Enhanced electrochemical sensitivity of PtRh electrodes coated with nitrogen-doped graphene

We report the enhancement of electron transfer properties of PtRh electrodes modified by nitrogen-doped graphene coating. The nitrogen-doped graphene coating prepared by a hydrazine-assisted ultrasonication allows for the development of new and effective graphene-based electrode materials for electrochemical sensing. (C) 2010 Elsevier B.V. All rights reserved.