Atomically dispersed nickel as coke-resistant active sites for methane dry reforming

Mohcin Akri, Shu Zhao, Xiaoyu Li, Ketao Zang, Adam F. Lee, Mark A. Isaacs, Wei Xi, Yuvaraj Gangarajula, Jun Luo, Yujing Ren, Yi-Tao Cui, Lei Li, Yang Su, Xiaoli Pan, Wu Wen, Yang Pan, Karen Wilson, Lin Li, Botao Qiao (), Hirofumi Ishii, Yen-Fa Liao, Aiqin Wang, Xiaodong Wang and Tao Zhang ()
Additional contact information
Mohcin Akri: Chinese Academy Sciences
Shu Zhao: Beijing University of Technology
Xiaoyu Li: Chinese Academy Sciences
Ketao Zang: Tianjin University of Technology
Adam F. Lee: RMIT University
Mark A. Isaacs: University College London
Wei Xi: Tianjin University of Technology
Yuvaraj Gangarajula: Chinese Academy Sciences
Jun Luo: Tianjin University of Technology
Yujing Ren: Chinese Academy Sciences
Yi-Tao Cui: The University of Tokyo
Lei Li: Hyogo Science and Technology Association
Yang Su: Chinese Academy Sciences
Xiaoli Pan: Chinese Academy Sciences
Wu Wen: University of Science and Technology of China
Yang Pan: University of Science and Technology of China
Karen Wilson: RMIT University
Lin Li: Chinese Academy Sciences
Botao Qiao: Chinese Academy Sciences
Hirofumi Ishii: National Synchrotron Radiation Research Center
Yen-Fa Liao: National Synchrotron Radiation Research Center
Aiqin Wang: Chinese Academy Sciences
Xiaodong Wang: Chinese Academy Sciences
Tao Zhang: Chinese Academy Sciences

Nature Communications, 2019, vol. 10, issue 1, 1-10

Abstract: Abstract Dry reforming of methane (DRM) is an attractive route to utilize CO2 as a chemical feedstock with which to convert CH4 into valuable syngas and simultaneously mitigate both greenhouse gases. Ni-based DRM catalysts are promising due to their high activity and low cost, but suffer from poor stability due to coke formation which has hindered their commercialization. Herein, we report that atomically dispersed Ni single atoms, stabilized by interaction with Ce-doped hydroxyapatite, are highly active and coke-resistant catalytic sites for DRM. Experimental and computational studies reveal that isolated Ni atoms are intrinsically coke-resistant due to their unique ability to only activate the first C-H bond in CH4, thus avoiding methane deep decomposition into carbon. This discovery offers new opportunities to develop large-scale DRM processes using earth abundant catalysts.

Date: 2019
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DOI: 10.1038/s41467-019-12843-w

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