Oxygen Vacancy-Rich In-Doped CoO/CoP Heterostructure as an Effective Air Cathode for Rechargeable Zn-Air Batteries

被引:175
作者
Jin, Wei [1 ,2 ]
Chen, Jianping [1 ]
Liu, Bing [1 ]
Hu, Jiugang [3 ]
Wu, Zexing [4 ]
Cai, Weiquan [5 ]
Fu, Gengtao [6 ]
机构
[1] Jiangnan Univ, Sch Chem & Mat Engn, Wuxi 214122, Jiangsu, Peoples R China
[2] Chinese Acad Sci, Inst Proc Engn, 1th Ber Er Tiao Zhongguancun, Beijing 100190, Peoples R China
[3] Cent S Univ, Coll Chem & Chem Engn, 932th South Lushan Rd, Changsha 410083, Hunan, Peoples R China
[4] Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, State Key Lab Base Ecochem Engn, 53 Zhengzhou Rd, Qingdao 266042, Shandong, Peoples R China
[5] Guangzhou Univ, Sch Chem & Chem Engn, 230 Guangzhou Univ City Outer Ring Rd, Guangzhou 510006, Guangdong, Peoples R China
[6] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637459, Singapore
基金
中国国家自然科学基金;
关键词
2D heterostructures; bifunctional electrocatalysts; In-doped CoO; CoP; oxygen vacancies; Zn-air batteries; X-RAY-ABSORPTION; RECENT PROGRESS; REDUCTION; COBALT; EFFICIENT; ELECTROCATALYST; NANOSHEETS; NANOARRAYS; HYDROGEN; CARBIDE;
D O I
10.1002/smll.201904210
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
An efficient and low-cost electrocatalyst for reversible oxygen electrocatalysis is crucial for improving the performance of rechargeable metal-air batteries. Herein, a novel oxygen vacancy-rich 2D porous In-doped CoO/CoP heterostructure (In-CoO/CoP FNS) is designed and developed by a facile free radicals-induced strategy as an effective bifunctional electrocatalyst for rechargeable Zn-air batteries. The electron spin resonance and X-ray absorption near edge spectroscopy provide clear evidence that abundant oxygen vacancies are formed in the interface of In-CoO/CoP FNS. Owing to abundant oxygen vacancies, porous heterostructure, and multiple components, In-CoO/CoP FNS exhibits excellent oxygen reduction reaction activity with a positive half-wave potential of 0.81 V and superior oxygen evolution reaction activity with a low overpotential of 365 mV at 10 mA cm(-2). Moreover, a home-made Zn-air battery with In-CoO/CoP FNS as an air cathode delivers a large power density of 139.4 mW cm(-2), a high energy density of 938 Wh kg(Zn)(-1), and can be steadily cycled over 130 h at 10 mA cm(-2), demonstrating great application potential in rechargeable metal-air batteries.
引用
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页数:9
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  • [11] Recent progress in Co9S8-based materials for hydrogen and oxygen electrocatalysis
    Dong, Dongqi
    Wu, Zexing
    Wang, Jie
    Fu, Gengtao
    Tang, Yawen
    [J]. JOURNAL OF MATERIALS CHEMISTRY A, 2019, 7 (27) : 16068 - 16088
  • [12] Accelerated crystallization of zeolites via hydroxyl free radicals
    Feng, Guodong
    Cheng, Peng
    Yan, Wenfu
    Boronat, Mercedes
    Li, Xu
    Su, Ji-Hu
    Wang, Jianyu
    Li, Yi
    Corma, Avelino
    Xu, Ruren
    Yu, Jihong
    [J]. SCIENCE, 2016, 351 (6278) : 1188 - 1191
  • [13] Superior Oxygen Electrocatalysis on Nickel Indium Thiospinels for Rechargeable Zn-Air Batteries
    Fu, Gengtao
    Wang, Yu
    Tang, Yawen
    Zhou, Kun
    Goodenough, John B.
    Lee, Jong-Min
    [J]. ACS MATERIALS LETTERS, 2019, 1 (01): : 123 - 131
  • [14] Ternary metal sulfides for electrocatalytic energy conversion
    Fu, Gengtao
    Lee, Jong-Min
    [J]. JOURNAL OF MATERIALS CHEMISTRY A, 2019, 7 (16) : 9386 - 9405
  • [15] Exploring Indium-Based Ternary Thiospinel as Conceivable High-Potential Air-Cathode for Rechargeable Zn-Air Batteries
    Fu, Gengtao
    Wang, Jie
    Chen, Yifan
    Liu, Yu
    Tang, Yawen
    Goodenough, John B.
    Lee, Jong-Min
    [J]. ADVANCED ENERGY MATERIALS, 2018, 8 (31)
  • [16] Robust bifunctional oxygen electrocatalyst with a "rigid and flexible" structure for air-cathodes
    Fu, Gengtao
    Jiang, Xian
    Chen, Yifan
    Xu, Lin
    Sun, Dongmei
    Lee, Jong-Min
    Tang, Yawen
    [J]. NPG ASIA MATERIALS, 2018, 10 : 618 - 629
  • [17] Boosting Bifunctional Oxygen Electrocatalysis with 3D Graphene Aerogel-Supported Ni/MnO Particles
    Fu, Gengtao
    Yan, Xiaoxiao
    Chen, Yifan
    Xu, Lin
    Sun, Dongmei
    Lee, Jong-Min
    Tang, Yawen
    [J]. ADVANCED MATERIALS, 2018, 30 (05)
  • [18] Hierarchically mesoporous nickel-iron nitride as a cost-efficient and highly durable electrocatalyst for Zn-air battery
    Fu, Gengtao
    Cui, Zhiming
    Chen, Yifan
    Xu, Lin
    Tang, Yawen
    Goodenough, John B.
    [J]. NANO ENERGY, 2017, 39 : 77 - 85
  • [19] Ni3Fe-N Doped Carbon Sheets as a Bifunctional Electrocatalyst for Air Cathodes
    Fu, Gengtao
    Cui, Zhiming
    Chen, Yifan
    Li, Yutao
    Tang, Yawen
    Goodenough, John B.
    [J]. ADVANCED ENERGY MATERIALS, 2017, 7 (01)
  • [20] Electrically Rechargeable Zinc-Air Batteries: Progress, Challenges, and Perspectives
    Fu, Jing
    Cano, Zachary Paul
    Park, Moon Gyu
    Yu, Aiping
    Fowler, Michael
    Chen, Zhongwei
    [J]. ADVANCED MATERIALS, 2017, 29 (07)