The mixed-metal oxides of fluorinated ion-exchange polymer are used for as scavenger

The mixed-metal oxides of fluorinated ion-exchange polymer are used for as scavenger

  • CN 104,470,852 B
  • Filed: 07/09/2013
  • Issued: 07/16/2019
  • Est. Priority Date: 07/11/2012
  • Status: Active Grant
First Claim
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1. The mixed oxide of 1.Si and at least one metal M, the mixed oxide is for ion used in fuel cells applicationsExchange fluorination polymer film, the oxide contain inorganic group-SO3H the, wherein inorganic group-SO3H is relative to mixed at thisThe total amount for closing the atom of the metal M in oxide is at least 0.2%, and the mixed oxide passes through method comprising the following stepsPreparation:

  • a) providing includes SiO2, at least one metal M water soluble salt and at least one inorganic group-SO3The source of HAqueous suspension;

    B) make the suspension 30 °

    C to 100 °

    C at a temperature of reaction to form gel;

    C) at 30 °

    C to 180 °

    At a first temperature of C and then the gel is heat-treated under 180 °

    C to 350 °

    C of second temperature to obtain in solid formThe mixed oxide.

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