Carbon doping of hexagonal boron nitride porous materials toward CO2 capture

doi:10.1039/c7ta08515j

	Carbon doping of hexagonal boron nitride porous materials toward CO2 capture
	Chen, Siru 1; Li, Pan 1,2; Xu, Shutao 1,3; Pan, Xiulian 1; Fu, Qiang 1; Bao, Xinhe 1,2
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2018-01-28
卷号	6 期号:4 页码:1832-1839
ISSN号	2050-7488
DOI	10.1039/c7ta08515j
文献子类	Article
英文摘要	CO2 capture via solid adsorption technology relies on the development of low-cost and high-performance new solid adsorbents. The robust and large-scale produced hexagonal boron nitride (h-BN) porous materials are an ideal candidate but present low CO2 adsorption properties. Here, we report that in situ carbon doping of BN materials (BCN) can be facilely controlled by thermal annealing of boric acid and melamine mixtures in various atmospheres. CO2 uptake of the BCN materials is in the range of 3.74-3.91 mmol CO2 g(-1) (165-172 mg CO2 g(-1)) at 298 K and ambient pressure, whereas it is only 1.16-1.66 mmol CO2 g(-1) (53.0-73.1 mg CO2 g(-1)) over the pure BN materials. The separation coefficient between CO2 and N-2 is up to 74 and no decrease in the adsorption performance was observed after nine adsorption/desorption cycles. The BCN material presents the best performance among known BN-based sorbents, which is comparable to many excellent carbon materials. Detailed characterization reveals that the incorporation of carbon into the BN matrix increases the density of ultramicropores (<0.7 nm) and chemical defects, consequently enhancing the CO2 adsorption capacity and the selectivity over N-2 molecules.
WOS关键词	TEMPLATE-FREE SYNTHESIS ; N-DOPED CARBON ; OXIDATIVE DEHYDROGENATION ; OXYGEN-REDUCTION ; ACTIVATED CARBON ; DIOXIDE CAPTURE ; ADSORPTION ; SELECTIVITY ; CATALYST ; GAS
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000423466100052
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/168590]
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	Fu, Qiang
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, IChEM, Dalian 116023, Peoples R China 2.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Natl Engn Lab Methanol Olefins, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Chen, Siru,Li, Pan,Xu, Shutao,et al. Carbon doping of hexagonal boron nitride porous materials toward CO2 capture[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(4):1832-1839.
APA	Chen, Siru,Li, Pan,Xu, Shutao,Pan, Xiulian,Fu, Qiang,&Bao, Xinhe.(2018).Carbon doping of hexagonal boron nitride porous materials toward CO2 capture.JOURNAL OF MATERIALS CHEMISTRY A,6(4),1832-1839.
MLA	Chen, Siru,et al."Carbon doping of hexagonal boron nitride porous materials toward CO2 capture".JOURNAL OF MATERIALS CHEMISTRY A 6.4(2018):1832-1839.