| A structured catalyst with high dispersity of Au species based on hollow SiC foam with porous walls for acetylene hydrochlorination | |
| Wang, Peng1,2; Yang, Xiaodan2; Zhang, Ye1,2; Gao, Yong2; Zhang, Jinsong2 | |
| Corresponding Author | Zhang, Jinsong(jszhang@imr.ac.cn) |
| 2021-06-11 | |
| Source Publication | RSC ADVANCES
 |
| Volume | 11Issue:32Pages:19819-19826 |
| Abstract | It is essential to improve the catalytic stability of Au-based catalysts for acetylene hydrochlorination. In this study, a novel hollow SiC foam with porous walls (HSFp) is proposed to modify the Au catalyst distribution on the foam-based structured catalyst. The scanning electron microscopy and 3D X-ray tomography results showed that the hollow structure and the porous ceramic wall of HSFp were successfully obtained. An Au/AC/HSF structured catalyst was prepared by the slurry-coating and impregnation method. Then the effects of the wall pore structure of HSFp on the distribution of Au species and the stability of the catalyst were studied by comparison with a hollow SiC foam with compact walls (HSFc). The HSFp with 3D interconnected hollow channel structure was demonstrated to have a promotion effect on the reaction stability due to its ability to refine the catalyst particles during the impregnation and drying processes. The result indicates that the time on stream of acetylene conversion above 90% over the Au/AC/HSFp structured catalyst reaches about 380 h at an acetylene gaseous hourly space velocity of 130 h(-1), which is much longer than that of the Au/AC/HSFc. In addition, a bidirectional diffusion effect that can enhance the catalyst distribution by the porous wall of HSF was proposed in this paper. This may have positive significance in the field of preparation of structured catalysts. |
| Funding Organization | Shenyang National Laboratory for Materials Science (SYNL) Program for Youth Talent |
| DOI | 10.1039/d1ra02533c |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Shenyang National Laboratory for Materials Science (SYNL) Program for Youth Talent[L2020F38] |
| WOS Research Area | Chemistry |
| WOS Subject | Chemistry, Multidisciplinary |
| WOS ID | WOS:000660243300051 |
| Publisher | ROYAL SOC CHEMISTRY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/160521 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, Jinsong |
| Affiliation | 1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Peng,Yang, Xiaodan,Zhang, Ye,et al. A structured catalyst with high dispersity of Au species based on hollow SiC foam with porous walls for acetylene hydrochlorination[J]. RSC ADVANCES,2021,11(32):19819-19826. |
| APA | Wang, Peng,Yang, Xiaodan,Zhang, Ye,Gao, Yong,&Zhang, Jinsong.(2021).A structured catalyst with high dispersity of Au species based on hollow SiC foam with porous walls for acetylene hydrochlorination.RSC ADVANCES,11(32),19819-19826. |
| MLA | Wang, Peng,et al."A structured catalyst with high dispersity of Au species based on hollow SiC foam with porous walls for acetylene hydrochlorination".RSC ADVANCES 11.32(2021):19819-19826. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment