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Synthesis of Ni 4 Yb(OH) 10 NO 3 ⋅ 3H 2 O Nanosheets for Electrode Materials in Electrochemical Energy Storage
Author(s) -
Duan Huiyu,
Zheng Shasha,
Zhuang Jing,
Wang Tong,
Chen Kai,
Liu Suli,
Chen Changyun,
Pang Huan
Publication year - 2018
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201800992
Subject(s) - nanosheet , materials science , electrochemistry , electrode , supercapacitor , capacitance , energy storage , electrochemical energy storage , transition metal , current density , chemical engineering , nanotechnology , catalysis , chemistry , power (physics) , physics , biochemistry , quantum mechanics , engineering
Transition metal hydroxides have attracted considerable attention as promising electrode materials in electrochemical energy storage. In this work, we first used a facile and green approach to synthesize Ni 4 Yb(OH) 10 NO 3 ⋅ 3H 2 O nanosheets, which are thin‐layer hexagonal structures. Additionally, this method can be developed to synthesize other lanthanide‐doped Ni(OH) 2 materials. When used as electrode materials, these nanosheets exhibited excellent electrochemical energy storage performance and good cycling stability. For example, the Ni 4 Yb(OH) 10 NO 3 ⋅ 3H 2 O nanosheet electrode showed a specific capacitance of 1482.1 F g −1 at 1 A g −1 , while maintaining great cycling stability (a capacity retention of 71.8 % after 2000 cycles at a current density of 1 A g −1 ).