Applied Catalysis2022，Vol.3079.DOI:10.1016/j.apcatb.2022.121202

Embedding high loading and uniform Ni nanoparticles into silicalite-1 zeolite for dry reforming of methane

Liu, Yang Chen, Yong Gao, Zirui Zhang, Xiao Zhang, Lejian Wang, Meng Chen, Bingbing Diao, Yanan Li, Yilong Xiao, Dequan Wang, Xinping Ma, Ding Shi, Chuan
Applied Catalysis2022，Vol.3079.DOI:10.1016/j.apcatb.2022.121202
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  • NSTL
  • Elsevier

Embedding high loading and uniform Ni nanoparticles into silicalite-1 zeolite for dry reforming of methane

Liu, Yang 1Chen, Yong 1Gao, Zirui 2Zhang, Xiao 1Zhang, Lejian 1Wang, Meng 2Chen, Bingbing 1Diao, Yanan 1Li, Yilong 1Xiao, Dequan 3Wang, Xinping 1Ma, Ding 2Shi, Chuan1
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作者信息

  • 1. Dalian Univ Technol
  • 2. Peking Univ
  • 3. Univ New Haven
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Abstract

Embedding Ni nanoparticles (NPs) into supports has been widely accepted as one of solutions for Ni confinement, but high loading usually stands on the opposite of being well dispersed and encapsulated. Herein, we developed a controlled 'dissolution-recrystallization' method of embedding high loading and uniform Ni NPs into the shell of hollow silicalite-1 (S-1) zeolite. The sizes of Ni NPs maintained at ca. 4-5 nm with increasing Ni loading from 3% to 20%, and the TOF kept at ca. 60 s(-1) (800 ?) in the dry reforming of methane reaction. The augmented density of active sites with Ni loading rendered an outstanding reaction rate of 20.0 molCH(4)/g(cat)/h over 20% Ni@S-1. The embedded structure also endowed a good stability upon running for 150 h. This study paves the way for embedding high loading and uniform metal nanoparticles inside the zeolite, providing an effective strategy to stabilize metals under harsh reaction conditions.

Key words

Embedded Ni NPs/Silicalite-1 zeolite/Dry reforming of methane/ENHANCED PERFORMANCE/COKE RESISTANCE/SHELL CATALYST/CONVERSION/CLUSTERS/DESIGN/SITES/SIO2

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出版年

2022
Applied Catalysis

Applied Catalysis

ISSN：0926-3373
被引量34
参考文献量49
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