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首页> 外文期刊>Advanced Functional Materials >A Novel MoSe_2-Reduced Graphene Oxide/Polyimide Composite Film for Applications in Electrocatalysis and Photoelectrocatalysis Hydrogen Evolution
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A Novel MoSe_2-Reduced Graphene Oxide/Polyimide Composite Film for Applications in Electrocatalysis and Photoelectrocatalysis Hydrogen Evolution

机译：新型MoSe_2还原氧化石墨烯/聚酰亚胺复合膜在电催化和光催化制氢中的应用

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摘要

Promising catalytic activity of MoSe_2 in the hydrogen evolution reaction (HER) is synthesized on a new reduced graphene oxide/polyimide (rGO/ PI) substrate by a simple electrochemical method. The MoSe_2 nanoparticles have excellent photo-responsive properties; the potential difference could reach 0.45 V with the photo-responsive time just 0.6 s. Furthermore, MoSe_2 thin film exhibits superior catalytic activity in the hydrogen evolution reaction (HER). It has a greater cathode current at more positive potential compared to other MoSe_2 and MoS_2, and the efficiency of H_2 evolution is strongly influenced by illumination; this suggests that MoSe_2 composite film has good photoelectrocatalysis properties for hydrogen evolution. Besides, both dark and illumination MoSe_2 films exhibit extremely high stability in acidic solution as the HER catalytic activity shows no degradation after 100 cycles for two hours. All results indicate that MoSe_2-rGO/PI composite film has potential to be a better catalyst for HER.
机译：通过一种简单的电化学方法，在新型的还原氧化石墨烯/聚酰亚胺（rGO / PI）基底上合成了MoSe_2在放氢反应（HER）中的有希望的催化活性。 MoSe_2纳米粒子具有出色的光响应特性；电位差可以达到0.45 V，光响应时间仅为0.6 s。此外，MoSe_2薄膜在析氢反应（HER）中表现出优异的催化活性。与其他的MoSe_2和MoS_2相比，它在更高的正电势下具有更大的阴极电流，并且光照强烈地影响H_2的释放效率。这表明MoSe_2复合膜具有良好的光电催化氢析出性能。此外，MoSe_2薄膜和深色MoSe_2薄膜在酸性溶液中均显示出极高的稳定性，因为HER催化活性在100次循环2小时后未显示降解。所有结果表明，MoSe_2-rGO / PI复合薄膜具有成为HER更好催化剂的潜力。

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  • 来源
    《Advanced Functional Materials》 |2015年第12期|1814-1820|共7页
  • 作者

    Lingpu Jia; Xiao Sun; Yimin Jiang; Shenjiao Yu; Chunming Wang;

  • 作者单位

    Department of Chemistry and Chemical Engineering Lanzhou University 222 Tianshui road, Lanzhou of Gansu province 730000, China;

    Department of Chemistry and Chemical Engineering Lanzhou University 222 Tianshui road, Lanzhou of Gansu province 730000, China;

    Department of Chemistry and Chemical Engineering Lanzhou University 222 Tianshui road, Lanzhou of Gansu province 730000, China;

    Department of Chemistry and Chemical Engineering Lanzhou University 222 Tianshui road, Lanzhou of Gansu province 730000, China;

    Department of Chemistry and Chemical Engineering Lanzhou University 222 Tianshui road, Lanzhou of Gansu province 730000, China;

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