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Issue 60, 2019

Understanding the strain effect of Au@Pd nanocatalysts by in situ surface-enhanced Raman spectroscopy

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Abstract

A gap-mode configuration was developed for the in situ SERS study of the structure–activity relationship of Au@Pd core–shell nanocatalysts, which show much better performance in the selective oxidation of benzyl alcohol compared to Pd. The in situ SERS results reveal that the tensile strain in the Pd shell could promote the activation of oxygen, thus improving the activity. Such a tensile strain effect decreases with the increase of the Pd shell thickness, leading to a volcano correlation between the activity and the shell thickness.

Graphical abstract: Understanding the strain effect of Au@Pd nanocatalysts by in situ surface-enhanced Raman spectroscopy

Supplementary files

Article information


Submitted
04 Apr 2019
Accepted
20 May 2019
First published
20 May 2019

Chem. Commun., 2019,55, 8824-8827
Article type
Communication

Understanding the strain effect of Au@Pd nanocatalysts by in situ surface-enhanced Raman spectroscopy

J. Wei, Y. Zhang, S. Qin, W. Yang, H. Zhang, Z. Yang, Z. Tian and J. Li, Chem. Commun., 2019, 55, 8824 DOI: 10.1039/C9CC02639H

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