SYNTHESIS, CHARACTERIZATION AND LITHIUM INSERTION PROPERTIES OF α-, β- AND γ-MnO_2 MATERIALS PREPARED BY THE ELECTROCHEMICAL-HYDROTHERMAL METHOD

机译：电化学水热法制备的α-，β-和γ-MnO_2材料的合成，表征和锂嵌入性质

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MnO_2 materials with the α, β, γ structures, or mixtures α/γ, γ/β were obtained by oxidation under hydrothermal conditions of acidic MnSO_4 or A_2SO_4/MnSO_4 (A=Li, Na, K, NH_4) solutions. The structure of the material obtained is dependent on the synthesis conditions (temperature, pH, applied current density, presence or not of A~+). The γ-MnO_2 containing materials can be obtained over a wide range of P_r values, with relatively low levels of microtwinning defects. The physico-chemical properties and morphologies of the α, α/γ, and γ phases are presented and the relationships between these properties and the Li-insertion behavior are discussed.

机译：通过在酸性MnSO_4或A_2SO_4 / MnSO_4（A = Li，Na，K，NH_4）溶液的水热条件下氧化获得具有α，β，γ结构或混合物α/γ，γ/β的MnO_2材料。所获得的材料的结构取决于合成条件（温度，pH，施加的电流密度，是否存在A〜+）。可以在较宽的P_r值范围内获得含γ-MnO_2的材料，且微孪晶缺陷的含量相对较低。介绍了α，α/γ和γ相的理化性质和形态，并讨论了这些性质与锂插入行为之间的关系。

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来源
《Electrochemical Society International Symposium on New Trends in Intercalation Compounds for Energy Storage and Conversion; 20030430-20030502; Paris; FR》|2003年|P.429-440|共12页
会议地点 Paris(FR)
作者
Laurie I. Hill; Emilie Machefaux; Stephane Grolleau; Alain Verbaere; Dominique Guyomard;
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Institut des Materiaux Jean Rouxel, Laboratoire de Chimie des Solides CNRS-Universite de Nantes, 44322 Nantes Cedex 3, France;

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正文语种 eng
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SYNTHESIS, CHARACTERIZATION AND LITHIUM INSERTION PROPERTIES OF α-, β- AND γ-MnO_2 MATERIALS PREPARED BY THE ELECTROCHEMICAL-HYDROTHERMAL METHOD

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