MOF Encapsulated AuPt Bimetallic Nanoparticles for Improved Plasmonic-induced Photothermal Catalysis of CO2 Hydrogenation

Yaqin Wang; Xibo Zhang; Kuan Chang; Zhiying Zhao; Jiayu Huang; Qin Kuang

doi:10.1002/chem.202104514

MOF Encapsulated AuPt Bimetallic Nanoparticles for Improved Plasmonic-induced Photothermal Catalysis of CO₂ Hydrogenation

Chemistry. 2022 Mar 16;28(16):e202104514. doi: 10.1002/chem.202104514. Epub 2022 Feb 19.

Authors

Yaqin Wang¹, Xibo Zhang¹, Kuan Chang¹, Zhiying Zhao¹, Jiayu Huang¹, Qin Kuang¹

Affiliation

¹ State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and Department of Chemistry College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China.

PMID: 35118722
DOI: 10.1002/chem.202104514

Abstract

Exploring new catalytic strategies for achieving efficient CO₂ hydrogenation under mild conditions is of great significance for environmental remediation. Herein, a composite photocatalyst Zr-based MOF encapsulated plasmonic AuPt alloy nanoparticles (AuPt@UiO-66-NH₂ ) was successfully constructed for the efficient photothermal catalysis of CO₂ hydrogenation. Under light irradiation at 150 °C, AuPt@UiO-66-NH₂ achieved a CO production rate of 1451 μmol g_metal ^-1 h^-1 with 91 % selectivity, which far exceeded those obtained by Au@Pt@UiO-66-NH₂ with Pt shell on Au (599 μmol g_metal ^-1 h^-1 ) and Au@UiO-66-NH₂ (218 μmol g_metal ^-1 h^-1 ). The outstanding performances of AuPt@UiO-66-NH₂ were attributed to the synergetic effect originating from the plasmonic metal Au, doped active metal Pt, and encapsulation structure of UiO-66-NH₂ shell. This work provides a new way for photothermal catalysis of CO₂ and a reference for the design of high-performance plasmonic catalysts.

Keywords: CO2 hydrogenation; localized surface plasmon resonance; metal-organic frameworks; photothermal catalysis.

Abstract

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