Molecular Cobalt Catalysts Grafted onto Polymers for Efficient Hydrogen Generation Cathodes
Molecular Cobalt Catalysts Grafted onto Polymers for Efficient Hydrogen Generation Cathodes
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DOI：
10.1002/solr.202000281
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发表时间：
2020-08-06
期刊：
影响因子：
7.9
通讯作者：
Tang, Junwang
中科院分区：
文献类型：
--
作者：
Li, Cheng-Bo;Chu, Yilong;Tang, Junwang
共轭微孔聚合物原位电聚合以形成用于将分子催化剂固定到玻璃碳上的基础。然后通过π-π相互作用将具有成本效益的分子催化剂接枝到聚合物上，如通过X射线光电子能谱（XPS）、傅里叶变换红外光谱（FTIR）和紫外-可见光谱所证明的。所制备的阴极表现出高的活性对析氢（109 - 100营业额在2小时）在温和的酸性水溶液中，法拉第效率接近100%。阴极也显示出非常好的稳定性。总之，这篇文章介绍了一种简单的方法来设计和制备氢发生阴极使用广泛可用的和廉价的材料。
A conjugated microporous polymer is in situ electropolymerized to form a basis for immobilization of a molecular catalyst onto glassy carbon. A cost-effective molecular catalyst is then grafted onto the polymer by pi-pi interactions as evidenced by X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), and UV-vis spectra. The prepared cathode represents a high activity toward hydrogen evolution (109 100 turnovers in 2 h) in mild acidic aqueous solutions with a approximate to 100% faradaic efficiency. The cathode also shows a very good stability. In total, this article introduces a facile means to design and prepare a hydrogen generation cathode using widely available and inexpensive materials.