Ananth, M.V. and Venkatesan, V. and Dakshinamurthi, K. (1998) Magnetization studies of chemically prepared manganese dioxides. Journal of Power Sources, 72 (01). 099-102. ISSN 0378-7753

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A study is made of the magnetization properties of commercial, chemically prepared, manganese dioxides which are intended for use in dry cells, zinc alkaline cells and magnesium cells. The technique employs a vibrating sample magnetometer and the properties are measured as a function of applied fields at room temperature. A correlation is found between the shift of the (411) XRD peak and the magnetization behaviour. The results indicate that the magnetizability that is observed in these mostly α-phase containing samples can be accounted for by the average Mn-Mn distance and the consequent interactions between manganese spins mediated by O2- and OH-. Of particular interest to magnetic moments of MnO2 samples with traces of δ phases is the prediction that the extent of the modification of the birnessite phase has a significant influence

Item Type: Article
Uncontrolled Keywords: Manganese dioxide; Magnetization; Crystal structure; Mn-Mn couplings; Phase composition; Battery
Subjects: Electrochemical Power Sources
Depositing User: ttbdu cecri
Date Deposited: 04 May 2012 10:01
Last Modified: 04 May 2012 10:01

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