Copper/cobalt-doped LaMnO3 perovskite oxide as a bifunctional catalyst for rechargeable Li-O2 batteries

Yue Lv; Zhixing Li; Yawei Yu; Jiguang Yin; Kefan Song; Bingqian Yang; Lefan Yuan; Xiulan Hu

doi:10.1016/j.jallcom.2019.06.114

Copper/cobalt-doped LaMnO₃ perovskite oxide as a bifunctional catalyst for rechargeable Li-O₂ batteries

Yue Lv, Zhixing Li, Yawei Yu, Jiguang Yin, Kefan Song, Bingqian Yang, Lefan Yuan, Xiulan Hu

材料科学与工程学院

科研成果: 期刊稿件 › 文章 › 同行评审

61 引用（Scopus）

摘要

Copper/cobalt-doped perovskite oxide LaMn_0.8M_0.2O₃ (M = Cu, Co) composites are synthesized through gel combustion with urea as the chelating agent and fuel. Both LaMn_0.8Cu_0.2O₃ and LaMn_0.8Co_0.2O₃ exhibit better catalytic performances for OER and ORR than LaMnO₃ in alkaline media due to the abundance of oxygen vacancies and Mn⁴⁺ caused by the substitution of different valence elements. When used as a cathode catalyst in Li-O₂ batteries, LaMn_0.8Co_0.2O₃ can perform 91 stable cycles at 100 mA g⁻¹ and the discharge specific capacity can reach up to 9620 mA h g⁻¹ at 500 mA g⁻¹. LaMn_0.8Co_0.2O₃ has a longer cycle life and larger discharge capacity compared to LaMnO₃ and LaMn_0.8Cu_0.2O₃.

源语言	英语
页（从-至）	19-26
页数	8
期刊	Journal of Alloys and Compounds
卷	801
DOI	https://doi.org/10.1016/j.jallcom.2019.06.114
出版状态	已出版 - 15 9月 2019

访问文件

10.1016/j.jallcom.2019.06.114

其它文件与链接

链接到 Scopus 的出版物

引用此

@article{0006e92e3a944482b50dee66659e1c34,

title = "Copper/cobalt-doped LaMnO3 perovskite oxide as a bifunctional catalyst for rechargeable Li-O2 batteries",

abstract = "Copper/cobalt-doped perovskite oxide LaMn0.8M0.2O3 (M = Cu, Co) composites are synthesized through gel combustion with urea as the chelating agent and fuel. Both LaMn0.8Cu0.2O3 and LaMn0.8Co0.2O3 exhibit better catalytic performances for OER and ORR than LaMnO3 in alkaline media due to the abundance of oxygen vacancies and Mn4+ caused by the substitution of different valence elements. When used as a cathode catalyst in Li-O2 batteries, LaMn0.8Co0.2O3 can perform 91 stable cycles at 100 mA g−1 and the discharge specific capacity can reach up to 9620 mA h g−1 at 500 mA g−1. LaMn0.8Co0.2O3 has a longer cycle life and larger discharge capacity compared to LaMnO3 and LaMn0.8Cu0.2O3.",

keywords = "B-site doping, Gel combustion, Li-O batteries, Perovskite oxides",

author = "Yue Lv and Zhixing Li and Yawei Yu and Jiguang Yin and Kefan Song and Bingqian Yang and Lefan Yuan and Xiulan Hu",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = sep,

day = "15",

doi = "10.1016/j.jallcom.2019.06.114",

language = "英语",

volume = "801",

pages = "19--26",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Copper/cobalt-doped LaMnO3 perovskite oxide as a bifunctional catalyst for rechargeable Li-O2 batteries

AU - Lv, Yue

AU - Li, Zhixing

AU - Yu, Yawei

AU - Yin, Jiguang

AU - Song, Kefan

AU - Yang, Bingqian

AU - Yuan, Lefan

AU - Hu, Xiulan

PY - 2019/9/15

Y1 - 2019/9/15

N2 - Copper/cobalt-doped perovskite oxide LaMn0.8M0.2O3 (M = Cu, Co) composites are synthesized through gel combustion with urea as the chelating agent and fuel. Both LaMn0.8Cu0.2O3 and LaMn0.8Co0.2O3 exhibit better catalytic performances for OER and ORR than LaMnO3 in alkaline media due to the abundance of oxygen vacancies and Mn4+ caused by the substitution of different valence elements. When used as a cathode catalyst in Li-O2 batteries, LaMn0.8Co0.2O3 can perform 91 stable cycles at 100 mA g−1 and the discharge specific capacity can reach up to 9620 mA h g−1 at 500 mA g−1. LaMn0.8Co0.2O3 has a longer cycle life and larger discharge capacity compared to LaMnO3 and LaMn0.8Cu0.2O3.

AB - Copper/cobalt-doped perovskite oxide LaMn0.8M0.2O3 (M = Cu, Co) composites are synthesized through gel combustion with urea as the chelating agent and fuel. Both LaMn0.8Cu0.2O3 and LaMn0.8Co0.2O3 exhibit better catalytic performances for OER and ORR than LaMnO3 in alkaline media due to the abundance of oxygen vacancies and Mn4+ caused by the substitution of different valence elements. When used as a cathode catalyst in Li-O2 batteries, LaMn0.8Co0.2O3 can perform 91 stable cycles at 100 mA g−1 and the discharge specific capacity can reach up to 9620 mA h g−1 at 500 mA g−1. LaMn0.8Co0.2O3 has a longer cycle life and larger discharge capacity compared to LaMnO3 and LaMn0.8Cu0.2O3.

KW - B-site doping

KW - Gel combustion

KW - Li-O batteries

KW - Perovskite oxides

UR - http://www.scopus.com/inward/record.url?scp=85067262679&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2019.06.114

DO - 10.1016/j.jallcom.2019.06.114

M3 - 文章

AN - SCOPUS:85067262679

SN - 0925-8388

VL - 801

SP - 19

EP - 26

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Copper/cobalt-doped LaMnO3 perovskite oxide as a bifunctional catalyst for rechargeable Li-O2 batteries

摘要

访问文件

其它文件与链接

指纹

引用此

Copper/cobalt-doped LaMnO₃ perovskite oxide as a bifunctional catalyst for rechargeable Li-O₂ batteries