The electrochemical catalysts play an irreplaceable role in the fields of high-performance metal-air batteries, fuel cells and water splitting, and are the source of promoting the high performance of the system. However, a serious drawback is that activity and stability of catalysts are often difficult to maintain at the same time when applied to the electrode. Herein, we present a simple and scalable strategy to fabricate an efficient and stable electrode of IrO_x@GDY@CC, which consist of graphdiyne (GDY) nano sheets loading uniformly distributed IrO_x nanocrystals on carbon cloth (CC). Such an electrode system is applied to aqueous/solid-state rechargeable zinc-air batteries (ZABs) and found that the IrO_x@GDY@CC electrode showed the electron reservoir can transfer charge from GDY to IrO_x resulting in high-efficient catalytic activity and stability of oxygen evolution reaction. The aqueous ZABs assembled with IrO_x@GDY@CC electrode show durability and can work stably for up to 3800 hours. The solid-state ZABs with a high capacity of 793.5 mAh g⁻¹ can be cut into several small pieces and then bonded, keeping work normally with high stability, recoverability and safety. All those studies provided a new kind of efficient and stable cathode for ZABs, especially a new way to assemble modular solid-state ZABs.

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中文翻译：

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电子储库调节稳定 IrOx 作为固态锌空气电池的高效阴极

电化学催化剂在高性能金属空气电池、燃料电池和水分解等领域发挥着不可替代的作用，是促进系统高性能的源泉。然而，一个严重的缺点是催化剂应用于电极时往往难以同时保持活性和稳定性。在此，我们提出了一种简单且可扩展的策略来制造高效稳定的 IrO _{x @GDY@CC 电极，该电极由在碳布（CC）上负载均匀分布的 IrO x}纳米晶体的石墨二炔（GDY）纳米片组成。这种电极系统应用于水/固态可充电锌空气电池（ZAB），发现IrO _x @GDY@CC电极显示电子库可以将电荷从GDY转移到IrO _x，从而产生高效的催化活性和析氧反应的稳定性。与IrO _x @GDY@CC电极组装的水性ZAB表现出耐用性，可以稳定工作长达3800小时。固态ZAB具有793.5 mAh g ^-1的高容量，可以切割成多个小块然后粘合，保持正常工作，具有较高的稳定性、可恢复性和安全性。所有这些研究为ZAB提供了一种新型高效稳定的阴极，特别是组装模块化固态ZAB的新方法。

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