Dr. Mingwen Zhang, Kai Yu, Dr. Wei Ren, Dr. Yun Zheng, Dr. Yilin Chen, Dr. Jintian Cheng, Dr. Zhaoyu Wang, Prof. Zhi-An Lan
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Optimizing Electron Configuration of Cobalt-Based Cocatalysts Supported by Carbon Nitride Nanosheets to Achieve Enhanced Photocatalytic Water Oxidation
Cobalt-based materials are promising cocatalysts applied to polymeric carbon nitride (PCN) photocatalysts to achieve water oxidation due to their cost-effectiveness and comparable activity to Ru and Ir-based metal oxides. In this study, by optimizing the electron configuration of cobalt-based materials, a novel oxygen evolution cocatalyst, cobalt disulfide (CoS2), was developed to hybridize with PCN. A series of experimental and theoretical studies reveal that loading CoS2 on PCN contributes to improving photoinduced charge carrier transportation and reducing activation energy of the oxygen evolution reaction, thus achieving a significantly enhanced photocatalytic performance than the pure PCN. Furthermore, due to the more satisfactory electronic configuration of CoS2, the photocatalytic oxygen evolution rate of CoS2/CNNS hybrid is even more than 1 time higher than that of Co3O4/CNNS hybrid.
期刊介绍：
With an impact factor of 4.495 (2018), ChemCatChem is one of the premier journals in the field of catalysis. The journal provides primary research papers and critical secondary information on heterogeneous, homogeneous and bio- and nanocatalysis. The journal is well placed to strengthen cross-communication within between these communities. Its authors and readers come from academia, the chemical industry, and government laboratories across the world. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies, and is supported by the German Catalysis Society.
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