Premium
Facile Synthesis of Flower‐Like NiMnO 3 /Ni(OH) 2 Grown on Multifunctional Nickel Foam with Superior Capacitive Performance
Author(s) -
Ge Zhixin,
Wang Xiangzhi,
Huo Yuqiu,
Fang Chaohe
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201800236
Subject(s) - nickel , materials science , capacitance , bimetallic strip , supercapacitor , hydrothermal circulation , current density , chemical engineering , capacitive sensing , substrate (aquarium) , nanotechnology , electrode , metal , metallurgy , chemistry , electrical engineering , physics , oceanography , quantum mechanics , geology , engineering
The flower‐like NiMnO 3 /Ni(OH) 2 growing on multifunctional nickel foam is designed for the first time though a facile, eco‐friendly and straightforward hydrothermal method, in which nickel foam acts as substrate, reductant and the nickel resource. The concentration of bivalent nickel ion plays a key role for the component and capacitive performance of composite. Without outside nickel resource, NiMnO 3 are obtained, and their specific capacitance is 750 F g −1 at the current density of 1 mA cm −2 . Under the high consistence of bivalent nickel ion, the flower‐like NiMnO 3 /Ni(OH) 2 is produced. Its specific capacitance is up to 3800 F g −1 at the current density of 1 mA cm −2 . Such exceptional capacitive performance is attributed to the unique flower‐like structure, excellent contact of active materials with nickel foam substrate and the synergistic effect of constituents. This method can be extended to the synthesis of other bimetallic oxides and other more extensive composites. And the flower‐like NiMnO 3 /Ni(OH) 2 provides a feasible and potential candidate of practical applications of supercapacitor.