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2010 | 117 | 1 | 86-90
Article title

Cobalt Additives Influence on Phase Composition and Defect Structure of Manganese Dioxide Prepared from Fluorine Containing Electrolytes

Content
Title variants
Languages of publication
EN
Abstracts
EN
Manganese dioxide samples were prepared from fluorine containing electrolytes with additives of Co^{2+} ions. Atomic absorption spectroscopy, thermogravimetric analysis, X-ray diffraction, scanning electron microscopy with energy dispersive X-ray analysis were the methods of the samples characterisation. Manganese dioxide at the presence of cobalt forms nanosized ramsdellite structure crystallites of mostly needle-like morphology with significant content of hydroxide groups. The main phase state in manganese dioxide samples obtained at the presence of cobalt is γ-MnO_{2} with ramsdellite structure and low content of intergrowth defects. The sample doped both with lithium and cobalt can be indexed to a hollandite-type structure (tetragonal; space group I4/m) of α-MnO_{2}.
Keywords
EN
Year
Volume
117
Issue
1
Pages
86-90
Physical description
Dates
published
2010-01
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv117z114kz
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