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Browsing by Author "Li, Haipeng"

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Electrochemical performance of carbon-encapsulated Fe3O4 nanoparticles in lithium-ion batteries: morphology and particle size effects

Zhang, Yongguang; Li, Yue; Li, Haipeng; Zhao, Yan; Yin, Fuxing; Bakenov, Zhumabay (Electrochimica Acta, 2016-10-20)

Abstract Carbon-encapsulated Fe3O4 nanoparticles (Fe3O4@C) with varied microstructures were produced by controlling the relative concentrations of glucose and iron nitrate hydrate in a hydrothermal process, followed by ...
Enhanced cycle performance of Li/S battery with the reduced graphene oxide/activated carbon functional interlayer

Li, Haipeng; Sun, Liancheng; Zhang, Yongguang; Tan, Taizhe; Wang, Gongkai; Bakenov, Zhumabay (Journal of Energy Chemistry, 2017-11-01)

Abstract The high-energy lithium/sulfur (Li/S) battery has become a very popular topic of research in recent years due to its high theoretical capacity of 1672 mAh/g. However, the polysulfide shuttle effect remains of great ...
Fabrication and Properties of Carbon- Encapsulated Cobalt Nanoparticles over NaCl by CVD

Li, Haipeng; Li, Yue; Zhang, Yongguang; Liang, Chunyong; Wang, Hongshui; Li, Baoe; Adair, Desmond; Bakenov, Zhumabay (Nanoscale Research Letters, 2016-09-27)

Carbon-encapsulated cobalt (Co@C) nanoparticles, with a tunable structure, were synthesized by chemical vapor deposition using Co nanoparticles as the catalyst and supported on a water-soluble substrate (sodium chloride), ...
Facile Synthesis of ZnO Nanoparticles on Nitrogen-Doped Carbon Nanotubes as High-Performance Anode Material for Lithium-Ion Batteries

Li, Haipeng; Liu, Zhengjun; Yang, Shuang; Zhao, Yan; Feng, Yuting; Bakenov, Zhumabay; Zhang, Chengwei; Yin, Fuxing (Materials, 2017)

ZnO/nitrogen-doped carbon nanotube (ZnO/NCNT) composite, prepared though a simple one-step sol-gel synthetic technique, has been explored for the first time as an anode material. The as-prepared ZnO/NCNT nanocomposite ...
In situ sol-gel synthesis of ultrafine ZnO nanocrystals anchored on graphene as anode material for lithium-ion batteries

Li, Haipeng; Wei, Yaqiong; Zhang, Yongguang; Zhang, Chengwei; Wang, Gongkai; Zhao, Yan; Yin, Fuxing; Bakenov, Zhumabay (Ceramics International, 2016-08-01)

Abstract Ultrafine ZnO nanocrystals anchored on graphene were synthesized by a facile and highly efficient in situ sol-gel method. Uniform ZnO nanocrystals with an average size of 9.3nm were well dispersed on graphene ...
Simple One-Pot Synthesis of Hexagonal ZnO Nanoplates as Anode Material for Lithium-Ion Batteries

Li, Haipeng; Wei, Yaqiong; Zhao, Yan; Zhang, Yongguang; Yin, Fuxing; Zhang, Chengwei; Bakenov, Zhumabay (Copyright © 2016 Haipeng Li et al., 2015-12-15)

Hexagonal ZnO nanoplates were synthesized via simple one-pot hydrothermal reaction of Zn(CH3COO)2 and CO(NH2)2. XRD, SEM, and HRTEM were used to investigate the composition and microstructure of the material. Together with ...
Synthesis of hierarchical MoS2 microspheres composed of nanosheets assembled via facile hydrothermal method as anode material for lithium-ion batteries

Zhang, Yongguang; Li, Yue; Li, Haipeng; Yin, Fuxing; Zhao, Yan; Bakenov, Zhumabay (Springer Science+Business Media Dordrecht 2016. J Nanopart Res (2016) 18:63, 2016-02-24)

A hierarchical MoS2 architecture composed of nanosheet-assembled microspheres with an expanded interplanar spacing of the (002) planes was successfully prepared via a simple hydrothermal reaction. Electron microscopy ...