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Influence of the Concentration of Electrolyte on the Capacitive Properties of Vanadium Nitride Electrode 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
Source PublicationJOURNAL OF THE ELECTROCHEMICAL SOCIETY
ISSN0013-4651
Volume165Issue:2Pages:A97-A103
AbstractCyclic voltammetry and electrochemical impedance spectroscopy were applied to investigate the effect of the concentration of KOH solution on the capacitive performance of the nanostructured vanadium nitride. The results reveal that the required overpotential for the transformation of V2+ to V3+ in concentrated KOH solutions is much lower than that in diluted solutions, indicating that concentrated solutions are kinetically more favorable than diluted solutions. Additionally, a marked decrease in charge transfer resistance and electrolyte series resistance were observed as the concentration of KOH solution increased. Thus, the specific capacitance and the rate capability of the vanadium nitride electrode are improved with increasing of the concentration of KOH solution. Moreover, the specific capacitance of the vanadium nitride material in 6 M KOH solution is the highest, and the vanadium nitride material exhibits great long term stability in KOH solution. (C) 2018 The Electrochemical Society.
DOI10.1149/2.0461802jes
Language英语
WOS KeywordCHARGE STORAGE ; ENERGY-STORAGE ; TIO2 ANATASE ; THIN-FILMS ; SUPERCAPACITORS ; PERFORMANCE ; SURFACE ; PSEUDOCAPACITANCE ; BEHAVIOR ; OXIDE
Funding ProjectChina National Major Science and Technology Program for Water Pollution Control and Treatment[2017ZX07402003]
WOS Research AreaElectrochemistry ; Materials Science
WOS SubjectElectrochemistry ; Materials Science, Coatings & Films
Funding OrganizationChina National Major Science and Technology Program for Water Pollution Control and Treatment
WOS IDWOS:000431786800013
PublisherELECTROCHEMICAL SOC INC
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24612
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Hong-ling
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 Hydrometall Cleaner Prod Technol, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Liu, Hong-hui,Zhang, Hong-ling,Xu, Hong-bin,et al. Influence of the Concentration of Electrolyte on the Capacitive Properties of Vanadium Nitride Electrode for Electrochemical Capacitors[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2018,165(2):A97-A103.
APA Liu, Hong-hui,Zhang, Hong-ling,Xu, Hong-bin,Lou, Tai-ping,Sui, Zhi-tong,&Zhang, Yi.(2018).Influence of the Concentration of Electrolyte on the Capacitive Properties of Vanadium Nitride Electrode for Electrochemical Capacitors.JOURNAL OF THE ELECTROCHEMICAL SOCIETY,165(2),A97-A103.
MLA Liu, Hong-hui,et al."Influence of the Concentration of Electrolyte on the Capacitive Properties of Vanadium Nitride Electrode for Electrochemical Capacitors".JOURNAL OF THE ELECTROCHEMICAL SOCIETY 165.2(2018):A97-A103.
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