02095nas a2200229   4500008004100000022001400041245009200055210006900147260007100216300001600287490000800303520124300311100002201554700002001576700002001596700002001616700002101636700002401657700002901681700002901710856012601739       2011                        eng d  a1932-744700aSelectivity tailoring in liquid phase oxidation over MWNT-Mn3O4 nanocomposite catalysts0 aSelectivity tailoring in liquid phase oxidation over MWNTMn3O4 n  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcAUG  a15440-154480 v1153 a<p>Highly selective multiwalled nanotubes (MWNT)-Mn3O4 nano-composite catalyst was designed for liquid phase oxidation of p-cresol, which gave highest selectivity of 90% to the first step oxidation product, p-hydroxy benzyl alcohol. Mn3O4 nanoparticles and MWNT-Mn3O4 nanocomposites were synthesized by coprecipitation route using mixed precursors under controlled conditions. The phase purity of Mn3O4 and the formation of MWNT-Mn3O4 nanocomposites were confirmed by X-ray diffraction, Raman spectroscopy, and X-ray photoelectron spectroscopy. High-resolution transmission electron microscopy revealed the selective exposure of (101) and (001) planes of Mn3O4 nanoparticles in the MWNT-Mn3O4 composite, while lowering in oxidizing capacity of MWNT-Mn3O4 nanocomposite confirmed by cyclic voltametry was due to incorporation of electron rich MWNT. Thus, selectivity tuning of the new material (MWNT-Mn3O4 nanocomposite) was found to be due to alteration in both geometric as well as electronic properties. A plausible reaction pathway also has been proposed involving the predominant role of nucleophilic lattice oxygen (O2-) species due to exposure of particular crystal planes giving highest selectivity to p-hydroxy benzyl alcohol.</p>1 aBiswal, Mandakini1 aDhas, Vivek, V.1 aMate, Vivek, R.1 aBanerjee, Abhik1 aPachfule, Pradip1 aAgrawal, Kanika, L.1 aOgale, Satishchandra, B.1 aRode, Chandrashekhar, V.  uhttps://library.ncl.res.in/content/selectivity-tailoring-liquid-phase-oxidation-over-mwnt-mn3o4-nanocomposite-catalysts-0