Synthesis and Characterization of Flexible Hydrogel Electrodes for Electrochemical Impedance Measurements of Protective Coatings on Metal Sculptures | Zendy

England Alice H. | Zendy; Clare Tami Lasseter | Zendy

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Synthesis and Characterization of Flexible Hydrogel Electrodes for Electrochemical Impedance Measurements of Protective Coatings on Metal Sculptures

Author(s) -

England Alice H.,

Clare Tami Lasseter

Publication year - 2014

Publication title -

electroanalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 128

eISSN - 1521-4109

pISSN - 1040-0397

DOI - 10.1002/elan.201300653

Subject(s) - materials science , dielectric spectroscopy , electrolyte , electrode , electrochemistry , self healing hydrogels , conductivity , chemical engineering , characterization (materials science) , substrate (aquarium) , aqueous solution , composite material , nanotechnology , polymer chemistry , chemistry , organic chemistry , oceanography , geology , engineering

A novel conductive anionic hydrogel was synthesized for use as a solid electrolyte for electrochemical impedance spectroscopy (EIS) characterization of the barrier properties of protective coatings on outdoor metalworks, such as bronze sculptures. The AMPS‐co‐PAA hydrogel was soaked in a variety of aqueous salt solutions and characterized by swelling capacity and conductivity in order to determine the most appropriate gel/liquid electrolyte combination for use on culturally significant objects. K 2 PIPES‐equilibrated hydrogels were selected as the preferred electrodes for this particular application and were used to measure the impedance of a coated substrate, yielding spectra similar to those from standard liquid cells.

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