Journal
NANO LETTERS
Volume 17, Issue 6, Pages 3376-3382Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.6b05301
Keywords
Hierarchical phosphorus hybrid; red phosphorus; barb-shaped graphene nanosheets; in situ; Li-ion battery
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Funding
- National Natural Science Foundation of China [51302210, 51521065]
- Natural Science Fundation of Shaanxi Province [2015JQ5148]
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Nanostructured phosphoruscarbon composites are promising materials for Li-ion and Na-ion battery anodes. A hierarchical phosphorus hybrid, SiC@graphene@P, has been synthesized by the chemical vapor deposition of phosphorus on the surfaces of barbed nanowires, where the barbs are vertically grown graphene nanosheets and the cores are SiC nanowires. A temperature-gradient vaporizationcondensation method has been used to remove the unhybridized phosphorus particles formed by homogeneous nucleation. The vertically grown barb shaped graphene nanosheets and a high concentration of edge carbon atoms induced a fibrous red phosphorus (f-RP) growth with its {001} planes in parallel to {002} planes of nanographene sheets and led to a strong interpenetrated interface interaction between phosphorus and the surfaces of graphene nanosheets. This hybridization has been demonstrated to significantly enhance the electrochemical performances of phosphorus.
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