Encapsulation of Ru Complexes into Poly(ionic liquid) Enables the Methanation of CO2under Mild Conditions
文献类型：期刊论文
| 作者 | Wang, Rui2,3; Du, Yi-Ran1; Ding, Guang-Rong3; Zhang, Rui2; Guan, Peng-Xin3; Xu, Bao-Hua3 |
| 刊名 | ACS Sustainable Chemistry and Engineering
 |
| 出版日期 | 2022-04-25 |
| 卷号 | 10期号:16页码:5363-5373 |
| 关键词 | Durability - Ruthenium compounds - Hydrogenation - Ionic liquids - Catalyst activity - Temperature - Catalysis - Chlorine compounds - Methanation |
| DOI | 10.1021/acssuschemeng.2c00891 |
| 英文摘要 | In this work, the vapor-phase methanation of CO2 at a low temperature was achieved under the catalysis of [Ru]@P(ILn-POSS)-Cl-A (n = 2, 3, 4) hybrids, wherein the molecular low-valent Ru complexes were encapsulated into the imidazolium chloride-decorated porous poly(ionic liquid) skeleton. Mechanistic studies suggest that it follows the cascade hydrogenation of CO2 without the formation of CO intermediates and the presence of a chloride ligand at the Ru center is crucial for [Ru]@P(ILn-POSS)-Cl-A to reach a high activity. Besides, the textural structure of [Ru]@P(ILn-POSS)-Cl-A can be adjusted by the numbers of IL units (n) in the monomer, thereby affecting the activity and catalyst durability. As such, the activity is positively correlated with the specific surface area rather than the adsorption capacity of CO2, and thus, [Ru]@P(IL2-POSS)-Cl-A provided the best TONCH4 of 81 at 160 掳C. On the other hand, the high density of the IL unit in [Ru]@P(IL4-POSS)-Cl-A is conductive to prevent the aggregation of the active Ru species, enabling satisfactory catalyst durability. As a proof of concept, the catalytic activity could be further improved by the strategy of a molecular fence, wherein the molecular Ru sites in [Ru-NMP]@P(IL2-POSS)-Cl-A were highly dispersed and stabilized with N-methylpyrrolidone. 漏 2022 The Authors. Published by American Chemical Society. |
| 学科主题 | Carbon Dioxide |
| 项目编号 | Renata Machado dos Santos Pinto was supported by a Ph.D. grant from Fundaç ; ã ; o para a Ciê ; ncia e a Tecnologia, I.P. (FCT), Portugal, under the Doctoral Programme FLUVIO &ndash ; River Restoration and Management (PD/BD/114181/2016). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. |
| 出版者 | American Chemical Society |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61269]  |
| 作者单位 | 1.School Of Chemistry And Chemical Engineering, Beijing Institute Of Technology, Beijing; 100081, China 2.State Key Laboratory Of Chemical Engineering, East China University Of Science And Technology, Shanghai; 200237, China 3.Beijing Key Laboratory Of Ionic Liquids Clean Process, Cas Key Laboratory Of Green Process And Engineering, State Key Laboratory Of Multiphase Complex Systems, Institute Of Process Engineering, Chinese Academy Of Sciences, Beijing; 100190, China |
| 推荐引用方式 GB/T 7714 | Wang, Rui,Du, Yi-Ran,Ding, Guang-Rong,et al. Encapsulation of Ru Complexes into Poly(ionic liquid) Enables the Methanation of CO2under Mild Conditions[J]. ACS Sustainable Chemistry and Engineering,2022,10(16):5363-5373. |
| APA | Wang, Rui,Du, Yi-Ran,Ding, Guang-Rong,Zhang, Rui,Guan, Peng-Xin,&Xu, Bao-Hua.(2022).Encapsulation of Ru Complexes into Poly(ionic liquid) Enables the Methanation of CO2under Mild Conditions.ACS Sustainable Chemistry and Engineering,10(16),5363-5373. |
| MLA | Wang, Rui,et al."Encapsulation of Ru Complexes into Poly(ionic liquid) Enables the Methanation of CO2under Mild Conditions".ACS Sustainable Chemistry and Engineering 10.16(2022):5363-5373. |
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来源：过程工程研究所
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