Effect of hydroxyl and Mo doping on activity and carbon deposition resistance of hydroxyapatite supported NixMoy catalyst for syngas production via DRM reaction.
Saved in:
| Title: | Effect of hydroxyl and Mo doping on activity and carbon deposition resistance of hydroxyapatite supported NixMoy catalyst for syngas production via DRM reaction. |
|---|---|
| Authors: | Tang, Jiaming1 (AUTHOR), Meng, Junguang1,2 (AUTHOR) mengjunguang@njnu.edu.cn, Pan, Wei1 (AUTHOR), Gu, Tingting3 (AUTHOR), Zhang, Qian2 (AUTHOR), Zhang, Jubing1 (AUTHOR), Wang, Xinye1,4 (AUTHOR), Bu, Changsheng1 (AUTHOR), Piao, Guilin1 (AUTHOR) |
| Source: | International Journal of Hydrogen Energy. Jun2023, Vol. 48 Issue 50, p19033-19045. 13p. |
| Subjects: | Catalytic doping, Catalysts, Catalytic activity, Doping agents (Chemistry), Synthesis gas, Steam reforming, Hydroxyapatite coating |
| Abstract: | The doping of the second metal Mo is expected to further enhance the carbon deposition resistance of Ni-based catalysts for syngas production via dry reforming of methane (DRM). In this study, the hydroxyapatite (HAP) was used as the support and a small Mo dosage was doped in the Ni-based catalysts to investigate the effect of intrinsic hydroxyl and Mo doping on the catalytic activity and carbon deposition resistance in DRM reaction. The catalyst characterization results show that both Ni and Mo are doped into the HAP structure with relatively uniform dispersion. The basic site strength of Ni4Mo0.2-HAP catalyst containing Mo is significantly higher than that of without Mo. The Mo dopant significantly improves the initial catalytic activity, but has minimal effect on the stability enhancement. Whether the catalyst is pre-reduced or not is crucial to the initial activity of the DRM reaction, the non-pre-reduced catalysts will go through a "self-activation" stage at the beginning of the reaction, where the "hydroxyl group" are proved to play as an "oxygen supply" for the partial oxidation of CH 4 or the oxidation of the carbon deposition in the initial stage. Only trace amount of carbon deposition is found after 100 h of DRM reaction on Ni3Mo0.2-HAP catalyst. The NiMo-HAP catalysts exhibit excellent initial activity and resistance to carbon deposition due to the synergistic effect of Ni–Mo alloy and hydroxyl groups in the hydroxyapatite support. [Display omitted] • The doping of Mo improved the initial activity of the NiMo-HAP catalyst. • NiMo-HAP catalysts exhibited enhanced carbon deposition resistance (during 100 h DRM reaction). • Hydroxyl groups and NiMo alloys synergistically contributed to the DRM catalytic activity and stability. • NiMo-HAP maintained structural stability after 100 h DRM reaction. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science 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: 163868156 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Effect of hydroxyl and Mo doping on activity and carbon deposition resistance of hydroxyapatite supported NixMoy catalyst for syngas production via DRM reaction. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Tang%2C+Jiaming%22">Tang, Jiaming</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Meng%2C+Junguang%22">Meng, Junguang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> mengjunguang@njnu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Pan%2C+Wei%22">Pan, Wei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gu%2C+Tingting%22">Gu, Tingting</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Qian%22">Zhang, Qian</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Jubing%22">Zhang, Jubing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Xinye%22">Wang, Xinye</searchLink><relatesTo>1,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bu%2C+Changsheng%22">Bu, Changsheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Piao%2C+Guilin%22">Piao, Guilin</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Hydrogen+Energy%22">International Journal of Hydrogen Energy</searchLink>. Jun2023, Vol. 48 Issue 50, p19033-19045. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Catalytic+doping%22">Catalytic doping</searchLink><br /><searchLink fieldCode="DE" term="%22Catalysts%22">Catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Catalytic+activity%22">Catalytic activity</searchLink><br /><searchLink fieldCode="DE" term="%22Doping+agents+%28Chemistry%29%22">Doping agents (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Synthesis+gas%22">Synthesis gas</searchLink><br /><searchLink fieldCode="DE" term="%22Steam+reforming%22">Steam reforming</searchLink><br /><searchLink fieldCode="DE" term="%22Hydroxyapatite+coating%22">Hydroxyapatite coating</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The doping of the second metal Mo is expected to further enhance the carbon deposition resistance of Ni-based catalysts for syngas production via dry reforming of methane (DRM). In this study, the hydroxyapatite (HAP) was used as the support and a small Mo dosage was doped in the Ni-based catalysts to investigate the effect of intrinsic hydroxyl and Mo doping on the catalytic activity and carbon deposition resistance in DRM reaction. The catalyst characterization results show that both Ni and Mo are doped into the HAP structure with relatively uniform dispersion. The basic site strength of Ni4Mo0.2-HAP catalyst containing Mo is significantly higher than that of without Mo. The Mo dopant significantly improves the initial catalytic activity, but has minimal effect on the stability enhancement. Whether the catalyst is pre-reduced or not is crucial to the initial activity of the DRM reaction, the non-pre-reduced catalysts will go through a "self-activation" stage at the beginning of the reaction, where the "hydroxyl group" are proved to play as an "oxygen supply" for the partial oxidation of CH 4 or the oxidation of the carbon deposition in the initial stage. Only trace amount of carbon deposition is found after 100 h of DRM reaction on Ni3Mo0.2-HAP catalyst. The NiMo-HAP catalysts exhibit excellent initial activity and resistance to carbon deposition due to the synergistic effect of Ni–Mo alloy and hydroxyl groups in the hydroxyapatite support. [Display omitted] • The doping of Mo improved the initial activity of the NiMo-HAP catalyst. • NiMo-HAP catalysts exhibited enhanced carbon deposition resistance (during 100 h DRM reaction). • Hydroxyl groups and NiMo alloys synergistically contributed to the DRM catalytic activity and stability. • NiMo-HAP maintained structural stability after 100 h DRM reaction. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science 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=163868156 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.ijhydene.2023.01.370 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 19033 Subjects: – SubjectFull: Catalytic doping Type: general – SubjectFull: Catalysts Type: general – SubjectFull: Catalytic activity Type: general – SubjectFull: Doping agents (Chemistry) Type: general – SubjectFull: Synthesis gas Type: general – SubjectFull: Steam reforming Type: general – SubjectFull: Hydroxyapatite coating Type: general Titles: – TitleFull: Effect of hydroxyl and Mo doping on activity and carbon deposition resistance of hydroxyapatite supported NixMoy catalyst for syngas production via DRM reaction. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Tang, Jiaming – PersonEntity: Name: NameFull: Meng, Junguang – PersonEntity: Name: NameFull: Pan, Wei – PersonEntity: Name: NameFull: Gu, Tingting – PersonEntity: Name: NameFull: Zhang, Qian – PersonEntity: Name: NameFull: Zhang, Jubing – PersonEntity: Name: NameFull: Wang, Xinye – PersonEntity: Name: NameFull: Bu, Changsheng – PersonEntity: Name: NameFull: Piao, Guilin IsPartOfRelationships: – BibEntity: Dates: – D: 12 M: 06 Text: Jun2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 03603199 Numbering: – Type: volume Value: 48 – Type: issue Value: 50 Titles: – TitleFull: International Journal of Hydrogen Energy Type: main |
| ResultId | 1 |
