| Developing silicalite-1 encapsulated Ni nanoparticles as sintering-/coking-resistant catalysts for dry reforming of methane | |
| Xu, Shanshan1; Slater, Thomas J. A.2; Huang, Hong3; Zhou, Yangtao4; Jiao, Yilai4; Parlett, Christopher M. A.1,2,5,6; Guan, Shaoliang7; Chansai, Sarayute1; Xu, Shaojun5,8; Wang, Xinrui1; Hardacre, Christopher1; Fan, Xiaolei1 | |
| Corresponding Author | Xu, Shanshan(shanshan.xu@manchester.ac.uk) ; Hardacre, Christopher(c.hardacre@manchester.ac.uk) |
| 2022-10-15 | |
| Source Publication | CHEMICAL ENGINEERING JOURNAL
 |
| ISSN | 1385-8947 |
| Volume | 446Pages:12 |
| Abstract | The stability of catalysts in dry reforming of methane (DRM) is a known issue. In this paper an encapsulation strategy has been employed to improve the stability compared with conventional impregnation methods. Herein, nickel nanoparticles encapsulated in silicalite-1 were prepared using a range of methods including post treat-ment, direct hydrothermal and seed-directed methods to investigate the effect of synthesis protocol on the properties of catalysts, such as degree of encapsulation and Ni dispersion, and anti-coking/-sintering perfor-mance in DRM. The Ni@SiO2-S1 catalysts obtained by the seed-directed synthesis presented the full encapsu-lation of Ni NPs by the zeolite framework with small particle sizes (-2.9 nm) and strong metal-support interaction, which could sterically hinder the migration/aggregation of Ni NPs and carbon deposition. There-fore, Ni@SiO2-S1 showed stable CO2/CH4 conversions of 80% and 73%, respectively, with negligible metal sintering and coking deposition (-0.5 wt%) over 28 h, which outperformed the other catalysts prepared. In contrast, the catalysts developed by the post-treatment and ethylenediamine-protected hydrothermal methods showed the co-existence of Ni phase on the internal and external surfaces, i.e. incomplete encapsulation, with large Ni particles, contributing to Ni sintering and coking. The correlation of the synthesis-structure-performance in this study sheds light on the design of coking-/sintering-resistant encapsulated catalysts for DRM. |
| Keyword | Silicalite-1 Encapsulated Ni catalyst Dry reforming of methane Anti-sintering Anti -coking |
| Funding Organization | University of Manchester ; UK Catalysis Hub Consortium ; EPSRC |
| DOI | 10.1016/j.cej.2022.137439 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | University of Manchester ; UK Catalysis Hub Consortium ; EPSRC[EP/R026939/1] ; EPSRC[EP/R026815/1] ; EPSRC[EP/R026645/1] ; EPSRC[EP/R027129/1] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Environmental ; Engineering, Chemical |
| WOS ID | WOS:000833420500001 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/174627 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Xu, Shanshan; Hardacre, Christopher |
| Affiliation | 1.Univ Manchester, Sch Engn, Dept Chem Engn & Analyt Sci, Oxford Rd, Manchester M13 9PL, Lancs, England 2.Diamond Light Source Ltd, Electron Phys Sci Imaging Ctr, Didcot OX11 0DE, Oxon, England 3.Forschungszentrum Julich, Electrochem Proc Engn IEK 14, D-52425 Julich, Germany 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 5.Rutherford Appleton Lab, Res Complex & Harwell, UK Catalysis Hub, Harwell OX11 0FA, Oxon, England 6.Univ Manchester Harwell, Diamond Light Source, Harwell Sci & Innovat Campus, Didcot OX11 0DE, Oxon, England 7.Harwell XPSThe EPSRC Natl Facil Photoelectron Spe, Res Complex & Harwell, Didcot OX11 0FA, Oxon, England 8.Cardiff Univ, Sch Chem, Cardiff Catalysis Inst, Cardiff CF10 3AT, Wales |
| Recommended Citation GB/T 7714 | Xu, Shanshan,Slater, Thomas J. A.,Huang, Hong,et al. Developing silicalite-1 encapsulated Ni nanoparticles as sintering-/coking-resistant catalysts for dry reforming of methane[J]. CHEMICAL ENGINEERING JOURNAL,2022,446:12. |
| APA | Xu, Shanshan.,Slater, Thomas J. A..,Huang, Hong.,Zhou, Yangtao.,Jiao, Yilai.,...&Fan, Xiaolei.(2022).Developing silicalite-1 encapsulated Ni nanoparticles as sintering-/coking-resistant catalysts for dry reforming of methane.CHEMICAL ENGINEERING JOURNAL,446,12. |
| MLA | Xu, Shanshan,et al."Developing silicalite-1 encapsulated Ni nanoparticles as sintering-/coking-resistant catalysts for dry reforming of methane".CHEMICAL ENGINEERING JOURNAL 446(2022):12. |
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