Preparation of complex copper aluminum double hydroxide phases from copper (II) ammine complex solutions

Yong Park In Yong Park, Kazuyuki Kuroda, Chuzo Kato

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    Abstract

    A complex copper aluminum double hydroxide phase with sulfate anions (sulfate phase), Cu0.67Al0.33(OH)2(SO4)0.15(CO3) 0.015·0.5H2O, was prepared by adding a mixed solution of aluminum sulfate and sodium hydroxide to a copper (II) ammine complex solution. Although the X-ray powder diffraction pattern of the sulfate phase was different from those of hydrotalcite-like compounds, the SEM, IR, thermoanalytical data, and anion exchange behavior suggested that the structure was lamellar. The basal spacing depended on the interlayer anion and increased in the following sequence: CO2- 3 s ̌Cl-<Br-<SO2- 4<NO- 3 <CH3OO-. Thermal decomposition processes were also investigated.

    Original languageEnglish
    Pages (from-to)197-203
    Number of pages7
    JournalSolid State Ionics
    Volume42
    Issue number3-4
    DOIs
    Publication statusPublished - 1990

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    ASJC Scopus subject areas

    • Electrochemistry
    • Physical and Theoretical Chemistry
    • Energy Engineering and Power Technology
    • Materials Chemistry
    • Condensed Matter Physics

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