Lateral size reduction of graphene oxide preserving its electronic properties and chemical functionality
Artikel i vetenskaplig tidskrift, 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.

Författare

Ulises Mendez Romero

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Ergang Wang Group

Sergio Alfonso Perez-Garcia

Grp Polymer Nanocomposites

University of Pittsburgh

Qunping Fan

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Ergang Wang

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Ergang Wang Group

Liliana Licea-Jimenez

Grp Polymer Nanocomposites

University of Pittsburgh

RSC Advances

2046-2069 (ISSN)

Vol. 10 49 29432-29440

Ämneskategorier

Oorganisk kemi

Materialkemi

Den kondenserade materiens fysik

DOI

10.1039/d0ra04726k

Mer information

Senast uppdaterat

2020-11-12