Natural Kaolin derived Ruthenium supported Nanoporous Geopolymer: a sustainable catalyst for CO2 Methanation

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dc.contributor.author Kumar, Mukesh
dc.contributor.author Sharma, Sudhanshu
dc.coverage.spatial United Kingdom
dc.date.accessioned 2025-06-12T06:23:41Z
dc.date.available 2025-06-12T06:23:41Z
dc.date.issued 2025-05
dc.identifier.citation Kumar, Mukesh and Sharma, Sudhanshu, "Natural Kaolin derived Ruthenium supported Nanoporous Geopolymer: a sustainable catalyst for CO2 Methanation", Catalysis Science & Technology, DOI: 10.1039/D5CY00021A, May 2025.
dc.identifier.issn 2044-4753
dc.identifier.issn 2044-4761
dc.identifier.uri https://doi.org/10.1039/D5CY00021A
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/11517
dc.description.abstract Addressing the serious concern of excessive CO2 emission, CO2 methanation reaction for converting environmental CO2 to methane is a suitable way. Methane can be used not only as a fuel but also as a hydrogen carrier. In this study, the geopolymer is explored as a support which is synthesized using natural kaolin (GNK). This geopolymer support is used to disperse ruthenium (Ru) nanoparticles by a single-step hydrazine reduction method. The catalyst is characterized using various surface and bulk techniques. Further, the catalytic performance of ruthenium-supported Geopolymer (Ru/GNK) for CO2 methanation process is explored with varying Ru % loading and with varying flow rates. Catalyst stability is also checked for 20 h by time on stream isothermal experiment. The spent catalyst is characterized by O2-temperature programmed oxidation (O2-TPO) and X-ray photoelectron spectroscopy. Overall, the catalyst proved to be cost-effective and free from pretreatment requirement apart from the superior activity, high selectivity, and good stability.
dc.description.statementofresponsibility by Mukesh Kumar and Sudhanshu Sharma
dc.language.iso en_US
dc.publisher Royal Society of Chemistry
dc.title Natural Kaolin derived Ruthenium supported Nanoporous Geopolymer: a sustainable catalyst for CO2 Methanation
dc.type Article
dc.relation.journal Catalysis Science & Technology


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