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Hydrogenation of Biofuels with Formic Acid over a Palladium-Based Ternary Catalyst with Two Types of Active Sites

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Su,  Dang Sheng
Shenyang National Laboratory of Materials Science, Institute of Metal Research, Chinese Academy of Science;
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Wang, L., Zhang, B., Meng, X., Su, D. S., & Xiao, F.-S. (2014). Hydrogenation of Biofuels with Formic Acid over a Palladium-Based Ternary Catalyst with Two Types of Active Sites. ChemSusChem, 7(6), 1537-1541. doi:10.1002/cssc.201400039.


Cite as: https://hdl.handle.net/11858/00-001M-0000-001A-1765-F
Abstract
A composite catalyst including palladium nanoparticles on titania (TiO2) and on nitrogen-modified porous carbon (Pd/TiO2@N—C) is synthesized from palladium salts, tetrabutyl titanate, and chitosan. N2 sorption isotherms show that the catalyst has a high BET surface area (229 m2g−1) and large porosity. XPS and TEM characterization of the catalyst shows that palladium species with different chemical states are well dispersed across the TiO2 and nitrogen-modified porous carbon, respectively. The Pd/TiO2@N—C catalyst is very active and shows excellent stability towards hydrogenation of vanillin to 2-methoxy-4-methylphenol using formic acid as hydrogen source. This activity can be attributed to a synergistic effect between the Pd/TiO2 (a catalyst for dehydrogenation of formic acid) and Pd/N—C (a catalyst for hydrogenation of vanillin) sites.