title: Direct ethanol fuel cell using hydrotalcite clay as a hydroxide ion conductive electrolyte.
abstract: 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.
authors.affiliation: Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan. tadanaga@chem.osakafu-u.ac.jp
authors.forename: Kiyoharu
authors.initials: K
authors.lastname: Tadanaga
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Furukawa
authors.forename: Akitoshi
authors.initials: A
authors.lastname: Hayashi
authors.forename: Masahiro
authors.initials: M
authors.lastname: Tatsumisago
mesh_terms: D000536:Aluminum Hydroxide / Q000737:chemistry*; D000538:Aluminum Silicates / Q000737:chemistry*; D000077215:Clay; D004553:Electric Conductivity; D004563:Electrochemistry / Q000379:methods*; D004573:Electrolytes / Q000737:chemistry; D000431:Ethanol / Q000737:chemistry*; D008276:Magnesium Hydroxide / Q000737:chemistry*; D013696:Temperature
chemical_list: D000538:Aluminum Silicates; D004573:Electrolytes; C010467:hydrotalcite; D000431:Ethanol; D000536:Aluminum Hydroxide; D008276:Magnesium Hydroxide; D000077215:Clay