Recover the activity of sintered supported catalysts by nitrogen-doped carbon atomization

Huang Zhou, Yafei Zhao, Jie Xu, Haoran Sun, Zhijun Li, Wei Liu (), Tongwei Yuan, Wei Liu, Xiaoqian Wang, Weng-Chon Cheong, Zhiyuan Wang, Xin Wang, Chao Zhao, Yancai Yao, Wenyu Wang, Fangyao Zhou, Min Chen, Benjin Jin, Rongbo Sun, Jing Liu, Xun Hong, Tao Yao, Shiqiang Wei, Jun Luo () and Yuen Wu ()
Additional contact information
Huang Zhou: University of Science and Technology of China
Yafei Zhao: University of Science and Technology of China
Jie Xu: Tianjin University of Technology
Haoran Sun: Nanjing University of Science and Technology
Zhijun Li: University of Science and Technology of China
Wei Liu: Nanjing University of Science and Technology
Tongwei Yuan: Shanghai University
Wei Liu: University of Science and Technology of China
Xiaoqian Wang: University of Science and Technology of China
Weng-Chon Cheong: Tsinghua University
Zhiyuan Wang: University of Science and Technology of China
Xin Wang: University of Science and Technology of China
Chao Zhao: University of Science and Technology of China
Yancai Yao: University of Science and Technology of China
Wenyu Wang: University of Science and Technology of China
Fangyao Zhou: University of Science and Technology of China
Min Chen: University of Science and Technology of China
Benjin Jin: University of Science and Technology of China
Rongbo Sun: University of Science and Technology of China
Jing Liu: Tianjin University of Technology
Xun Hong: University of Science and Technology of China
Tao Yao: University of Science and Technology of China
Shiqiang Wei: University of Science and Technology of China
Jun Luo: Tianjin University of Technology
Yuen Wu: University of Science and Technology of China

Nature Communications, 2020, vol. 11, issue 1, 1-9

Abstract: Abstract The sintering of supported metal nanoparticles is a major route to the deactivation of industrial heterogeneous catalysts, which largely increase the cost and decrease the productivity. Here, we discover that supported palladium/gold/platinum nanoparticles distributed at the interface of oxide supports and nitrogen-doped carbon shells would undergo an unexpected nitrogen-doped carbon atomization process against the sintering at high temperatures, during which the nanoparticles can be transformed into more active atomic species. The in situ transmission electron microscopy images reveal the abundant nitrogen defects in carbon shells provide atomic diffusion sites for the mobile atomistic palladium species detached from the palladium nanoparticles. More important, the catalytic activity of sintered and deactivated palladium catalyst can be recovered by this unique N-doped carbon atomization process. Our findings open up a window to preparation of sintering-resistant single atoms catalysts and regeneration of deactivated industrial catalysts.

Date: 2020
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DOI: 10.1038/s41467-019-14223-w

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