Preparation of potassium intercalated carbons by in-situ activation and speciation for CO2 capture from flue gas

doi:10.1016/j.jcou.2019.09.001

	Preparation of potassium intercalated carbons by in-situ activation and speciation for CO2 capture from flue gas
	Cao, Shicheng 1,2; Zhao, Hongyu 2; Hu, Deng 2; Wang, Jun-an 1; Li, Minkang 1,2; Zhou, Zhongjin 2; Shen, Qun 2; Sun, Nannan 2; Wei, Wei2,3,4
	2020-01
发表期刊	JOURNAL OF CO2 UTILIZATION (IF:7.2[JCR-2023],7.4[5-Year])
ISSN	2212-9820
EISSN	2212-9839
卷号	35 页码:59-66
发表状态	已发表
DOI	10.1016/j.jcou.2019.09.001
摘要	Nitrogen and/or sulfur doped carbons were extensively investigated as CO2 adsorbents, however their performance in CO2 capture from combustion flue gas, which is the largest stationary emission source, was less promising. Herein, potassium was used as a dopant for carbon, and a new series of materials, namely potassium intercalated carbons (PICs), were prepared sequentially by oxidation of mesoporous carbon, potassium ion exchange, and calcination. Based on results from FT-IR, XPS, TG-MS, etc., it was found the pre-loaded potassium interacted with the carbon matrix during calcination, enabled great flexibility in: (1) porosity adjustment by "insitu activation", and (2) surface chemistry manipulation by potassium intercalation. Taking together, the optimized sample (PIC-700) showed fast and stable CO2 uptake of 5.23 wt.% in flue gas conditions (40 degrees C, 1 bar, 15%O-2), which is among the highest for carbon-based adsorbents. Such promising performance is directly related to the enhanced CO2 affinity due to the presence of potassium dopants. Dynamic separation of CO2 from 15%O-2/85%N-2 showed similar adsorption capacity, and no performance decay could be observed during temperature swing cycles, demonstrating the great potential for the PICs for practical CO2 capture applications.
关键词	CO2 capture Carbon Adsorption Materials Flue gas
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	Shanghai Natural Science Foundation[18ZR1444200]
WOS研究方向	Chemistry ; Engineering
WOS类目	Chemistry, Multidisciplinary ; Engineering, Chemical
WOS记录号	WOS:000504484800006
出版者	ELSEVIER SCI LTD
WOS关键词	METAL-ORGANIC FRAMEWORKS ; ONE-POT SYNTHESIS ; N-DOPED CARBON ; DIOXIDE CAPTURE ; MESOPOROUS CARBON ; LOW-COST ; ADSORPTION ; NANOSPHERES ; SELECTIVITY ; ADSORBENTS
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/104994
专题	物质科学与技术学院_特聘教授组_魏伟组
通讯作者	Sun, Nannan; Wei, Wei
作者单位	1.Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China 2.Chinese Acad Sci, Shanghai Adv Res Inst, CAS Key Lab Low Carbon Convers Sci & Engn, Shanghai 201210, Peoples R China 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 4.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Urban Atmospher Environm, Xiamen 361021, Fujian, Peoples R China
通讯作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Cao, Shicheng,Zhao, Hongyu,Hu, Deng,et al. Preparation of potassium intercalated carbons by in-situ activation and speciation for CO2 capture from flue gas[J]. JOURNAL OF CO2 UTILIZATION,2020,35:59-66.
APA	Cao, Shicheng.,Zhao, Hongyu.,Hu, Deng.,Wang, Jun-an.,Li, Minkang.,...&Wei, Wei.(2020).Preparation of potassium intercalated carbons by in-situ activation and speciation for CO2 capture from flue gas.JOURNAL OF CO2 UTILIZATION,35,59-66.
MLA	Cao, Shicheng,et al."Preparation of potassium intercalated carbons by in-situ activation and speciation for CO2 capture from flue gas".JOURNAL OF CO2 UTILIZATION 35(2020):59-66.