01964nas a2200265   4500008004100000022001400041245017500055210006900230260007300299300001200372490000600384520095100390653002101341653001301362653001301375653001101388653002201399653001801421653002701439653002801466100002601494700001801520700002801538856013201566       2007                        eng d  a1566-736700aReduction of oxygen by hydroxylammonium salt or hydroxylamine over supported Au nanoparticles for in situ generation of hydrogen peroxide in aqueous or non-aqueous medium0 aReduction of oxygen by hydroxylammonium salt or hydroxylamine ov  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcMAY  a811-8160 v83 a<p>Reaction of O-2 with hydroxylamine or its salts over a number of supported gold catalysts containing An nanoparticles (at 10-70 degrees C) has been studied at atmospheric pressure for the in situ generation of H2O2 (required for organic oxidation reactions in the synthesis of fine/specialty chemicals) in aqueous (water) or non-aqueous medium. Hydrogen peroxide in high yields with harmless by-products (viz. water and nitrogen) can be generated in situ by the reduction Of O-2 by hydroxylammonium sulfate (or chloride) or hydroxylamine using the supported gold catalysts particularly Au/Gd2O3, Au/La2O3 and Au/MgO, in aqueous (water) or non-aqueous (viz. methanol) medium at close to ambient conditions. The reduction of O-2 by hydroxylammonium salt to H2O2, however, requires preneutralization of the salt by alkali; in the absence of the neutralization, only water is formed in the reaction. (c) 2006 Elsevier B.V. All rights reserved.</p>10aAu Nanoparticles10aAu/Gd2O310aAu/La2O310aAu/MgO10aHydrogen peroxide10ahydroxylamine10ahydroxylammonium salts10ain situ H2O2 generation1 aChoudhary, Vasant, R.1 aJana, Prabhas1 aBhargava, Suresh, Kumar  uhttps://library.ncl.res.in/content/reduction-oxygen-hydroxylammonium-salt-or-hydroxylamine-over-supported-au-nanoparticles-situ