The role of surface hydroxyl groups on a single-atomic Rh1/ZrO2 catalyst for direct methane oxidation

Gunjoo Kim; Gihun Kwon; Hyunjoo Lee

doi:10.1039/D0CC07514K

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The role of surface hydroxyl groups on a single-atomic Rh₁/ZrO₂ catalyst for direct methane oxidation†

Gunjoo Kim,^a Gihun Kwon^a and Hyunjoo Lee

*^a

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* Corresponding authors

^a Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, South Korea
E-mail: azhyun@kaist.ac.kr

Abstract

A single atomic Rh catalyst immobilized on zirconia (Rh₁/ZrO₂) was modified by hydrothermal treatment to have surface hydroxyl groups and used for direct methane oxidation. Both O₂ and H₂O₂ were used as oxidants. The amount of H₂O₂ could be reduced with enhanced methanol productivity in the presence of the surface hydroxyl groups. The formation of the surface hydroxyl groups upon hydrothermal treatment and their disappearance upon reaction were confirmed with diffuse reflectance infrared Fourier transform spectroscopy, indicating that the surface hydroxyl groups participate in the surface reaction.

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Article information

DOI: https://doi.org/10.1039/D0CC07514K
Article type: Communication
Submitted: 16 Nov 2020
Accepted: 07 Jan 2021
First published: 08 Jan 2021

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Chem. Commun., 2021,57, 1671-1674

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The role of surface hydroxyl groups on a single-atomic Rh₁/ZrO₂ catalyst for direct methane oxidation

G. Kim, G. Kwon and H. Lee, Chem. Commun., 2021, 57, 1671 DOI: 10.1039/D0CC07514K

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