Thermally stable single atom Pt/m-Al2O3 for selective hydrogenation and CO oxidation

Handle URI:
http://hdl.handle.net/10754/625290
Title:
Thermally stable single atom Pt/m-Al2O3 for selective hydrogenation and CO oxidation
Authors:
Zhang, Zailei; Zhu, Yihan; Asakura, Hiroyuki; Zhang, Bin; Zhang, Jiaguang ( 0000-0001-7238-4021 ) ; Zhou, Maoxiang; Han, Yu ( 0000-0003-1462-1118 ) ; Tanaka, Tsunehiro; Wang, Aiqin; Zhang, Tao; Yan, Ning ( 0000-0002-1877-9206 )
Abstract:
Single-atom metal catalysts offer a promising way to utilize precious noble metal elements more effectively, provided that they are catalytically active and sufficiently stable. Herein, we report a synthetic strategy for Pt single-atom catalysts with outstanding stability in several reactions under demanding conditions. The Pt atoms are firmly anchored in the internal surface of mesoporous Al2O3, likely stabilized by coordinatively unsaturated pentahedral Al3+ centres. The catalyst keeps its structural integrity and excellent performance for the selective hydrogenation of 1,3-butadiene after exposure to a reductive atmosphere at 200 °C for 24 h. Compared to commercial Pt nanoparticle catalyst on Al2O3 and control samples, this system exhibits significantly enhanced stability and performance for n-hexane hydro-reforming at 550 °C for 48 h, although agglomeration of Pt single-atoms into clusters is observed after reaction. In CO oxidation, the Pt single-atom identity was fully maintained after 60 cycles between 100 and 400 °C over a one-month period.
KAUST Department:
Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; KAUST Catalysis Center (KCC)
Citation:
Zhang Z, Zhu Y, Asakura H, Zhang B, Zhang J, et al. (2017) Thermally stable single atom Pt/m-Al2O3 for selective hydrogenation and CO oxidation. Nature Communications 8: 16100. Available: http://dx.doi.org/10.1038/ncomms16100.
Publisher:
Springer Nature
Journal:
Nature Communications
Issue Date:
27-Jul-2017
DOI:
10.1038/ncomms16100
Type:
Article
ISSN:
2041-1723
Sponsors:
We thank the National University of Singapore Young Investigator Award (WBS: R-279-000-464-133) for financial support. HAADF-STEM measurement at King Abdullah University of Science and Technology, Saudi Arabia; 27Al MAS NMR measurements were carried out at Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China; the XAS measurements were performed at the BL5S2 at the Aichi Synchrotron Radiation Center under the approval of Aichi Science & Technology Foundation, Aichi, Japan (Proposal No. 201506061) and at the BL01B1 at the SPring-8 (Japan Synchrotron Radiation Research Institute, Hyogo, Japan) under the approval of JASRI (Proposal No. 2016A1025). The XAS measurement at the AichiSR was financially supported by the Nagoya University Synchrotron Radiation Research Center.
Additional Links:
https://www.nature.com/articles/ncomms16100; https://www.nature.com/articles/ncomms16100
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorZhang, Zaileien
dc.contributor.authorZhu, Yihanen
dc.contributor.authorAsakura, Hiroyukien
dc.contributor.authorZhang, Binen
dc.contributor.authorZhang, Jiaguangen
dc.contributor.authorZhou, Maoxiangen
dc.contributor.authorHan, Yuen
dc.contributor.authorTanaka, Tsunehiroen
dc.contributor.authorWang, Aiqinen
dc.contributor.authorZhang, Taoen
dc.contributor.authorYan, Ningen
dc.date.accessioned2017-08-03T11:56:25Z-
dc.date.available2017-08-03T11:56:25Z-
dc.date.issued2017-07-27en
dc.identifier.citationZhang Z, Zhu Y, Asakura H, Zhang B, Zhang J, et al. (2017) Thermally stable single atom Pt/m-Al2O3 for selective hydrogenation and CO oxidation. Nature Communications 8: 16100. Available: http://dx.doi.org/10.1038/ncomms16100.en
dc.identifier.issn2041-1723en
dc.identifier.doi10.1038/ncomms16100en
dc.identifier.urihttp://hdl.handle.net/10754/625290-
dc.description.abstractSingle-atom metal catalysts offer a promising way to utilize precious noble metal elements more effectively, provided that they are catalytically active and sufficiently stable. Herein, we report a synthetic strategy for Pt single-atom catalysts with outstanding stability in several reactions under demanding conditions. The Pt atoms are firmly anchored in the internal surface of mesoporous Al2O3, likely stabilized by coordinatively unsaturated pentahedral Al3+ centres. The catalyst keeps its structural integrity and excellent performance for the selective hydrogenation of 1,3-butadiene after exposure to a reductive atmosphere at 200 °C for 24 h. Compared to commercial Pt nanoparticle catalyst on Al2O3 and control samples, this system exhibits significantly enhanced stability and performance for n-hexane hydro-reforming at 550 °C for 48 h, although agglomeration of Pt single-atoms into clusters is observed after reaction. In CO oxidation, the Pt single-atom identity was fully maintained after 60 cycles between 100 and 400 °C over a one-month period.en
dc.description.sponsorshipWe thank the National University of Singapore Young Investigator Award (WBS: R-279-000-464-133) for financial support. HAADF-STEM measurement at King Abdullah University of Science and Technology, Saudi Arabia; 27Al MAS NMR measurements were carried out at Dalian Institute of Chemical Physics, Chinese Academy of Sciences, China; the XAS measurements were performed at the BL5S2 at the Aichi Synchrotron Radiation Center under the approval of Aichi Science & Technology Foundation, Aichi, Japan (Proposal No. 201506061) and at the BL01B1 at the SPring-8 (Japan Synchrotron Radiation Research Institute, Hyogo, Japan) under the approval of JASRI (Proposal No. 2016A1025). The XAS measurement at the AichiSR was financially supported by the Nagoya University Synchrotron Radiation Research Center.en
dc.publisherSpringer Natureen
dc.relation.urlhttps://www.nature.com/articles/ncomms16100en
dc.relation.urlhttps://www.nature.com/articles/ncomms16100en
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleThermally stable single atom Pt/m-Al2O3 for selective hydrogenation and CO oxidationen
dc.typeArticleen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.identifier.journalNature Communicationsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585 Singapore, Singapore.en
dc.contributor.institutionElements Strategy Initiative for Catalysts &Batteries (ESICB), Kyoto University, Kyoto 615-8245, Japan.en
dc.contributor.institutionState Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.en
kaust.authorZhu, Yihanen
kaust.authorHan, Yuen
kaust.authorHan, Yuen
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