| Economical synthesis strategy of rho zeolites with fine-tuned composition and porosity for enhanced trace co2 capture | |
| Ke, Quanli1,2; Sun, Tianjun1; Wei, Xiaoli1,2; Guo, Ya1,2; Xu, Shutao1; Wang, Shudong1 | |
| 刊名 | Chemical engineering journal
 |
| 2019-03-01 | |
| 卷号 | 359页码:344-353 |
| 关键词 | Silica content control Alkali metal cations Crown ether Carbon dioxide capture Zeolites |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2018.11.098 |
| 通讯作者 | Sun, tianjun(suntianjun@dicp.ac.cn) ; Xu, shutao(xushutao@dicp.ac.cn) ; Wang, shudong(wangsd@dicp.ac.cn) |
| 英文摘要 | Delicate modification of the silica contents and porous structures within rho zeolites has been readily realized by adopting a variety of alkali metal-crown ether (amce) complexes as the templates. compared to the previous protocols, up to 70% of the cs+ cations could be substituted by much cheaper k+ cations and thus the synthesis costs of rho zeolites could be impressively reduced. the subsequent cs-133 and na-23 mas nmr spectra further reveal that the cs+ cations may aggregate with crown ether in a form of monomer or dimer complex, which then plays a significant role in the structural direction of rho zeolites, whereas the hydrated na+ cations mainly serve as the charge balancing cations. meanwhile, the addition of different amount of k+ cation could result in varying degrees of template-framework interaction and consequently generates rho zeolites with diverse compositions. finally, the proton-type rho zeolites were applied to the adsorptive separation of co2/ch4/n-2 mixture. therein, the medium-silica ones achieve fine trade-off for the adsorption capacity, selectivity and heat even under ultralow co2 concentration, which makes them potential candidates for trace co2 capture. |
| WOS关键词 | CARBON-DIOXIDE CAPTURE ; 18-CROWN-6 ETHER ; ADSORPTION ; CS-133 ; NMR ; NA-23 ; SEPARATION ; CHEMISTRY ; CATIONS ; CESIUM |
| WOS研究方向 | Engineering |
| WOS类目 | Engineering, Environmental ; Engineering, Chemical |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000454137400034 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2372931 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Sun, Tianjun; Xu, Shutao; Wang, Shudong |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ke, Quanli,Sun, Tianjun,Wei, Xiaoli,et al. Economical synthesis strategy of rho zeolites with fine-tuned composition and porosity for enhanced trace co2 capture[J]. Chemical engineering journal,2019,359:344-353. |
| APA | Ke, Quanli,Sun, Tianjun,Wei, Xiaoli,Guo, Ya,Xu, Shutao,&Wang, Shudong.(2019).Economical synthesis strategy of rho zeolites with fine-tuned composition and porosity for enhanced trace co2 capture.Chemical engineering journal,359,344-353. |
| MLA | Ke, Quanli,et al."Economical synthesis strategy of rho zeolites with fine-tuned composition and porosity for enhanced trace co2 capture".Chemical engineering journal 359(2019):344-353. |
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