Abstract
ESR study was performed on graphite oxide films before and after reduction. The concentration of localized spin centers in the graphite oxide film drastically increased by more than twenty times as a result of reduction, while the concentration of delocalized spin centers remained unchanged. The reduction of the film led to the elimination of oxygen atoms from peripheral and/or inner part of the film and, probably, to the formation of conjugated double bonds between carbon atoms in the carbon network plane, increasing the concentration of localized spin centers. The reduced films did not show any ESR signal, however, when heattreated at temperatures between 600°C and 2400°C. The gvalue anisotropy, which was observed for the reduced film treated at 2800°C, was not found in any samples heattreated below 600°C. The gvalue anisotropy seems to be correlated with the appearance of three dimensional (112) diffraction line.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
