Carbon Recycling through Catalysis: Direct CO2-to-CH4 Conversion as a Pathway to Sustainable Fuels

Carbon Recycling through Catalysis: Direct CO2-to-CH4 Conversion as a Pathway to Sustainable Fuels | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 7 December 2025 V1 Latest version Share on Carbon Recycling through Catalysis: Direct CO2-to-CH4 Conversion as a Pathway to Sustainable Fuels Authors : Jit Satra , Mousumi Biswas , Shankab Phukan , Suraj Goswami , Amit Arora , Ajit Das , Manas Roy , and Somenath Garai 0000-0002-3923-8089 [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.176506943.32136856/v1 226 views 98 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Among the distinct value-added products of the catalyst-mediated CO2 reduction reaction (CO2RR), CH4 stands out as a superior energy carrier on account of its superior combustion heat. However, designing the highly active and selective catalytic system presents an ongoing challenge to circumvent C-C coupling that results in multi-carbon products during CO2 methanation. Consequently, substantial strategic initiatives have been pursued to enhance catalytic activity for proficient CO2 methanation, including structural modulation, catalyst composition, surface modification employing single-site catalysts, defect engineering, cocatalysts, elemental doping, optimising operating conditions, and so on. This present review addresses diverse perceptions and strategies regarding thermocatalytic, electrocatalytic, and photocatalytic hydrogenation of CO2 to CH4, utilizing renewable energy sources as embraced by the scientific fraternity from onset to cutting-edge progress. Furthermore, this review highlights the catalytic mechanisms, kinetics, and the roles of active components, supports, and promoters for CO2 methanation. In addition, the feasibility and economic potential of compressed natural gas (CNG) production through CO2 methanation are critically examined, emphasizing its cost-effectiveness and scalability for large-scale implementation. Finally, this review ruminates on a comprehensive roadmap for advancing catalyst design and optimizing processes to enable economically sustainable CNG production. Supplementary Material File (manuscript.docx) Download 7.97 MB Information & Authors Information Version history V1 Version 1 07 December 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords co2 reduction electrocatalysis methanation photocatalysis thermocatalysis Authors Affiliations Jit Satra Banaras Hindu University View all articles by this author Mousumi Biswas Banaras Hindu University View all articles by this author Shankab Phukan Banaras Hindu University View all articles by this author Suraj Goswami Banaras Hindu University View all articles by this author Amit Arora NIT Hamirpur View all articles by this author Ajit Das Sidho-Kanho-Birsha University View all articles by this author Manas Roy NIT Agartala View all articles by this author Somenath Garai 0000-0002-3923-8089 [email protected] Banaras Hindu University View all articles by this author Metrics & Citations Metrics Article Usage 226 views 98 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Jit Satra, Mousumi Biswas, Shankab Phukan, et al. Carbon Recycling through Catalysis: Direct CO2-to-CH4 Conversion as a Pathway to Sustainable Fuels. Authorea . 07 December 2025. DOI: https://doi.org/10.22541/au.176506943.32136856/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . Format Please select one from the list RIS (ProCite, Reference Manager) EndNote BibTex Medlars RefWorks Direct import Tips for downloading citations document.getElementById('citMgrHelpLink').addEventListener('click', function() { popupHelp(this.href); return false; }); $(".js__slcInclude").on("change", function(e){ if ($(this).val() == 'refworks') $('#direct').prop("checked", false); $('#direct').prop("disabled", ($(this).val() == 'refworks')); }); View Options View options PDF View PDF Figures Tables Media Share Share Share article link Copy Link Copied! Copying failed. 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