A Study on 1-Butene Oxidation over Vanadium Oxide Electrode

바나듐산화물 전극상에서 1-부텐의 산화반응 연구

  • Received : 1997.12.30
  • Accepted : 1998.05.23
  • Published : 1998.08.10

Abstract

The electrochemical characteristics of $V_2O_5$ as working electrode were studied in the cell (1-butene+$O_2$, $V_2O_5{\mid}YSZ{\mid}Ag$, $O_2$) with a YSZ solid electrolyte. The sintering of Ag as a counter electrode was occurred after calcination, and the structure which has the pores of over $3{\mu}m$ was achieved. In particular, the peak of (010) plane of the working electrode on the XRD spectrum which is responsible for selective oxidation appeared after calcination. The major product of 1-butene oxidation over $V_2O_5$ was butadiene. The technique of SEP (solid electrolyte potentiometry) was used to monitor the chemical potential of chemical species adsorbed on the working electrode. Over a wide range of gas compositions of 1-butene and oxygen, open circuit voltage (OCV) exhibited the mixed potential of surface oxygen activity.

Keywords

1-Butene Oxidation;Vanadium Oxide Electrode;Solid Electrolyte Potentiometry;Open Circuit Voltage

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