引用本文:
张启卫, 钟建生, 黄行康, 黄河宁, 杨勇. δ-MnO2的制备与性能[J]. 应用化学,
2005, 22(8): 908-911.
Citation: ZHANG Qi-Wei, ZHONG Jian-Sheng, HUANG Xing-Kang, HUANG He-Ning, YANG Yong. Preparation and Properties of δ-MnO2[J]. Chinese Journal of Applied Chemistry, 2005, 22(8): 908-911.
Citation: ZHANG Qi-Wei, ZHONG Jian-Sheng, HUANG Xing-Kang, HUANG He-Ning, YANG Yong. Preparation and Properties of δ-MnO2[J]. Chinese Journal of Applied Chemistry, 2005, 22(8): 908-911.
δ-MnO2的制备与性能
English
Preparation and Properties of δ-MnO2
Abstract:
δ-Manganese dioxide (δ-MnO2) was prepared from a Mn(Ⅱ) salt oxidized by ammonium persulfate ((NH4)2S2O8).The crystalline form of the δ-MnO2 was affected by the molar ratio of Mn2+to OH-,reaction temperature,and the amount of (NH4)2S2O8.The structure of the δ-MnO2 was characterized by means of X-ray diffraction (XRD) and Infrared spectroscopy (IR).Its electrochemical performance was also studied via cyclic voltammetry and constant current charge/discharge experiments.The results indicate that as-prepared δ-MnO2 has a good layer-structure and a high discharge capacity (~160 mA·h/g,2.0~4.5 V).
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Key words:
- δ-MnO2
- / preparation
- / property
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