Novel porous carbon materials with ultrahigh nitrogen contents for selective CO 2 capture

Handle URI:
http://hdl.handle.net/10754/562017
Title:
Novel porous carbon materials with ultrahigh nitrogen contents for selective CO 2 capture
Authors:
Zhao, Yunfeng; Zhao, Lan; Yao, Kexin; Yang, Yang; Zhang, Qiang; Han, Yu ( 0000-0003-1462-1118 )
Abstract:
Nitrogen-doped carbon materials were prepared by a nanocasting route using tri-continuous mesoporous silica IBN-9 as a hard template. Rationally choosing carbon precursors and carefully controlling activation conditions result in an optimized material denoted as IBN9-NC1-A, which possesses a very high nitrogen doping concentration (∼13 wt%) and a large surface area of 890 m 2 g -1 arising from micropores (<1 nm). It exhibits an excellent performance for CO 2 adsorption over a wide range of CO 2 pressures. Specifically, its equilibrium CO 2 adsorption capacity at 25 °C reaches up to 4.50 mmol g -1 at 1 bar and 10.53 mmol g -1 at 8 bar. In particular, it shows a much higher CO 2 uptake at low pressure (e.g. 1.75 mmol g -1 at 25 °C and 0.2 bar) than any reported carbon-based materials, owing to its unprecedented nitrogen doping level. The high nitrogen contents also give rise to significantly enhanced CO 2/N 2 selectivities (up to 42), which combined with the high adsorption capacities, make these new carbon materials promising sorbents for selective CO 2 capture from power plant flue gas and other relevant applications. © 2012 The Royal Society of Chemistry.
KAUST Department:
Advanced Membranes and Porous Materials Research Center; Biological and Environmental Sciences and Engineering (BESE) Division; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; Core Labs; Nanostructured Functional Materials (NFM) laboratory
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Journal of Materials Chemistry
Issue Date:
2012
DOI:
10.1039/c2jm33091a
Type:
Article
ISSN:
09599428
Sponsors:
This research was supported by the Academic Excellence Alliance (AEA) program of King Abdullah University of Science and Technology.
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorZhao, Yunfengen
dc.contributor.authorZhao, Lanen
dc.contributor.authorYao, Kexinen
dc.contributor.authorYang, Yangen
dc.contributor.authorZhang, Qiangen
dc.contributor.authorHan, Yuen
dc.date.accessioned2015-08-03T09:42:55Zen
dc.date.available2015-08-03T09:42:55Zen
dc.date.issued2012en
dc.identifier.issn09599428en
dc.identifier.doi10.1039/c2jm33091aen
dc.identifier.urihttp://hdl.handle.net/10754/562017en
dc.description.abstractNitrogen-doped carbon materials were prepared by a nanocasting route using tri-continuous mesoporous silica IBN-9 as a hard template. Rationally choosing carbon precursors and carefully controlling activation conditions result in an optimized material denoted as IBN9-NC1-A, which possesses a very high nitrogen doping concentration (∼13 wt%) and a large surface area of 890 m 2 g -1 arising from micropores (<1 nm). It exhibits an excellent performance for CO 2 adsorption over a wide range of CO 2 pressures. Specifically, its equilibrium CO 2 adsorption capacity at 25 °C reaches up to 4.50 mmol g -1 at 1 bar and 10.53 mmol g -1 at 8 bar. In particular, it shows a much higher CO 2 uptake at low pressure (e.g. 1.75 mmol g -1 at 25 °C and 0.2 bar) than any reported carbon-based materials, owing to its unprecedented nitrogen doping level. The high nitrogen contents also give rise to significantly enhanced CO 2/N 2 selectivities (up to 42), which combined with the high adsorption capacities, make these new carbon materials promising sorbents for selective CO 2 capture from power plant flue gas and other relevant applications. © 2012 The Royal Society of Chemistry.en
dc.description.sponsorshipThis research was supported by the Academic Excellence Alliance (AEA) program of King Abdullah University of Science and Technology.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleNovel porous carbon materials with ultrahigh nitrogen contents for selective CO 2 captureen
dc.typeArticleen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical Science Programen
dc.contributor.departmentCore Labsen
dc.contributor.departmentNanostructured Functional Materials (NFM) laboratoryen
dc.identifier.journalJournal of Materials Chemistryen
dc.contributor.institutionSchool of Energy, Soochow University, Suzhou Jiangsu 215006, Chinaen
kaust.authorZhao, Yunfengen
kaust.authorYao, Kexinen
kaust.authorYang, Yangen
kaust.authorZhang, Qiangen
kaust.authorHan, Yuen
kaust.authorZhao, Lanen
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