콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Gold nanoparticle-doped graphene nanosheets: sub-nanosized gold clusters nucleate and grow at the nitrogen-induced defects on graphene surfaces
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2012-02-17
- 저자명 Hye Young Koo, Ha-Jin Lee, Yong-Young Noh, Eui-Sup Lee, Yong-Hyun Kim and Won San Choi*
- 학술지명 J. Mater. Chem
- 발행처명 Royal Society of Chemistry
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 6
- 논문 다운로드 링크(외부) https://doi.org/10.1039/C2JM16195H
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
We report the theory and synthesis of sub-nanosized gold clusters on reduced graphene oxide (r-GOs). The Au sub-nanoclusters were found to be nucleated and grown at defects of the r-GOs, particularly on nitrogen-induced defects from density functional theory investigation. The resulting Au/r-GOs exhibit an improvement of bulk electrical conductivities and a reduced ratio of the intensity of the D band to that of the G band (ID/IG), compared to the r-GOs without Au nanoclusters. The unique decrease of the ID/IG was demonstrated to be related to the filling of subnano-sized Au clusters on the r-GOs, presumably owing to enhancing the flat geometry of the graphene nanosheets.
