dc.contributor.author | Chen, Wenyao | |
dc.contributor.author | Fu, Wenzhao | |
dc.contributor.author | Qian, Gang | |
dc.contributor.author | Zhang, Bingsen | |
dc.contributor.author | Chen, De | |
dc.contributor.author | Duan, Xuezhi | |
dc.contributor.author | Zhou, Xinggui | |
dc.date.accessioned | 2021-01-25T11:09:09Z | |
dc.date.available | 2021-01-25T11:09:09Z | |
dc.date.created | 2021-01-12T14:13:02Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | iScience. 2020, 23 (3), . | en_US |
dc.identifier.issn | 2589-0042 | |
dc.identifier.uri | https://hdl.handle.net/11250/2724507 | |
dc.description.abstract | Development of synergistic heterogeneous catalysts with active sites working cooperatively has been a pursuit of chemists. Herein, we report for the first time the fabrication and manipulation of Pt-WO3 dual-active-sites to boost hydrogen generation from ammonia borane. A combination of DFT calculations, structural characterization, and kinetic (isotopic) analysis reveals that Pt and WO3 act as the active sites for ammonia borane and H2O activation, respectively. A trade-off between the promoting effect of WO3 and the negative effect of decreased Pt binding energy contributes to a volcano-shaped activity, and Pt/CNT-5W delivers a 4-fold increased activity of 710.1 molH2·molPt−1·min−1. Moreover, WO3 is suggested to simultaneously act as the sacrificial site that can divert B-containing by-products away from Pt sites against deactivation, yielding an increase from 24% to 68% of the initial activity after five cycles. The strategy demonstrated here could shed a new light on the design and manipulation of dual-active-site catalysts. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Synergistic Pt-WO3 Dual Active Sites to Boost Hydrogen Production from Ammonia Borane | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.pagenumber | 0 | en_US |
dc.source.volume | 23 | en_US |
dc.source.journal | iScience | en_US |
dc.source.issue | 3 | en_US |
dc.identifier.doi | 10.1016/j.isci.2020.100922 | |
dc.identifier.cristin | 1869899 | |
dc.description.localcode | This is an open access article distributed under the terms of the Creative Commons CC-BY license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | en_US |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |