One-pot Syntheses of Spinel AB₂O₄ (A = Ni or Co, B = Mn or Fe) Microspheres with Different Hollow Interiors for Supercapacitors Application

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• 作者：Ge Liu ; Jie Shao ; Youjun Gao ; Zheng Chen and Qunting Qu
• 刊名：Chinese Journal of Chemistry
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：35
• 期：1
• 页码：67-72
• 全文大小：2715K
• ISSN：1614-7065

文摘

Spinel NiMn₂O₄, CoMn₂O₄, NiFe₂O₄ and CoFe₂O₄ hollow microspheres are prepared through an easy and general approach. The preparation procedures include the one-pot hydrothermal treatment of mixed metal salts and glucose, and subsequent calcination. The different penetration ability of Mn²⁺ and Fe³⁺ precursor ions into the interior of glucose-derived carbon microspheres results in single-shelled manganites and triple-shelled ferrites, respectively. Investigations on the electrochemical behaviors of the as-prepared four bimetal oxides show that they possess good supercapacitive properties in aqueous electrolytes.