Photoelectrochemical CO2 reduction on 3C-SiC photoanode in aqueous solution

Jun Tae Song, Takayuki Iwasaki, Mutsuko Hatano

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Photoelectrochemical (PEC) carbon dioxide (CO2) reduction on a 3C-SiC photoanode is demonstrated in aqueous solution with Pt and Ag counter electrodes. It is demonstrated that 3C-SiC has sufficient potential for CO2 reduction by confirming the band-edge structure. Then, the CO2 reduction is realized by connecting the 3C-SiC photoanode with the counter electrode. As the products of the PEC reaction with an applied bias of 1V (vs counter electrode) to the 3C-SiC photoanode, hydrogen (H2) and carbon monoxide (CO) were analyzed by highly sensitive micro-gas chromatography, by which the time dependence of the gas products can be analyzed. Under light illumination of the 3C-SiC photoanode, CO2 reduction occurred while producing 2.5 and 9 nmol of CO gas with the Pt and Ag counter electrodes, respectively, after the reaction for 3000 s.

Original languageEnglish
Article number04DR05
JournalJapanese Journal of Applied Physics
Volume54
Issue number4
DOIs
Publication statusPublished - Apr 1 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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