dc.contributor.author | Feng, Xiang | |
dc.contributor.author | Duan, XueZhi | |
dc.contributor.author | Cheng, Hong-ye | |
dc.contributor.author | Qian, Gang | |
dc.contributor.author | Chen, De | |
dc.contributor.author | Yuan, Wei-Kang | |
dc.contributor.author | Zhou, Xing-Gui | |
dc.date.accessioned | 2019-04-29T05:38:12Z | |
dc.date.available | 2019-04-29T05:38:12Z | |
dc.date.created | 2015-07-15T14:22:08Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | Journal of Catalysis. 2015, 325 128-135. | nb_NO |
dc.identifier.issn | 0021-9517 | |
dc.identifier.uri | http://hdl.handle.net/11250/2595813 | |
dc.description.abstract | Au/TS-1 catalyst prepared by deposition–precipitation method is efficient for propene epoxidation with H2/O2, and its performance is significantly affected by the preparation parameters and the properties of support. In this work, effects of the slurry aging time and Si/Ti ratio of support on the location of Au nanoparticles inside or outside the micropores of TS-1 supports are examined by multi-techniques such as in situ characterization and molecular dynamics simulation, and the as-obtained catalysts are tested for propene epoxidation. It is found that longer slurry aging time facilitates the evolution of Au complex into smaller sized species which is easier to locate inside the micropores. Accordingly, the as-reduced catalyst has more tiny Au nanoparticles that are extremely active inside micropores and shows higher initial PO formation rate (gPO h−1 gAu−1). In addition, high Si/Ti ratio of TS-1 also favors the deposition of Au nanoparticles inside micropores, resulting in higher initial activity but lower stable activity. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Elsevier | nb_NO |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no | * |
dc.title | Au/TS-1 catalyst prepared by deposition–precipitation method for propene epoxidation with H2/O2: Insights into the effects of slurry aging time and Si/Ti molar ratio | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.pagenumber | 128-135 | nb_NO |
dc.source.volume | 325 | nb_NO |
dc.source.journal | Journal of Catalysis | nb_NO |
dc.identifier.doi | 10.1016/j.jcat.2015.02.007 | |
dc.identifier.cristin | 1254024 | |
dc.description.localcode | © 2015. This is the authors’ accepted and refereed manuscript to the article. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | nb_NO |
cristin.unitcode | 194,66,30,0 | |
cristin.unitname | Institutt for kjemisk prosessteknologi | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 2 | |