Volume 137, Issue 8 e202420274
Forschungsartikel

Heterogeneous Catalysis of Molecular-Like Au8M(PPh3)8n+ Clusters Cultivated in Mesoporous SBA-15

Tianqi Sun

Tianqi Sun

School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China

These authors contributed equally to this work.

Contribution: ​Investigation (equal), Writing - original draft (equal)

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Dr. Bingqing Ge

Dr. Bingqing Ge

School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China

These authors contributed equally to this work.

Contribution: ​Investigation (equal), Writing - original draft (equal)

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Dr. Shuangshuang Huang

Dr. Shuangshuang Huang

School of Physics and Technology, Wuhan University, Wuhan 430072, China

Contribution: ​Investigation (supporting), Writing - original draft (supporting)

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Dr. Xiuwen Wang

Dr. Xiuwen Wang

Center for Microscopy and Analysis, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China

Contribution: ​Investigation (supporting), Writing - original draft (supporting), Writing - review & editing (supporting)

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Yiqi Tian

Yiqi Tian

School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China

Contribution: ​Investigation (supporting), Writing - original draft (supporting), Writing - review & editing (supporting)

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Xiao Cai

Xiao Cai

School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China

Contribution: ​Investigation (supporting), Writing - original draft (supporting)

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Prof. Weiping Ding

Prof. Weiping Ding

School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China

Contribution: ​Investigation (supporting), Writing - original draft (supporting)

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Prof. Yan Zhu

Corresponding Author

Prof. Yan Zhu

School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China

Contribution: Conceptualization (lead), ​Investigation (lead), Supervision (lead), Writing - original draft (lead)

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First published: 02 December 2024

Abstract

It is a dream of researchers to be able to tailor the catalytic performances by adjusting heterogeneous catalysts at the atomic level. Atomically precise metal clusters provide us with the possibility to achieve this challenge. Here, we design a push-and-pull synthesis strategy coupled with TiOx coating to prepare the heterogeneous catalysts denoted as TiOx/Au8M@SBA via cultivating atomically precise Au8M(PPh3)8n+ (M=Pd, Pt or Au; n=2 for Pd/Pt and 3 for Au) clusters in mesoporous molecular sieve. The catalysts are made up of the three functional units, which include Au8M(PPh3)8n+ clusters that can act as the active sites, the pore environment of the SBA-15 that can announce a catalysis show for the clusters with precise number of atoms maintained during the chemical reactions, and the TiOx coating that can further inhibit the migration of the clusters under reaction conditions. The selective hydrogenation of acetylene performed in the fixed-bed reactor taken, for example, we learn how the atom-by-atom tailoring of a heterogeneous catalyst can switch on elusive heterogeneous mechanisms with cluster catalysis. This work sheds light on the fundamental insight into catalysis origin of heterogeneous catalysts and achieves a distinguished level of detail for cluster catalysis.

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.