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Metallurgical pyrolysis toward Co@Nitrogen-doped carbon composite for lithium storage 被引量:1
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作者 Yanyan liu Kang Sun +4 位作者 Jianchun Jiang Wenshu Zhou Yuan Shang Chenxia Du baojun li b 《Green Energy & Environment》 SCIE CSCD 2021年第1期91-101,共11页
Elemental state matter-heteroatom-doped carbon composites are of great importance for the development of anode in lithium ion batteries(LIBs).In this article,metal–organic frameworks(MOFs)are adopted as precursor to ... Elemental state matter-heteroatom-doped carbon composites are of great importance for the development of anode in lithium ion batteries(LIBs).In this article,metal–organic frameworks(MOFs)are adopted as precursor to prepare Co composites via metallurgical pyrolysis under controllable conditions.The obtained nitrogen-doped porous carbon-Co nanocomposite possesses core–shell structure(Co@C–N).Co@C–N exhibits the best Li storage performances as anode active matter.After the 200th cycles at current density of 0.2 A g^(-1),a reversible capacity of 870 mAh g^(-1)is retained.A reversible capacity of 275 mAh g^(-1)still maintains with 5 A g^(-1).Co@C–N presents a high reversible capacity with excellent cycle stability.Considering the corresponding experimental and theoretical results,the Co0-based N-doped porous carbon composite is proposed to work as LIBs anode matter.These results provide a new design idea for electrode matters of metallic ion battery,and demonstrate that MOFs pyrolysis is an effective method for the construction of elemental state anode materials. 展开更多
关键词 Co nanoparticles(NPs) Core–shell structure Lithium ion battery anode Metal–organic framework(MOF) Nitrogen-doped carbon
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