Dynamic activation catalysts for CO2 hydrogenation

Zhewei Zhang, Jun Yao, Chenyang Shen, Fengfeng Li, Changshun Deng, Taotao Zhao, Xuefeng Guo, Yan Zhu, Xiangke Guo, Nianhua Xue, Luming Peng and Weiping Ding ()
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Zhewei Zhang: Nanjing University
Jun Yao: Nanjing University
Chenyang Shen: Nanjing University
Fengfeng Li: Nanjing University
Changshun Deng: Nanjing University
Taotao Zhao: Nanjing University
Xuefeng Guo: Nanjing University
Yan Zhu: Nanjing University
Xiangke Guo: Nanjing University
Nianhua Xue: Nanjing University
Luming Peng: Nanjing University
Weiping Ding: Nanjing University

Nature Communications, 2025, vol. 16, issue 1, 1-8

Abstract: Abstract In typical heterogeneous catalytic reactions, catalysts, whether fixed or flowing, maintained their bulk and surface structures as stable as possible. We report here dynamic activation catalysts having continuously generate highly active sites in working, which enables a usually low active Cu/Al2O3 catalyst for CO2 hydrogenation, showing extraordinary catalytic performances. Using reaction streams in unusually high linear speed to blow and carry the Cu/Al2O3 particulates to collide cyclically with a rigid target, the CO2 conversion rate is more than three times enhanced at methanol selectivity promoted to 95% from less than 40% and the methanol space-time-yield is six times increased. By experimental and theoretical investigation, the dynamic activation of Cu/Al2O3 is defined as a discrete condensed state with a distorted and elongated lattice, reduced coordination, and abnormal catalytic properties. We envision that continuous research on the dynamical activation catalysts will advance novel methods for promoting catalytic performance and discovering new catalytic reactions.

Date: 2025
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DOI: 10.1038/s41467-025-64417-8

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