Ion-conductive and transparent resorcinol-formaldehyde hydrogels for electrochemical and solar applications

Amir Kaplan; Eli Korin; Leonid Soifer; Armand Bettelheim

doi:10.1149/2.014201esl

Ion-conductive and transparent resorcinol-formaldehyde hydrogels for electrochemical and solar applications

Amir Kaplan, Eli Korin, Leonid Soifer, Armand Bettelheim

Department of Chemical Engineering

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

9 Scopus citations

Abstract

Resorcinol-formaldehyde hydrogels equilibrated with concentrated liquid electrolytes show high ion-conductivities (up to 24 mScm^-1 for HCl-equilibrated hydrogel). Conventional electrochemistry can be conducted with electrodes cast in these hydrogels, serving as quasi-solid electrolytes. The hydrogels are also transparent, which makes them good candidates for application in light induced processes. The present paper demonstrates this use for the photoelectrochemical splitting of water. Hydrogel films, consisting of -αFe₂O₃ hematite and hydroquinone, serve as catalytic films for the photoanodic oxidation of water. The illumination maximum effect at pH 6 and 12 is obtained at biased potentials of +0.5 and +0.3 V vs. AgAgCl, respectively.

Original language	English
Pages (from-to)	F1-F4
Journal	Electrochemical and Solid-State Letters
Volume	15
Issue number	1
DOIs	https://doi.org/10.1149/2.014201esl
State	Published - 1 Jan 2012

ASJC Scopus subject areas

General Chemical Engineering
General Materials Science
Physical and Theoretical Chemistry
Electrochemistry
Electrical and Electronic Engineering

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abstract = "Resorcinol-formaldehyde hydrogels equilibrated with concentrated liquid electrolytes show high ion-conductivities (up to 24 mScm-1 for HCl-equilibrated hydrogel). Conventional electrochemistry can be conducted with electrodes cast in these hydrogels, serving as quasi-solid electrolytes. The hydrogels are also transparent, which makes them good candidates for application in light induced processes. The present paper demonstrates this use for the photoelectrochemical splitting of water. Hydrogel films, consisting of -αFe2O3 hematite and hydroquinone, serve as catalytic films for the photoanodic oxidation of water. The illumination maximum effect at pH 6 and 12 is obtained at biased potentials of +0.5 and +0.3 V vs. AgAgCl, respectively.",

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AU - Korin, Eli

AU - Soifer, Leonid

AU - Bettelheim, Armand

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N2 - Resorcinol-formaldehyde hydrogels equilibrated with concentrated liquid electrolytes show high ion-conductivities (up to 24 mScm-1 for HCl-equilibrated hydrogel). Conventional electrochemistry can be conducted with electrodes cast in these hydrogels, serving as quasi-solid electrolytes. The hydrogels are also transparent, which makes them good candidates for application in light induced processes. The present paper demonstrates this use for the photoelectrochemical splitting of water. Hydrogel films, consisting of -αFe2O3 hematite and hydroquinone, serve as catalytic films for the photoanodic oxidation of water. The illumination maximum effect at pH 6 and 12 is obtained at biased potentials of +0.5 and +0.3 V vs. AgAgCl, respectively.

AB - Resorcinol-formaldehyde hydrogels equilibrated with concentrated liquid electrolytes show high ion-conductivities (up to 24 mScm-1 for HCl-equilibrated hydrogel). Conventional electrochemistry can be conducted with electrodes cast in these hydrogels, serving as quasi-solid electrolytes. The hydrogels are also transparent, which makes them good candidates for application in light induced processes. The present paper demonstrates this use for the photoelectrochemical splitting of water. Hydrogel films, consisting of -αFe2O3 hematite and hydroquinone, serve as catalytic films for the photoanodic oxidation of water. The illumination maximum effect at pH 6 and 12 is obtained at biased potentials of +0.5 and +0.3 V vs. AgAgCl, respectively.

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Ion-conductive and transparent resorcinol-formaldehyde hydrogels for electrochemical and solar applications

Abstract

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