Efficient Hydrogenolysis of C–O Bond over Pd/P-TiO 2 : The Generation and Role of Brønsted Acid Site Triggered by Spillover Hydrogen

作者：Tingting Xiao, Jingrong Li, Jian Li, Qihang Gong, Peikai Luo, Xinluona Su, Haiyang Cheng, Chao Zhang, Fengyu Zhao · 发表于：ACS Catalysis · 年份：2025 · DOI：10.1021/acscatal.4c06939 · 被引用次数：23 · 研究领域：Catalysis for Biomass Conversion、Catalysis and Hydrodesulfurization Studies、Lignin and Wood Chemistry

The hydrogenolysis of cellulose-derived 5-hydroxymethylfurfural is essential for the production of fuels and chemicals from biomass. Herein, we fabricated a phosphorus-doped Pd/P-TiO 2 catalyst for the hydrodeoxygenation of 5-hydroxymethylfurfural to 2,5-dimethylfuran. A large number of defects and electron-deficient Ti 4+ sites ( d Ti 4+ ) were formed by doping phosphorus into the TiO 2 support, which could promote hydrogen spillover and reactant adsorption. Moreover, the spilled active hydrogen induced the formation of P–O(H)- d Ti 4+, which acted as a “Brønsted acidic site” to promote the activation of C–O bonds. Consequently, the Pd/P-TiO 2 catalyst exhibited superb activity for the hydrodeoxygenation of 5-hydroxymethylfurfural to 2,5-dimethylfuran at mild conditions of 150 °C under 1 MPa H 2 .