NIMTE OpenIR  > 2018专题
A new family of Mn-based perovskite (La1-xYxMnO3) with improved oxygen electrocatalytic activity for metal-air batteries
Miao, He; Wang, Zhouhang; Wang, Qin; Sun, Shanshan; Xue, Yejian; Wang, Fu; Zhao, Jiapei; Liu, Zhaoping; Yuan, Jinliang
2018
Source PublicationENERGY
Volume154Pages:561-570
AbstractThe sluggish reaction kinetics occurring at the cathodes limits the performances of the metal-air batteries. Therefore, developing the oxygen electrocatalysts which can accelerate oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is a critical issue. Mn-based perovskite has drawn extensive interests though their ORR and OER catalytic activity still needs to be improved. In this work, a new family of Mn-based perovskite (La1-xYxMnO3, LYM) is developed which demonstrates an improved ORR and OER catalytic activity compared with the representative strontium-doped Mn-based perovskite (LSM). For La0.9Y0.1MnO3 (LYM-10), the onset potential and half-wave potential during ORR can reach 0.909 V and 0.750 V (vs. RHE), respectively, which are more positive than those of LSM reported in most of the recent reports. Furthermore, LYM-10 also shows a better OER catalytic activity than La0.7Sr0.3MnO3 (LSM-30). In addition to its good bifunctional property, LYM-10 also achieves the superior durability compared with Pt/C during ORR, and the current retention of LYM-10 is as high as 97.3% after 43000 s. Using LYM-10 as the cathode catalyst, the alunimum-air battery can reach the maximum power density of 266 mW/cm(2), and zinc-air battery can obtain low charge-discharge overpotential and the good cycling stability. (C) 2018 Elsevier Ltd. All rights reserved.
KeywordReduction Reaction Catalysts Oxide Fuel-cell Charge-transfer Evolution Reactions Highly-efficient Alkaline Media Doped Carbon Performance Oxidation Graphene
Subject AreaMaterials Science ; Physics
Language英语
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/17349
Collection2018专题
Recommended Citation
GB/T 7714
Miao, He,Wang, Zhouhang,Wang, Qin,et al. A new family of Mn-based perovskite (La1-xYxMnO3) with improved oxygen electrocatalytic activity for metal-air batteries[J]. ENERGY,2018,154:561-570.
APA Miao, He.,Wang, Zhouhang.,Wang, Qin.,Sun, Shanshan.,Xue, Yejian.,...&Yuan, Jinliang.(2018).A new family of Mn-based perovskite (La1-xYxMnO3) with improved oxygen electrocatalytic activity for metal-air batteries.ENERGY,154,561-570.
MLA Miao, He,et al."A new family of Mn-based perovskite (La1-xYxMnO3) with improved oxygen electrocatalytic activity for metal-air batteries".ENERGY 154(2018):561-570.
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