Can I read Effects of Synthesis Procedures on Pt–Sn Alloy Formation and Their Catalytic Activity for Propane Dehydrogenation on EtoBox?

Effects of Synthesis Procedures on Pt–Sn Alloy Formation and Their Catalytic Activity for Propane Dehydrogenation by Lidan Deng; Xiaowei Liu; Zaikun Wu; Jie Xu; Zijian Zhou; Minghou Xu is a Materials Science article available to read on EtoBox.

What is Effects of Synthesis Procedures on Pt–Sn Alloy Formation and Their Catalytic Activity for Propane Dehydrogenation about?

In this work, we improved the conventional sequential impregnation synthetic method for preparing Pt-Sn/SiO 2 catalysts for propane dehydrogenation. Three different synthesis procedures (Pt calcination (PC), co-calcination (CC) and direct reduction (DR)) were performed and examined for catalytic dehydrogenation of propane. The results shows that the synthesis procedures had a notable influence on the activities of the supported Pt-Sn bimetallic catalysts. Co-calcination method mainly produces Pt 1 Sn 1 alloy nanoparticles over Pt-Sn/SiO 2 \_CC, which was totally inactive in propane dehydrogenation. Pt calcination resulted in the coexistence of Pt 0.84 Sn 0.16 , Pt 3 Sn 1 , Pt 1 Sn 1 on SiO 2 . Pt-Sn/SiO 2 \_PC exhibited the medium activity. Direct reduction caused the formation of Pt 3 Sn alloy nanoparticle. Pt-Sn/SiO 2 \_DR displayed the best catalytic performances among the studied catalysts, with 27% of propane conversion and 99% of selectivity towards propylene. These results in the present work indicated that the beneficial role of Sn requires the suitable catalyst preparation procedures. Direct reduction of Pt-Sn/SiO 2 as prepared can afford more homogenous active Pt 3 Sn 1 a

Who reads Effects of Synthesis Procedures on Pt–Sn Alloy Formation and Their Catalytic Activity for Propane Dehydrogenation?

Author

Lidan Deng; Xiaowei Liu; Zaikun Wu; Jie Xu; Zijian Zhou; Minghou Xu

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN

Field

Materials Science (Physical Sciences)