Increase of Electrical Conductivity due to Chemical Reduction of Pre-Exfoliated Graphene Oxide by Sodium Borohydride

Advanced Materials Research 2015
Astrīda Bērziņa, Velta Tupureina, Raimonds Orlovs, Dmitrijs Saharovs, Juris Bitenieks, Māris Knite

Graphene oxide (GO) reduction is a promising way for graphene l arge scale synthesis. Pre-exfoliated graphite was oxidized and reduced. The material w as compared to commercial graphene oxide and its reduced sample. The reduction process of grap hene oxide is accomplished using sodium borohydride (NaBH 4 ) with variable-valence metal ion – cobalt – assistance. The reduced graphene oxide (RGO) was characterized by Raman sp ectroscopy. The particle size and suspension stability were determined. Electrical conductivity me asurements of GO and RGO samples have been done in temperature range from -150°C to 85°C. Pre -exfoliation effect was determined.

Keywords
Electrical conductivity, graphene oxide,termal exfoliated graphite, reduction, sodium borohydride
DOI
10.4028/www.scientific.net/AMR.1117.187
Hyperlink
https://www.scientific.net/AMR.1117.187

Bērziņa, A., Tupureina, V., Orlovs, R., Saharovs, D., Bitenieks, J., Knite, M. Increase of Electrical Conductivity due to Chemical Reduction of Pre-Exfoliated Graphene Oxide by Sodium Borohydride. Advanced Materials Research, 2015, Vol. 1117, pp.187-190. ISSN 1662-8985. Available from: doi:10.4028/www.scientific.net/AMR.1117.187

Publication language
English (en)