题目：Bimetallic NixFe_2-xP cocatalyst with tunable electronic structure for enhanced photocatalytic benzyl alcohol oxidation coupled with H₂ evolution over RP

作者：Shuang Li（李爽，2022级研究生）, Haili Lin, Xuemei Jia*（贾雪梅）, Xin Jin, Qianlong Wang, Xinyue Li, Shifu Chen, Jing Cao*（曹静）

单位：Key Laboratory of Green and Precise Synthetic and Applications, Ministry of Education; Anhui Provincial Key Laboratory of Synthetic Chemistry and Applications; College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China

摘要：Bimetallic phosphide cocatalysts have become a significant area of interest in photocatalysis research owing to their advantageous thermodynamic characteristics. Nevertheless, the attainment of super-stable and efficient cocatalysts through the modulation of their structure and composition has been rarely achieved. Herein, a series of bimetallic nickel–iron phosphides (NixFe_2-xP, where 0 < x < 2) cocatalysts with controllable structure and overpotential by adjusting atomic ratio of Ni/Fe were designed onto nonmetallic elemental red phosphorus (RP) for photocatalytic selective oxidation of benzyl alcohol (BA) coupled with hydrogen (H₂) production, which presented outstanding photocatalytic activity of benzaldehyde (BAD) and H₂ yield. The RP regulated by bimetallic phosphide cocatalysts (NixFe_2-xP) demonstrates higher photocatalytic oxidation-reduction activity compared to that regulated by monometallic phosphide cocatalysts (Ni₂P and Fe₂P). Especially, the RP regulated by Ni_1.25Fe_0.75P shows the best photocatalytic performance. Besides, experimental and theoretical calculation results further illustrated the Ni_1.25Fe_0.75P with the optimized electronic structure, which possessed good electrical conductivity and provided strong adsorption and abundant active sites for BA, thereby accelerating the electrons migration and lowering the reaction energy barrier of RP. This finding offers valuable insights for the rational design of highly effective cocatalysts aimed at optimizing the photocatalytic activity of composite photocatalysts.

影响因子：16.5

分区情况：一区

年、卷、页：2025，70，363–377

链接：https://doi.org/10.1016/S1872-2067(24)60236-6

（文、图：贾雪梅 /     审核：韩满意 /     审校：曹静 /     终审：杨振兴）