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首页> 外文期刊>ACS applied materials & interfaces >Extraordinarily Durable Graphdiyne-Supported Electrocatalyst with High Activity for Hydrogen Production at All Values of pH
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Extraordinarily Durable Graphdiyne-Supported Electrocatalyst with High Activity for Hydrogen Production at All Values of pH

机译：在所有pH值下均具有极高耐用性的石墨烯负载型电催化剂，具有很高的产氢活性

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摘要

We have used a scalable and inexpensive method to prepare a catalyst comprising graphdiyne nanosheet-supported cobalt nanoparticles wrapped by N-doped carbon (CoNC/GD); this unprecedentedly durable electrocatalyst mediated the hydrogen evolution reaction (HER) with highly catalytic activity over all values of pH. The durability, of the CoNC/GD structure was evidenced by the catalytic performance being preserved over 36 000, 38 000, and 9000 cycles under basic, acidic, and neutral conditions, respectively behavior superior to that of commercial Pt/C (10 wt %) under respective conditions. Such long-term durability has rarely been reported previously for HER catalysts. In addition, this electrode displayed excellent catalytic activity because the improved physical/chemical properties facilitated electron transfer in the composite. The combination of high durability and high activity at all values of pH for this nonprecious metal catalyst suggests great suitability for practical water splitting.
机译：我们已经使用了可扩展且廉价的方法来制备催化剂，该催化剂包括由N-掺杂碳（CoNC / GD）包裹的由石墨二炔纳米片支撑的钴纳米颗粒。这种前所未有的耐用电催化剂介导了氢气析出反应（HER），在所有pH值下均具有高度催化活性。 CoNC / GD结构的耐久性通过在碱性，酸性和中性条件下分别保留了超过36000、38000和9000个循环的催化性能证明，其性能分别优于商用Pt / C（10 wt％ ）。以前很少报道HER催化剂具有这种长期耐久性。另外，该电极表现出优异的催化活性，因为改进的物理/化学性质促进了复合物中的电子转移。这种非贵金属催化剂在所有pH值下均具有高耐久性和高活性，这表明它们非常适合实际的水分解。

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