Switchable Tuning CO2 Hydrogenation Selectivity by Encapsulation of the Rh Nanoparticles While Exposing Single Atoms

Bing Han; Qinghe Li; Xunzhu Jiang; Yalin Guo; Qike Jiang; Yang Su; Lin Li; Botao Qiao

doi:10.1002/smll.202204490

Switchable Tuning CO₂ Hydrogenation Selectivity by Encapsulation of the Rh Nanoparticles While Exposing Single Atoms

Small. 2022 Nov;18(45):e2204490. doi: 10.1002/smll.202204490. Epub 2022 Sep 26.

Authors

Bing Han^{1

2}, Qinghe Li², Xunzhu Jiang^{2

3}, Yalin Guo^{2

3}, Qike Jiang⁴, Yang Su², Lin Li², Botao Qiao^{2

4}

Affiliations

¹ SINOPEC, Dalian Research Institute of Petroleum and Petrochemicals Co. Ltd, Dalian, 116045, P. R. China.
² CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China.
³ University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
⁴ Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences, Dalian, 116023, P. R. China.

PMID: 36161702
DOI: 10.1002/smll.202204490

Abstract

The switch of CO₂ hydrogenation selectivity from CH₄ to CO over TiO₂ supported Rh catalysts is accomplished via selective encapsulation of Rh nanoparticles while exposing Rh single atoms by high-temperature reduction (HTR) according to their different strong metal-support interaction (SMSI) occurrence conditions, which can be reversed by subsequent oxidation treatment.

Keywords: CO 2 hydrogenation; encapsulation; product selectivity switch; single atoms; strong metal-support interaction (SMSI).

Abstract

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