界面工程策略构建共价有机框架以促进高度可逆的锌金属。
Interface engineering strategy construction of covalent organic framework for promoting highly reversible zinc metal.
机构信息
State Key Laboratory of Chemistry and Utilization of Carbon based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830017, Xinjiang, China; Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
State Key Laboratory of Chemistry and Utilization of Carbon based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830017, Xinjiang, China.
出版信息
J Colloid Interface Sci. 2023 Oct 15;648:520-526. doi: 10.1016/j.jcis.2023.05.175. Epub 2023 Jun 1.
Zn-ion energy storage devices will play important roles in the future energy storage field. However, Zn-ion device development suffers significantly from adverse chemical reactions (dendrite formation, corrosion, and deformation) on the Zn anode surface. Zn dendrite formation, hydrogen evolution corrosion, and deformation combine to degrade Zn-ion devices. Zincophile modulation and protection using covalent organic frameworks (COF) inhibited dendritic growth by induced uniform Zn ion deposition, which also prevented chemical corrosion. The Zn@COF anode circulated stably for more than 1800 cycles even at high current density in symmetric cells and maintained a low and stable voltage hysteresis. This work explains the surface state of the Zn anode and provides information for further research.
锌离子储能设备将在未来的储能领域发挥重要作用。然而，锌离子器件的发展受到锌阳极表面的不良化学反应（枝晶形成、腐蚀和变形）的严重影响。锌枝晶的形成、析氢腐蚀和变形共同导致了锌离子器件的劣化。使用共价有机框架（COF）的亲锌调制和保护通过诱导均匀的锌离子沉积来抑制枝晶生长，同时也防止了化学腐蚀。在对称电池中，即使在高电流密度下，Zn@COF 阳极也能稳定循环超过 1800 次，并且保持低而稳定的电压滞后。这项工作解释了锌阳极的表面状态，为进一步的研究提供了信息。
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