%0 Journal Article
%@ 1364-5498
%A Matras, D
%A Vamvakeros, A
%A Jacques, S
%A Grosjean, N
%A Rollins, B
%A Poulston, S
%A Stenning, GBG
%A Godini, H
%A Drnec, J
%A Cernik, RJ
%A Beale, AM
%D 2021
%F discovery:10098199
%I Royal Society of Chemistry (RSC)
%J Faraday Discussions
%P 176-196
%T Effect of thermal treatment on the stability of Na-Mn-W/SiO2 Catalyst for the Oxidative Coupling of Methane
%U https://discovery.ucl.ac.uk/id/eprint/10098199/
%V 229
%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.
%Z This work is licensed under a Creative Commons Attribution 4.0 International License.