TY - JOUR
T1 - Kinetics of oxygen reduction at RuO2-coated titanium electrode in alkaline solution
AU - Chang, C. C.
AU - Wen, T. C.
N1 - Funding Information:
Financial support of this work by the National Science Council of the Republic of China under Contract No NSC 85-2214-E006-026, and English consultation by Randy Gillespie are acknowledged.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 1997
Y1 - 1997
N2 - Oxygen reduction at RuO2-coated titanium electrodes prepared by thermal decomposition was investigated by employing cyclic voltammetry and rotating-disc electrode techniques. Cyclic voltammetric results indicated that oxygen reduction was catalysed by at least some hydrous oxyruthenium species, (i.e., Ru(III)) at low polarization range (E > -0.45 V) and by at least some low oxide states of ruthenium species at high polarization (E < -0.45 V). On the basis of measurements using a rotating disc electrode together with polarization curves, Tafel slopes and stoichiometric number determinations, two mechanisms for oxygen reduction on an RuO2-coated titanium electrode are proposed.
AB - Oxygen reduction at RuO2-coated titanium electrodes prepared by thermal decomposition was investigated by employing cyclic voltammetry and rotating-disc electrode techniques. Cyclic voltammetric results indicated that oxygen reduction was catalysed by at least some hydrous oxyruthenium species, (i.e., Ru(III)) at low polarization range (E > -0.45 V) and by at least some low oxide states of ruthenium species at high polarization (E < -0.45 V). On the basis of measurements using a rotating disc electrode together with polarization curves, Tafel slopes and stoichiometric number determinations, two mechanisms for oxygen reduction on an RuO2-coated titanium electrode are proposed.
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U2 - 10.1023/A:1018445100515
DO - 10.1023/A:1018445100515
M3 - Article
AN - SCOPUS:0031096779
SN - 0021-891X
VL - 27
SP - 355
EP - 363
JO - Journal of Applied Electrochemistry
JF - Journal of Applied Electrochemistry
IS - 3
ER -