Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Carbon Dioxide Reduction to Alcoholson Perovskite-Type $La_{0.9}$$Sr_{0.1}$$CuO_3$ Electrodes

페로브스카이트 ($La_{0.9}$$Sr_{0.1}$$CuO_3$) 전극에서 이산화탄소의 전해환원에 의한 알콜류 생성

  • 김태근 (부경대학교 공과대학 환경공학과) ;
  • 임준혁 (부경대학교 공과대학 환경공학과)
  • Published : 1996.10.01
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Abstract

The electrochemical carbon dioxide reduction to produce acetaldehyde, methanol and ethanol is investigated by using perovskite type electrode ($La_{0.9}$$Sr_{0.1}$$CuO_3$). The experiments were Performed under 100 mA/cm2 and -2 to -2.5 V vs. Ag/AgCl. The highest faradaic efficiencies for methanol, ethanol, acetaldehyde were 11.6, 15.3, and 6.2%, respectively. The experimental data demonstrated that the capability of the perovskite type oxide for the electrode of electrochemical carbon dioxide reduction to produce alcohols was superior to other metal electrode. Key words : Perovskite, Electrode, Alcohol Formation, Electrochemical Reduction, Carbon Dioxide Fixation.

페로브스카이트 ($La_{0.9}$$Sr_{0.1}$$CuO_3$) 전극을 이용하여 이산화탄소를 메탄올, 에탄올등의 알콜류와 아세트 알데히드로 전해환원하였다. 전해환원 실험은 전류밀도 100mA/c$m^2$ 그리고 환원 전위 -2 to -2.5 V vs. Ag/AgCl에서 수행하였다. 실험결과 메탄올은 11.6%, 에탄올은 15.3% 그리고 아세트알데히드는 6.2 %의 최고효율을 나타내었다. 따라서 페로브스카이트 전극은 알콜생성 면에서 기타 다른 금속전극에 비하여 매우 우수한 효과를 보여주었다.

Keywords

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