Preparation of platinum and palladium films by MOCVD and their electrochemical properties

J. A. Montes De Oca; J. R. Vargas; J. Godinez

doi:10.1179/026708400322911555

Preparation of platinum and palladium films by MOCVD and their electrochemical properties

J. A. Montes De Oca, J. R. Vargas, J. Godinez

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Platinum and palladium films with various compositions and structures were prepared by metal organic chemical vapour deposition (MOCVD) by controlling the deposition conditions. The films were deposited as electrodes on zirconia solid electrolyte and their electrochemical properties were examined by impedance spectroscopy. Carbon containing (Pt-C and Pd-C) films consisted of agglomerated fine particles (2-5 nm in diameter) and exhibited higher electrode conductivities than conventional Pt paste electrodes at temperatures below 873 K. However, sintering of the fine particles and/or oxidation of impurity carbon or Pd spoil the electrochemical performance. On the other hand, two phase Pt-ZrO₂ films show promise as electrode materials for zirconia electrolyte at low temperatures because of their higher conductivity than Pt paste electrodes (below 973 K) and their thermal stability.

Original language	English
Pages (from-to)	66-69
Number of pages	4
Journal	Surface Engineering
Volume	16
Issue number	1
DOIs	https://doi.org/10.1179/026708400322911555
State	Published - 2000
Externally published	Yes

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title = "Preparation of platinum and palladium films by MOCVD and their electrochemical properties",

abstract = "Platinum and palladium films with various compositions and structures were prepared by metal organic chemical vapour deposition (MOCVD) by controlling the deposition conditions. The films were deposited as electrodes on zirconia solid electrolyte and their electrochemical properties were examined by impedance spectroscopy. Carbon containing (Pt-C and Pd-C) films consisted of agglomerated fine particles (2-5 nm in diameter) and exhibited higher electrode conductivities than conventional Pt paste electrodes at temperatures below 873 K. However, sintering of the fine particles and/or oxidation of impurity carbon or Pd spoil the electrochemical performance. On the other hand, two phase Pt-ZrO2 films show promise as electrode materials for zirconia electrolyte at low temperatures because of their higher conductivity than Pt paste electrodes (below 973 K) and their thermal stability.",

author = "{Montes De Oca}, {J. A.} and Vargas, {J. R.} and J. Godinez",

year = "2000",

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T1 - Preparation of platinum and palladium films by MOCVD and their electrochemical properties

AU - Montes De Oca, J. A.

AU - Vargas, J. R.

AU - Godinez, J.

PY - 2000

Y1 - 2000

N2 - Platinum and palladium films with various compositions and structures were prepared by metal organic chemical vapour deposition (MOCVD) by controlling the deposition conditions. The films were deposited as electrodes on zirconia solid electrolyte and their electrochemical properties were examined by impedance spectroscopy. Carbon containing (Pt-C and Pd-C) films consisted of agglomerated fine particles (2-5 nm in diameter) and exhibited higher electrode conductivities than conventional Pt paste electrodes at temperatures below 873 K. However, sintering of the fine particles and/or oxidation of impurity carbon or Pd spoil the electrochemical performance. On the other hand, two phase Pt-ZrO2 films show promise as electrode materials for zirconia electrolyte at low temperatures because of their higher conductivity than Pt paste electrodes (below 973 K) and their thermal stability.

AB - Platinum and palladium films with various compositions and structures were prepared by metal organic chemical vapour deposition (MOCVD) by controlling the deposition conditions. The films were deposited as electrodes on zirconia solid electrolyte and their electrochemical properties were examined by impedance spectroscopy. Carbon containing (Pt-C and Pd-C) films consisted of agglomerated fine particles (2-5 nm in diameter) and exhibited higher electrode conductivities than conventional Pt paste electrodes at temperatures below 873 K. However, sintering of the fine particles and/or oxidation of impurity carbon or Pd spoil the electrochemical performance. On the other hand, two phase Pt-ZrO2 films show promise as electrode materials for zirconia electrolyte at low temperatures because of their higher conductivity than Pt paste electrodes (below 973 K) and their thermal stability.

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U2 - 10.1179/026708400322911555

DO - 10.1179/026708400322911555

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VL - 16

SP - 66

EP - 69

JO - Surface Engineering

JF - Surface Engineering

IS - 1

ER -

Preparation of platinum and palladium films by MOCVD and their electrochemical properties

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