content/incorporation-zirconium-medium-pore-aluminophosphate-molecular-sieves-afo-framework-001995nas a2200241 4500008004100000022001400041245011800055210006900173260011000242300001600352490000600368520106800374100001801442700001801460700001601478700001701494700001701511700002101528700002901549700002101578700002301599856013101622 2014 eng d a2046-206900aInfluence of method of preparation on the activity of La-Ni-Ce mixed oxide catalysts for dry reforming of methane0 aInfluence of method of preparation on the activity of LaNiCe mix aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcOCT a50226-502320 v43 a

La-Ni-x-Ce1-x mixed oxide catalysts were prepared by a sol-gel method varying the Ni composition (0 <= x <= 1). The catalysts were characterized by X-ray diffraction (XRD), inductively coupled plasma optical emission spectroscopy (ICP-OES), BET surface area, X-ray photoelectron spectroscopy (XPS), temperature-programmed reduction (TPR), H-2 chemisorption and Fourier transform infrared spectroscopy (FT-IR) techniques. CO2 reforming of methane was carried out at atmospheric pressure and 800 degrees C, maintaining a reactant CO2/CH4/N-2 ratio of 80/80/80 (total flow rate = 240 ml min(-1), GHSV of 28 800 h(-1)). The catalysts offered higher activity even at lower Ni compositions. LaNi0.4Ce0.6O3. showed the highest conversion of CH4 and CO2. The H-2/CO ratio in the syngas was stable at 0.85 +/- 0.02. The performance of the sol-gel catalysts was compared with that of the hydrothermally prepared catalysts, reported earlier. High surface area and better Ni dispersion were found to be the reasons for superior activity of the sol-gel catalysts.

1 aSagar, T., V.1 aSreelatha, N.1 aHanmant, G.1 aSurendar, M.1 aLingaiah, N.1 aRao, K., S. Rama1 aSatyanarayana, C., V. V.1 aReddy, I., A. K.1 aPrasad, P., S. Sai uhttp://library.ncl.res.in/content/influence-method-preparation-activity-la-ni-ce-mixed-oxide-catalysts-dry-reforming-methane-001851nas a2200241 4500008004100000022001400041245009300055210006900148260000800217300001200225490000700237520110600244653001201350653001201362653001701374653001601391653000801407653000801415100002201423700002401445700002901469856011101498 2020 eng d a1002-072100aInfluence of cobalt on performance of Cu-CeO2 catalysts for preferential oxidation of CO0 aInfluence of cobalt on performance of CuCeO2 catalysts for prefe cSEP a941-9500 v383 a

{Copper and cobalt oxides supported on CeO2 were investigated for preferential oxidation of carbon monoxide (CO-PROX) in the presence of excess hydrogen and CO2. (CuO)(1-x)(Co3O4)(x/3)-(CeO2)(2.5) (x = 0, 0.25, 0.50, 0.75, 0.85 and 1) catalysts were prepared by coprecipitation method. These mixed oxide catalysts were characterized by several physicochemical techniques, such as BET surface area (SBET), X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), temperature programmed reduction (TPR) and X-ray photoelectron spectroscopy (XPS). XRD studies show the peaks related to CuO and Co3O4 phases in copper and cobalt containing CeO2 catalysts. The average particle size of the CeO2 crystallites is in the range of 8-10 nm as evaluated from HRTEM studies. XPS studies demonstrate that Cu, Co and Ce in (CuO)(1-x)(Co3O4)(x/3)-(CeO2)(2.5) catalysts are presented in +2 and +1, +3 and +2 and +4 and +3 oxidation states, respectively. The catalyst with x = 0.75 shows better activity and selectivity towards CO-PROX. Though the catalyst with only copper (CuO-CeO2

10aCO-PROX10aCu-CeO210aH2O addition10aMethanation10aXPS10aXRD1 aMalwadkar, Sachin1 aBera, Parthasarathi1 aSatyanarayana, C., V. V. uhttp://library.ncl.res.in/content/influence-cobalt-performance-cu-ceo2-catalysts-preferential-oxidation-co01973nas a2200193 4500008004100000022001400041245012200055210006900177260000900246300001200255490000600267520126000273100001901533700002201552700002101574700002901595700002601624856012901650 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 uhttp://library.ncl.res.in/content/insights-catalytic-activity-runay-catalysts-efficient-h-2-production-through-aqueous-phase