New preparation method of a high performance gas diffusion electrode working at 100% utilization of catalyst clusters and analysis of the reaction layer

Autor: Satoshi Motoo, Hiroyuki Usami, Masahiro Watanabe, Kazuyuki Makita
Rok vydání: 1986
Předmět:
Zdroj: Journal of Electroanalytical Chemistry and Interfacial Electrochemistry. 197:195-208
ISSN: 0022-0728
DOI: 10.1016/0022-0728(86)80149-8
Popis: The new preparation method of a gas diffusion electrode, based on the concept that the functions of the reaction layer in the electrode are allotted completely to a hydrophilic, catalysed carbon black and a wet-proofed carbon black, produces very high performance gas diffusion electrodes working at 100% utilization of platinum clusters in sulphuric acid and phosphoric acid. The suffer no polarization losses caused by mass transport up to a high current density on the optimized structure of the reaction layer. It was demonstrated that the performance controlling process can be easily analysed by the use of the utilization defined by us and by the change of Tafel slope with the structure change of the reaction layer.
Databáze: OpenAIRE