Entropy-stabilized metal oxide solid solutions as CO oxidation catalysts with high-temperature stability

Hao Chen, Jie Fu, Pengfei Zhang, Honggen Peng, Carter W. Abney, Kecheng Jie, Xiaoming Liu, Miaofang Chi, Sheng Dai

Research output: Contribution to journalArticlepeer-review

256 Scopus citations

Abstract

This work reports a new strategy toward the design of a new class of supported catalysts with intrinsic high-temperature stabilities through entropy maximization. The use of Pt, Ni, Mg, Cu, Zn, and Co not only enables the active sites to be highly dispersed for high catalytic activity in CO oxidation, but also results in extreme thermal stability (900 °C) owing to the entropy-stabilized behavior inside the metal oxide being able to survive harsh conditions.

Original languageEnglish
Pages (from-to)11129-11133
Number of pages5
JournalJournal of Materials Chemistry A
Volume6
Issue number24
DOIs
StatePublished - 2018

Funding

This work was supported by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, US Department of Energy. Electron microscopy work was supported by the U.S. DOE, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division (MC, XL), and was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory.

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