Abstract Zeolitic imidazolate framework-8 (ZIF-8) derived ZnO and ZnO@Ta2O5 (Ta2O5 anchored to ZIF-8 derived ZnO) nanocomposites were synthesized by a rapid microwave synthesis method. The synthesized ZIF-8, ZnO, and ZnO@Ta2O5 were further characterized by XRD, XPS, BET, SEM, and HR-TEM. XRD refinement data confirmed the formation of a pure and single hexagonal wurtzite structure in ZnO and ZnO@Ta2O5. The ZnO@Ta2O5 nanocomposite was used as a working electrode in methanol oxidation reaction (MOR) and urea oxidation reaction (UOR) in alkaline media. The activity and stability of the ZnO@Ta2O5 electrode was compared with those of ZIF-8 and ZIF-8 derived ZnO. As per our results, the ZnO@Ta2O5 electrode exhibited promising activity and stability in these reactions.

中文翻译：

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ZIF-8衍生的ZnO和ZnO@Ta2O5纳米复合材料的快速微波辅助构建作为甲醇和尿素电氧化的有效电极

摘要 采用快速微波合成法合成了沸石咪唑骨架-8 (ZIF-8) 衍生的 ZnO 和 ZnO@Ta2O5（Ta2O5 锚定在 ZIF-8 衍生的 ZnO 上）纳米复合材料。合成的 ZIF-8、ZnO 和 ZnO@Ta2O5 通过 XRD、XPS、BET、SEM 和 HR-TEM 进一步表征。XRD 精修数据证实在 ZnO 和 ZnO@Ta2O5 中形成了纯六方纤锌矿结构。ZnO@Ta2O5纳米复合材料在碱性介质中用作甲醇氧化反应（MOR）和尿素氧化反应（UOR）的工作电极。将 ZnO@Ta2O5 电极的活性和稳定性与 ZIF-8 和 ZIF-8 衍生的 ZnO 的活性和稳定性进行了比较。根据我们的结果，ZnO@Ta2O5 电极在这些反应中表现出良好的活性和稳定性。