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云师大化工学院赵学教授在在top期刊《J Colloid Interf Sci》（胶体与界面科学杂志）发表最新研究成果

已有 218 次阅读 2024-6-29 09:13 |个人分类:云师大研究|系统分类:论文交流

2024年6月28日，Elsevier 旗下top期刊《Journal of Colloid and Interface Science》（影响因子：9.4）在线发表了云南师范大学化学化工学院赵学教授和赵焱教授最新研究成果《Functional partitioning synergistically enhances multi-scenario nitrate reduction》。这是继昨日赵学教授以共同通讯作者发表研究论文的又一研究成果。第一作者单位为云南师范大学化学化工学院，第一作者为云南师范大学化学化工学院赵学教授、赵焱教授和浙江海洋大学周英堂教授为共同通讯作者。

https://www.sciencedirect.com/science/article/abs/pii/S0021979724014620

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Abstract

The promising electrocatalytic nitrate reduction reaction (eNitRR) for distributed ammonia synthesis requires the fine design of functionally compartmentalised and synergistically complementary integrated catalysts to meet the needs of low-cost and efficient ammonia synthesis. Herein, the partitionable CoP3 and Cu3P modules were built on the copper foam substrate, and the functional differentiation promoted the catalytic performance of the surface accordion-like CoP3/Cu3P@CF for eNitRR in complex water environment. Where the ammonia yield rate is as high as 23988.2 μg h−1 cm−2, and the Faradaic efficiency is close to 100 %. With CoP3/Cu3P@CF as the core, the assembled high-performance Zn-nitrate flow battery can realize the dual function of ammonia production and power supply, and can also realize the continuous production of ammonia with high selectivity driven by solar energy. The ammonia recovery reaches 753.9 mg L-1, which shows the superiority of CoP3/Cu3P@CF in multiple application scenarios and provides important experience for the vigorous development of eNitRR. Density functional theory calculation reveal that CoP3 and Cu3P sites play a relay synergistic role in eNitRR catalyzed by CoP3/Cu3P@CF. CoP3 first promotes the activation of NO3– to *NO3H, and then continuously provides proton hydrogen for the eNitRR on the surface of Cu3P, which relays the synergistic catalytic effect to promote the efficient conversion of NO3– to NH3. This study not only develops a catalyst that can promote the efficient reduction of NO3– to ammonia through an easy-to-obtain innovative strategy, but also provides an alternative strategy for the development of eNitRR that is suitable for multiple scenarios and meets the production conditions.