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

Thermal Reduction of Graphene Oxide

In a two-dimensional carbon system for graphene (GP), three carbon electrons in four hybridized bonding electrons (2s12px12py12pz1) form strong in-plane sp2 bonds consisting of a honeycomb structure, and a fourth electron spreads out over the top or bottom of the layer as a π electron. The π electrons play an important role in the coupling interactions of multilayered GPs. A two-dimensionally s...

Critical temperatures in the synthesis of graphene - like materials by thermal exfoliation - reduction of graphite oxide

We prepared a series of graphene-like materials by thermal exfoliation/reduction of a graphite oxide (GO) at temperatures between 127oC and 2400oC. The extent of the exfoliation and reduction of the GO at different temperatures, as well as the impact on the resultant graphene-like materials (TRGs), were studied through their chemical/structural characterization. The main oxygen loss was observe...

Phonons and thermal transport in graphene and graphene-based materials.

A discovery of the unusual thermal properties of graphene stimulated experimental, theoretical and computational research directed at understanding phonon transport and thermal conduction in two-dimensional material systems. We provide a critical review of recent results in the graphene thermal field focusing on phonon dispersion, specific heat, thermal conductivity, and comparison of different...

Oxygen reduction by lithiated graphene and graphene-based materials.

Oxygen reduction reaction (ORR) plays a key role in lithium-air batteries (LABs) that attract great attention thanks to their high theoretical specific energy several times exceeding that of lithium-ion batteries. Because of their high surface area, high electric conductivity, and low specific weight, various carbons are often materials of choice for applications as the LAB cathode. Unfortunate...

Mechanism of thermal conductivity reduction in few-layer graphene