Advanced High Entropy Perovskite Oxide Electrocatalyst for Oxygen Evolution Reaction

Thi Xuyen Nguyen, Yi Cheng Liao, Chia Chun Lin, Yen Hsun Su, Jyh Ming Ting

研究成果: Article同行評審

52 引文 斯高帕斯(Scopus)

摘要

A new type of lanthanum-based high entropy perovskite oxide (HEPO) electrocatalyst for the oxygen evolution reaction is reported. The B-site lattices in the HEPO consist of five consecutive first-row transition metals, including Cr, Mn, Fe, Co, and Ni. Equimolar and five non-equimolar HEPO electrocatalysts are studied for their OER electrocatalytic performance. In the five non-equimolar HEPOs, the concentration of one of the five transition metals is doubled in individual samples. The performances of all the HEPOs outperform the single perovskite oxides. The optimized La(CrMnFeCo2Ni)O3 HEPO exhibits an outstanding OER overpotential of 325 mV at a current density of 10 mA cm−2 and excellent electrochemical stability after 50 h of testing.

原文English
文章編號2101632
期刊Advanced Functional Materials
31
發行號27
DOIs
出版狀態Published - 2021 7月 2

All Science Journal Classification (ASJC) codes

  • 化學 (全部)
  • 材料科學(全部)
  • 凝聚態物理學

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