Electrochemical Performance of Graphene as Effected by Electrode Porosity and Graphene Functionalization

Journal Article · Mon Nov 01 04:00:00 EDT 2010 · Electroanalysis, 22(23):2834-2841

DOI:https://doi.org/10.1002/elan.201000367· OSTI ID:1018160

Punckt, Christian; Pope, Michael A; Liu, Jun; Lin, Yuehe; Aksay, Ilhan A

Graphene-based electrodes have recently gained popularity due to their superior electrochemical properties. However, the exact mechanisms of electrochemical activity are not yet understood. Here, we present data from NADH oxidation and ferri/ferrocyanide redox probe experiments to demonstrate that both (i) the porosity of the graphene electrodes, as effected by the packing morphology, and (ii) the functional group and the lattice defect concentration play a significant role on their electrochemical performance.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1018160
• Report Number(s): PNNL-SA-79068; KC0201050
• Journal Information: Electroanalysis, 22(23):2834-2841, Journal Name: Electroanalysis, 22(23):2834-2841 Journal Issue: 23 Vol. 22; ISSN 1040-0397
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
CRYSTAL DEFECTS
Catalysis
ELECTRODES
FUNCTIONALS
Functionalization
Graphene
MORPHOLOGY
OXIDATION
PERFORMANCE
POROSITY
PROBES
Porosity
Sensors