Shasha Ma, Di Chen, Jie Xu, Zhaobin Ye, Jianyong Zhang
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引用次数: 0
摘要
多孔有机聚合物（POPs）是一种由共价键连接的有机结构单元组成的多孔材料，已被用作氢进化反应（HER）的高效电催化剂。在本文中，玻璃碳电极（GCE）通过化学修饰被掺入 B 的咪唑基多孔有机聚合物负载在 GCE 表面的 Ru 纳米粒子上。在多孔有机聚合物中掺入 B 可调节电催化剂的电子结构，从而提高其对 HER 的固有电催化活性。经过优化修饰的电极 GCE-Ru/PIM-Br2 在酸性溶液中的电流密度为 10 mA cm-2 时，过电位低至 271 mV，塔菲尔斜率较小（80 mV dec-1），并显示出长达 22 小时的长期稳定性。
Glassy Carbon Electrodes Modified with Ru Nanoparticles Loaded in B-Doped Imidazolium Porous Organic Polymers for Hydrogen Evolution Reaction.
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-2 with a small Tafel slope (80 mV dec-1) 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.
期刊介绍：
Chemistry—An Asian Journal is an international high-impact journal for chemistry in its broadest sense. The journal covers all aspects of chemistry from biochemistry through organic and inorganic chemistry to physical chemistry, including interdisciplinary topics.
Chemistry—An Asian Journal publishes Full Papers, Communications, and Focus Reviews.
A professional editorial team headed by Dr. Theresa Kueckmann and an Editorial Board (headed by Professor Susumu Kitagawa) ensure the highest quality of the peer-review process, the contents and the production of the journal.
Chemistry—An Asian Journal is published on behalf of the Asian Chemical Editorial Society (ACES), an association of numerous Asian chemical societies, and supported by the Gesellschaft Deutscher Chemiker (GDCh, German Chemical Society), ChemPubSoc Europe, and the Federation of Asian Chemical Societies (FACS).
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