Selyam, T. ; Vinod, M. P. ; Vijayamohanan, K. (1997) Catalytic and electrocatalytic oxidation of aniline to nitrobenzene over vanadium silicate molecular sieves: VS-1 usingt-butyl hydroperoxide (TBHP) as oxidant Reaction Kinetics and Catalysis Letters, 60 (1). pp. 137-144. ISSN 0133-1736
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Official URL: http://www.springerlink.com/content/a422v363h47136...
Related URL: http://dx.doi.org/10.1007/BF02477702
Abstract
A comparison of the results of catalytic and electrocatalytic oxidation of aniline using VS-1 in the presence of H2O2 and TBHP indicates remarkable differences in conversion and selectivity. VS-1 catalyzes the oxidation of aniline selectively to nitrobenzene (73%) in the presence oft-butyl hydroperoxide (TBHP), while azoxybenzene (95.2%) is formed selectively when H2O2 is used. Cyclic voltammetric studies show a three-step oxidation of aniline to nitrobenzene in H2O2 but in the presence of TBHP only one step is observed. Electrocatalytic oxidation of aniline to nitrobenzene occurs at a potential 700 mV less than that corresponding to H2O2 as oxidant along with a selectivity of 91.8%. The enhancement of electrocatalytic rate is attributed to the stabilization of electron deficient transition state.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer. |
| Keywords: | Aniline Oxidation with VS-1; Catalytic and Electrocatalytic Oxidation of Aniline |
| ID Code: | 68864 |
| Deposited On: | 07 Nov 2011 05:03 |
| Last Modified: | 07 Nov 2011 05:03 |
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