01686nas a2200181   4500008004100000022001400041245010200055210006900157260009200226300001200318490000700330520093900337100002801276700002501304700002401329700002101353856013001374       2010                        eng d  a0031-865500aPhotodegradation of methanol under UV-visible irradiation by titania dispersed on polyester cloth0 aPhotodegradation of methanol under UVvisible irradiation by tita  aCOMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USAbWILEY-BLACKWELL PUBLISHING, INCcMAR  a241-2460 v863 a<p>Titania supported on polyester fabric (TiO(2)-PY) with varying titania loadings (2-7 wt%) were prepared via the dip-coating method at room temperature using an aqueous slurry of anatase titania. Structural and morphological characterizations by X-ray diffraction and scanning electron microscopy revealed that the titanium dioxide crystallites deposited on the surface of the polyester fabric were in the micrometer range while their phase remained to be anatase. Photocatalytic activity of TiO(2)-PY fabric catalysts was evaluated for vapor-phase oxidation of methanol in air as a test reaction in the presence of UV as well as solar radiation under ambient conditions. These catalysts were found to be quite active in both UV and solar irradiation with activity being higher in the former case. CO(2) yield from photo-oxidation of methanol depended on titania content and also on its dispersion over polyester fabric support.</p>1 aBhattacharyya, Kaustava1 aTripathi, Arvind, K.1 aGupta, Narendra, M.1 aTyagi, Avesh, K.  uhttps://library.ncl.res.in/content/photodegradation-methanol-under-uv-visible-irradiation-titania-dispersed-polyester-cloth-001909nas a2200217   4500008004100000022001400041245009800055210006900153260011000222300001400332490000600346520103900352100002701391700002901418700002801447700002601475700001901501700002101520700002601541856012401567       2015                        eng d  a2046-206900aEfficient robust fluorite CeZrO4-delta oxide catalyst for the eco-benign synthesis of styrene0 aEfficient robust fluorite CeZrO4delta oxide catalyst for the eco  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcDEC  a3619-36260 v53 a<p>In this work, we have reported CeO2, ZrO2, physically mixed (PH)-CeO2/ZrO2 and fluorite CeZrO4-delta oxides and their catalytic activities for the oxidative dehydrogenation (ODH) of ethyl benzene (EB) to styrene (ST) using molecular oxygen, air and carbon dioxide as oxidants. The catalysts were prepared by a gel-combustion method followed by calcination at 600 degrees C for 6 h and subjected to catalytic activity measurements. All the catalysts were characterized and studied by various physicochemical methods. The reaction parameters were varied systematically such as different catalysts, oxidants, temperatures, EB flow and oxidant flow. CeZrO4-delta accounted for a 47% styrene yield for 72 h without any significant deactivation under optimized reaction conditions. A thorough analysis of the spent catalysts demonstrated the robustness of the catalyst for this reaction under different oxidants and reaction conditions. Pristine CeO2 deactivated easily and the activity decreased with time on stream of the reaction.</p>1 aPeriyasamy, Kaliyappan1 aAswathy, Venugopalan, T.1 aKumar, Venugopal, Ashok1 aManikandan, Marimuthu1 aShukla, Rakesh1 aTyagi, Avesh, K.1 aRaja, Thirumalaiswamy  uhttps://library.ncl.res.in/content/efficient-robust-fluorite-cezro4-delta-oxide-catalyst-eco-benign-synthesis-styrene-001570nas a2200169   4500008004100000245009400041210007000135260000800205490000800213520093500221100002301156700002801179700002601207700001901233700002101252856012701273       2018                        eng d00aRole of palladium crystallite size on CO oxidation over CeZrO 4-δ supported Pd catalysts0 aRole of palladium crystallite size on CO oxidation over CeZrO 4δ  cAUG0 v4553 aPhotodeposited palladium on nanocrystalline CeZrO 4-δ support was evaluated for CO oxidation, as a function of particle size and pre-treatment. All the catalysts were well characterized by XRD, SEM, EDX, TEM, CO chemi-sorption and Raman spectroscopy. It was observed that change in photodeposition time alters the average crystallite size of Pd, and the same was confirmed by CO chemisorption. 7 nm average crystallite size of Pd exhibited excellent catalytic activity for CO oxidation. In order to understand the effect of support and metal-support interaction, 1 wt% Pd was deposited deliberately onto reduced and oxidized CeZrO 4-δ support. The reduced support with anionic vacancies and more Ce 3+ species exhibited an improvement in CO oxidation at onset temperature. Detailed analysis shows that Pd-deposition occurs preferentially at oxygen-vacancy sites and subsequent metal-support interaction influences the catalysis.1 aBurange, Anand, S.1 aReddy, Kasala, Prabhakr1 aGopinath, Chinnakonda1 aShukla, Rakesh1 aTyagi, Avesh, K.  uhttps://library.ncl.res.in/content/role-palladium-crystallite-size-co-oxidation-over-cezro-4-%CE%B4-supported-pd-catalysts