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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
Source PublicationNANOSCALE
ISSN2040-3364
Volume10Issue:11Pages:5246-5253
AbstractVanadium 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.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1039/c7nr08985f
Indexed BySCI
Language英语
WOS KeywordNITRIDE SUPERCAPACITORS ; ELECTRODE MATERIALS ; OXYGEN REDUCTION ; FACILE SYNTHESIS ; PERFORMANCE ; CARBON ; STORAGE ; VN ; NANOSHEETS ; COMPOSITE
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
Funding OrganizationChina National Major Science and Technology Program for Water Pollution Control and Treatment(2017ZX07402003)
WOS IDWOS:000428787200028
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24164
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.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
Recommended Citation
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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