Eigler S, Grimm S, Hirsch A (2014)
Publication Type: Journal article, Original article
Publication year: 2014
Original Authors: Eigler S., Grimm S., Hirsch A.
Publisher: Wiley-VCH Verlag
Book Volume: 20
Pages Range: 984-989
Journal Issue: 4
In this study, we use our recently prepared graphene oxide (GO) with an almost intact σ-framework of carbon atoms (ai-GO) to probe the thermal stability of the carbon framework for the first time. Ai-GO exhibits few defects because CO formation is prevented during synthesis. Ai-GO was thermally treated before chemical reduction and the resulting defect density in graphene was subsequently determined by statistical Raman microscopy. Surprisingly, the carbon framework of ai-GO is stable in thin films up to 100°C. Furthermore, we find evidence for an increase in the quality of ai-GO upon annealing at 50°C before reduction. The carbon framework of GO prepared according to the popular Hummers' method (GO-c) appears to be less stable and decomposition starts at 50°C, which is qualitatively indicated by CO-trapping experiments in μm-thin films. Information about the stability of GO is important for storing, processing, and using GO in many applications. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
APA:
Eigler, S., Grimm, S., & Hirsch, A. (2014). Investigation of the thermal stability of the carbon framework of graphene oxide. Chemistry - A European Journal, 20(4), 984-989. https://doi.org/10.1002/chem.201304048
MLA:
Eigler, Siegfried, Stefan Grimm, and Andreas Hirsch. "Investigation of the thermal stability of the carbon framework of graphene oxide." Chemistry - A European Journal 20.4 (2014): 984-989.
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