Nuclear magnetic resonance and voltammetry studies of carbon monoxide adsorption and oxidation on a carbon-supported platinum fuel cell electrocatalyst

Journal Article · Mon Nov 01 00:00:00 EST 1999 · Journal of the Electrochemical Society

OSTI ID:787076

Rush, Benjamin M; Reimer, Jeffrey A; Cairns, Elton J

Nuclear magnetic resonance (NMR) spectroscopy has been used in conjunction with voltammetry in an investigation of the mechanism for the electrocatalytic oxidation of CO on a carbon-supported Pt fuel cell electrocatalyst in 2 M H2SO4 at ambient temperature. The states of adsorbed CO (COads), the conditions which give rise to those states and the oxidation pathways associated with those states were investigated as a function of the extent of COads coverage and the working-electrode potential at which the COads coverage was formed (Eads). CO was adsorbed from the electrolyte at various fixed values of Eads.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Assistant Secretary for Energy Efficiency and Renewable Energy. Office of Transportation Technologies (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 787076
• Report Number(s): LBNL-44609; JESOAN; R&D Project: 578601; TRN: AH200134%%15
• Journal Information: Journal of the Electrochemical Society, Vol. 148, Issue 2; Other Information: Journal Publication Date: February 2001; PBD: 1 Nov 1999; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
ADSORPTION
AMBIENT TEMPERATURE
CARBON MONOXIDE
ELECTROCATALYSTS
FUEL CELLS
NUCLEAR MAGNETIC RESONANCE
OXIDATION
PLATINUM
VOLTAMETRY
CHEMICAL REACTION KINETICS
CARBON MONOXIDE NUCLEAR MAGNETIC RESONANCE VOLTAMMETRY ADSORPTION