01884nas a2200253   4500008004100000022001400041245009800055210006900153260011000222300001000332490000700342520096700349653001701316653001601333653002001349653002201369653001401391100002201405700002501427700001901452700001501471700001801486856012601504       2010                        eng d  a0971-457X00aGas-phase oxidant-free oxidation of cyclohexanol over V2O5-MoO3-M2O (M = Na, K, Cs) catalysts0 aGasphase oxidantfree oxidation of cyclohexanol over V2O5MoO3M2O   aDR K S KRISHNAN MARG, PUSA CAMPUS, NEW DELHI 110 012, INDIAbNATL INST SCIENCE COMMUNICATION-NISCAIRcJAN  a43-490 v173 a<p>Oxidant-free oxidation (dehydrogenation) of cyclohexanol is carried out in a down-flow integral laboratory scale reactor using different alkali doped catalysts. The effect of reaction temperature, contact time (W/F) and doping of alkali metals is studied to check its effect on nature of prominent products of the reaction (cyclohexanone and cyclohexene). At lower temperature the cyclohexanone prevails whereas at higher temperature cyclohexene is observed in prominence. Acid-modified catalysts (with boron and phosphorous) facilitated cyclohexene selectivity whereas alkali modified catalysts facilitated cyclohexanone selectivity. Calcination of sodium modified catalyst at different temperatures under static condition affect characteristic phase intensity and cyclohexanone selectivity. XRD investigation showed formation of different inorganic phases as the characteristic of dopant. Cesium modified catalyst showed better dehydrogenation activity.</p>10aCyclohexanol10adehydration10aDehydrogenation10aElectronegativity10aV2O5-MoO31 aVyawahare, Y., K.1 aChumbhale, Vilas, R.1 aPardhy, S., A.1 aSamuel, V.1 aAswar, A., S.  uhttps://library.ncl.res.in/content/gas-phase-oxidant-free-oxidation-cyclohexanol-over-v2o5-moo3-m2o-m-na-k-cs-catalysts-0