高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

金属卟啉/多壁碳纳米管复合材料的电催化析氢反应

刘兆镇,姚燕芳,房坤,吕昀叡,叶勇,刘海洋   

  1. 华南理工大学
  • 收稿日期:2024-12-02 修回日期:2025-03-04 出版日期:2025-03-05 发布日期:2025-03-05
  • 通讯作者: 刘海洋 E-mail:chhyliu@scut.edu.cn
  • 基金资助:
    国家自然科学基金(批准号：21671068)资助

Metalloporphyrin/Multi-walled Carbon Nanotubes Composites for Electrocatalytic Hydrogen Evolution Reaction

LIU Zhaozhen, YAO Yanfang, FANG Kun, Lyu Yunrui, YE Yong, LIU Haiyang   

  1. South China University of Technology
  • Received:2024-12-02 Revised:2025-03-04 Online:2025-03-05 Published:2025-03-05
  • Contact: Hai-Yang LIU E-mail:chhyliu@scut.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(No. 21671068)

PDF (PC)

补充材料

1

摘要： 本文制备了过渡金属（Co、Cu、Mn、Ni、Fe）的5,10,15,20-四苯基卟啉配合物，并通过非共价相互作用制得了金属卟啉/多壁碳纳米管电催化析氢（HER）复合材料。结果表明，当金属卟啉的负载量为10 wt%时，复合材料CoTPP/MWCNTs的电催化析氢性能最佳。UV-Vis DRS和XPS结果显示，金属卟啉与多壁碳纳米管之间存在较强的π-π相互作用。金属卟啉/多壁碳纳米管复合材料的催化活性顺序为：Co＞Cu＞Mn＞Ni＞Fe。其中，CoTPP/MWCNTs在电流密度为10 mA/cm2下的过电位为631 mV，并且具有最小的Tafel斜率（161.3 mV/dec）以及电荷转移电阻（10.3 Ω），显示利用金属卟啉与多壁碳纳米管的非共价结合是构建复合材料电催化剂的一个有效途径。

关键词: 金属卟啉, 多壁碳纳米管, 非共价结合, 电催化, 析氢反应

Abstract: In this paper, 5,10,15,20-tetraphenylporphyrin complexes of transition metals (Co, Cu, Mn, Ni, Fe) were prepared and the metalloporphyrin/multi-walled carbon nanotubes composites for electrocatalytic hydrogen evolution reaction (HER) were fabricated by non-covalent interactions. The results showed that the composite CoTPP/MWCNTs exhibit the best electrocatalytic hydrogen evolution reaction performance when the loading of metalloporphyrin was 10 wt%. The UV-Vis DRS and XPS results showed that there are strong π-π interactions between the metalloporphyrin and the multi-walled carbon nanotubes. The catalytic activities of the metalloporphyrin/multi-walled carbon nanotubes composites are in the order of Co > Cu > Mn > Ni > Fe. Among them, the CoTPP/MWCNTs show an overpotential of 631 mV at the current density of 10 mA/cm2 and the smallest Tafel slope (161.3 mV/dec) as well as charge transfer resistance (10.3 Ω), suggesting the utilisation of the non-covalent combination of metalloporphyrin with multi-walled carbon nanotubes is an effective way to construct composite electrocatalysts.

Key words: Metalloporphyrin, Multi-walled carbon nanotubes, Noncovalent interaction, Electrocatalysis, Hydrogen evolution reaction

中图分类号: 

TrendMD: