Explosive thermal reduction of graphene oxide-based materials: mechanism and safety implications.

ABSTRACT: Thermal reduction of graphene oxide or graphite oxide (GO) is an important processing step in the fabrication of many graphene-based materials and devices. Here we show that some bulk solid GO samples can undergo explosive decomposition when small samples are heated slowly in inert gas environments, while others do not. These micro-explosions can occur for samples as small as few milligrams and are sufficiently energetic to cause laboratory equipment damage. Thermochemical analysis methods are used to understand the factors that lead to the explosive reduction mode. The studies show that the explosive mode of reduction is caused by the exothermicity of GO reduction coupled with a threshold sample mass/size that causes heat and mass transfer limitations leading to local temperature rise and

SUBMITTER: Qiu Y 

PROVIDER: S-EPMC4088991 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature