| A hybrid material of vanadium nitride and nitrogen-doped graphene for lithium storage | |
Zhang, Kejun2; Wang, Haibo2; He, Xiaoqing1; Liu, Zhihong2; Wang, Li2,3; Gu, Lin1; Xu, Hongxia2 ; Han, Pengxian2; Dong, Shanmu2; Zhang, Chuanjian2; Yao, Jianhua2; Cui, Guanglei2; Chen, Liquan1
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| 2011 | |
| 发表期刊 | JOURNAL OF MATERIALS CHEMISTRY
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| 卷号 | 21期号:32页码:11916-11922 |
| 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. |
| 文章类型 | Article |
| 学科领域 | 仿生能源系统 |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| DOI | 10.1039/c1jm11710f |
| 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研究方向 | Chemistry ; Materials Science |
| WOS类目 | Chemistry, Physical ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000293504500033 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qibebt.ac.cn/handle/337004/998 |
| 专题 | 仿生与固态能源系统研究组 |
| 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. |
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