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Kim, Kwang S.
Center for Superfunctional Materials (CSM)
Research Interests
  • Theoretical/experimental nanosciences, molecular electronics spectroscopy, energy materials

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Synthesis of N-doped microporous carbon via chemical activation of polyindole-modified graphene oxide sheets for selective carbon dioxide adsorption

DC Field Value Language
dc.contributor.author Saleh, Muhammad ko
dc.contributor.author Chandra, Vimlesh ko
dc.contributor.author Kemp, K. Christian ko
dc.contributor.author Kim, Kwang S. ko
dc.date.available 2014-09-01T07:03:20Z -
dc.date.created 2014-09-01 ko
dc.date.issued 2013-06 ko
dc.identifier.citation NANOTECHNOLOGY, v.24, no.25 ko
dc.identifier.issn 0957-4484 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/5563 -
dc.description.abstract A polyindole-reduced graphene oxide (PIG) hybrid was synthesized by reducing graphene oxide sheets in the presence of polyindole. We have shown PIG as a material for capturing carbon dioxide (CO2). The PIG hybrid was chemically activated at temperatures of 400-800 degrees C, which resulted in nitrogen (N)-doped graphene sheets. The N-doped graphene sheets are microporous with an adsorption pore size of 0.6 nm for CO2 and show a maximum (Brunauer, Emmet and Teller) surface area of 936 m(2) g(-1). The hybrid activated at 600 degrees C (PIG6) possesses a surface area of 534 m(2) g(-1) and a micropore volume of 0.29 cm(3) g(-1). PIG6 shows a maximum CO2 adsorption capacity of 3.0 mmol g(-1) at 25 degrees C and 1 atm. This high CO2 uptake is due to the highly microporous character of the material and its N content. The material retains its original adsorption capacity on recycling even after 10 cycles (within experimental error). PIG6 also shows high adsorption selectivity ratios for CO2 over N-2, CH4 and H-2 of 23, 4 and 85 at 25 degrees C, respectively. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher IOP PUBLISHING LTD ko
dc.title Synthesis of N-doped microporous carbon via chemical activation of polyindole-modified graphene oxide sheets for selective carbon dioxide adsorption ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84878693722 ko
dc.identifier.wosid 000320029000015 ko
dc.type.rims ART ko
dc.description.wostc 9 *
dc.description.scopustc 4 *
dc.date.tcdate 2015-05-06 *
dc.date.scptcdate 2014-09-01 *
dc.identifier.doi 10.1088/0957-4484/24/25/255702 ko
dc.identifier.url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84878693722 ko
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