01585nas a2200217   4500008004100000022001400041245021000055210006900265260007300334300001400407490000600421520066000427653003001087653002201117653002901139653001301168653001401181100002601195700001801221856012801239       2008                        eng d  a1566-736700aDirect oxidation of H-2 to H2O2 over PdO/Al2O3 catalysts in aqueous acidic medium: influence on H2O2 formation of Pd loading, calcination temperature and reduction of catalyst and presence of halide anions0 aDirect oxidation of H2 to H2O2 over PdOAl2O3 catalysts in aqueou  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcAUG  a2371-23750 v93 a<p>Effects of the Pd loading (0.2-10 wt%), calcination temperature (400-900 degrees C) and reduction of PdO/Al2O3 on its performance in the H-2-to-H2O2 oxidation (with H-2/O-2 = 1:1) in an aqueous 0.1 M H3PO4 medium, in the absence and presence of different halide anions, under ambient conditions have been investigated. The effect of calcination temperature on the H2O2 formation varied depending upon the Pd loading. The influence of the different halide anions was found to depend strongly on the nature of halide anion (F-, Cl-, Br- or I-) and the oxidation state of Pd and its loading in the catalyst. (C) 2008 Elsevier B.V. All rights reserved.</p>10ahalide catalyst promoters10aHydrogen peroxide10aoxidation of H-2 to H2O210aPd/Al2O310aPdO/Al2O31 aChoudhary, Vasant, R.1 aJana, Prabhas  uhttps://library.ncl.res.in/content/direct-oxidation-h-2-h2o2-over-pdoal2o3-catalysts-aqueous-acidic-medium-influence-h2o2-0