Crystal Phase Engineering of Cobalt‐Based Catalyst for Switching CO2 Hydrogenation Selectivity From CH4 to CO.
Saved in:
| Title: | Crystal Phase Engineering of Cobalt‐Based Catalyst for Switching CO |
|---|---|
| Authors: | Jin, Shuo1,2 (AUTHOR), Li, Jingru1,2 (AUTHOR), Shang, Longmei1,2 (AUTHOR) shanglm@hqu.edu.cn, Cai, Dongren1 (AUTHOR) 15506@hqu.edu.cn, Zhan, Guowu1,2 (AUTHOR) gwzhan@hqu.edu.cn |
| Source: | ChemCatChem. 4/14/2026, Vol. 18 Issue 7, p1-9. 9p. |
| Subjects: | Cobalt catalysts, Catalyst selectivity, Water gas shift reactions, Catalytic hydrogenation, Catalysts, Oxygen vacancy, Crystal lattices |
| Abstract: | Altering the inherent selectivity of catalysts toward the C1 product is of great significance for enriching the selection of CO2 directional conversion. Herein, we demonstrate that regulating the crystal phase of cobalt (Co)‐based catalysts enables a dramatic shift from methane (CH4) to carbon monoxide (CO). At 320°C and ambient pressure, the Co with a face‐centered cubic structure (FCC‐Co) predominantly yields CH4 in CO2 hydrogenation, achieving 94% of CH4 selectivity and 53% of CO2 conversion, while the hexagonal close‐packed structure (HCP‐Co) exhibits exceptional selectivity toward CO, with 96% of CO selectivity and 21% of CO2 conversion. Multimodal characterizations reveal that compared to FCC‐Co, the lower content of oxygen vacancies and metallic Co0 over HCP‐Co results in the weak CO2/CO adsorption and insufficient hydrogen dissociation, which suppresses the CO→CH4 step in the CO2 hydrogenation, thereby redirecting product selectivity toward CO rather than CH4. This work highlights crystal phase tailoring of Co‐based catalysts as a viable strategy to regulate product selectivity in CO2 hydrogenation, offering insights for rational catalyst design in RWGS reactions. [ABSTRACT FROM AUTHOR] |
| Copyright of ChemCatChem is the property of Wiley-Blackwell 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 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 192985301 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Crystal Phase Engineering of Cobalt‐Based Catalyst for Switching CO<subscript>2</subscript> Hydrogenation Selectivity From CH<subscript>4</subscript> to CO. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Jin%2C+Shuo%22">Jin, Shuo</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Jingru%22">Li, Jingru</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shang%2C+Longmei%22">Shang, Longmei</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> shanglm@hqu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Cai%2C+Dongren%22">Cai, Dongren</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 15506@hqu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhan%2C+Guowu%22">Zhan, Guowu</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> gwzhan@hqu.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22ChemCatChem%22">ChemCatChem</searchLink>. 4/14/2026, Vol. 18 Issue 7, p1-9. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Cobalt+catalysts%22">Cobalt catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Catalyst+selectivity%22">Catalyst selectivity</searchLink><br /><searchLink fieldCode="DE" term="%22Water+gas+shift+reactions%22">Water gas shift reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Catalytic+hydrogenation%22">Catalytic hydrogenation</searchLink><br /><searchLink fieldCode="DE" term="%22Catalysts%22">Catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Oxygen+vacancy%22">Oxygen vacancy</searchLink><br /><searchLink fieldCode="DE" term="%22Crystal+lattices%22">Crystal lattices</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Altering the inherent selectivity of catalysts toward the C1 product is of great significance for enriching the selection of CO2 directional conversion. Herein, we demonstrate that regulating the crystal phase of cobalt (Co)‐based catalysts enables a dramatic shift from methane (CH4) to carbon monoxide (CO). At 320°C and ambient pressure, the Co with a face‐centered cubic structure (FCC‐Co) predominantly yields CH4 in CO2 hydrogenation, achieving 94% of CH4 selectivity and 53% of CO2 conversion, while the hexagonal close‐packed structure (HCP‐Co) exhibits exceptional selectivity toward CO, with 96% of CO selectivity and 21% of CO2 conversion. Multimodal characterizations reveal that compared to FCC‐Co, the lower content of oxygen vacancies and metallic Co0 over HCP‐Co results in the weak CO2/CO adsorption and insufficient hydrogen dissociation, which suppresses the CO→CH4 step in the CO2 hydrogenation, thereby redirecting product selectivity toward CO rather than CH4. This work highlights crystal phase tailoring of Co‐based catalysts as a viable strategy to regulate product selectivity in CO2 hydrogenation, offering insights for rational catalyst design in RWGS reactions. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of ChemCatChem is the property of Wiley-Blackwell 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.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=192985301 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/cctc.202501850 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 1 Subjects: – SubjectFull: Cobalt catalysts Type: general – SubjectFull: Catalyst selectivity Type: general – SubjectFull: Water gas shift reactions Type: general – SubjectFull: Catalytic hydrogenation Type: general – SubjectFull: Catalysts Type: general – SubjectFull: Oxygen vacancy Type: general – SubjectFull: Crystal lattices Type: general Titles: – TitleFull: Crystal Phase Engineering of Cobalt‐Based Catalyst for Switching CO2 Hydrogenation Selectivity From CH4 to CO. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Jin, Shuo – PersonEntity: Name: NameFull: Li, Jingru – PersonEntity: Name: NameFull: Shang, Longmei – PersonEntity: Name: NameFull: Cai, Dongren – PersonEntity: Name: NameFull: Zhan, Guowu IsPartOfRelationships: – BibEntity: Dates: – D: 14 M: 04 Text: 4/14/2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 18673880 Numbering: – Type: volume Value: 18 – Type: issue Value: 7 Titles: – TitleFull: ChemCatChem Type: main |
| ResultId | 1 |
