Face-Rich Au Nanoparticles Govern the Size Dependence of Photocatalytic Methane Coupling on TiO2

Abstract

Au/TiO2 photocatalysts with controlled Au sizes show a rise-to-plateau dependence in photocatalytic methane coupling, reaching 14.9 mmol g−1 h−1 C2+ at 89.1% selectivity near 7.8 nm. Structural and spectroscopic analyses identify face-rich Au on larger particles, reinforced by stronger Au-TiO2 interaction, as the dominant active motif for C–C coupling.

Supplementary files

Article information

Article type
Communication
Submitted
27 Jan 2026
Accepted
06 Mar 2026
First published
07 Mar 2026

Chem. Commun., 2026, Accepted Manuscript

Face-Rich Au Nanoparticles Govern the Size Dependence of Photocatalytic Methane Coupling on TiO2

C. Yuan, Z. Zhang, X. Liu, S. Qin, L. He, T. Yu, X. Yu, B. Gu and W. Fang, Chem. Commun., 2026, Accepted Manuscript , DOI: 10.1039/D6CC00574H

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