INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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Freeze-drying-assisted Synthesis of Mesoporous NiMoO4 Nanoclusters with Enhanced Lithium Storage Properties |
ZHANG Yili, TANG Xutao, LI Jianye, WANG Fuquan, TANG Kang, HU Jinxing, FANG Zhenxing, YAN Jiefeng, WANG Wei
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College of Science and Technology, Ningbo University, Ningbo 315300, China |
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Abstract Afacile and green freeze-drying-assisted method was proposed to synthesize mesoporous NiMoO4 nanoclusters. The mesoporous NiMoO4 nanoclusters exhibit high specific capacity and good rate performance when evaluated as anode materials for lithium-ion batteries (LIBs). The reversible specific capacity can be kept at 1 104.8 mAh/g after 100 cycles at a current density of 0.2 A/g, about 0.09% capacity fading per cycle. Even at the current densities of 1 A/g and 2 A/g, the mesoporous NiMoO4 nanoclusters electrode can still retain the reversible capacities of 664.7 mAh/g and 468.4 mAh/g, respectively. Furthermore, the full cell(mesoporous NiMoO4 nanoclusters anode/LiFePO4 cathode) displays a stable discharge capacity of 152.1 mAh/g at 0.1 C(1 C=170 mA/g). The improved electrochemical performance of mesoporous NiMoO4 nanoclusters is closely related to their unique porous structures and shorter diffusion pathways of lithium ions. This work offers a new perspective to the design of other porous electrode materials with a good energy storage performance.
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Published: 25 December 2021
Online: 2021-12-27
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Fund:This work was financially supported by the Natural Science Foundation of Zhejiang Province (LQ18B010001), the Scientific Research Fund of Ningbo (2018A610083), the National College Students' Innovation and Entrepreneurship Training Program (201913277002), and the National Natural Science Foundation Youth Fund of China (41907100). |
About author: Yili Zhangstudied in School of Science and Technology, Ningbo University in 2017, majoring in applied chemistry. Her research interests focus on the development of anode materials for lithiumion batteries. |
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