Silver enhanced oxidative coupling of methane over the Mn–Na2WO4/SiO2 catalyst

Abstract

The Mn–Na2WO4/SiO2 catalyst for oxidative coupling of methane (OCM) is highly appealing and promising but its high light-off temperature (>800 °C) hinders its industrial application. Engineering catalysts for efficient catalytic performance is attractive yet challenging. In this study, we demonstrate that the incorporation of small amounts of silver into the Mn–Na2WO4/SiO2 catalyst significantly improves its performance, achieving a C2 yield of up to 20% at 750 °C. Characterization results indicate that silver facilitates O2 activation and promotes C–H bond activation, thereby further enhancing CH4 conversion. The findings offer valuable insights into advancing the design concept of high-performance OCM catalysts.

Graphical abstract: Silver enhanced oxidative coupling of methane over the Mn–Na2WO4/SiO2 catalyst

Supplementary files

Article information

Article type
Paper
Submitted
13 Mar 2025
Accepted
09 May 2025
First published
27 May 2025

Catal. Sci. Technol., 2025, Advance Article

Silver enhanced oxidative coupling of methane over the Mn–Na2WO4/SiO2 catalyst

Y. Zhao, F. Liu, J. Hu, Y. Yang, J. Wu, S. Zou and J. Fan, Catal. Sci. Technol., 2025, Advance Article , DOI: 10.1039/D5CY00314H

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