Ni infiltrated Sr2Fe1.5Mo0.5O6-delta-Ce0.8Sm0.2O1.9 electrode for methane assisted steam electrolysis process
Ni infiltrated Sr2Fe1.5Mo0.5O6-delta-Ce0.8Sm0.2O1.9 electrode for methane assisted steam electrolysis process
复制标题
用于甲烷辅助蒸汽电解过程的镍渗透Sr2Fe1.5Mo0.5O6-delta-Ce0.8Sm0.2O1.9电极
DOI：
10.1016/j.elecom.2017.04.018
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发表时间：
2017
影响因子：
5.4
通讯作者：
Chen Fanglin
中科院分区：
文献类型：
--
作者：
Wang Yao;Xu Jiahui;Meng Xinyang;Liu Tong;Chen Fanglin
在固体氧化物电解槽阳极用空气替代甲烷是降低电耗同时生产氢气和高质量合成气的有效途径。在甲烷辅助模式下，热力学性质和能斯特电位表现出一个数量级的所施加的电压降低，以产生可比的电解电流。将Ni催化剂渗透到SFM-SDC阳极中，以改善甲烷辅助水蒸气电解的催化性能。渗Ni后，表面氧交换系数从3.03 × 10− 5有效提高到2.20 × 10− 4cm s− 1，在850 °C和0.5V下的电流密度从-487 mA cm− 2显著提高到-1022 mA cm− 2。
It is an effective way to substitute air to methane in the anode of solid oxide electrolysis cells to reduce the electrical consumption for simultaneously producing H2and high-quality syngas. In the methane assisted mode, the thermodynamic properties and Nernst potential exhibit one order of magnitude reduction of applied voltage to produce comparable electrolysis current. Ni catalysts are infiltrated to the SFM-SDC anode to improve the catalytic properties for methane assisted steam electrolysis. After Ni infiltration, surface oxygen exchange coefficient is effectively accelerated from 3.03 × 10− 5to 2.20 × 10− 4cm s− 1, and the current density is significantly enhanced from − 487 to − 1022 mA cm− 2at 850 °C and 0.5 V.