کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1295805 | 1498416 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and soft-chemical reactivity of layered potassium cobalt oxide
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis and soft-chemical reactivity of layered potassium cobalt oxide Synthesis and soft-chemical reactivity of layered potassium cobalt oxide](/preview/png/1295805.png)
چکیده انگلیسی
A layered potassium cobalt oxide of KxCoO2 (x = 0.55) was prepared by solid-state reaction between KO2 and Co3O4. We explored soft-chemical reactivities of this material in treatments with acid or bromine solutions by following compositional and structural changes by X-ray diffraction and chemical analysis. The acid treatment promoted K+/H3O+ exchange but concurrently induced the formation of CoOOH as a side product. The compound underwent oxidative deintercalation of K+ upon the action of Br2, which was accompanied by hydration. Reinsertion of alkali metal ions into the resulting Br2-treated sample could be attained by the treatment with corresponding hydroxide solutions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 176, Issues 31–34, October 2005, Pages 2367–2370
Journal: Solid State Ionics - Volume 176, Issues 31–34, October 2005, Pages 2367–2370
نویسندگان
Hirofumi Taniguchi, Yasuo Ebina, Kazunori Takada, Takayoshi Sasaki,