Pt1 enhanced C-H activation synergistic with Ptn catalysis for glycerol cascade oxidation to glyceric acid

Zhe An, Zilong Zhang, Zeyu Huang, Hongbo Han, Binbin Song, Jian Zhang, Qi Ping, Yanru Zhu, Hongyan Song, Bin Wang, Lirong Zheng and Jing He ()
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Zhe An: Beijing University of Chemical Technology
Zilong Zhang: Beijing University of Chemical Technology
Zeyu Huang: Beijing University of Chemical Technology
Hongbo Han: Beijing University of Chemical Technology
Binbin Song: Beijing University of Chemical Technology
Jian Zhang: Beijing University of Chemical Technology
Qi Ping: Beijing University of Chemical Technology
Yanru Zhu: Beijing University of Chemical Technology
Hongyan Song: Beijing University of Chemical Technology
Bin Wang: Sinopec Group
Lirong Zheng: Chinese Academy of Sciences
Jing He: Beijing University of Chemical Technology

Nature Communications, 2022, vol. 13, issue 1, 1-13

Abstract: Abstract The selective oxidation of glycerol to glyceric acid, an important value-added reaction from polyols, is a typical cascade catalytic process. It is still of great challenge to simultaneously achieve high glycerol activity and glyceric acid selectivity, suffering from either deep oxidation and C-C cleavage or poor oxidation efficiency from glyceraldehyde to glyceric acid. Herein, this work, inspired by nature, proposes a cascade synergistic catalysis strategy by atomic and low-coordinated cluster Pt on well-defined Cu-CuZrOx, which involves enhanced C-H activation on atomic Pt1 and O-H activation on cluster Ptn in the oxidation of glycerol to glyceraldehyde, and cluster Ptn for C=O activation followed by O-H insertion and atomic Pt1 for C-H activation in the tandem oxidation of glyceraldehyde to glyceric acid. The enhanced C-H activation in the cascade process by atomic Pt1 is revealed to be essential for the high glycerol activity (90.0±0.1%) and the glyceric acid selectivity (80.2±0.2%).

Date: 2022
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DOI: 10.1038/s41467-022-33038-w

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