DOI: 10.1016/j.jcou.2017.08.010
Scopus记录号: 2-s2.0-85028028343
论文题名: Nitrogen doped hierarchically porous carbon derived from glucosamine hydrochloride for CO2 adsorption
作者: Shi J. ; Yan N. ; Cui H. ; Liu Y. ; Weng Y. ; Li D. ; Ji X.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2017
卷: 21 起始页码: 444
结束页码: 449
语种: 英语
英文关键词: CO2 adsorption
; Hierarchically porous carbon
; Hydrothermal carbonization
; Nitrogen doping
Scopus关键词: Adsorption
; Carbonization
; Chemical activation
; Doping (additives)
; Glucosamine
; Nitrogen
; Pore size
; Porosity
; Porous materials
; Thermochemistry
; Adsorption selectivity
; Carbonaceous materials
; CO2 adsorption
; Glucosamine hydrochloride
; Hierarchically porous carbons
; Hydrothermal carbonization
; Nitrogen-doped carbons
; Nitrogen-doping
; Carbon dioxide
英文摘要: Hydrothermal carbonization (HTC) of biomass is an attractive and sustainable method for the preparation of carbonaceous materials. In this work, nitrogen doped carbon with a hierarchically porous strucutre was successfully prepared through the HTC of glucosamine hydrochloride and the subsequent KOH activation. The resultant carbons were characterized with different techniques, and the effects of activation conditions on the porous structure were also discussed. The carbons showed outstanding CO2 adsorption properties, a high CO2 uptake of 4.5 mmol/g was achieved at 298 K and 1 bar. In order to analyze the influences of nitrogen doping, a pristine carbon sample with very close pore size distribution characteristics but higher porosity was also synthesized with glucose as the carbon precursor. The corresponding CO2 uptake at 298 K and 1 bar was 3.4 mmol/g. Our results revealed that the presence of ultramicropores was an essential prerequisite for CO2 adsorption at ambient conditions, while nitrogen doping showed positive effects on both CO2 uptake and the adsorption selectivity over N2. © 2017 Elsevier Ltd. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52660
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Shi J.,Yan N.,Cui H.,et al. Nitrogen doped hierarchically porous carbon derived from glucosamine hydrochloride for CO2 adsorption[J]. Journal of CO2 Utilization,2017-01-01,21