Direct Ethanol Fuel Cell Using Hydrotalcite Clay as a Hydroxide Ion Conductive Electrolyte

An alkaline‐type direct ethanol fuel cell (DEFC) using a natural clay electrolyte with non‐platinum catalysts is proposed. So‐called hydrotalcite clay, Mg–Al layered double hydroxide intercalated with CO32−, is shown to be a hydroxide ion conductor. An alkaline‐type DEFC using this natural clay as t...

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Bibliographic Details
Published inAdvanced materials (Weinheim) Vol. 22; no. 39; pp. 4401 - 4404
Main Authors Tadanaga, Kiyoharu, Furukawa, Yoshihiro, Hayashi, Akitoshi, Tatsumisago, Masahiro
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 15.10.2010
WILEY‐VCH Verlag
Subjects
alkaline type fuel cells
Aluminum Hydroxide - chemistry
Aluminum Silicates - chemistry
clay materials
direct ethanol fuel cells
Electric Conductivity
Electrochemistry - methods
Electrolytes - chemistry
Ethanol - chemistry
hydroxide conductors
layered double hydroxides
Magnesium Hydroxide - chemistry
Temperature
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Summary:An alkaline‐type direct ethanol fuel cell (DEFC) using a natural clay electrolyte with non‐platinum catalysts is proposed. So‐called hydrotalcite clay, Mg–Al layered double hydroxide intercalated with CO32−, is shown to be a hydroxide ion conductor. An alkaline‐type DEFC using this natural clay as the electrolyte and aqueous solution of ethanol and potassium hydroxide as a source of fuel exhibits excellent electrochemical performance from room temperature to 80 °C.
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ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201001766