Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 5, Issue 44, Pages 22964-22969Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta07971k
Keywords
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Funding
- National Natural Science Foundation of China [21571115, 21671085]
- Natural Science Foundation of Jiangsu Province [BK20161160]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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Multiple heteroatom doping is identified as an effective method to realize superior anode materials for lithium-ion batteries (LIBs). In this study, a novel 4-fold interpenetrated dia MOF was synthesized and characterized and then used as a N,S-containing precursor to fabricate a foam-like CoO@N,S-codoped carbon hybrid composite via thermal treatment. In the composites, the outermost foam-like N, S-codoped carbon matrix can effectively buffer the drastic volume variations, enhance electronic conductivity, and prevent CoO nanoparticles from aggregation and pulverization during discharge/charge processes. Consequently, the novel hybrid nanomaterial exhibited excellent electrochemical properties as an anode material for LIBs. The specific capacity can retain a stable value of about 809mA hg(-1) at a current of 1000 mA g(-1) within 500 cycles. As a proof-of-concept application, introduction of heteroatoms into MOFs can offer a valid method for doping the as-derived hybrid composites and then enhancing their performance as anodes of LIBs.
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