N-doped porous carbons with exceptionally high CO2 selectivity for CO2 capture
文献类型：期刊论文
| 作者 | Yang, Qihua2; Modak, Arindam2; Ren, Xiaomin1,2; Yang, Hengquan3; Li, He2; Chen, Jian1,2; Wei, Lijuan3 |
| 刊名 | CARBON
 |
| 出版日期 | 2017-04-01 |
| 卷号 | 114页码:473-481 |
| ISSN号 | 0008-6223 |
| DOI | 10.1016/j.carbon.2016.12.056 |
| 文献子类 | Article |
| 英文摘要 | Porous carbons have been considered to be promising sorbents for carbon capture and sequestration. For achieving high capture capacity and CO2/N-2 selectivity, precise control of porous structures and surface polarity is necessary. Herein we report the preparation of N-doped porous carbon via pyrolysis of microporous polyindole with KOH as the activator under N-2. Analysis results suggest that nitrogen amounts and textural properties of carbon materials could be adjusted by KOH content and pyrolysis temperature. Generally, higher V-uitramicro/V-micro ratio (up to 0.64) and higher N-doping amounts (up to 6.87 wt%) could be obtained at a relative low pyrolysis temperature and KOH content. Impressively, the porous carbons show extremely high Henry's CO2/N-2 selectivity up to 136 at 298 K, among the highest of carbon based materials. Even measured using simulating flue gas (15% CO2/85% N2) at 308 K, the porous carbons also afford very high CO2/N-2 selectivity of 63 with high CO2 adsorption capacity of 1.42 mmol/g. The high CO2/N-2 selectivity and CO2 uptake capacity under flue gas are mainly related with high V-ultramicro/V-micro ratio and N content of porous carbons. Our results imply that porous carbons with optimized surface polarity and porous structure are promising solid adsorbents for CO2 capture. (C) 2016 Elsevier Ltd. All rights reserved. |
| WOS关键词 | METAL-ORGANIC FRAMEWORK ; FLUE-GAS ; ADSORPTION PROPERTIES ; DIOXIDE CAPTURE ; MICROPOROUS POLYMERS ; NITROGEN ; ADSORBENT ; SEPARATION ; THERMODYNAMICS ; MONOLITHS |
| WOS研究方向 | Chemistry ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000393249600054 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/169702]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Yang, Qihua; Yang, Hengquan |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, State Key Lab Catalysis, iChEM, Dalian Inst Chem Phys, 457 Zhongshan Rd, Dalian 116023, Peoples R China 3.Shanxi Univ, Sch Chem & Chem Engn, Taiyuan 030006, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Qihua,Modak, Arindam,Ren, Xiaomin,et al. N-doped porous carbons with exceptionally high CO2 selectivity for CO2 capture[J]. CARBON,2017,114:473-481. |
| APA | Yang, Qihua.,Modak, Arindam.,Ren, Xiaomin.,Yang, Hengquan.,Li, He.,...&Wei, Lijuan.(2017).N-doped porous carbons with exceptionally high CO2 selectivity for CO2 capture.CARBON,114,473-481. |
| MLA | Yang, Qihua,et al."N-doped porous carbons with exceptionally high CO2 selectivity for CO2 capture".CARBON 114(2017):473-481. |
入库方式： OAI收割
来源：大连化学物理研究所
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