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A new approach to electrochemical production of benzaldehyde from toluene in an undivided cell in the presence of the couple V5+/V4+

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Abstract

Oxidation of toluene to benzaldehyde in the presence of the redox couple V5+/V4+ was carried out in an undivided cell where oxygen gas was continuously bubbled over the cathodic surface and the electrolyte was a mixture of aqueous H2SO4 solution containing V5+ and toluene. Some experimental conditions affecting the current efficiency for benzaldehyde production, such as H2SO4 concentration, current density, V5+ concentration and surfactants, were determined. The maximum current efficiency for benzaldehyde production at ambient temperature was 156.3% under the conditions of 11 M H2SO4, 2.7 × 10−4 M CTAB, current density 1.25 mA cm−2 and 0.0128 M V5+.

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Authors and Affiliations

  1. Chemical Engineering Department of the, Xiangtan Polytechnic University, Xiangtan, 411201, Hunan, P.R. China

    Y. Qingfeng, L. Xiaoping & Z. Xiuling

Authors
  1. Y. Qingfeng
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  2. L. Xiaoping
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  3. Z. Xiuling
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Correspondence to Y. Qingfeng.

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Qingfeng, Y., Xiaoping, L. & Xiuling, Z. A new approach to electrochemical production of benzaldehyde from toluene in an undivided cell in the presence of the couple V5+/V4+ . Journal of Applied Electrochemistry 33, 273–277 (2003). https://doi.org/10.1023/A:1024175515730

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