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Updated: May 25, 2026

Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes
Published on: June 24, 2022
Preparation and characterization of hydrophobic Pt-Fe catalysts with enhanced catalytic activities for interface
Sheng Hu1, Jingwei Hou, Liangping Xiong
1Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China. husheng@126.com
Abstract:
Liquid phase catalytic exchange reactions are mainly used for separation of hydrogen isotopes from liquid water. Based on the carbon-supported Pt and Pt-Fe catalysts, different hydrophobic Pt and Pt-Fe catalysts were fabricated for use in such reactions. The characterization results indicated the Pt-Fe alloy was formed in the Pt(3)Fe/C catalyst prepared using a citric-acid-assisted NaBH(4) reduction method (CA-NaBH(4)). However, there were more Fe oxide species and the Fe components existed independently in the Pt(3)Fe/C catalyst prepared by the modified microwave-irradiated ethyl glycol reduction procedure (MI). Performance tests demonstrated that the activities of the hydrophobic Pt-Fe catalysts with appropriate Fe/Pt ratios, using the MI method, were enhanced because of the addition of Fe. In contrast, the hydrophobic Pt(3)Fe catalyst prepared using the CA-NaBH(4) method had lower catalytic activity than pure Pt. Possible reasons were explained by reaction mechanisms of double routes of LPCE catalysis.
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