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Fujimoto, Kenjiro; Suzuki, Jun; Mori, Toshiyuki; Watanabe, Mamoru

doi:10.1023/a:1008722824410

Cited by 8 publications

(1 citation statement)

References 9 publications

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“…These chains share common vertices in such a fashion that they form square tunnels in which alkali or alkaline-earth metal ions are arranged [1,2]. Tens of phases with hollandite-type structure were synthesized by the method of solid-phase reactions [3] and by sol-gel procedures [4][5][6]. These phases exhibit properties of unidimensional ionic conductors [7][8][9] and catalysts [6,10,11]; owing to high chemical and thermal stability, they were suggested as matrices for the disposal of radioactive cesium and strontium [12,13].…”

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confidence: 99%

Sol-gel synthesis and leaching of potassium hollandites

et al. 2015

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The results of a physicochemical study of hollandite-type minerals synthesized by the citrate-nitrate sol-gel method in the K 2 O-M 2 O 3 -TiO 2 systems (M = Ga, Fe, Сr) and subjected to leaching in a mixture of hydrogen peroxide and sulfuric acid are reported. The materials thus prepared are stable up to 400°С and decompose above this temperature. The experiments performed confi rm a decrease in the potassium content of these triple oxides upon such chemical treatment by 26-36% of the initial level, which makes these oxides promising for use as electrode materials for lithium-ion batteries.

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