Structural and Morphological Properties of Carbon Supports: Effect of Catalyst degradation, ECS Transactions 33(1), 425 (2010)

Conference · Fri Apr 01 00:00:00 EDT 2011 · ECS Transactions

OSTI ID:1038300

Patel, A; Artyushkova, K; Atanassov, P; Young, A; Dutta, M; Ahmad, Z; Colbow, V; Wessel, S; Ye, S

The object of this work was to identify correlations between performance losses of Pt electrocatalysts on carbon support materials and the chemical and morphological parameters that describe them. Accelerated stress testing, with an upper potential of 1.2 V, was used to monitor changes to cathode properties, including kinetic performance and effective platinum surface area losses. The structure and chemical compositions were studied using X-ray Photoelectron Spectroscopy and Scanning Electron Microscopy coupled with Digital Image Processing. As this is an ongoing study, it is difficult to draw firm conclusions, though a trend between support surface area overall performance loss was found to exist.

• Research Organization: Ballard Power Systems, Burnaby, BC; University of New Mexico, Chemical and Nuclear Engineering Department UNM Center for Emerging Technologies, Albuquerque, NM
• Sponsoring Organization: USDOE
• DOE Contract Number: EE0000466
• OSTI ID: 1038300
• Report Number(s): DOE/EE0000466-1; TRN: US201211%%167
• Journal Information: ECS Transactions, Vol. 33, Issue 1; Conference: 218th Meeting of the Electrochemical Society, Las Vegas, 1- 5 October 2010,
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
CARBON
CATALYSTS
CATHODES
CHEMICAL COMPOSITION
ELECTROCATALYSTS
IMAGE PROCESSING
KINETICS
MONITORS
PERFORMANCE
PLATINUM
SCANNING ELECTRON MICROSCOPY
SURFACE AREA
TESTING
X-RAY PHOTOELECTRON SPECTROSCOPY
PEM Fuel Cells
catalyst
catalyst degradation