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Electron-beam reduction method for preparing electrocatalytic particles for membrane electrode assemblies (MEA) by Yi-Hao Pai; Hsin-Fu Huang; Yu-Chen Chang; Chih-Cheng Chou; Fuh-Sheng Shieu is a Engineering article available to read on EtoBox.

What is Electron-beam reduction method for preparing electrocatalytic particles for membrane electrode assemblies (MEA) about?

A new method, the electron-beam (e-beam) reduction method, is presented for fuel cell electrocatalytic particle preparation. The method utilizes the idea of reducing ions of the catalyst species right on the carbon cloth fibers and the multi walled carbon nano tubes (MWNTs) via direct electron-beam bombardment. The morphology of the electron-beam reduced catalyst particles is presented to show that the catalyst particles were dispersed in an equal and homogeneous manner within the MWNTs/carbon cloth electrode carriers, and imply that the electroactive surface area of the e-beam reduced catalysts should assume a larger value than those from currently reported methods. With the Pt (catalyst) loadings being controlled, data obtained from electrochemical and polarization tests show that the electrodes and membrane electrode assemblies (MEA) prepared from the e-beam reduction have larger active surface areas and better working performances than those prepared from the sputtering method; the quantitative results show good consistency with the qualitative morphology images.

Who reads Electron-beam reduction method for preparing electrocatalytic particles for membrane electrode assemblies (MEA)?

Author

Yi-Hao Pai; Hsin-Fu Huang; Yu-Chen Chang; Chih-Cheng Chou; Fuh-Sheng Shieu

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0378-7753)

Published

2006

Language

EN

Field

Engineering (Physical Sciences)