In situ self-sacrificed template synthesis of vanadium nitride/nitrogen-doped graphene nanocomposites for electrochemical capacitors
Liu, Hong-hui1,2,3; Zhang, Hong-ling2,3; Xu, Hong-bin2,3; Lou, Tai-ping1; Sui, Zhi-tong1; Zhang, Yi1,2,3
2018-03-21
发表期刊NANOSCALE
ISSN2040-3364
卷号10期号:11页码:5246-5253
摘要Vanadium nitride and graphene have been widely used as pseudo-capacitive and electric double-layer capacitor electrode materials for electrochemical capacitors, respectively. However, the poor cycling stability of vanadium nitride and the low capacitance of graphene impeded their practical applications. Herein, we demonstrated an in situ self-sacrificed template method for the synthesis of vanadium nitride/nitrogen-doped graphene (VN/NGr) nanocomposites by the pyrolysis of a mixture of dicyandiamide, glucose, and NH4VO3. Vanadium nitride nanoparticles of the size in the range of 2 to 7 nm were uniformly embedded into the nitrogen-doped graphene skeleton. Furthermore, the VN/NGr nano composites with a high specific surface area and pore volume showed a high specific capacitance of 255 F g(-1) at 10 mV s(-1), and an excellent cycling stability (94% capacitance retention after 2000 cycles). The excellent capacitive properties were ascribed to the excellent conductivity of nitrogen-doped graphene, high surface area, high pore volume, and the synergistic effect between vanadium nitride and nitrogen-doped graphene.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1039/c7nr08985f
收录类别SCI
语种英语
关键词[WOS]NITRIDE SUPERCAPACITORS ; ELECTRODE MATERIALS ; OXYGEN REDUCTION ; FACILE SYNTHESIS ; PERFORMANCE ; CARBON ; STORAGE ; VN ; NANOSHEETS ; COMPOSITE
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
项目资助者China National Major Science and Technology Program for Water Pollution Control and Treatment(2017ZX07402003)
WOS记录号WOS:000428787200028
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24164
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromettal Cleaner Prod Technol, Beijing 100190, Peoples R China
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GB/T 7714
Liu, Hong-hui,Zhang, Hong-ling,Xu, Hong-bin,et al. In situ self-sacrificed template synthesis of vanadium nitride/nitrogen-doped graphene nanocomposites for electrochemical capacitors[J]. NANOSCALE,2018,10(11):5246-5253.
APA Liu, Hong-hui,Zhang, Hong-ling,Xu, Hong-bin,Lou, Tai-ping,Sui, Zhi-tong,&Zhang, Yi.(2018).In situ self-sacrificed template synthesis of vanadium nitride/nitrogen-doped graphene nanocomposites for electrochemical capacitors.NANOSCALE,10(11),5246-5253.
MLA Liu, Hong-hui,et al."In situ self-sacrificed template synthesis of vanadium nitride/nitrogen-doped graphene nanocomposites for electrochemical capacitors".NANOSCALE 10.11(2018):5246-5253.
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