Journal
CHEMISTRY OF MATERIALS
Volume 20, Issue 20, Pages 6319-6324Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cm800632f
Keywords
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Funding
- Korea Science and Engineering Foundation (KOSEF)
- Research Center for Energy Conversion and Storage at Seoul National University [R11-2002-102-02001-0]
- National Research Foundation of Korea [R11-2002-102-02001-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Tetragonal zinc diphosphide (ZnP2) and its nanocornposite (ZnP2/C) were prepared using commercially available amorphous red phosphorus and zinc powder by high energy mechanical milling (HEMM) at ambient temperature and pressure. The ZnP2/C nanocomposite was composed of uniformly distributed, nanosized, ZnP2 crystallites in the amorphous carbon matrix, as confirmed with X-ray diffraction (XRD) and high resolution transmission electron microscope (HRTEM) analyses. The electrochemical reaction mechanism of the ZnP2/C nanocomposite with lithium was investigated during the first cycle. Electrochemical tests showed that the ZnP2/C nanocomposite exhibited enhanced electrochemical reversibility, good cyclability, and high-rate capability when cycled between 0.55 and 2 V.
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