Characterization of Graphene Sheets Formed by the Reaction of Carbon Monoxide with Aluminum Sulfide

Bulletin of the Korean chemical society

Chang Duk Kim¹  Young Ki Kim¹  Bong Ki Min¹  Woo Sik Jung¹  Bongsoo Kim¹  Ilsun Yoon¹ 

关键词: Graphene sheets;    Carbon monoxide;    Aluminum sulfide;    Raman spectroscopy;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Graphene sheets formed by the reaction of carbon monoxide (CO) with aluminum sulfide (Al2S3) at reaction temperatures �? 800 oC were characterized by X-ray diffraction (XRD), Raman spectroscopy, and high-resolution transmission electron microscopy (HRTEM). The graphene sheets, formed as CO was reduced to gaseous carbon by the reaction with Al2S3, in the temperature range 800 - 1100 oC, did not exhibit their characteristic XRD peaks because of the small number of graphene layers and/or low crystallinity of graphene sheets. Raman spectra of graphene sheets showed that the intensity ratio of the D band to the G band decreased and the 2D band was shifted to higher frequencies with increasing reaction temperature, indicating that the number of graphene layers increased with increasing reaction temperature.

【 授权许可】

Unknown