Mesoporous silica as a tunable support for dual-function Ba–Ru catalysts: impact on CO2 adsorption and methanation performance.
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| Title: | Mesoporous silica as a tunable support for dual-function Ba–Ru catalysts: impact on CO2 adsorption and methanation performance. |
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| Authors: | Molina-Ramirez, S.1 (AUTHOR), Nava, G.2 (AUTHOR), Finocchio, E.1,3 (AUTHOR) elisabetta.finocchio@unige.it, Lietti, L.2 (AUTHOR), Viganò, L.1 (AUTHOR), Di Virgilio, M.1 (AUTHOR), Di Credico, B.4 (AUTHOR), Scotti, R.4 (AUTHOR), Cristiani, C.1 (AUTHOR), Castoldi, L.1,2 (AUTHOR) lidia.castoldi@polimi.it |
| Source: | Microporous & Mesoporous Materials. Apr2026, Vol. 405, pN.PAG-N.PAG. 1p. |
| Subjects: | Mesoporous silica, Carbon dioxide adsorption, Catalytic activity, Ruthenium catalysts, Carbon sequestration, Barium carbonate |
| Abstract: | The integration of CO 2 capture and catalytic methanation into a single material platform presents an efficient route toward carbon-neutral fuel production. In this work, we investigate silica-supported dual-function materials (DFMs) comprising Ba as the CO 2 storage component and Ru as the methanation catalyst. A series of Ba-Ru/SiO 2 materials were synthesized via incipient wetness impregnation, with varying Ba loadings (16-32 wt%) and promoter deposition sequences. Structural, morphological, and surface analyses (BET, XRD, FT-IR) revealed the formation and thermal evolution of distinct carbonate species as a function of Ba content and preparation method. CO 2 -TPD and H 2 -TPSR experiments demonstrated that the impregnation order influences the nature, strength, and regenerability of the adsorbed carbonate species. Increasing Ba loading enhances CO 2 uptake and promotes the formation of thermally stable bridging carbonates, while Ru positioning affects methanation activity and carbonate reactivity. Compared to alumina-based DFMs, silica-supported systems exhibit distinct carbonate populations and lower-temperature regeneration behavior due to the non-interacting nature of the support. These findings offer new insights into the design of mesoporous DFMs with tunable CO 2 sorption and conversion performance, highlighting the properties of silica as support for integrated carbon capture and utilization. [Display omitted] • Mesoporous silica as support for DFMs to integrate CO 2 capture and methanation. • Ba loading boosts CO 2 storage capacity and carbonate stability. • Ru order impregnation affects methanation activity and carbonate reactivity. • Ru-16Ba/SiO 2 leads to the formation of regenerable carbonates at lower temperatures. [ABSTRACT FROM AUTHOR] |
| Copyright of Microporous & Mesoporous Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 191947622 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Mesoporous silica as a tunable support for dual-function Ba–Ru catalysts: impact on CO2 adsorption and methanation performance. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Molina-Ramirez%2C+S%2E%22">Molina-Ramirez, S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nava%2C+G%2E%22">Nava, G.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Finocchio%2C+E%2E%22">Finocchio, E.</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> elisabetta.finocchio@unige.it</i><br /><searchLink fieldCode="AR" term="%22Lietti%2C+L%2E%22">Lietti, L.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Viganò%2C+L%2E%22">Viganò, L.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Di+Virgilio%2C+M%2E%22">Di Virgilio, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Di+Credico%2C+B%2E%22">Di Credico, B.</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Scotti%2C+R%2E%22">Scotti, R.</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cristiani%2C+C%2E%22">Cristiani, C.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Castoldi%2C+L%2E%22">Castoldi, L.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> lidia.castoldi@polimi.it</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Microporous+%26+Mesoporous+Materials%22">Microporous & Mesoporous Materials</searchLink>. Apr2026, Vol. 405, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Mesoporous+silica%22">Mesoporous silica</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+dioxide+adsorption%22">Carbon dioxide adsorption</searchLink><br /><searchLink fieldCode="DE" term="%22Catalytic+activity%22">Catalytic activity</searchLink><br /><searchLink fieldCode="DE" term="%22Ruthenium+catalysts%22">Ruthenium catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+sequestration%22">Carbon sequestration</searchLink><br /><searchLink fieldCode="DE" term="%22Barium+carbonate%22">Barium carbonate</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The integration of CO 2 capture and catalytic methanation into a single material platform presents an efficient route toward carbon-neutral fuel production. In this work, we investigate silica-supported dual-function materials (DFMs) comprising Ba as the CO 2 storage component and Ru as the methanation catalyst. A series of Ba-Ru/SiO 2 materials were synthesized via incipient wetness impregnation, with varying Ba loadings (16-32 wt%) and promoter deposition sequences. Structural, morphological, and surface analyses (BET, XRD, FT-IR) revealed the formation and thermal evolution of distinct carbonate species as a function of Ba content and preparation method. CO 2 -TPD and H 2 -TPSR experiments demonstrated that the impregnation order influences the nature, strength, and regenerability of the adsorbed carbonate species. Increasing Ba loading enhances CO 2 uptake and promotes the formation of thermally stable bridging carbonates, while Ru positioning affects methanation activity and carbonate reactivity. Compared to alumina-based DFMs, silica-supported systems exhibit distinct carbonate populations and lower-temperature regeneration behavior due to the non-interacting nature of the support. These findings offer new insights into the design of mesoporous DFMs with tunable CO 2 sorption and conversion performance, highlighting the properties of silica as support for integrated carbon capture and utilization. [Display omitted] • Mesoporous silica as support for DFMs to integrate CO 2 capture and methanation. • Ba loading boosts CO 2 storage capacity and carbonate stability. • Ru order impregnation affects methanation activity and carbonate reactivity. • Ru-16Ba/SiO 2 leads to the formation of regenerable carbonates at lower temperatures. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Microporous & Mesoporous Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.micromeso.2026.114080 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Mesoporous silica Type: general – SubjectFull: Carbon dioxide adsorption Type: general – SubjectFull: Catalytic activity Type: general – SubjectFull: Ruthenium catalysts Type: general – SubjectFull: Carbon sequestration Type: general – SubjectFull: Barium carbonate Type: general Titles: – TitleFull: Mesoporous silica as a tunable support for dual-function Ba–Ru catalysts: impact on CO2 adsorption and methanation performance. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Molina-Ramirez, S. – PersonEntity: Name: NameFull: Nava, G. – PersonEntity: Name: NameFull: Finocchio, E. – PersonEntity: Name: NameFull: Lietti, L. – PersonEntity: Name: NameFull: Viganò, L. – PersonEntity: Name: NameFull: Di Virgilio, M. – PersonEntity: Name: NameFull: Di Credico, B. – PersonEntity: Name: NameFull: Scotti, R. – PersonEntity: Name: NameFull: Cristiani, C. – PersonEntity: Name: NameFull: Castoldi, L. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 13871811 Numbering: – Type: volume Value: 405 Titles: – TitleFull: Microporous & Mesoporous Materials Type: main |
| ResultId | 1 |
