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Issue 6, 2013
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Hydrothermal synthesis of one-dimensional yttrium hydroxide particles by a two-step alkali-addition method

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Abstract

One-dimensional yttrium hydroxide particles of hexagonal crystal structure were selectively synthesized through a hydrothermal reaction of yttrium chloride solution that was alkalized by two-step addition of sodium hydroxide solution. Keeping the YCl3 solution at pH ∼ 6.8 for a few minutes before raising the pH to the sufficient level (pH ∼ 13) was concluded to be the practical requirement for the one-dimensional Y(OH)3 particle formation. This requirement was successfully achieved by the two-step addition procedure that was applicable to adjust the pH values independently. The size distribution of one-dimensional particles was changed depending on the interval time between alkali-additions and on the pH of the hydrothermal reaction. The formation mechanism of the one-dimensional particles was also discussed.

Graphical abstract: Hydrothermal synthesis of one-dimensional yttrium hydroxide particles by a two-step alkali-addition method

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Publication details

The article was received on 13 Sep 2012, accepted on 18 Oct 2012 and first published on 24 Oct 2012


Article type: Paper
DOI: 10.1039/C2CE26485D
CrystEngComm, 2013,15, 1061-1067

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    Hydrothermal synthesis of one-dimensional yttrium hydroxide particles by a two-step alkali-addition method

    F. Shiba, T. Tamagawa, T. Kojima and Y. Okawa, CrystEngComm, 2013, 15, 1061
    DOI: 10.1039/C2CE26485D

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