Comparative studies on electrochemical activity of graphene nanosheets and carbon nanotubes
Jingfang Wang, Shunlong Yang, Deyin Guo, Ping Yu, Dan Li, Jianshan Ye, Lanqun Mao
ELECTROCHEMISTRY COMMUNICATIONS | ELSEVIER SCIENCE INC | Published : 2009
This study compares the electrochemical activity of four kinds of carbon materials, i.e. single-walled carbon nanotubes (SWNTs), pristine graphene oxide nanosheets (GONs), chemically reduced GONs, and electrochemically reduced GONs, with potassium ferricyanide (K3Fe(CN)6), β-nicotinamide adenine dinucleotide (NADH) and ascorbic acid (AA) as the redox probes. Cyclic voltammetry (CV) results demonstrate that the electron transfer kinetics of the redox probes employed here at the carbon materials essentially depend on the kind of the materials, of which the redox processes of the probes at SWNTs and electrochemically reduced GONs are faster than those at the pristine and chemically reduced GONs..View full abstract
Awarded by NSF of China
Awarded by National Basic Research Program of China
The work is financially supported by NSF of China (20625515, 90813032 and 20721140650), National Basic Research Program of China (2007CB935603 and 2010CB933502), and Chinese Academy of Sciences.