Developing silicalite-1 encapsulated Ni nanoparticles as sintering-/coking-resistant catalysts for dry reforming of methane
文献类型：期刊论文
| 作者 | Xu, Shanshan8; Slater, Thomas J. A.7; Huang, Hong6; Zhou, Yangtao5; Jiao, Yilai5; Parlett, Christopher M. A.3,4,7,8; Guan, Shaoliang2; Chansai, Sarayute8; Xu, Shaojun1,4; Wang, Xinrui8 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2022-10-15 |
| 卷号 | 446页码:12 |
| ISSN号 | 1385-8947 |
| 关键词 | Silicalite-1 Encapsulated Ni catalyst Dry reforming of methane Anti-sintering Anti -coking |
| DOI | 10.1016/j.cej.2022.137439 |
| 通讯作者 | Xu, Shanshan(shanshan.xu@manchester.ac.uk) ; Hardacre, Christopher(c.hardacre@manchester.ac.uk) |
| 英文摘要 | 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. |
| 资助项目 | University of Manchester ; UK Catalysis Hub Consortium ; EPSRC[EP/R026939/1] ; EPSRC[EP/R026815/1] ; EPSRC[EP/R026645/1] ; EPSRC[EP/R027129/1] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000833420500001 |
| 资助机构 | University of Manchester ; UK Catalysis Hub Consortium ; EPSRC |
| 源URL | [http://ir.imr.ac.cn/handle/321006/174626]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Xu, Shanshan; Hardacre, Christopher |
| 作者单位 | 1.Cardiff Univ, Sch Chem, Cardiff Catalysis Inst, Cardiff CF10 3AT, Wales 2.Harwell XPSThe EPSRC Natl Facil Photoelectron Spe, Res Complex & Harwell, Didcot OX11 0FA, Oxon, England 3.Univ Manchester Harwell, Diamond Light Source, Harwell Sci & Innovat Campus, Didcot OX11 0DE, Oxon, England 4.Rutherford Appleton Lab, Res Complex & Harwell, UK Catalysis Hub, Harwell OX11 0FA, Oxon, England 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 6.Forschungszentrum Julich, Electrochem Proc Engn IEK 14, D-52425 Julich, Germany 7.Diamond Light Source Ltd, Electron Phys Sci Imaging Ctr, Didcot OX11 0DE, Oxon, England 8.Univ Manchester, Sch Engn, Dept Chem Engn & Analyt Sci, Oxford Rd, Manchester M13 9PL, Lancs, England |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：金属研究所
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