Plasmonic Cu Nanoparticles for the Low-temperature Photo-driven Water-gas Shift Reaction

Jiaqi Zhao; Ya Bai; Zhenhua Li; Jinjia Liu; Wei Wang; Pu Wang; Bei Yang; Run Shi; Geoffrey I N Waterhouse; Xiao-Dong Wen; Qing Dai; Tierui Zhang

doi:10.1002/anie.202219299

Plasmonic Cu Nanoparticles for the Low-temperature Photo-driven Water-gas Shift Reaction

Angew Chem Int Ed Engl. 2023 Mar 20;62(13):e202219299. doi: 10.1002/anie.202219299. Epub 2023 Feb 17.

Authors

Jiaqi Zhao^{1

2}, Ya Bai^{3

4

5}, Zhenhua Li¹, Jinjia Liu^{4

5

6}, Wei Wang⁷, Pu Wang^{1

2}, Bei Yang⁸, Run Shi¹, Geoffrey I N Waterhouse⁹, Xiao-Dong Wen^{4

5}, Qing Dai^{2

8}, Tierui Zhang^{1

2}

Affiliations

¹ Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
² Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
³ State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
⁴ Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China.
⁵ Synfuels China, Beijing, 100195, China.
⁶ College of Chemistry and Environmental Science, Inner Mongolia Key Laboratory of Green Catalysis, Inner Mongolia Normal University, Hohhot, 010022, China.
⁷ Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
⁸ CAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China.
⁹ School of Chemical Sciences, The University of Auckland, Auckland, 1142, New Zealand.

PMID: 36734471
DOI: 10.1002/anie.202219299

Abstract

The activation of water molecules in thermal catalysis typically requires high temperatures, representing an obstacle to catalyst development for the low-temperature water-gas shift reaction (WGSR). Plasmonic photocatalysis allows activation of water at low temperatures through the generation of light-induced hot electrons. Herein, we report a layered double hydroxide-derived copper catalyst (LD-Cu) with outstanding performance for the low-temperature photo-driven WGSR. LD-Cu offered a lower activation energy for WGSR to H₂ under UV/Vis irradiation (1.4 W cm^-2 ) compared to under dark conditions. Detailed experimental studies revealed that highly dispersed Cu nanoparticles created an abundance of hot electrons during light absorption, which promoted *H₂ O dissociation and *H combination via a carboxyl pathway, leading to the efficient production of H₂ . Results demonstrate the benefits of exploiting plasmonic phenomena in the development of photo-driven low-temperature WGSR catalysts.

Keywords: Cu-Based Catalysts; Layered Double Hydroxide; Localized Surface Plasmon Resonances; Photo-Driven Catalysis; Water-Gas Shift Reaction.

Abstract

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