Search results

Sort By:

Limit search:

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

100%

Sokolsky G., Ivanov S., Ivanova N., Boldurev Y., Kobulinskaya O., Demchenko M.

issue 1

86-90

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}.

Refine search results

1 Acta Physica Polonica A

1 2010

1 Boldurev Y.

1 Demchenko M.

1 Ivanov S.

1 Ivanova N.

1 Kobulinskaya O.

1 Sokolsky G.

Search results

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