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Ge Nanoparticles in MXene Sheets: One-step Synthesis and Highly Improved Electrochemical Property in Lithium-ion Batteries
Guo Si-Lin1,2; Kang Shuai1,2; Lu Wen-Qiang1,2
2020-01-20
摘要Ge nanoparticles were synthesized uniformly on MXene sheets via a one-step chemical solution method. Morphology of Ge/MXene was characterized by SEM and TEM. Formation process and optimized synthesis condition was analyzed carefully. Ge/MXene was used as anode for lithium-ion batteries. Their electrochemical performances, including capacity, rate and cycling stability, were tested and evaluated. Ge/MXene exhibited a greatly improved capacity of 1200 mAh/g during the first hundred cycles at 0.2C with a loading of 1 mg/cm(2). A capacity of 450 mAh/g at a higher loading of 2 mg/cm(2) was obtained after 100 cycles. The excellence in electrochemistry is attributed to the high conductivity of MXene and its accommodable interlayer space.
关键词MXene Ge nanoparticles lithium-ion batteries anode materials
DOI10.15541/jim20190161
发表期刊JOURNAL OF INORGANIC MATERIALS
ISSN1000-324X
卷号35期号:1页码:105-111
通讯作者Guo Si-Lin(guosilin@cigit.ac.cn)
收录类别SCI
WOS记录号WOS:000505199800017
语种英语