کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1295823 | 1498416 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical properties and chemical stabilities of (NH4)2SO4/TiO2 composites at intermediate temperatures
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A proton-conductive electrolyte of (NH4)2SO4/TiO2 composite was synthesized, and its proton conductivity and chemical stability at intermediate temperatures were investigated. In the composite, partial decomposition of (NH4)2SO4 occurred at around 250 °C, and the resulting materials showed high proton conductivity. The highest conductivity achieved was 15 and 35 mS cm− 1 under dry and wet atmospheres at 250 °C, respectively. The temperature dependences of the conductivity were almost reversible in any conditions investigated, and the composite was relatively stable. Under a hydrogen atmosphere, however, the reduction of (NH4)2SO4 phase occurred and the formation of H2S was observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 176, Issues 31–34, October 2005, Pages 2467–2470
Journal: Solid State Ionics - Volume 176, Issues 31–34, October 2005, Pages 2467–2470
نویسندگان
Hiroki Muroyama, Toshiaki Matsui, Ryuji Kikuchi, Koichi Eguchi,