Simultaneous graphite exfoliation and N doping in supercritical ammonia
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | SASIKALA, Suchithra Padmajan | |
| hal.structure.identifier | Centre de recherches Paul Pascal [CRPP] | |
| dc.contributor.author | HUANG, Kai | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GIROIRE, Baptiste | |
| hal.structure.identifier | Department of Advanced Materials | |
| dc.contributor.author | PRABHAKARAN, Prem | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | HENRY, Lucile | |
| hal.structure.identifier | Centre de recherches Paul Pascal [CRPP] | |
| dc.contributor.author | PÉNICAUD, Alain | |
| hal.structure.identifier | Centre de recherches Paul Pascal [CRPP] | |
| dc.contributor.author | POULIN, Philippe | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | AYMONIER, Cyril | |
| dc.date.issued | 2016 | |
| dc.identifier.issn | 1944-8244 | |
| dc.description.abstractEn | We report the exfoliation of graphite and simultaneous N doping of graphene by two methods: supercritical ammonia treatment and liquid-phase exfoliation with NH4OH. While the supercritical ammonia allowed N doping at a level of 6.4 atom % in 2 h, the liquid-phase exfoliation with NH4OH allowed N doping at a level of 2.7 atom % in 6 h. The N doped graphene obtained via the supercritical ammonia route had few layers (<5) and showed large lateral flake size (∼8 μm) and low defect density (ID/IG < 0.6) in spite of their high level of N doping. This work is the first demonstration of supercritical ammonia as an exfoliation agent and N doping precursor for graphene. Notably, the N doped graphene showed electrocatalytic activity toward oxygen reduction reaction with high durability and good methanol tolerance compared to those of commercial Pt/C catalyst. | |
| dc.description.sponsorship | Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003 | |
| dc.language.iso | en | |
| dc.publisher | Washington, D.C. : American Chemical Society | |
| dc.subject.en | electrochemical catalyst | |
| dc.subject.en | in situ N doping of graphene | |
| dc.subject.en | liquid-phase exfoliation | |
| dc.subject.en | oxygen reduction reaction | |
| dc.subject.en | supercritical ammonia | |
| dc.title.en | Simultaneous graphite exfoliation and N doping in supercritical ammonia | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1021/acsami.6b10570 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | ACS Applied Materials & Interfaces | |
| bordeaux.page | 30964–30971 | |
| bordeaux.volume | 8 | |
| bordeaux.issue | 45 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01407974 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01407974v1 | |
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