Voltammetric studies on the palladium oxides in alkaline media

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · Journal of the Electrochemical Society; (United States)

DOI:https://doi.org/10.1149/1.2220750· OSTI ID:5987532

Jeong, Moo Cheol; Yeo, In Hyeong ^[1]; Pyun, Chong Hong ^[2]

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1. Dongguk Univ., Seoul (Korea, Republic of). Dept. of Chemistry
2. KIST, Seoul (Korea, Republic of). Solid State Chemistry Lab.

The formation and stripping of palladium oxides on a palladium electrode in a 0.1M LiOH solution was studied by cyclic voltammetry. Cyclic polarization methods were used to form palladium oxides on the surface of the palladium electrode. Three different types of palladium oxides were found to be formed in alkaline solutions. A higher oxidation state of palladium oxide (PdO[sub 3]) can be formed (induced) on the surface of the electrode even at low anodic potential limit, 0.6 V (vs. SCE). Strong evidence that PdO[sub 3] can only be formed in a specific potential range is presented. From the voltammograms obtained after a long cyclic polarization time, the peak in the range of [minus]0.47 to [minus]0.60 V could be attributed to the reduction of dehydrated PdO.

• OSTI ID: 5987532
• Journal Information: Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 140:7; ISSN 0013-4651; ISSN JESOAN
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400 -- Electrochemistry
ALKALI METAL COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
CORROSION
DATA
ELECTRIC POTENTIAL
ELECTROCHEMISTRY
ELECTRODES
ELEMENTS
EXPERIMENTAL DATA
HYDROGEN COMPOUNDS
HYDROXIDES
INFORMATION
LITHIUM COMPOUNDS
LITHIUM HYDROXIDES
METALS
NUMERICAL DATA
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PALLADIUM
PALLADIUM COMPOUNDS
PALLADIUM OXIDES
PLATINUM METALS
POLARIZATION
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VOLTAMETRY