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    • 6. 发明申请
    • PRODUCTION METHOD FOR A NANOCOMPOSITE HAVING IMPROVED THERMOELECTRIC EFFICIENCY, AND NANOCOMPOSITES PRODUCED THEREBY
    • 具有改进的热电效率的纳米复合材料的生产方法和生产的纳米复合材料
    • WO2011059185A2
    • 2011-05-19
    • PCT/KR2010007244
    • 2010-10-21
    • UNIV EWHA IND COLLABORATIONKIM SUNG-JINHAN MI-KYUNGKIM HEEJIN
    • KIM SUNG-JINHAN MI-KYUNGKIM HEEJIN
    • H01L35/16
    • The present invention relates to a production method for a nanocomposite having improved thermoelectric efficiency and to nanocomposites produced thereby, and more specifically relates to a production method for a nanocomposite having improved thermoelectric efficiency, comprising the steps of: producing a MTe (M = Cd or Zn) by adding a surfactant to a surface-treated MO having a coordinating ligand, and then injecting Te metal powder at high-temperature (Step 1); producing an MTe-NTe (N = Pb or Sn) having a core-shell structure by injecting an N precursor into the MTe produced in Step 1 (Step 2); and mixing bulk Nte with the nanoparticulate MTe-NTe produced in Step 2 and carrying out a preliminary heat treatment and then a heat treatment (Step 3); and also relates to nanocomposites obtained by the mixing of bulk NTe (N = Pb or Sn) with MTe-NTe nanoparticles (M = Cd or Zn) having a core-shell structure of a form in which the NTe forms a sphere surrounding the circumference of spherical nanoparticulate MTe. The production method for a nanocomposite having improved thermoelectric efficiency according to the present invention can be used to advantage for thermoelectric materials in the fields of thermoelectric cooling and thermoelectric electrical power generation since it allows the high-temperature injection method to be used in order to produce core-shell nanoparticles of uniform size, and PbTe or SnTe of bulk size is mixed in to produce a nanocomposite, thereby simultaneously controlling both the thermal and the electrical properties and so exhibiting improved thermoelectric efficiency.
    • 本发明涉及具有改善的热电效率的纳米复合材料的制造方法和由此制备的纳米复合材料的制造方法,更具体地说涉及一种具有改进的热电效率的纳米复合材料的制造方法,包括以下步骤:制备MTe(M = Cd或 Zn),然后在高温下注入Te金属粉末(步骤1),将表面活性剂添加到具有配位配体的表面处理的MO中。 通过将N前体注入到步骤1(步骤2)中制备的MTe中来生产具有核 - 壳结构的MTe-NTe(N = Pb或Sn); 并将大块Nte与步骤2中生产的纳米颗粒MTe-NTe混合并进行预热处理,然后进行热处理(步骤3); 并且还涉及通过将本体NTe(N = Pb或Sn)与具有核壳结构的MTe-NTe纳米颗粒(M = Cd或Zn)混合而获得的纳米复合材料,其中NTe形成围绕圆周的球体 球形纳米颗粒MTe。 根据本发明的具有改进的热电效率的纳米复合材料的制造方法可以用于热电冷却和热电发电领域的热电材料,因为它允许使用高温注射方法来生产 将尺寸均匀的核 - 壳纳米粒子和体积尺寸的PbTe或SnTe混合以制备纳米复合材料,从而同时控制热和电性质,并且因此表现出改善的热电效率。