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Journal of Applied Electrochemistry

, Volume 20, Issue 2, pp 269–280 | Cite as

Electrogenerative oxidation of model alcohols at packed bed anodes

  • John C. Card
  • Stephen E. Lyke
  • Stanley H. Langer
Article

Abstract

The electrogenerative oxidation of dissolved ethanol and 2-propanol in aqueous 1 to 3 M sulphuric acid electrolyte was investigated at several types of packed bed anodes in ion exchange membrane separated cells. The operation of these electrogenerative cells which incorporated a platinum-catalysed commercial oxygen gas-diffusion-type cathode is described. It appears that for dissolved normal primary alcohols composite Teflon-platinum fuel-cell-type electrodes favour aldehyde formation while ‘platinum on graphite’ electrodes favour carboxylic acid formation. Oxidation of dissolved 2-propanol could be controlled to give acetone exclusively.

Keywords

Graphite Platinum Aldehyde Acid Formation Carboxylic Acid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Nomenclature

A

current accountability (see Equation 4) (%)

d

thickness of the packed bed (cm)

F

Faraday constant (C mol−1)

i

current density (A cm−2)

I

cell current (A)

κ

conductivity of the electrolyte (Ω−1 cm−1)

N

molar production rate (g mol s−1)

α

charge transfer coefficient

ɛ

void fraction

Φ

potential in the electroyte phase (V)

n

number of electrons passed in the electrode reaction

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Copyright information

© Chapman and Hall Ltd. 1990

Authors and Affiliations

  • John C. Card
    • 1
  • Stephen E. Lyke
    • 1
  • Stanley H. Langer
    • 1
  1. 1.Chemical Engineering DepartmentUniversity of WisconsinMadisonUSA

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