Carbon-coated fluorophosphoric acid vanadium potassium carbon nano tube compound material and preparation method and application

Carbon-coated fluorophosphoric acid vanadium potassium carbon nano tube compound material and preparation method and application

  • CN 108,365,199 A
  • Filed: 02/11/2018
  • Published: 08/03/2018
  • Est. Priority Date: 02/11/2018
  • Status: Active Application
First Claim
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1. a kind of preparation method of carbon-coated fluorophosphoric acid vanadium potassium carbon nano tube compound material, which is characterized in that including walking as followsSuddenly:

  • S1:

    Vanadic salts, phosphate, sylvite, Fluorine source and reducing agent are rubbed by v element, P elements, potassium element, fluorine element and reducing agentThat ratio 1:

    1:

    1~1.8:

    1~1.8:

    0.8~1.5 ratio is dissolved in deionized water, obtains mixed raw material, by the mixingRaw material carries out water-bath, and reaction temperature is 80~100 DEG C, 30~60min of reaction time, and it is molten to obtain fluorophosphoric acid vanadium potassium presomaLiquid;

    S2:

    Carbon nanotube is added in the precursor solution being prepared to S1, ultrasonic mixing is simultaneously spray-dried, and powder is obtainedShape presoma;

    S3:

    The powdered presoma that S2 is obtained is calcined under an inert atmosphere, prior to 200~300 DEG C 3~5h of calcining;

    Then at 6006~10h is calcined at~800 DEG C to get to the composite material.

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