What question did this study set out to answer?

The research aims to develop a catalyst that enables the oxidative coupling of methane at low temperatures.

April 10, 2026

Na‐W‐Mn/SiO 2 Catalyst With MnO x Regulated NaWO x Sites for Low‐Temperature Oxidative Coupling of Methane

Key Points

The research aims to develop a catalyst that enables the oxidative coupling of methane at low temperatures.
Utilized Na-W-Mn/SiO2 catalyst with adjusted Mn loading.
Regulated MnO x -Na2WO4 interaction to enhance catalytic performance.
Analyzed catalytic activity and thermal stability.
The catalyst achieved 44.4% CH4 conversion.
C2 selectivity reached 45.9%.
C2 yield was 20.4% at 750°C.

Abstract

The oxidative coupling of methane (OCM) reaction can directly convert CH4 into C2 (ethylene, ethane), which is vital for converting the world's abundant natural gas into valuable chemicals. Na-W-Mn/SiO2 catalyst with high thermal stability and catalytic activity has been widely studied. However, the high temperature required for OCM reaction over Na-W-Mn/SiO2 catalyst has restricted its application. The development of low-temperature OCM catalysts is currently one of the hot topics in research. This study regulated the MnOx-Na2WO4 interaction by adjusting the Mn loading, inducing changes in oxygen species and achieving low-temperature oxidative coupling on traditional Na-W-Mn/SiO2 catalyst. At 750°C, the Na-W-5Mn/SiO2 catalyst achieved a CH4 conversion of 44.4%, C2 selectivity of 45.9%, and a C2 yield of 20.4%.

Na‐W‐Mn/SiO 2 Catalyst With MnO x Regulated NaWO x Sites for Low‐Temperature Oxidative Coupling of Methane

Key Points

Abstract

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