Cooperative hydrogen production and C-C coupling organic synthesis in one photoredox cycle
Wang, Xuxu 1Su, Wenyue 1Wang, Jing 2Qi, Ming-Yu1
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作者信息
1. Fuzhou Univ
2. Wuhan Univ
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Abstract
Coupling hydrogen fuel production with selective oxidative organic synthesis in one cooperative manner offers a promising avenue to enable efficient utilization of photoexcited carriers to achieve sustainable chemistry. Herein, a new Mo2N/Mn0.3Cd0.7S/CoPi photocatalyst is reported for visible-light-driven hydrogen production paired with selectively oxidative C-C bond formation. Mo2N acting as electron collectors and reduction sites are adsorbed on the Mn0.3Cd0.7S by interfacial Mo-S bond, while CoPi acting as hole collectors and active sites for oxidation reaction are deposited on Mo2N/Mn0.3Cd0.7S. Remarkably, the synergetic effect of Mo2N and CoPi dual cocatalysts results in the adjustable flexibility of switching benzaldehyde (BAD) production to C-C coupling synthesis, thus exhibiting the high selectivity of C-C coupling products. Mechanism studies indicate that the C-C-Coupling reaction occurs through a free radical mechanism. The present work gives insight for achieving highly efficient C-C coupling synthesis with hydrogen evolution by loading dual cocatalysts.
NSTL
Elsevier