A hybrid material of vanadium nitride and nitrogen-doped graphene for lithium storage

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 仿生能源与储能系统团队

	A hybrid material of vanadium nitride and nitrogen-doped graphene for lithium storage
	Zhang, Kejun 2; Wang, Haibo 2; He, Xiaoqing 1; Liu, Zhihong 2; Wang, Li 2,3; Gu, Lin 1; Xu, Hongxia 2; Han, Pengxian 2; Dong, Shanmu 2; Zhang, Chuanjian 2
刊名	JOURNAL OF MATERIALS CHEMISTRY
	2011
卷号	21 期号:32 页码:11916-11922
英文摘要	Vanadium nitride and nitrogen-doped graphene nanosheet (G) hybrid materials were prepared by a facile sol-gel method combined with a thermal treatment at 800 degrees C under ammonia atmosphere. It was found that VN nanoparticles adhered to the surface of nitrogen-doped graphene nanosheets and/or were embedded in the graphene layers of the hybrid material (VN-G). This nanostructured material promises an efficient electronic and ionic conducting network, which exhibits dramatically increased specific capacities after rate capability test in comparison to the original value under the same current density. The most probable explanations for these distinct characteristics are deduced from observations by advanced transmission electron microscopy together with X-ray diffraction and electron energy-loss spectroscopy, which illustrate a gradual activation of nitride during lithiation/delithiation processes, owing to slow kinetics of VN reaction with lithium. The electrochemical results demonstrate that the weight ratio of VN to G has a significant effect on the performance and related kinetics of the materials.
学科主题	仿生能源系统
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Materials Science
关键词[WOS]	ION BATTERIES ; SECONDARY BATTERIES ; NEGATIVE-ELECTRODE ; ANODE MATERIAL ; COMPOSITE ; CAPACITY ; OXIDE ; ELECTROCHEMISTRY ; NANOSTRUCTURES ; TEMPERATURE
收录类别	SCI
语种	英语
WOS记录号	WOS:000293504500033
公开日期	2012-06-12
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn:8080/handle/337004/998]
专题	青岛生物能源与过程研究所_仿生能源与储能系统团队
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 3.Ocean Univ China, Qingdao 266003, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Kejun,Wang, Haibo,He, Xiaoqing,et al. A hybrid material of vanadium nitride and nitrogen-doped graphene for lithium storage[J]. JOURNAL OF MATERIALS CHEMISTRY,2011,21(32):11916-11922.
APA	Zhang, Kejun.,Wang, Haibo.,He, Xiaoqing.,Liu, Zhihong.,Wang, Li.,...&Chen, Liquan.(2011).A hybrid material of vanadium nitride and nitrogen-doped graphene for lithium storage.JOURNAL OF MATERIALS CHEMISTRY,21(32),11916-11922.
MLA	Zhang, Kejun,et al."A hybrid material of vanadium nitride and nitrogen-doped graphene for lithium storage".JOURNAL OF MATERIALS CHEMISTRY 21.32(2011):11916-11922.