Role of Ni species in ZnO supported on Silicalite-1 for efficient propane dehydrogenation

Bofeng Zhang; Mingxia Song; Hongwang Liu; Guozhu Li; Sibao Liu; Li Wang; Xiangwen Zhang; Guozhu Liu

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Role of Ni species in ZnO supported on Silicalite-1 for efficient propane dehydrogenation

Updated：2026-01-06

- Role of Ni species in ZnO supported on Silicalite-1 for efficient propane dehydrogenation
- Chinese Journal of Chemical Engineering Vol. 43, Issue 3, Pages: 240-247(2022)
- Affiliations：
  
  1. Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University,Tianjin,China,300072
  2. Zhejiang Institute of Tianjin University,Ningbo,China,315201
  3. Haihe Laboratory of Sustainable Chemical Transformations,Tianjin,China,300192
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2022
- Accepted：
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Bofeng Zhang, Mingxia Song, Hongwang Liu, Guozhu Li, Sibao Liu, Li Wang, Xiangwen Zhang, Guozhu Liu. Role of Ni species in ZnO supported on Silicalite-1 for efficient propane dehydrogenation[J]. Chinese Journal of Chemical Engineering, 2022, 43(3): 240-247.
DOI：

Bofeng Zhang, Mingxia Song, Hongwang Liu, Guozhu Li, Sibao Liu, Li Wang, Xiangwen Zhang, Guozhu Liu. Role of Ni species in ZnO supported on Silicalite-1 for efficient propane dehydrogenation[J]. Chinese Journal of Chemical Engineering, 2022, 43(3): 240-247. DOI：

摘要

Abstract

Propane dehydrogenation (PDH) is one of the most effective technologies to produce propene. Non-noble zinc-based catalysts have paid increasing attention because of low cost and nontoxic

compared with industrial Pt and Cr-based catalysts. However

they often suffer from limited catalytic activity and poor stability. Here

we introduced moderate Ni into ZnO supported Silicalite-1 zeolite to increase catalytic activity and stability simultaneously. Zn

was the definite active site and NiZn alloy facilitated the sluggish H recombination into H

via reverse spillover. Furthermore

the introduction of Ni increased Lewis acid strength caused by electron transfer from ZnO to NiZn alloy

contributing to improved stability. For resulted 0.5NiZn/S-1

propene formation rate was 0.18 mol C

·(g Zn)

-1

·h

-1

at 550 ℃

which was above 1.5 times higher than that over Zn/S-1 without Ni. Under stability test

the deactivation of 0.5NiZn/S-1 was 0.019 h

-1

which was only 1/10 of that over Zn/S-1.

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