In3+-doped Sr2Fe1.5Mo0.5O6-δ cathode with improved performance for an intermediate-temperature solid oxide fuel cell

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外文摘要：Promoting the oxygen reduction reaction(ORR)is critical for commercialization of intermediate-temperature solid oxide fuel cells(IT-SOFCs),where Sr2Fe1.5Mo0.5O6-δ(SFM)is a promising cathode by working as a mixed ionic and electronic conductor.In this work,doping of In3+greatly increases the oxygen vacancy concentration and the content of adsorbed oxygen species in Sr2Fe1.5Mo0.5-xInxO6-δ(SFMInx),and thus effectively promotes the ORR performance.As a typical example,SFMIn0.1 reduces the polarization resistance(Rp)from 0.089 to 0.046 Ω·cm2 at 800 ℃,which is superior to those doped with other metal elements.In addition,SFMIn0.1 increases the peak power density from 0.92 to 1.47 W-cm-2 at 800 ℃ with humidified H2 as the fuel,indicating that In3+doping at the Mo site can effectively improve the performance of SOFC cathode material.

外文关键词：

solid oxide fuel cellcathodeIn3+dopingoxygen reduction reaction(ORR)Sr2Fe1.5Mo0.5O6-δ

作者：

Yumei Ma、Lijie Zhang、Kang Zhu、Binze Zhang、Ranran Peng、Changrong Xia、Ling Huang

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作者单位：

State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources,College of Chemistry,Xinjiang University,Urumqi 830046,China

Department of Materials Science and Engineering,University of Science and Technology of China,Hefei 230026,China

基金：

Autonomous Region Key Research ProjectGraduate Education Innovation ProjectSupercomputing Center of University of Science and Technology of China(USTC)

项目编号：

2022D02D31XJ2022G046

出版年：

2024

DOI：

10.1007/s12274-023-6338-y

纳米研究(英文版)

CSTPCD

ISSN：

年,卷(期)：2024.17(1)

参考文献量45