dc.contributor.author | Feng, Xiang | |
dc.contributor.author | Sheng, Nan | |
dc.contributor.author | Liu, Yibin | |
dc.contributor.author | Chen, Xiaobo | |
dc.contributor.author | Chen, De | |
dc.contributor.author | Yang, Chaohe | |
dc.contributor.author | Zhou, Xinggui | |
dc.date.accessioned | 2019-04-29T05:35:15Z | |
dc.date.available | 2019-04-29T05:35:15Z | |
dc.date.created | 2017-09-30T23:26:15Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | ACS Catalysis. 2017, 7 (4), 2668-2675. | nb_NO |
dc.identifier.issn | 2155-5435 | |
dc.identifier.uri | http://hdl.handle.net/11250/2595811 | |
dc.description.abstract | It is a challenging task to design efficient Au/Ti-containing catalysts for propene epoxidation with H2 and O2 that simultaneously achieve high catalytic stability and selectivity to propylene oxide (PO). This contribution first describes the synthesis of a nanocrystalline mesoporous titanium silicalite-1 (MTS-1) by dry-gel conversion that employs cheap triblock copolymers as template. Compared with TS-1, MTS-1 has a shortened reactant/product diffusion length as a result of smaller crystal size (<100 nm) and the presence of mesopores (ca. 3 nm). Surprisingly, this designed catalyst shows simultaneously improved PO selectivity over 95% as well as stability over 40 h, much better than the traditional Au/TS-1 catalyst. Moreover, the intrinsic reason for the enhanced performance is elucidated. The better mass transfer ability together with higher hydrophobicity of Au/MTS-1 results in lower coke weight and absence of refractory aromatic coke. In this way, the side reactions and deactivation caused by blocking of micropore are inhibited. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | American Chemical Society | nb_NO |
dc.title | Simultaneously Enhanced Stability and Selectivity for Propene Epoxidation with H2 and O2 on Au Catalysts Supported on Nano-Crystalline Mesoporous TS-1 | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.pagenumber | 2668-2675 | nb_NO |
dc.source.volume | 7 | nb_NO |
dc.source.journal | ACS Catalysis | nb_NO |
dc.source.issue | 4 | nb_NO |
dc.identifier.doi | 10.1021/acscatal.6b03498 | |
dc.identifier.cristin | 1500923 | |
dc.description.localcode | © American Chemical Society 2017. This is the authors accepted and refereed manuscript to the article. | nb_NO |
cristin.unitcode | 194,66,30,0 | |
cristin.unitname | Institutt for kjemisk prosessteknologi | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |