%O This work is licensed under a Creative Commons Attribution 4.0 International License.
%X In this study, we investigate the effect of thermal treatment/calcination on the stability and activity of a Na-Mn-W/SiO2 catalyst for the oxidative coupling of methane reaction. The catalyst performance and characterisation measurements suggest that the W species are directly involved in the catalyst active site responsible for CH4 conversion. Under operating conditions, the active components, present in the form of Na-W-O-Mn molten state, are highly mobile and volatile. By varying the parameters of the calcination protocol, it was shown that these molten components can be partially stabilised, resulting in a catalyst with lower activity (due to loss of surface area) but higher stability even for long duration OCM reaction experiments.
%L discovery10098199
%J Faraday Discussions
%I Royal Society of Chemistry (RSC)
%D 2021
%P 176-196
%V 229
%A D Matras
%A A Vamvakeros
%A S Jacques
%A N Grosjean
%A B Rollins
%A S Poulston
%A GBG Stenning
%A H Godini
%A J Drnec
%A RJ Cernik
%A AM Beale
%T Effect of thermal treatment on the stability of Na-Mn-W/SiO2 Catalyst for the Oxidative Coupling of Methane