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Hierarchical Porous NiO/β-NiMoO4 Heterostructure as Superior Anode Material for Lithium Storage.
ChemPlusChem ( IF 3.0 ) Pub Date : 2018-07-03 , DOI: 10.1002/cplu.201800220 Zhijian Wang 1 , Shilin Zhang 2 , Hai Zeng 3 , Haimin Zhao 4 , Wei Sun 4 , Meng Jiang 1 , Chuanqi Feng 1 , Jianwen Liu 1 , Tengfei Zhou 2, 3, 5 , Yang Zheng 2 , Zaiping Guo 1, 2
ChemPlusChem ( IF 3.0 ) Pub Date : 2018-07-03 , DOI: 10.1002/cplu.201800220 Zhijian Wang 1 , Shilin Zhang 2 , Hai Zeng 3 , Haimin Zhao 4 , Wei Sun 4 , Meng Jiang 1 , Chuanqi Feng 1 , Jianwen Liu 1 , Tengfei Zhou 2, 3, 5 , Yang Zheng 2 , Zaiping Guo 1, 2
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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-NiMoO4 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 NiMoO4 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-NiMoO4 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-NiMoO4 heterostructure shows great potential as an anode material for high-performance LIBs.
中文翻译：
分层多孔NiO /β-NiMoO4异质结构作为锂存储的高级阳极材料。
三元过渡金属氧化物（TTMOs）由于其引人入胜的性能而引起了可充电电池的极大关注。然而，由于较差的固有电子电导率和较差的结构稳定性而导致的电化学性能不能令人满意，这阻碍了它们的实际应用。在这里，制造了新颖的分层多孔NiO /β-NiMoO4异质结构，并在锂离子电池（LIB）中表现出高可逆容量，优异的倍率性能和出色的循环稳定性，这比相应的单相NiMoO4和NiO材料。电化学性能的显着提高归因于其优越的结构特性，包括大表面积，丰富的孔，快速的电荷转移，和金属镍中间产物的催化作用。100次循环后，NiO /β-NiMoO4异质结构在0.2 A g-1时可提供1314 mA h g-1的高容量。此外，即使在1 A g-1下经过400次循环后，可逆容量仍保持在500 mA h g-1左右。这些结果表明，NiO /β-NiMoO4异质结构作为高性能LIB的负极材料具有巨大的潜力。
更新日期：2018-07-03
中文翻译：
分层多孔NiO /β-NiMoO4异质结构作为锂存储的高级阳极材料。
三元过渡金属氧化物（TTMOs）由于其引人入胜的性能而引起了可充电电池的极大关注。然而，由于较差的固有电子电导率和较差的结构稳定性而导致的电化学性能不能令人满意，这阻碍了它们的实际应用。在这里，制造了新颖的分层多孔NiO /β-NiMoO4异质结构，并在锂离子电池（LIB）中表现出高可逆容量，优异的倍率性能和出色的循环稳定性，这比相应的单相NiMoO4和NiO材料。电化学性能的显着提高归因于其优越的结构特性，包括大表面积，丰富的孔，快速的电荷转移，和金属镍中间产物的催化作用。100次循环后，NiO /β-NiMoO4异质结构在0.2 A g-1时可提供1314 mA h g-1的高容量。此外，即使在1 A g-1下经过400次循环后，可逆容量仍保持在500 mA h g-1左右。这些结果表明，NiO /β-NiMoO4异质结构作为高性能LIB的负极材料具有巨大的潜力。
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