Preparation of Large-Size, Superparamagnetic, and Highly Magnetic Fe<sub>3</sub>O<sub>4</sub>@PDA Core–Shell Submicrosphere-Supported Nano-Palladium Catalyst and Its Application to Aldehyde Preparation through Oxidative Dehydrogenation of Benzyl Alcohols
Haichang Guo,
Renhua Zheng,
Huajiang Jiang,
Zhenyuan Xu,
Aibao Xia
Affiliations
Haichang Guo
Zhejiang Key Laboratory of Green Pesticides and Cleaner Production Technology, Catalytic Hydrogenation Research Center, Zhejiang University of Technology, Hangzhou 310014, China
Renhua Zheng
School of Pharmaceutical and Material Engineering, Taizhou University, Taizhou 318000, China
Huajiang Jiang
School of Pharmaceutical and Material Engineering, Taizhou University, Taizhou 318000, China
Zhenyuan Xu
Zhejiang Key Laboratory of Green Pesticides and Cleaner Production Technology, Catalytic Hydrogenation Research Center, Zhejiang University of Technology, Hangzhou 310014, China
Aibao Xia
Zhejiang Key Laboratory of Green Pesticides and Cleaner Production Technology, Catalytic Hydrogenation Research Center, Zhejiang University of Technology, Hangzhou 310014, China
Large-size, superparamagnetic, and highly magnetic Fe3O4@PDA core−shell submicrosphere-supported nano-palladium catalysts were prepared in this study. Dopamine was encapsulated on the surface of Fe3O4 particles via self-polymerization and then protonated to positively charge the microspheres. PdCl42− was dispersed on the surface of the microspheres by positive and negative charge attraction and then reduced to nano-palladium. With air as oxidant, the catalyst can successfully catalyze the dehydrogenation of benzyl alcohols to produce the corresponding aldehydes at 120 °C.
