A kind of ultra-long silver nanowire and its preparation method and application

A kind of ultra-long silver nanowire and its preparation method and application

  • CN 106,077,704 B
  • Filed: 08/10/2016
  • Issued: 11/08/2019
  • Est. Priority Date: 08/10/2016
  • Status: Active Grant
First Claim
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1. a kind of preparation method of ultra-long silver nanowire, which comprises the following steps:

  • 1) using polyalcohol as solvent, dissolution inhibitor, inhibitor polyhydric alcohol solutions of the preparation concentration in 2mmol/L;

    2) it weighs the PVP that quality is 0.2g to be dissolved in inhibitor polyhydric alcohol solutions, is stirred to clarify, be denoted as with magnetic stirrerSolution A, for use;

    The K value of the PVP is K-30;

    3) AgNO that quality is 0.1699g is weighed3It is added in polyalcohol, dissolution is vibrated in supersonic wave cleaning machine, is configured to concentrationFor 50mmol/L metal ion solution, it is denoted as solution B;

    4) solution B is added drop-wise in solution A with the rate of 0.4ml/s, magnetic agitation 13min obtains mixed solution;

    5) mixed solution is moved in hydrothermal reaction kettle, trace meter silk is added thereto, is then placed in hydrothermal reaction kettle pre-If temperature in 170 DEG C of incubator, is reacted 2.5 hours, after completion of the reaction, hydrothermal reaction kettle is taken out, cooled to room temperatureObtain reaction product;

    6) by reaction product ethyl alcohol centrifuge washing, ethyl alcohol natural subsidence is then added, removes upper solution, after being finally centrifugedProduct be scattered in ethyl alcohol up to ultra-long silver nanowire, save backup;

    The polyalcohol is ethylene glycol, and the inhibitor is Na2S, the wire are Fe;

    It is received prepared by the preparation methodThe draw ratio of rice silver wire is 1111;

    Alternatively,1) using polyalcohol as solvent, dissolution inhibitor, inhibitor polyhydric alcohol solutions of the preparation concentration in 2mmol/L;

    2) it weighs the PVP that quality is 0.1g to be dissolved in inhibitor polyhydric alcohol solutions, is stirred to clarify, be denoted as with magnetic stirrerSolution A, for use;

    The K value of the PVP is K-90;

    3) AgNO that quality is 0.1699g is weighed3It is added in polyalcohol, dissolution is vibrated in supersonic wave cleaning machine, is configured to concentrationFor 50mmol/L metal ion solution, it is denoted as solution B;

    4) solution B is added drop-wise in solution A with the rate of 0.5ml/s, magnetic agitation 5-20min obtains mixed solution;

    5) mixed solution is moved in hydrothermal reaction kettle, trace meter silk is added thereto, is then placed in hydrothermal reaction kettle pre-If temperature in 170 DEG C of incubator, is reacted 3 hours, after completion of the reaction, hydrothermal reaction kettle is taken out, cooled to room temperature obtainsTo reaction product;

    6) by reaction product ethyl alcohol centrifuge washing, ethyl alcohol natural subsidence is then added, removes upper solution, after being finally centrifugedProduct be scattered in ethyl alcohol up to ultra-long silver nanowire, save backup;

    The polyalcohol is glycerine, and the inhibitor is Na2S, the wire are Zn;

    It is received prepared by the preparation methodThe draw ratio of rice silver wire is 1250;

    Alternatively,1) using polyalcohol as solvent, dissolution inhibitor, inhibitor polyhydric alcohol solutions of the preparation concentration in 0.5mmol/L;

    2) it weighs the PVP that quality is 0.2g to be dissolved in inhibitor polyhydric alcohol solutions, is stirred to clarify, be denoted as with magnetic stirrerSolution A, for use;

    The K value of the PVP is K-15;

    3) AgNO that quality is 0.1g is weighed3It is added in polyalcohol, dissolution is vibrated in supersonic wave cleaning machine, being configured to concentration is30mmol/L metal ion solution, is denoted as solution B;

    4) solution B is added drop-wise in solution A with the rate of 0.2ml/s, magnetic agitation 5min obtains mixed solution;

    5) mixed solution is moved in hydrothermal reaction kettle, trace meter silk is added thereto, is then placed in hydrothermal reaction kettle pre-If temperature in 160 DEG C of incubator, is reacted 4 hours, after completion of the reaction, hydrothermal reaction kettle is taken out, cooled to room temperature obtainsTo reaction product;

    6) by reaction product ethyl alcohol centrifuge washing, ethyl alcohol natural subsidence is then added, removes upper solution, after being finally centrifugedProduct be scattered in ethyl alcohol up to ultra-long silver nanowire, save backup;

    The polyalcohol is propylene glycol, and the inhibitor is Na2S2O3, the wire is Fe;

    Prepared by the preparation methodThe draw ratio of nano-silver thread is 1000.

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