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Hybrid Film from Nickel Oxide and Oxygenated Carbon Nanotube as Flexible Electrodes for Pseudocapacitors
Author(s) -
Wu Zhong,
Li Lin,
Huang Xiaolei,
Zhang Xinbo,
Yan Junmin
Publication year - 2016
Publication title -
chemnanomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.947
H-Index - 32
ISSN - 2199-692X
DOI - 10.1002/cnma.201600039
Subject(s) - pseudocapacitor , materials science , supercapacitor , electrode , non blocking i/o , carbon nanotube , capacitance , nickel oxide , electrochemistry , nanotechnology , nanomaterials , oxide , chemical engineering , nickel , carbon fibers , composite number , composite material , metallurgy , chemistry , catalysis , biochemistry , engineering
Nanomaterials based on nickel oxide (NiO) have been proposed as one of most promising electrode materials for high‐performance supercapacitors. However, their limited electrical conductivity leads to low specific capacitance and unsatisfactory cycling stability. In addition, traditional electrode preparation affects their electrochemical performances. Here, we develop a facile and effective strategy to fabricate hybrid films from NiO and oxygenated carbon nanotubes (OCNT) by filtration. The hybrid film is directly used for electrodes in electrochemical investigations and reveals superior electrochemical properties. By optimizing the ratio of two species; the as‐obtained hybrid film electrode exhibits a high specific capacitance, good rate capability and considerable energy density. The superiority can be contributed to the synergistic effect of two species.