| Full text | |
| Author(s): |
Thyssen, Vivian Vazquez
[1]
;
Vilela, Vanessa Bezerra
[1]
;
de Florio, Daniel Zanetti
[2]
;
Ferlauto, Andre Santarosa
[2]
;
Fonseca, Fabio Coral
[1]
Total Authors: 5
|
| Affiliation: | [1] Nucl & Energy Res Inst IPEN CNEN, BR-05508000 Sao Paulo, SP - Brazil
[2] Fed Univ ABC UFABC, Ctr Engn Modeling & Appl Social Sci, BR-09210580 Santo Andre, SP - Brazil
Total Affiliations: 2
|
| Document type: | Review article |
| Source: | CHEMICAL REVIEWS; DEC 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
Direct conversion of methane to C2 compounds by oxidative and nonoxidative coupling reactions has been intensively studied in the past four decades; however, because these reactions have intrinsic severe thermodynamic constraints, they have not become viable industrially. Recently, with the increasing availability of inexpensive ``green electrons{''} coming from renewable sources, electrochemical technologies are gaining momentum for reactions that have been challenging for more conventional catalysis. Using solid-state membranes to control the reacting species and separate products in a single step is a crucial advantage. Devices using ionic or mixed ionic-electronic conductors can be explored for methane coupling reactions with great potential to increase selectivity. Although these technologies are still in the early scaling stages, they offer a sustainable path for the utilization of methane and benefit from the advances in both solid oxide fuel cells and electrolyzers. This review identifies promising developments for solid-state methane conversion reactors by assessing multifunctional layers with microstructural control; combining solid electrolytes (proton and oxygen ion conductors) with active and selective electrodes/catalysts; applying more efficient reactor designs; understanding the reaction/degradation mechanisms; defining standards for performance evaluation; and carrying techno-economic analysis. (AU) | |
| FAPESP's process: | 17/11937-4 - A sustainable path to methane conversion by advanced electrochemical technologies |
| Grantee: | Fabio Coral Fonseca |
| Support Opportunities: | Research Grants - Research Centers in Engineering Program |