Volume 137, Issue 8 e202420306
Forschungsartikel

Ultra-small Metallic Nickel Nanoparticles on Dealuminated Zeolite for Active and Durable Catalytic Dehydrogenation

Huixin Wu

Huixin Wu

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Hai Wang

Hai Wang

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Yating Lv

Yating Lv

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Yuexin Wu

Yuexin Wu

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Yike Wang

Yike Wang

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Qingsong Luo

Qingsong Luo

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Yu Hui

Yu Hui

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Lujie Liu

Lujie Liu

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Mengting Zhang

Mengting Zhang

School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin, 300350 China

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Kunming Hou

Kunming Hou

Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204 China

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Prof. Lina Li

Prof. Lina Li

Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204 China

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Jianrong Zeng

Jianrong Zeng

Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204 China

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Prof. Weili Dai

Prof. Weili Dai

School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin, 300350 China

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Prof. Liang Wang

Corresponding Author

Prof. Liang Wang

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

Zhejiang Baima Lake Laboratory, Hangzhou, 311121 China

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Prof. Feng-Shou Xiao

Prof. Feng-Shou Xiao

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

Zhejiang Baima Lake Laboratory, Hangzhou, 311121 China

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First published: 02 December 2024

Abstract

Each step in the catalyst synthesis process plays an important role in tuning the catalyst structures. For zeolite-supported nickel catalysts, we found the conventional calcination-reduction method typically leads to the formation of large nickel particles, but a pre-aging in hydrogen or nitrogen at a low temperature prior to final reduction can result in ultra-small nickel nanoparticles in a metallic state. This pre-aging treatment facilitates the interaction between Ni2+ cations and silanol nests on zeolite before the decomposition of the metal salt, leading to the formation of nanoparticles with an average diameter of ~1.2 nm. In contrast, the pre-calcination in oxygen caused the Ni2+ aggregation before the decomposition of the metal salt precursor, yielding nickel nanoparticles larger than 5 nm. Given the structure sensitivity of nickel in cyclohexane dehydrogenation for hydrogen production, the ultra-small nickel nanoparticles exhibited significantly enhanced activity and durability compared to previous nickel catalysts.

Conflict of Interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.