Epoxy-Encapsulated Ceramic Superconductor Microelectrodes

Rebecca O. Gollmar; John T. McDevitt; Royce W. Murray

doi:10.1149/1.2096532

Epoxy-Encapsulated Ceramic Superconductor Microelectrodes

Rebecca O. Gollmar, John T. McDevitt, Royce W. Murray

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

Abstract

A procedure is outlined for fabricating well-behaved microelectrodes from ceramic pellets of YBa₂Cu₃07 and Bi₂Sr₂CaCu₂0₈which involves systematic polishing of an epoxy-encapsulated superconductor chip, under Et₄NC104/acetonitrile solution, to a potentiometric end point Voltammetry of the resulting microelectrodes in acetonitrile is illustrated and compared to that arising from alternative superconductor electrode geometries. The microelectrodes have active electrode surface areas ranging from 2 x 10^-6to 3 x 10^- ⁴cm², as characterized electrochemically and microscopically. The results discussed herein are significant steps toward developing the methodology necessary to study the electrochemical response of high temperature superconductor phases at temperatures below their superconductor critical temperature.

Original language	English (US)
Pages (from-to)	3696-3701
Number of pages	6
Journal	Journal of the Electrochemical Society
Volume	136
Issue number	12
DOIs	https://doi.org/10.1149/1.2096532
State	Published - Dec 1989

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Condensed Matter Physics
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

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abstract = "A procedure is outlined for fabricating well-behaved microelectrodes from ceramic pellets of YBa2Cu307 and Bi2Sr2CaCu208which involves systematic polishing of an epoxy-encapsulated superconductor chip, under Et4NC104/acetonitrile solution, to a potentiometric end point Voltammetry of the resulting microelectrodes in acetonitrile is illustrated and compared to that arising from alternative superconductor electrode geometries. The microelectrodes have active electrode surface areas ranging from 2 x 10-6to 3 x 10- 4cm2, as characterized electrochemically and microscopically. The results discussed herein are significant steps toward developing the methodology necessary to study the electrochemical response of high temperature superconductor phases at temperatures below their superconductor critical temperature.",

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AB - A procedure is outlined for fabricating well-behaved microelectrodes from ceramic pellets of YBa2Cu307 and Bi2Sr2CaCu208which involves systematic polishing of an epoxy-encapsulated superconductor chip, under Et4NC104/acetonitrile solution, to a potentiometric end point Voltammetry of the resulting microelectrodes in acetonitrile is illustrated and compared to that arising from alternative superconductor electrode geometries. The microelectrodes have active electrode surface areas ranging from 2 x 10-6to 3 x 10- 4cm2, as characterized electrochemically and microscopically. The results discussed herein are significant steps toward developing the methodology necessary to study the electrochemical response of high temperature superconductor phases at temperatures below their superconductor critical temperature.

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Epoxy-Encapsulated Ceramic Superconductor Microelectrodes

Abstract

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