Exsolved Fe-Ni nano-particles from Sr2Fe1.3Ni0.2Mo0.5O6 perovskite oxide as a cathode for solid oxide steam electrolysis cells
Exsolved Fe-Ni nano-particles from Sr2Fe1.3Ni0.2Mo0.5O6 perovskite oxide as a cathode for solid oxide steam electrolysis cells
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Sr2Fe1.3Ni0.2Mo0.5O6 钙钛矿氧化物中溶解的 Fe-Ni 纳米颗粒作为固体氧化物蒸汽电解池的阴极
DOI：
10.1039/c6ta06078a
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发表时间：
2016-01-01
影响因子：
11.9
通讯作者：
Chen, F.
中科院分区：
文献类型：
--
作者：
Wang, Y.;Liu, T.;Chen, F.
通过在800℃的湿化H-2 （3 vol% H2O）气氛中原位还原Sr2Fe1.3Ni0.2Mo0.5O6 （SFMNi）材料，制备了一种稳定且具有催化活性的纳米Fe-Ni颗粒阴极。SFMNi- sdc /LCO/LSGM/SDC-LSCF电解电池具有1257 mA cm（-2）的高电解电流密度和525 mL的高产氢率此外，原位生长的纳米结构阴极在恒定电解电流为-300 mA cm（-2）时表现出良好的短期稳定性，这是由于析出颗粒与母体钙钛矿之间的强界面作用。
A stable and catalytically active cathode consisting of homogeneously dispersed nano-socketed Fe-Ni particles has been elegantly fabricated in single-step treatment for solid oxide steam electrolysis cells via the in situ reduction of the Sr2Fe1.3Ni0.2Mo0.5O6 (SFMNi) material in a humidified H-2 (3 vol% H2O) atmosphere at 800 degrees C. The SFMNi-SDC/LCO/LSGM/SDC-LSCF electrolysis cell exhibits a high electrolysis current density of 1257 mA cm(-2) and a high hydrogen production rate of 525 mL cm(-2) h(-1) at an applied voltage of 1.3 V at 850 degrees C. Moreover, the in situ grown nano-structured cathode shows a good short-term stability at a constant electrolysis current of -300 mA cm(-2), resulting from the strong interface between the exsolved particles and the parent perovskite.