Bimetallic PtSn nanoparticles confined in hierarchical ZSM-5 for propane dehydrogenation

Tianlei Wang; Zhikang Xu; Yuanyuan Yue; Tinghai Wang; Minggui Lin; Haibo Zhu

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Bimetallic PtSn nanoparticles confined in hierarchical ZSM-5 for propane dehydrogenation

Catalysis, Kinetics and Reaction Engineering | Updated：2026-01-06

- Bimetallic PtSn nanoparticles confined in hierarchical ZSM-5 for propane dehydrogenation
- Chinese Journal of Chemical Engineering Vol. 41, Issue 1, Pages: 384-391(2022)
- Affiliations：
  
  1. National Engineering Research Center of Chemical Fertilizer Catalyst, School of Chemical Engineering, Fuzhou University,Fuzhou,China,350002
  2. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences,Taiyuan,China,030001
  3. Qingyuan Innovation Laboratory,Quanzhou,China,362801
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2022
- Accepted：
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Tianlei Wang, Zhikang Xu, Yuanyuan Yue, Tinghai Wang, Minggui Lin, Haibo Zhu. Bimetallic PtSn nanoparticles confined in hierarchical ZSM-5 for propane dehydrogenation[J]. Chinese Journal of Chemical Engineering, 2022, 41(1): 384-391.
DOI：

Tianlei Wang, Zhikang Xu, Yuanyuan Yue, Tinghai Wang, Minggui Lin, Haibo Zhu. Bimetallic PtSn nanoparticles confined in hierarchical ZSM-5 for propane dehydrogenation[J]. Chinese Journal of Chemical Engineering, 2022, 41(1): 384-391. DOI：

摘要

Abstract

A series of PtSn/hierarchical ZSM-5 catalysts were developed for propane dehydrogenation

in which the PtSn bimetallic particles are confined in the mesopores of hierarchical ZSM-5 zeolite. The synthesis of PtSn/hierarchical ZSM-5 catalysts was achieved

via

the loading of Pt and Sn species onto the hierarchical ZSM-5 catalysts that are obtained through a desilication of conventional ZSM-5. The PtSn/hierarchical ZSM-5 catalysts were fully characterized by XRD

N2 adsorption

STEM

XPS

and℃O-IR techniques

which reveals that highly dispersed PtSn bimetallic nanoparticles are enclosed into mesopores of hierarchical ZSM-5. The catalytic performance of PtSn/hierarchical ZSM-5 is greatly affected by the concentrations of alkali solution in the desilication process and Sn/Pt ratios in PtSn bimetallic particles. The PtSn

1.00

/ ZSM-5(0.8) catalyst shows the highest efficiency in propane dehydrogenation

which gives an initial conversion of 46% and selectivity of 98% at 570 ℃. The high efficiency in these PtSn/hierarchical ZSM-5 catalysts for propane dehydrogenation is mainly ascribed to the confinement of PtSn particles in the mesopores of hierarchical ZSM-5 zeolite.

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