DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cha, Jun-Hwe | ko |
dc.contributor.author | Kim, Dong-Ha | ko |
dc.contributor.author | Park, Cheolmin | ko |
dc.contributor.author | Choi, Seon-Jin | ko |
dc.contributor.author | Jang, Ji-Soo | ko |
dc.contributor.author | Yang, Sang Yoon | ko |
dc.contributor.author | Kim, Il-Doo | ko |
dc.contributor.author | Choi, Sung-Yool | ko |
dc.date.accessioned | 2020-06-01T10:20:11Z | - |
dc.date.available | 2020-06-01T10:20:11Z | - |
dc.date.created | 2020-02-10 | - |
dc.date.created | 2020-02-10 | - |
dc.date.issued | 2020-04 | - |
dc.identifier.citation | ADVANCED SCIENCE, v.7, no.7, pp.1903318 | - |
dc.identifier.issn | 2198-3844 | - |
dc.identifier.uri | http://hdl.handle.net/10203/274414 | - |
dc.description.abstract | Graphene oxide (GO) doping and reduction allow for physicochemical property modification to suit practical application needs. Herein, the challenge of simultaneous low-thermal-budget heteroatom doping of GO and its reduction in ambient air is addressed through the synthesis of B-doped reduced GO (B@rGO) by flash irradiation of boric acid loaded onto a GO support with intense pulsed light (IPL). The effects of light power and number of shots on the in-depth sequential doping and reduction mechanisms are investigated by ex situ X-ray photoelectron spectroscopy and direct millisecond-scale temperature measurements (temperature >1600 degrees C, < 10-millisecond duration, ramping rate of 5.3 x 10(5) degrees C s(-1)). Single-flash IPL allows the large-scale synthesis of substantially doped B@rGO (approximate to 3.60 at% B) to be realized with a thermal budget 10(6)-fold lower than that of conventional thermal methods, and the prepared material with abundant B active sites is employed for highly sensitive and selective room-temperature NO2 sensing. Thus, this work showcases the great potential of optical annealing for millisecond-scale ultrafast reduction and heteroatom doping of GO in ambient air, which allows the tuning of multiple physicochemical GO properties. | - |
dc.language | English | - |
dc.publisher | WILEY | - |
dc.title | Low-Thermal-Budget Doping of 2D Materials in Ambient Air Exemplified by Synthesis of Boron-Doped Reduced Graphene Oxide | - |
dc.type | Article | - |
dc.identifier.wosid | 000514968500001 | - |
dc.identifier.scopusid | 2-s2.0-85083082508 | - |
dc.type.rims | ART | - |
dc.citation.volume | 7 | - |
dc.citation.issue | 7 | - |
dc.citation.beginningpage | 1903318 | - |
dc.citation.publicationname | ADVANCED SCIENCE | - |
dc.identifier.doi | 10.1002/advs.201903318 | - |
dc.contributor.localauthor | Kim, Il-Doo | - |
dc.contributor.localauthor | Choi, Sung-Yool | - |
dc.description.isOpenAccess | Y | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | flash irradiation | - |
dc.subject.keywordAuthor | gas sensors | - |
dc.subject.keywordAuthor | graphene oxide | - |
dc.subject.keywordAuthor | low-thermal-budget doping | - |
dc.subject.keywordPlus | BORIC-ACID | - |
dc.subject.keywordPlus | NITROGEN | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordPlus | LAYERS | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | PROGRESS | - |
dc.subject.keywordPlus | SENSORS | - |
dc.subject.keywordPlus | SHEETS | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.