Dehydrogenation of isobutane to isobutene over a Pt-Cu bimetallic catalyst in the presence of LaAlO<sub>3</sub> perovskite

Yanyong Li; Meng Ge; Jiameng Wang; Mengquan Guo; Fanji Liu; Mingxun Han; Yanhong Xu; Lihong Zhang

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Dehydrogenation of isobutane to isobutene over a Pt-Cu bimetallic catalyst in the presence of LaAlO₃ perovskite

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

- Dehydrogenation of isobutane to isobutene over a Pt-Cu bimetallic catalyst in the presence of LaAlO₃ perovskite
- Chinese Journal of Chemical Engineering Vol. 32, Issue 4, Pages: 203-211(2021)
- Affiliations：
  
  1. Department of Catalysis Science and Technology, Tianjin Key Laboratory of Applied Catalysis Science&Technology, School of Chemical Engineering and Technology, Tianjin University,Tianjin,China,300350
  2. Department of Materials Engineering, Xuzhou College of Industrial Technology,Xuzhou,China,221140
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2021
- Accepted：
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perovskite[J]. 中国化学工程学报, 2021, 32(4): 203-211.
DOI：

perovskite[J]. 中国化学工程学报, 2021, 32(4): 203-211. DOI：

摘要

Abstract

In this study

isobutane dehydrogenation to isobutene reaction was carried out in a series of Pt-Cu bimetallic catalysts prepared by co-impregnation method. The catalysts were characterized by means of several techniques

including XRD

adsorption-desorption

TEM

XPS

-TPR and TG. The results show that the existence of LaAlO

perovskite can enhance the dispersion and sintering resistance of metal nanoparticles and facilitate the transfer of carbon deposits from active sites to the support. Interestingly

the perovskite nanoparticles can also inhibit the reduction of CuO

and the formation of PtCu alloys

resulting in the suitable interaction between Pt and Cu. The Pt-Cu/LaAlO

/SiO

catalyst exhibits the optimal dehydrogenation performance with an isobutane conversion of 47% and isobutene selectivity of 92% after 310 min reaction

which was ascribed to the unique role of LaAlO

perovskite as well as the appropriate Pt-Cu interaction.

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Dehydrogenation of isobutane to isobutene over a Pt-Cu bimetallic catalyst in the presence of LaAlO3 perovskite

DOI：

摘要

Abstract

关键词

Keywords

references

Dehydrogenation of isobutane to isobutene over a Pt-Cu bimetallic catalyst in the presence of LaAlO₃ perovskite