01257nas a2200253   4500008004100000022001400041245006000055210005900115260007500174300001200249490000700261520042900268653001600697653002700713653001300740653002600753653000800779100002600787700002100813700002500834700002100859700002900880856009400909       2009                        eng d  a1022-552800aLiquid phase oxidation of p-cresol over cobalt saponite0 aLiquid phase oxidation of pcresol over cobalt saponite  a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGER/PLENUM PUBLISHERScJUN  a784-7880 v523 a<p>Liquid phase oxidation of p-cresol was carried out over a Co-saponite catalyst in a temperature and pressure range of 333-393 K and 20-827 kPa, respectively in n-propanol. Co-saponites with varying cobalt content (5-30%) were prepared and screened among which 13% Co-saponite gave the highest conversion of 92% of p-cresol with 92% selectivity to p-hydroxybenzaldehyde without formation of any non-oxidation products.</p>10aCo-saponite10aLiquid phase oxidation10ap-Cresol10ap-Hydroxybenzaldehyde10aXPS1 aKshirsagar, Vikas, S.1 aGarade, Ajit, C.1 aPatil, Kashinath, R.1 aShirai, Masayuki1 aRode, Chandrashekhar, V.  uhttps://library.ncl.res.in/content/liquid-phase-oxidation-p-cresol-over-cobalt-saponite-001674nas a2200253   4500008004100000022001400041245012900055210006900184260005700253300001200310490000800322520076900330653001301099653001701112653002401129653001201153653001801165653002201183653000801205100002101213700002501234700002901259856013201288       2012                        eng d  a1011-372X00aSurface species of supported ruthenium catalysts in selective hydrogenation of levulinic esters for bio-refinery application0 aSurface species of supported ruthenium catalysts in selective hy  a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGERcJUN  a779-7870 v1423 a<p>Several supported noble metal catalysts were screened for the hydrogenation of methyl levulinate to gamma-valerolactone (GVL). Among these catalysts 5 % Ru/C showed the highest conversion of 95 % of methyl levulinate with 91 % selectivity to GVL. A detailed characterization was carried out using TPR, XRD, XPS and BET techniques. XPS studies revealed that higher extent of Ru-0 species in case of carbon supported Ru was responsible for its higher hydrogenation activity as compared to Ru on other supports. Effect of process parameters such as temperature, H-2 pressure, catalyst and substrate concentration and metal loading on methyl LA conversion and selectivity to GVL also has been studied. 5 % Ru/C catalyst was found to be stable up to five reuses.</p>10a5 % Ru/C10aBiofeedstock10agamma-Valerolactone10aH-2-TPR10aHydrogenation10aMethyl levulinate10aXPS1 aHengne, Amol, M.1 aBiradar, Narayan, S.1 aRode, Chandrashekhar, V.  uhttps://library.ncl.res.in/content/surface-species-supported-ruthenium-catalysts-selective-hydrogenation-levulinic-esters-bio-001670nas a2200241   4500008004100000022001400041245010800055210006900163260007300232300001000305490000700315520079400322653001001116653002401126653002701150653002101177653002101198653000801219100002001227700002101247700002901268856013101297       2013                        eng d  a1566-736700aHeterogeneous Co3O4 catalyst for selective oxidation of aqueous veratryl alcohol using molecular oxygen0 aHeterogeneous Co3O4 catalyst for selective oxidation of aqueous   aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcMAR  a66-690 v333 a<p>Nano-structured, spinel Co3O4 catalyst was developed for the aqueous phase oxidation of veratryl alcohol, which showed the highest conversion of 85% with 96% selectivity to veratryl aldehyde. The co-existence of Co3+ and Co2+ species in the octahedral and tetrahedral positions respectively, was confirmed by XPS, cyclic voltammogram, TPR and TPO characterization. The rod-like morphology of Co3O4 catalyst was confirmed by HRTEM. The effects of various reaction parameters namely, catalyst concentration, temperature and partial oxygen pressure on conversion and selectivity patterns were also studied for the oxidation of veratryl alcohol. This catalyst also showed an excellent stability as evidenced by successful reusability for three times. (C) 2012 Published by Elsevier B.V.</p>10aCo3O410aCyclic voltammogram10aLiquid phase oxidation10aMolecular oxygen10aVeratryl alcohol10aXPS1 aMate, Vivek, R.1 aShirai, Masayuki1 aRode, Chandrashekhar, V.  uhttps://library.ncl.res.in/content/heterogeneous-co3o4-catalyst-selective-oxidation-aqueous-veratryl-alcohol-using-molecular-0