Understanding of CO 2 Electrochemical Reduction Reaction Process via High Temperature Solid Oxide Electrolysers
Understanding of CO 2 Electrochemical Reduction Reaction Process via High Temperature Solid Oxide Electrolysers
复制标题
通过高温固体氧化物电解槽了解CO 2 电化学还原反应过程
DOI:
10.1149/06801.3535ecst
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Yue X
中科院分区:
文献类型:
--
作者:
Yue X
The CO2 electrochemical reduction via SOEC was studied for a range of cathode materials in various operational conditions. The influences of the fuel gas composition, operating potential and temperature on cathode behavior are discussed and compared on different cathodes. The dissociative adsorption and surface diffusion of active species from CO2 reduction reaction was found to contribute dominantly to the LSCM-based cathode working in CO2-CO mixtures. Efforts were also made to obtain a high performance and durable cathode for high temperature CO2 electrolyser by employing a gradient LSCM-YSZ cathode and by adopting wet impregnation in cathode preparation. The latter was to more effective in enhancing the cathode electro-catalytic activity. A competitive cathode to Ni-YSZ cermet was fabricated by infiltrating 0.5 wt% Pd and GDC into porous LSCM and YSZ layers.