具有增强的耐铬性的LaCrO包覆的LaSrCoFeO核壳结构阴极用于中温固体氧化物燃料电池。
LaCrO-Coated LaSrCoFeO Core-Shell Structured Cathode with Enhanced Cr Tolerance for Intermediate-Temperature Solid Oxide Fuel Cells.
作者信息
Qiu Peng, Yang Xin, Zou Lu, Zhu Tianyu, Yuan Zhihao, Jia Lichao, Li Jian, Chen Fanglin
机构信息
Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor & Green Chemical Technology, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430073, China.
School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
出版信息
ACS Appl Mater Interfaces. 2020 Jul 1;12(26):29133-29142. doi: 10.1021/acsami.0c01962. Epub 2020 Jun 22.
LaSrCoFeO (LSCF) is a common cathode material for intermediate-temperature solid oxide fuel cells because of its excellent oxygen reduction reaction catalytic activity. However, the Cr-poisoning effect is a severe issue, causing electrochemical performance degradation. For the development of a LSCF-based cathode with excellent Cr tolerance, a LaCrO-coated LSCF core-shell structured (LCr@LSCF) cathode was prepared via the solution infiltration method. After the cathode was coated with a LCr shell, the long-term stability and Cr tolerance were obviously improved, at the price of sacrificing some electrochemical performance. The development of a LCr@LSCF cathode with eye-catching Cr tolerance is of great significance to the commercialization of LSCF.
镧锶钴铁氧体（LSCF）因其优异的氧还原反应催化活性，是中温固体氧化物燃料电池常用的阴极材料。然而，铬中毒效应是一个严重问题，会导致电化学性能下降。为了开发具有优异耐铬性的LSCF基阴极，通过溶液浸渍法制备了LaCrO包覆的LSCF核壳结构（LCr@LSCF）阴极。在阴极包覆LCr壳层后，长期稳定性和耐铬性明显提高，但牺牲了一些电化学性能。开发具有显著耐铬性的LCr@LSCF阴极对LSCF的商业化具有重要意义。
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