Design of PtZn nanoalloy catalysts for propane dehydrogenation through interface tailoring via atomic layer deposition
| dc.contributor.author | Ingale, Piyush | |
| dc.contributor.author | Knemeyer, Kristian | |
| dc.contributor.author | Preikschas, Phil | |
| dc.contributor.author | Ye, Mengyang | |
| dc.contributor.author | Geske, Michael | |
| dc.contributor.author | Naumann d’Alnoncourt, Raoul | |
| dc.contributor.author | Thomas, Arne | |
| dc.contributor.author | Rosowski, Frank | |
| dc.date.accessioned | 2021-03-11T12:14:10Z | |
| dc.date.available | 2021-03-11T12:14:10Z | |
| dc.date.issued | 2020-11-18 | |
| dc.description.abstract | Supported Pt nanoparticles are widely used for the catalytic dehydrogenation of propane to propene. Monometallic Pt catalysts are subject to fast deactivation. A successful strategy for stabilization is alloying Pt with a second metal. In this study, we present a novel approach for the precise formation of bimetallic nanoparticles via tailoring of the interface between metal nanoparticles and the support. An ultra-thin functional layer of ZnO is deposited via atomic layer deposition on SiO2. The supported Pt nanoparticles undergo a phase transformation and form Pt1Zn1 alloy nanoparticles under reductive thermal treatment. The resulting Pt1Zn1 catalyst showed a high and stable selectivity to propene over 12 hours of time on stream. The activity of the Pt1Zn1 catalyst was 1.5 times higher than that of a catalyst of the same composition prepared by incipient wetness impregnation. The nanoalloy formation causes electronic and geometric modification of Pt which reduces side reactions and leads to a stable and active propane dehydrogenation catalyst. | en |
| dc.description.sponsorship | TU Berlin, Open-Access-Mittel – 2020 | en |
| dc.identifier.eissn | 2044-4761 | |
| dc.identifier.issn | 2044-4753 | |
| dc.identifier.uri | https://depositonce.tu-berlin.de/handle/11303/12789 | |
| dc.identifier.uri | http://dx.doi.org/10.14279/depositonce-11589 | |
| dc.language.iso | en | en |
| dc.relation.ispartof | 10.14279/depositonce-12409 | en |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc/3.0/ | en |
| dc.subject.ddc | 540 Chemie und zugeordnete Wissenschaften | de |
| dc.subject.other | dehydrogenation | en |
| dc.subject.other | propane | en |
| dc.subject.other | Pt catalysts | en |
| dc.title | Design of PtZn nanoalloy catalysts for propane dehydrogenation through interface tailoring via atomic layer deposition | en |
| dc.type | Article | en |
| dc.type.version | publishedVersion | en |
| dcterms.bibliographicCitation.doi | 10.1039/D0CY01528H | en |
| dcterms.bibliographicCitation.issue | 2 | en |
| dcterms.bibliographicCitation.journaltitle | Catalysis Science and Technology | en |
| dcterms.bibliographicCitation.originalpublishername | Royal Society of Chemistry | en |
| dcterms.bibliographicCitation.originalpublisherplace | London | en |
| dcterms.bibliographicCitation.pageend | 493 | en |
| dcterms.bibliographicCitation.pagestart | 484 | en |
| dcterms.bibliographicCitation.volume | 11 | en |
| tub.accessrights.dnb | free | en |
| tub.affiliation | Verbundforschung::Exzellenzcluster (EXC)::BasCat Joint Lab | de |
| tub.affiliation.faculty | Verbundforschung | de |
| tub.affiliation.group | BasCat Joint Lab | de |
| tub.affiliation.institute | Exzellenzcluster (EXC) | de |
| tub.publisher.universityorinstitution | Technische Universität Berlin | en |