Ni infiltrated Sr2Fe1.5Mo0.5O6-delta-Ce0.8Sm0.2O1.9 electrode for methane assisted steam electrolysis process

作者：Wang, Yao; Xu, Jiahui; Meng, Xinyang; Liu, Tong^*; Chen, Fanglin^*

来源：Electrochemistry Communications, 2017, 79: 63-67.

DOI：10.1016/j.elecom.2017.04.018

• Steam electrolysis
• Ni infiltration
• Methane
• Molybdenum doped strontium ferrite

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 H-2 and 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 x 10(-5) to 2.20 x 10(-4) cm s(-1), and the current density is significantly enhanced from -487 to -1022 mA cm(-2) at 850 degrees C and 0.5 V.

• 出版日期2017-6
• 单位武汉大学