期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 538, 期 -, 页码 187-198出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2018.11.093
关键词
Nickel phosphide; Carbon shell; Submicrospheres; Lithium-ion battery; Sodium-ion battery
资金
- National Natural Science Foundation of China [51872226]
- Industrial Innovation Chain of Key Research and Development Project of Shaanxi Province [2017ZDCXL-GY-08-01]
- Key Science and Technology Innovation Team Project of Natural Science Foundation of Shaanxi Province, China [2017KCT-01]
- Natural Science Foundation of Shaanxi Province [2018, 22004]
- Foundation of the Education Committee of Shaanxi Province [18JK0798]
- Northwest University Crossdiscipline Fund for Postgraduate Students [YZZ17103]
A hybrid based on nickel phosphide nanoparticle assembled submicrospheres coated with a glucose-derived carbon shell is synthesized from Ni-glycerate precursors through a carbon coating route and a subsequent calcination-phosphatization approach. Characterization results indicate that the synthesized submicrospheres have a diameter of similar to 500 nm and are composed of nanoparticles as subunits with sizes ranging from 30 to 40 nm. Each sphere and its subunits are coated by a continuous carbon coating shell. The electrochemical performance of the material as an anode for reversible energy storage is investigated and evaluated. A comparative study of the lithium/sodium storage properties between the hybrid and pure nickel phosphide is carried out. The electrochemical results demonstrate that the hybrid fabricated electrode is a highly attractive anode for lithium- and sodium-ion batteries, exhibiting much better lithium/sodium storage properties compared to the nickel phosphide submicrospheres of the same construction. The reasons for the enhanced energy storage performance of the submicrospheres are explored by a series of comparison experiments based on morphology, structure, electrical conductivity, and kinetic property. (C) 2018 Elsevier Inc. All rights reserved.
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