气候变化领域集成服务门户(CCPortal): Control of transition metal-oxygen bond strength boosts the redox ex-solution in a perovskite oxide surface

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DOI	10.1039/d0ee01308k
	Control of transition metal-oxygen bond strength boosts the redox ex-solution in a perovskite oxide surface
	Kim K.; Koo B.; Jo Y.-R.; Lee S.; Kim J.K.; Kim B.-J.; Jung W.; Han J.W.
发表日期	2020
ISSN	1754-5692
起始页码	3404
结束页码	3411
卷号	13 期号:10
英文摘要	We demonstrate theoretically and experimentally that engineering of cation-oxygen bond strength in a perovskite structure can control redox ex-solution of B-site metals and thus the formation of metal nanoparticles at the oxide surface upon high-temperature reduction. In particular, we show that large isovalent doping significantly promotes the B-site ex-solution via tuning of the cation-oxygen bond strength, leading to high catalytic activity of CO oxidation. This method to promote ex-solution can be readily applied to various heterogeneous catalysts. © The Royal Society of Chemistry.
语种	英语
scopus关键词	Bond strength (materials); Catalyst activity; Catalytic oxidation; High temperature engineering; Oxygen; Perovskite; Positive ions; Transition metals; Cation oxygen bonds; Co oxidation; Heterogeneous catalyst; High temperature reduction; Metal-oxygen bonds; Oxide surface; Perovskite oxides; Perovskite structures; Metal nanoparticles
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162560
作者单位	Department of Chemical Engineering, Pohang University Science and Technology (POSTECH), Pohang Gyeongbuk, 37673, South Korea; Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea; School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, 61005, South Korea
推荐引用方式 GB/T 7714	Kim K.,Koo B.,Jo Y.-R.,et al. Control of transition metal-oxygen bond strength boosts the redox ex-solution in a perovskite oxide surface[J],2020,13(10).
APA	Kim K..,Koo B..,Jo Y.-R..,Lee S..,Kim J.K..,...&Han J.W..(2020).Control of transition metal-oxygen bond strength boosts the redox ex-solution in a perovskite oxide surface.Energy and Environmental Science,13(10).
MLA	Kim K.,et al."Control of transition metal-oxygen bond strength boosts the redox ex-solution in a perovskite oxide surface".Energy and Environmental Science 13.10(2020).