期刊
MOLECULES
卷 20, 期 12, 页码 21050-21057出版社
MDPI AG
DOI: 10.3390/molecules201219747
关键词
graphene oxide; graphene azide; Raman; TGA-MS
资金
- German Science Foundation (DFG) [EI 938/3-1]
- Collaborative Research Centre: Synthetic Carbon Allotropes [SFB953]
- Cluster of Excellence Engineering of Advanced Materials (EAM) - DFG
In the last decades, organic azides haven proven to be very useful precursors in organic chemistry, for example in 1,3-dipolar cycloaddition reactions (click-chemistry). Likewise, azides can be introduced into graphene oxide with an almost intact carbon framework, namely oxo-functionalized graphene (oxo-G(1)), which is a highly oxidized graphene derivative and a powerful precursor for graphene that is suitable for electronic devices. The synthesis of a graphene derivative with exclusively azide groups (graphene azide) is however still a challenge. In comparison also hydrogenated graphene, called graphene or halogenated graphene remain challenging to synthesize. A route to graphene azide would be the desoxygenation of azide functionalized oxo-G(1). Here we show how treatment of azide functionalized oxo-G(1) with HCl enlarges the -system and removes strongly adsorbed water and some oxo-functional groups. This development reflects one step towards graphene azide.
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