Hydroxylated TiO2-induced high-density Ni clusters for breaking the activity-selectivity trade-off of CO2 hydrogenation

The reverse water gas shift reaction can be considered as a promising route to mitigate global warming by converting CO<sub>2</sub> into syngas in a large scale, while it is still challenging for non-Cu-based catalysts to break the trade-off between activity and selectivity. Here, the relatively high loading of Ni species is highly dispersed on hydroxylated TiO<sub>2</sub> through the strong Ni and -OH interactions, thereby inducing the formation of rich and stable Ni clusters (~1 nm) on anatase TiO<sub>2</sub> during the reverse water gas shift reaction. This Ni cluster/TiO<sub>2</sub> catalyst shows a simultaneous high CO<sub>2</sub> conversion and high CO selectivity. Comprehensive characterizations and theoretical calculations demonstrate Ni cluster/TiO<sub>2</sub> interfacial sites with strong CO<sub>2</sub> activation capacity and weak CO adsorption are responsible for its unique catalytic performances. This work disentangles the activity-selectivity trade-off of the reverse water gas shift reaction, and emphasizes the importance of metal-OH interactions on surface.

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Publication Details

Journal
Nature Communications
Published
2024-09-27
DOI
https://doi.org/10.1038/s41467-024-52547-4
Citations
51
Primary Topic
Catalysts for Methane Reforming
Type
article
Field-Weighted Citation Impact
5.45

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article

Hydroxylated TiO2-induced high-density Ni clusters for breaking the activity-selectivity trade-off of CO2 hydrogenation

Xiao-Meng Lai, Chao Ma, Qiang Fu, Feng Ryan Wang et al.
51 citations
Nature Communications
Catalysts for Methane Reforming
5.45
article

Hydroxylated TiO2-induced high-density Ni clusters for breaking the activity-selectivity trade-off of CO2 hydrogenation

Xiao-Meng Lai, Chao Ma, Qiang Fu, Feng Ryan Wang, Xin‐Pu Fu, Wei-Wei Wang, Chun‐Jiang Jia, Hao‐Xin Liu, Jinying Li, Congxiao Wang, Hao Gu
article en
51 citations

Abstract

The reverse water gas shift reaction can be considered as a promising route to mitigate global warming by converting CO<sub>2</sub> into syngas in a large scale, while it is still challenging for non-Cu-based catalysts to break the trade-off between activity and selectivity. Here, the relatively high loading of Ni species is highly dispersed on hydroxylated TiO<sub>2</sub> through the strong Ni and -OH interactions, thereby inducing the formation of rich and stable Ni clusters (~1 nm) on anatase TiO<sub>2</sub> during the reverse water gas shift reaction. This Ni cluster/TiO<sub>2</sub> catalyst shows a simultaneous high CO<sub>2</sub> conversion and high CO selectivity. Comprehensive characterizations and theoretical calculations demonstrate Ni cluster/TiO<sub>2</sub> interfacial sites with strong CO<sub>2</sub> activation capacity and weak CO adsorption are responsible for its unique catalytic performances. This work disentangles the activity-selectivity trade-off of the reverse water gas shift reaction, and emphasizes the importance of metal-OH interactions on surface.

Nature CommunicationsVol. 15(1)
University of Science and Technology of China (CN), University College Hospital (GB), Shandong University (CN), Hunan University (CN), University of Jinan (CN), Hefei National Center for Physical Sciences at Nanoscale (CN), University College London (GB)
National Science Foundation, Shandong University, National Natural Science Foundation of China, Engineering and Physical Sciences Research Council, National Key Research and Development Program of China, National Science Fund for Distinguished Young Scholars
Clean water and sanitation
Openalex Percentile: Top 3%
Catalysts for Methane Reforming
5.45
DOIOpen Access PDFOpenAlex
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