Controlled Growth of Edge‐Enriched ReS2 Nanoflowers on Carbon Cloth Using Chemical Vapor Deposition for Hydrogen Evolution,Advanced Materials Interfaces

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Controlled Growth of Edge‐Enriched ReS2 Nanoflowers on Carbon Cloth Using Chemical Vapor Deposition for Hydrogen Evolution
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2020-10-05 , DOI: 10.1002/admi.202001196
Yajuan Zhao ₁ , Jianguo Li ₁ , Jianfeng Huang ₁ , Liangliang Feng ₁ , Liyun Cao ₁ , Yongqiang Feng ₁ , Zhaohui Zhang ₁ , Yong Xie ₂ , Haolin Wang _{2,

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Affiliation

Rhenium disulfide (ReS₂) has attracted tremendous interests as a promising electrocatalyst for hydrogen evolution reaction (HER) due to its unique distorted 1T structure. However, the controllable synthesis of ReS₂ with desired nanostructures is still a challenge for improving its catalytic performance. Here, ReS₂ nanoflowers are constructed on conductive carbon cloth by means of ambient pressure chemical vapor deposition. Characterization results confirm that the nanoflower structure with enormous edges is attributed to its propensity of out‐of‐plane growth. To investigate the structure variation of the nanoflowers, systematic growth experiments are carried out. By tuning the growth temperature, gas flow rate, and precursor mass, the edge‐exposed architecture is achieved. The dependence of catalytic performance on microstructures is further established, revealing that the ReS₂ nanoflowers with maximized edge sites exhibit optimal catalytic performance. These findings provide a guideline for optimizing the HER performance of ReS₂ and broaden the vision of improving novel HER catalysts.

中文翻译：

使用化学气相沉积氢析出的碳布上富集边缘的ReS2纳米花的受控生长

由于其独特的扭曲1T结构，二硫化unique（ReS ₂）作为一种有前途的析氢反应（HER）电催化剂吸引了极大的兴趣。然而，具有期望的纳米结构的ReS ₂的可控合成仍然是提高其催化性能的挑战。在这里，ReS ₂通过环境压力化学气相沉积法将纳米花构建在导电碳布上。表征结果证实，具有巨大边缘的纳米花结构归因于其平面外生长的倾向。为了研究纳米花的结构变化，进行了系统的生长实验。通过调整生长温度，气体流速和前体质量，可以实现边缘暴露的体系结构。进一步建立了催化性能对微观结构的依赖性，揭示了具有最大边缘位点的ReS ₂纳米花表现出最佳的催化性能。这些发现为优化ReS ₂的HER性能提供了指导，并拓宽了改进新型HER催化剂的视野。

更新日期：2020-11-21

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