STUDY OF HYDROGEN EVOLUTION ON SELECTED PTFE-BONDED POROUS-ELECTRODES

Authors
BORODZINSKI JJ LASIA A
Citation
Jj. Borodzinski et A. Lasia, STUDY OF HYDROGEN EVOLUTION ON SELECTED PTFE-BONDED POROUS-ELECTRODES, International journal of hydrogen energy, 18(12), 1993, pp. 985-994
Citations number
63
Categorie Soggetti
Energy & Fuels","Environmental Sciences","Physics, Atomic, Molecular & Chemical
Journal title
International journal of hydrogen energy → ACNP
ISSN journal
03603199
Volume
18
Issue
12
Year of publication
1993
Pages
985 - 994
Database
ISI
SICI code
0360-3199(1993)18:12<985:SOHEOS>2.0.ZU;2-W
Abstract
The hydrogen evolution reaction was studied in 1M NaOH solution at 70- degrees-C on various PTFE-bonded electrode materials. Using steady-sta te galvanostatic measurements and ac. impedance spectroscopy, the elec trode properties and kinetic parameters were determined. It was found that the a.c. behavior could be described by a constant phase element model and that the hydrogen evolution reaction proceeds via the Volmer -Heyrovsky mechanism. No catalytic effect of PTFE was found. The obser ved changes in performance could be explained by changes in the roughn ess of the electrode materials.