dc.contributor.author | Sheng, Nan | |
dc.contributor.author | Liu, Zhikun | |
dc.contributor.author | Song, Zhaoning | |
dc.contributor.author | Lin, Dong | |
dc.contributor.author | Feng, Xiang | |
dc.contributor.author | Liu, Yibin | |
dc.contributor.author | Chen, Xiaobo | |
dc.contributor.author | Chen, De | |
dc.contributor.author | Zhou, Xinggui | |
dc.contributor.author | Yang, Chaohe | |
dc.date.accessioned | 2019-04-02T09:13:43Z | |
dc.date.available | 2019-04-02T09:13:43Z | |
dc.date.created | 2018-11-22T14:08:38Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Chemical Engineering Journal. 2018, 1-9. | nb_NO |
dc.identifier.issn | 1385-8947 | |
dc.identifier.uri | http://hdl.handle.net/11250/2592869 | |
dc.description.abstract | Designing highly efficient Au/Ti-containing catalysts for propene epoxidation with H2 and O2 harbors tremendous scientific and industrial importance. In this work, novel hydrophobic hierarchical TS-1 (HTS-1) with wormhole-like mesopores (ca. 45 nm) and small crystal size (100 nm) is firstly synthesized by a two-step crystallization method using CTAB as template. Gratifyingly, the Au/HTS-1 catalyst shows simultaneously high PO formation rate of 150 gpoh−1kgCat−1 without any promoter additive, PO selectivity of 90% and impressive stability of 100 h, which are much better than traditional Au/TS-1 catalyst. Furthermore, the intrinsic reason for the enhanced performance is elucidated by multi-techniques such as N2 physisorption, HRTEM, TGA, FT-IR and 29Si NMR. Interestingly, it is found that the coke in 0.10 wt% Au/HTS-1 catalyst partly reside in mesopores, alleviating the deactivation of micropore blocking. Moreover, the enhanced mass transfer ability and higher hydrophobicity of Au/HTS-1 catalyst also lead to reduced coke weight and absence of aromatic coke. | 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 | Enhanced stability for propene epoxidation with H2 and O2 over wormhole-like hierarchical TS-1 supported Au nanocatalyst | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.pagenumber | 1-9 | nb_NO |
dc.source.journal | Chemical Engineering Journal | nb_NO |
dc.identifier.doi | 10.1016/j.cej.2018.09.115 | |
dc.identifier.cristin | 1633805 | |
dc.description.localcode | © 2018. This is the authors’ accepted and refereed manuscript to the article. Locked until 17.9.2020 due to copyright restrictions. 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 | 1 | |