Sol-Gel Preparation and Characterization of KxMnO2

doi:10.3969/j.cnki.jdxb.2016.05.011

Abstract

Abstract:

The sol-gel preparation and characterization of Mn-based K-intercalating compounds K_xMnO₂ were investigated.The objected materials were obtained by calcining gel precursors of K-contained manganese citrate complexes through a sol-gel route with using KHCO₃,Mn (Ac)2,and citric acid (CA) as raw materials,and the products were characterized by XRD,FTIR,and SEM.The results show that a crystal of K-intercalating compound K_xMnO₂ can be obtained which is cryptomelane-like in structure and has the channel structure of Mn₈O₁₆,when n(Mn)∶n(CA)=1，n(K)∶n(Mn)=0.17~0.3,and the calcining temperature is 800 ℃.The SEM image shows that the particles of this crystal compound have flake-like morphologies which are regular and flat.

Key words: K_xMnO₂, Mn-based K-intercalating compounds, sol-gel

HE Pingxiang,LIU Bo,YANG Yuhuan,QIU Youyou,ZHAO Jiuyi,LIU Shenglin,JIANG Jianbo. Sol-Gel Preparation and Characterization of K_xMnO₂[J]. Journal of Jishou University（Natural Sciences Edition), DOI: 10.3969/j.cnki.jdxb.2016.05.011.

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Sol-Gel Preparation and Characterization of K_xMnO₂

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