Measurement of water profiles released from composite material by using the SECM technique

This work proposes a novel protocol to evaluate a water profile inside polymers and composite materials at a microscopic scale. Scanning Electrochemical Microscopy (SECM) experiments are performed in a dry Room Temperature Ionic Liquid (RTIL) to detect water molecules coming from an organic matrix c...

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Bibliographic Details
Published inElectrochimica acta Vol. 464; p. 142952
Main Authors Trinh, D., Renaud, A., Valette, J., Mallarino, S., Touzain, S.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.10.2023
Elsevier
Subjects
Analytical chemistry
Chemical Sciences
Composite
Polymers
Room temperature ionic liquids (RTIL)
Scanning electrochemical microscopy (SECM)
Water profile
Scanning electrochemical microscopy (SECM)
Composite
Room temperature ionic liquids (RTIL)
Water profile
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Summary:This work proposes a novel protocol to evaluate a water profile inside polymers and composite materials at a microscopic scale. Scanning Electrochemical Microscopy (SECM) experiments are performed in a dry Room Temperature Ionic Liquid (RTIL) to detect water molecules coming from an organic matrix composite that was previously immersed water. Since the presence of water influences the viscosity of the RTIL, the electrochemical signal at the SECM tip is sensitive to the amount of water around the microelectrode. Several water profiles of dry, semi-saturated and saturated composite sample are obtained and compared. [Display omitted]
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2023.142952