Atomically Dispersed CoN4/B, N-C Nanotubes Boost Oxygen Reduction in Rechargeable Zn-Air Batteries
文献类型:期刊论文
作者 | Zhao, Ruopeng3,4; Chen, Jiangyue2; Chen, Zhijing3; Jiang, Xian4; Fu, Gengtao4; Tang, Yawen2; Jin, Wei1; Lee, Jong-Min4; Huang, Shaoming3 |
刊名 | ACS APPLIED ENERGY MATERIALS |
出版日期 | 2020-05-26 |
卷号 | 3期号:5页码:4539-4548 |
ISSN号 | 2574-0962 |
关键词 | b, N-doped Carbon Nanotubes Atomically Dispersed Co Sites Molten Salt Oxygen Reduction Reaction Rechargeable Zn-air Batteries |
DOI | 10.1021/acsaem.0c00215 |
英文摘要 | Minimizing the particle size of transition metals and constructing heteroatom-co-doped carbon with a high surface area are deemed imperative in maximizing the atomic utilization of carbon-based materials. Herein, the atomically dispersed Co sites anchored on interconnected B, N-doped carbon nanotubes (B, N, Co/C nanotubes) are prepared through facile molten-salt-assisted pyrolysis of B/N/Co precursors following chemical etching. The Co single atom is demonstrated to form a Co-N-4 planar configuration by XAFS analysis. The developed B, N, Co/C nanotubes exhibit excellent oxygen reduction reaction (ORR) performance in alkaline medium. They not only display a positive half-wave potential (E-1/2, 0.87 V), surpassing that of commercial Pt/C (0.84 V), but also show an outstanding stability (only 1 mV degrade can be observed after 10,000 cycles) and a high fuel selectivity. These excellent ORR performances derive from the efficient synergy of atomically dispersed Co active sites, unique 3D tubelike assembly structure, large specific surface area, and high graphitization degree. Moreover, the B, N, Co/C nanotubes assisted by RuO2 as an air cathode can enable rechargeable Zn-air batteries with larger power density (125.0 mW cm(-2)), higher specific capacity (746.8 mA h g(Zn)(-1)), and better cycling stability than those of conventional Pt/C + RuO2-based Zn-air batteries. |
WOS关键词 | Metal-free Electrocatalysts ; Single-atom Catalysis ; Doped Porous Carbon ; Efficient ; Sites ; Robust ; Hybrid ; Boron ; Nanoparticles ; Nanosheets |
资助项目 | National Natural Science Foundation of China[51672193] ; National Natural Science Foundation of China[21875112] ; National Natural Science Foundation of China[51920105004] ; Natural Science Foundation of Zhejiang Province[LQ18B030001] ; China Scholarship Council[201908440514] |
WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science |
语种 | 英语 |
出版者 | AMER CHEMICAL SOC |
WOS记录号 | WOS:000537656400055 |
资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Zhejiang Province ; China Scholarship Council |
源URL | [http://ir.ipe.ac.cn/handle/122111/40916] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Fu, Gengtao; Lee, Jong-Min; Huang, Shaoming |
作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 2.Nanjing Normal Univ, Jiangsu Key Lab New Power Batteries, Jiangsu Collaborat Innovat Ctr Biomed Funct Mat, Sch Chem & Mat Sci, Nanjing 210023, Peoples R China 3.Guangdong Univ Technol, Guangzhou Key Lab Low Dimens Mat & Energy Storage, Sch Mat & Energy, Guangzhou 510006, Peoples R China 4.Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637459, Singapore |
推荐引用方式 GB/T 7714 | Zhao, Ruopeng,Chen, Jiangyue,Chen, Zhijing,et al. Atomically Dispersed CoN4/B, N-C Nanotubes Boost Oxygen Reduction in Rechargeable Zn-Air Batteries[J]. ACS APPLIED ENERGY MATERIALS,2020,3(5):4539-4548. |
APA | Zhao, Ruopeng.,Chen, Jiangyue.,Chen, Zhijing.,Jiang, Xian.,Fu, Gengtao.,...&Huang, Shaoming.(2020).Atomically Dispersed CoN4/B, N-C Nanotubes Boost Oxygen Reduction in Rechargeable Zn-Air Batteries.ACS APPLIED ENERGY MATERIALS,3(5),4539-4548. |
MLA | Zhao, Ruopeng,et al."Atomically Dispersed CoN4/B, N-C Nanotubes Boost Oxygen Reduction in Rechargeable Zn-Air Batteries".ACS APPLIED ENERGY MATERIALS 3.5(2020):4539-4548. |
入库方式: OAI收割
来源:过程工程研究所
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