Preparation method of iridium tin metal oxide

Preparation method of iridium tin metal oxide

  • CN 103,880,094 A
  • Filed: 12/21/2012
  • Published: 06/25/2014
  • Est. Priority Date: 12/21/2012
  • Status: Active Application
First Claim
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1. a preparation method for iridium tin metal oxide compound, is characterized in that:

  • described metal oxide useful molecules formula Ir xsn 1-xo 2represent wherein 0≤

    x<

    1;

    Described metal oxide is auxiliary synthetic with tensio-active agent, and preparation process is as follows;

    1) by surfactant dissolves in the deionized water of 5-80 DEG C, add Ir, the Sn metal-salt precursor of solubility, stir 0.5-24h, it is fully dissolved;

    Described tensio-active agent is 0.1-5wt.% in the amount of deionized water, and total metal molar concentration that described solubility Ir, Sn metal-salt are dissolved in deionized water is 0.01~

    0.1M;

    2) further reduce above-mentioned solution, adopt NaBH 4or KBH 4drop to above-mentioned steps 1 containing the solution of tensio-active agent) in the solution that stirs, the reduction reaction time is 0.5~

    24h, temperature of reaction is 5-80 DEG C;

    3) by above-mentioned steps

         2) gained solution is at 5~

    80 DEG C after still aging 0~

    12d, and it is neutral that separation, solids wash to solution, and 20~

    80 DEG C are dry, after grinding, obtain the Ir of pre-synthesis xsn 1-xo 2pressed powder;

    4) in air or oxygen atmosphere, above-mentioned pressed powder is moved to tubular type kiln roasting, from room temperature temperature programming to 300~

    800 DEG C, 1~

    10 DEG C of min of temperature programming speed -1, then in 300~

    800 DEG C of maturing temperatures, roasting time 0.5~

    6h, makes final product Ir xsn 1-xo 2.

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