A Raman spectroscopic study of the carbon deposition mechanism on Ni/CGO electrodes during CO/CO2 electrolysis.
A Raman spectroscopic study of the carbon deposition mechanism on Ni/CGO electrodes during CO/CO2 electrolysis.
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DOI：
10.1039/c4cp01503g
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发表时间：
2014-06
期刊：
影响因子：
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通讯作者：
V. Duboviks;R. Maher;M. Kishimoto;L. Cohen;N. Brandon;G. Offer
中科院分区：
文献类型：
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作者：
V. Duboviks;R. Maher;M. Kishimoto;L. Cohen;N. Brandon;G. Offer
多孔Ni/CGO电极的原位和非原位拉曼分析揭示了CO/CO2电解过程中形成的碳的量、位置和类型的差异。结果表明，在电解条件下操作的固体氧化物电池（SOC）的光学原位技术的局限性。靠近电极-电解质界面的碳沉积增加可能是该区域中的高电荷转移电流的结果。证明了CGO中间层对减少燃料电极上的碳形成的积极作用。
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 charge-transfer current in that area. The positive effect of a CGO interlayer on reducing carbon formation on the fuel electrode is demonstrated.