Dilatometric and electrochemical studies on hydrogen transport through RuO2 coated on palladium

Y. Oren; A. Tamir; Y. Lederman; Z. Gavra

doi:10.1016/S0022-3697(03)00165-3

Dilatometric and electrochemical studies on hydrogen transport through RuO₂ coated on palladium

Y. Oren, A. Tamir, Y. Lederman, Z. Gavra

Department of Chemical Engineering

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

3 Scopus citations

Abstract

Combined electrochemical and dilatometry measurements were used to characterize the transport of hydrogen through thin RuO₂ layers coated on palladium wire electrodes. Hydrogen dissolved in aqueous solutions penetrated through the oxide in a pH-dependent mechanism that combined diffusion of molecular hydrogen and pH-dependent proton hopping through redox sites within the oxide lattice. When cathodically charged, hydrogen was generated and absorbed at the oxide-solution interface only after Ru (IV) reduction occurs, and then, transported into the metal.

Original language	English
Pages (from-to)	1395-1403
Number of pages	9
Journal	Journal of Physics and Chemistry of Solids
Volume	64
Issue number	8
DOIs	https://doi.org/10.1016/S0022-3697(03)00165-3
State	Published - 1 Aug 2003

Keywords

A. Metals
A. Oxides
D. Diffusion

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/S0022-3697(03)00165-3

Cite this

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title = "Dilatometric and electrochemical studies on hydrogen transport through RuO2 coated on palladium",

abstract = "Combined electrochemical and dilatometry measurements were used to characterize the transport of hydrogen through thin RuO2 layers coated on palladium wire electrodes. Hydrogen dissolved in aqueous solutions penetrated through the oxide in a pH-dependent mechanism that combined diffusion of molecular hydrogen and pH-dependent proton hopping through redox sites within the oxide lattice. When cathodically charged, hydrogen was generated and absorbed at the oxide-solution interface only after Ru (IV) reduction occurs, and then, transported into the metal.",

keywords = "A. Metals, A. Oxides, D. Diffusion",

author = "Y. Oren and A. Tamir and Y. Lederman and Z. Gavra",

note = "Funding Information: The study was supported by the Israel Council for Higher Education and the Israel Atomic Energy Commission. The authors wish to thank Ms H. Sela and Dr G. Kimmel for preparing XRD samples and interpreting the XRD results.",

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T1 - Dilatometric and electrochemical studies on hydrogen transport through RuO2 coated on palladium

AU - Oren, Y.

AU - Tamir, A.

AU - Lederman, Y.

AU - Gavra, Z.

N1 - Funding Information: The study was supported by the Israel Council for Higher Education and the Israel Atomic Energy Commission. The authors wish to thank Ms H. Sela and Dr G. Kimmel for preparing XRD samples and interpreting the XRD results.

PY - 2003/8/1

Y1 - 2003/8/1

N2 - Combined electrochemical and dilatometry measurements were used to characterize the transport of hydrogen through thin RuO2 layers coated on palladium wire electrodes. Hydrogen dissolved in aqueous solutions penetrated through the oxide in a pH-dependent mechanism that combined diffusion of molecular hydrogen and pH-dependent proton hopping through redox sites within the oxide lattice. When cathodically charged, hydrogen was generated and absorbed at the oxide-solution interface only after Ru (IV) reduction occurs, and then, transported into the metal.

AB - Combined electrochemical and dilatometry measurements were used to characterize the transport of hydrogen through thin RuO2 layers coated on palladium wire electrodes. Hydrogen dissolved in aqueous solutions penetrated through the oxide in a pH-dependent mechanism that combined diffusion of molecular hydrogen and pH-dependent proton hopping through redox sites within the oxide lattice. When cathodically charged, hydrogen was generated and absorbed at the oxide-solution interface only after Ru (IV) reduction occurs, and then, transported into the metal.

KW - A. Metals

KW - A. Oxides

KW - D. Diffusion

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DO - 10.1016/S0022-3697(03)00165-3

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VL - 64

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JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

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