کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1284194 1497977 2014 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cobalt and molybdenum activated electrodes in foam based alkaline electrolysis cells at 150–250 °C and 40 bar
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Cobalt and molybdenum activated electrodes in foam based alkaline electrolysis cells at 150–250 °C and 40 bar
چکیده انگلیسی


• A new type of alkaline electrolysis cell has been developed.
• Co- and Mo-oxide electro-catalysts on nickel foam based gas diffusion electrodes were used.
• Potassium hydroxide as electrolyte was immobilized in a porous SrTiO3 structure.
• The performance of the cells have been analyzed at 150–250 °C at 40 bar.
• Current densities of 1.1 A cm−2 and 2.3 A cm−2 have been measured at 1.5 V and 1.75 V.

A new type of alkaline electrolysis cells with nickel foam based gas diffusion electrodes and KOH (aq) immobilized in mesoporous SrTiO3 has been developed and tested at temperatures of 150 °C, 200 °C and 250 °C at a pressure of 40 bar. Two cells have been characterized during the 270 h long test, using impedance spectroscopy, cyclic voltammetry and chronoamperometry at an applied cell voltage of 1.5 V, 1.625 V and 1.75 V. The performance of the electrolysis cells was improved by the addition of cobalt oxide and molybdenum oxide as nano sized electro-catalysts. At 250 °C current densities of 1.1 A cm−2 and 2.3 A cm−2 were obtained at cell voltages of 1.5 V and 1.75 V, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 255, 1 June 2014, Pages 394–403
نویسندگان
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