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Hierarchical Porous NiO/β‐NiMoO 4 Heterostructure as Superior Anode Material for Lithium Storage
Author(s) -
Wang Zhijian,
Zhang Shilin,
Zeng Hai,
Zhao Haimin,
Sun Wei,
Jiang Meng,
Feng Chuanqi,
Liu Jianwen,
Zhou Tengfei,
Zheng Yang,
Guo Zaiping
Publication year - 2018
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201800220
Subject(s) - non blocking i/o , anode , materials science , heterojunction , lithium (medication) , electrochemistry , chemical engineering , porosity , ternary operation , transition metal , nanotechnology , catalysis , optoelectronics , electrode , chemistry , composite material , computer science , medicine , biochemistry , engineering , programming language , endocrinology
Ternary transition metal oxides (TTMOs) have attracted considerable attention for rechargeable batteries because of their fascinating properties. However, the unsatisfactory electrochemical performance originating from the poor intrinsic electronic conductivity and inferior structural stability impedes their practical applications. Here, the novel hierarchical porous NiO/β‐NiMoO 4 heterostructure is fabricated, and exhibits high reversible capacity, superior rate capability, and excellent cycling stability in Li‐ion batteries (LIBs), which is much better than the corresponding single‐phase NiMoO 4 and NiO materials. The significantly enhanced electrochemical properties can be attributed to its superior structural characteristics, including the large surface area, abundant pores, fast charge transfer, and catalytic effect of the intermediate product of metallic nickel. The NiO/β‐NiMoO 4 heterostructure delivers a high capacity of 1314 mA h g −1 at 0.2 A g −1 after 100 cycles. Furthermore, even after 400 cycles at 1 A g −1 , the reversible capacity remains at around 500 mA h g −1 . These results indicate that the NiO/β‐NiMoO 4 heterostructure shows great potential as an anode material for high‐performance LIBs.