Lateral size reduction of graphene oxide preserving its electronic properties and chemical functionality
Journal article, 2020

Graphene oxide (GO) is widely considered as a graphene precursor when chemically reduced. Nevertheless, through the precise control of two parameters: lateral size and oxidation degree, GO can be useful in many applications as modified graphene oxide or functional reduced graphene oxide. Commonly, the decrease in GO lateral size, involves a change in the C/O ratio and therefore a modification in a large number of characteristics. Here, a simple but effective approach to synthesize GO with lateral dimensions below 100 nm and without modification of its chemical, optical and electronic features is presented. The use of a sonifier at low temperature allows to rapidly reduce the lateral size in similar to 82% while preserving the C/O ratio and consequently the chemical stability, the band gap, the electronic energy levels and the functionality. This method will allow several applications from biomedicine to energy, where reliable reduced size of GO is required.

Author

Ulises Mendez Romero

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Ergang Wang Group

Sergio Alfonso Perez-Garcia

Grp Polymer Nanocomposites

University of Pittsburgh

Qunping Fan

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Ergang Wang

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Ergang Wang Group

Liliana Licea-Jimenez

Grp Polymer Nanocomposites

University of Pittsburgh

RSC Advances

2046-2069 (ISSN)

Vol. 10 49 29432-29440

Subject Categories

Inorganic Chemistry

Materials Chemistry

Condensed Matter Physics

DOI

10.1039/d0ra04726k

More information

Latest update

11/12/2020