A Raman spectroscopic study of the carbon deposition mechanism on Ni/CGO electrodes during CO/CO2 electrolysis

作者:Duboviks V*; Maher R C; Kishimoto M; Cohen L F; Brandon N P; Offer G J
来源:Physical Chemistry Chemical Physics, 2014, 16(26): 13063-13068.
DOI:10.1039/c4cp01503g

摘要

In situ and ex situ Raman analyses of porous Ni/CGO electrodes reveal differences in the amount, location and type of carbon formed during CO/CO2 electrolysis. The results demonstrate the limitations of optical in situ techniques applied to Solid Oxide Cells (SOCs) operated in electrolysis conditions. Increased carbon deposition close to the electrode-electrolyte interface is likely to be the result of high chargetransfer current in that area. The positive effect of a CGO interlayer on reducing carbon formation on the fuel electrode is demonstrated.

  • 出版日期2014