(La1-xSrx)(0.98)MnO3 perovskite with A-site deficiencies toward oxygen reduction reaction in aluminum-air batteries

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	(La1-xSrx)(0.98)MnO3 perovskite with A-site deficiencies toward oxygen reduction reaction in aluminum-air batteries
	Li, Shihua; Xue, Yejian; Miao, He; Sun, Shanshan; Wang, Qin; Liu, Zhaoping
刊名	JOURNAL OF POWER SOURCES
	2017
卷号	342 页码:192-201
ISSN号	0378-7753
英文摘要	The strontium doped Mn-based perovskites have been proposed as one of the best oxygen reduction reaction catalysts (ORRCs) to substitute the noble metal. However, few studies have investigated the catalytic activities of LSM with the A-site deficiencies. Here, the (La1-xSrx)(0.98)MnO3 (LSM) perovskites with A-site deficiencies are prepared by a modified solid-liquid method. The structure, morphology, valence state and oxygen adsorption behaviors of these LSM samples are characterized, and their catalytic activities toward ORR are studied by the rotating ring-disk electrode (RRDE) and aluminum-air battery technologies. The results show that the appropriate doping with Sr and introducing A-site stoichiometry can effectively tailor the Mn valence and increase the oxygen adsorption capacity of LSM. Among all the LSM samples in this work, the (La0.7Sr0.3)(0.98)MnO3 perovskite composited with 50% carbon (50%LSM30) exhibits the best ORR catalytic activity due to the excellent oxygen adsorption capacity. Also, this catalyst has much higher durability than that of commercial 20%Pt/C. Moreover, the maximum power density of the aluminum-air battery using 50%LSM30 as the ORRC can reach 191.3 mW cm(-2). Our work indicates that the LSM/C composite catalysts with A-site deficiencies can be used as a promising ORRC in the metal-air batteries. (C) 2016 Elsevier B.V. All rights reserved.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/13969]
专题	2017专题
推荐引用方式 GB/T 7714	Li, Shihua,Xue, Yejian,Miao, He,et al. (La1-xSrx)(0.98)MnO3 perovskite with A-site deficiencies toward oxygen reduction reaction in aluminum-air batteries[J]. JOURNAL OF POWER SOURCES,2017,342:192-201.
APA	Li, Shihua,Xue, Yejian,Miao, He,Sun, Shanshan,Wang, Qin,&Liu, Zhaoping.(2017).(La1-xSrx)(0.98)MnO3 perovskite with A-site deficiencies toward oxygen reduction reaction in aluminum-air batteries.JOURNAL OF POWER SOURCES,342,192-201.
MLA	Li, Shihua,et al."(La1-xSrx)(0.98)MnO3 perovskite with A-site deficiencies toward oxygen reduction reaction in aluminum-air batteries".JOURNAL OF POWER SOURCES 342(2017):192-201.