Recent progress on self-supported two-dimensional transition metal hydroxides nanosheets for electrochemical energy storage and conversion
Recent progress on self-supported two-dimensional transition metal hydroxides nanosheets for electrochemical energy storage and conversion
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DOI：
10.1016/j.ijhydene.2020.12.061
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发表时间：
2021-02
影响因子：
7.2
通讯作者：
L. Wan;Peican Wang
中科院分区：
文献类型：
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作者：
L. Wan;Peican Wang
过渡金属氢氧化物（TMHs）纳米片以其优越的表面积、高度可调的成分和低廉的成本在电化学能量存储和转换领域受到广泛关注。此外，自支撑电极由于其快速的电子传递和质量传递，从而提高了电极的稳定性和性能，在电化学器件中得到了广泛的研究。因此，回顾自支撑TMHs纳米片的最新进展对于开发用于电化学器件的高性能电极至关重要。在本文中，我们首先从层状单金属氢氧化物（LSHs）和层状双金属氢氧化物（LDHs）两方面介绍了TMHs的基本性质。然后，我们回顾了用于构建具有可调成分和结构的自支撑TMHs纳米片的各种合成方法。随后，对自支撑型TMHs纳米片在各种电化学应用（水电解、锌空气电池和超级电容器）中的电极性能和耐久性进行了全面总结。最后，对自支撑TMHs纳米片在电化学储能和转换应用方面面临的挑战和研究方向提出了进一步的展望。
Transition metal hydroxides (TMHs) nanosheets have attracted wide attention in electrochemical energy storage and conversion because of their superior surface area, highly tunable composition, and low cost. Moreover, the self-supported electrode has been extensively studied for electrochemical devices due to its fast electron transfer and mass transport, resulting in enhanced stability and electrode performance. Hence, reviewing the recent advances in self-supported TMHs nanosheets is crucial for developing high-performance electrodes for electrochemical devices. In this review, we first introduce the fundamental properties of TMHs in terms of layered single metal hydroxides (LSHs) and layered double hydroxides (LDHs). Then, we review various synthetic approaches utilized to construct self-supported TMHs nanosheets with tunable compositions and structures. Afterwards, the electrode performance and durability of self-supported TMHs nanosheets in various electrochemical applications (water electrolysis, zinc-air battery and supercapacitor) are comprehensively summarized. Finally, the further perspectives on current challenges and research directions of self-supported TMHs nanosheets towards electrochemical energy storages and conversion applications are proposed.