Abstract
The electrochemical and electrocatalytic properties of Ni-Pt codeposits for methanol oxidation in an alkaline medium were characterized by cyclic voltammetry. The Ni-Pt codeposit with ca. Pt 60 a/o was found to exhibit the maximal activity for the oxidation of methanol in the low potential range. The electrocatalytic activity of all Ni-Pt codeposits (before and after leaching) for methanol oxidation was found to depend on their original compositions/textural properties before leaching. The hydroxyl Pt(IV) species with a higher hydrated property possessed a higher activity for the methanol oxidation and oxygen evolution reactions (OER). The presence of a hydroxyplatinum intermediate, Pt(OH)(ads), was proposed to be responsible for the anodic peaks of methanol oxidation in the less positive potential region on both positive and negative sweeps.
| Original language | English |
|---|---|
| Pages (from-to) | 515-524 |
| Number of pages | 10 |
| Journal | Journal of the Chinese Institute of Chemical Engineers |
| Volume | 30 |
| Issue number | 6 |
| Publication status | Published - 1999 Nov 1 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Chemical Engineering(all)
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Voltammetric investigation of nickel-platinum codeposits for methanol oxidation in KOH solutions. / Wen, Ten-Chin; Hu, Che Hao; Hu, Chi Chang.
In: Journal of the Chinese Institute of Chemical Engineers, Vol. 30, No. 6, 01.11.1999, p. 515-524.Research output: Contribution to journal › Article
TY - JOUR
T1 - Voltammetric investigation of nickel-platinum codeposits for methanol oxidation in KOH solutions
AU - Wen, Ten-Chin
AU - Hu, Che Hao
AU - Hu, Chi Chang
PY - 1999/11/1
Y1 - 1999/11/1
N2 - The electrochemical and electrocatalytic properties of Ni-Pt codeposits for methanol oxidation in an alkaline medium were characterized by cyclic voltammetry. The Ni-Pt codeposit with ca. Pt 60 a/o was found to exhibit the maximal activity for the oxidation of methanol in the low potential range. The electrocatalytic activity of all Ni-Pt codeposits (before and after leaching) for methanol oxidation was found to depend on their original compositions/textural properties before leaching. The hydroxyl Pt(IV) species with a higher hydrated property possessed a higher activity for the methanol oxidation and oxygen evolution reactions (OER). The presence of a hydroxyplatinum intermediate, Pt(OH)(ads), was proposed to be responsible for the anodic peaks of methanol oxidation in the less positive potential region on both positive and negative sweeps.
AB - The electrochemical and electrocatalytic properties of Ni-Pt codeposits for methanol oxidation in an alkaline medium were characterized by cyclic voltammetry. The Ni-Pt codeposit with ca. Pt 60 a/o was found to exhibit the maximal activity for the oxidation of methanol in the low potential range. The electrocatalytic activity of all Ni-Pt codeposits (before and after leaching) for methanol oxidation was found to depend on their original compositions/textural properties before leaching. The hydroxyl Pt(IV) species with a higher hydrated property possessed a higher activity for the methanol oxidation and oxygen evolution reactions (OER). The presence of a hydroxyplatinum intermediate, Pt(OH)(ads), was proposed to be responsible for the anodic peaks of methanol oxidation in the less positive potential region on both positive and negative sweeps.
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M3 - Article
VL - 30
SP - 515
EP - 524
JO - Journal of the Taiwan Institute of Chemical Engineers
JF - Journal of the Taiwan Institute of Chemical Engineers
SN - 1876-1070
IS - 6
ER -