Decoupling the electronic and geometric effects of Pt catalysts in selective hydrogenation reaction

Decoupling the electronic and geometric effects has been a long cherished goal for heterogeneous catalysis due to their tangled relationship. Here, a novel orthogonal decomposition method is firstly proposed to settle this issue in p -chloronitrobenzene hydrogenation reaction on size- and shape-cont...

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Bibliographic Details
Published in:Nature communications 2022-06, Vol.13 (1), p.3561-3561, Article 3561
Main Authors: Wang, Zhe, Wang, Chunpeng, Mao, Shanjun, Lu, Bing, Chen, Yuzhuo, Zhang, Xie, Chen, Zhirong, Wang, Yong
Format: Article
Language:English
Subjects:
140/146
639/638/224/685
639/638/77/885
639/638/77/887
Catalysis
Catalysts
Chloronitrobenzene
Coordinates
Decomposition
Decoupling
Fermi level
Humanities and Social Sciences
Hydrogenation
multidisciplinary
Nanoparticles
Science
Science (multidisciplinary)
Selectivity
Work functions
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Summary:Decoupling the electronic and geometric effects has been a long cherished goal for heterogeneous catalysis due to their tangled relationship. Here, a novel orthogonal decomposition method is firstly proposed to settle this issue in p -chloronitrobenzene hydrogenation reaction on size- and shape-controlled Pt nanoparticles (NPs) carried on various supports. Results suggest Fermi levels of catalysts can be modulated by supports with varied work function ( W f ). And the selectivity on Pt NPs of similar size and shape is linearly related with the W f of support. Optimized Fermi levels of the catalysts with large W f weaken the ability of Pt NPs to fill valence electrons into the antibonding orbital of C–Cl bond, finally suppressing the hydrodehalogenation side reaction. Foremost, the geometric effect is firstly spun off through orthogonal relation based on series of linear relationships over various sizes of Pt NPs reflecting the electronic effect. Moreover, separable nested double coordinate system is established to quantitatively evaluate the two effects. Decoupling the electronic and geometric effects has been a long cherished goal for heterogeneous catalysis due to their tangled relationship. Here the authors propose a novel orthogonal decomposition method to decouple the electronic and geometric effect for supported metal catalysts.
ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-022-31313-4