Ma Shasha, Chen Di, Xu Jie, Ye Zhaobin, Zhang Jianyong
MOE Laboratory of Polymeric Composite and Functional Materials, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China.
Chem Asian J. 2025 Jan 2;20(1):e202401042. doi: 10.1002/asia.202401042. Epub 2024 Nov 14.
Porous organic polymers (POPs) are a type of porous material composed of organic structural units connected by covalent bonds and POPs have been used as efficient electrocatalysts for hydrogen evolution reaction (HER). Herein, glassy carbon electrode (GCE) is chemically modified by B-doped imidazolium-based porous organic polymers loaded with Ru nanoparticles on the GCE surface. The incorporation of B in the POPs regulates the electronic structure of electrocatalysts to enhance their inherent electrocatalytic activity for HER. The optimized modified electrode GCE-Ru/PIM-Br2 exhibits a low overpotential of 271 mV at a current density of 10 mA cm with a small Tafel slope (80 mV dec) in acidic solutions, and shows long-term stability for up to 22 h. This work presents a strategy to develop B-doped porous electrodes with loaded metal nanoparticles to strengthen the catalytic performance of electrocatalysts.
多孔有机聚合物（POPs）是一种由通过共价键连接的有机结构单元组成的多孔材料，并且POPs已被用作析氢反应（HER）的高效电催化剂。在此，玻碳电极（GCE）通过负载在GCE表面的钌纳米颗粒的硼掺杂咪唑基多孔有机聚合物进行化学修饰。硼掺入POPs中调节了电催化剂的电子结构，以增强其对HER的固有电催化活性。优化后的修饰电极GCE-Ru/PIM-Br2在酸性溶液中，在电流密度为10 mA cm时表现出271 mV的低过电位，且塔菲尔斜率较小（80 mV dec），并显示出长达22小时的长期稳定性。这项工作提出了一种开发负载金属纳米颗粒的硼掺杂多孔电极以增强电催化剂催化性能的策略。
