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Vanadium Nitride/Porous Carbon Composites on Ni Foam for High‐Performance Supercapacitance
Author(s) -
Wang Cong,
Liang Xizhuang,
Wang Zeyan,
Liu Yuanyuan,
Wang Peng,
Qin Xiaoyan,
Zhang Xiaoyang,
Dai Ying,
Li Yingjie,
Huang Baibiao
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201902853
Subject(s) - vanadium nitride , materials science , nitride , porosity , microporous material , composite material , electrode , capacitance , supercapacitor , vanadium , carbon fibers , carbon nanofoam , metallurgy , composite number , chemistry , layer (electronics)
A template‐free method for preparing vanadium nitride/carbon (VN/C) composites on Ni foam is developed by combining hydrothermal and nitridation methods. The VN/C composites on the Ni foam can be used as an electrode without any further treatment, and is found to be a good capacitance material. The highest specific capacitance of 386.6 F g −1 is obtained when the scan rate at 2 mV s −1 , and the electrode demonstrates good cycling stability, owing to the synergistic integration of vanadium nitride with porous carbon, as well as the high surface area and conductive network provided by the microporous three‐dimensional Ni foam structure.