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    • 4. 发明申请
    • METHOD FOR MANUFACTURING METAL NANOPARTICLES BY USING PHASE TRANSITION REDUCTION, AND METAL INK COMPRISING METAL NANOPARTICLES MANUFACTURED THEREBY
    • 通过使用相变过渡制造金属纳米粒子的方法和包含金属纳米粒子的金属油墨制造的
    • US20150217374A1
    • 2015-08-06
    • US14422425
    • 2013-05-09
    • SAMSUNG FINE CHEMICALS CO., LTD
    • Sung Soon KimEui Hyun RyuChan Hyuk ParkMi Young KimKyung Yol Yon
    • B22F9/24C22C5/06C22B3/00H01B1/02
    • B22F9/24C09C1/62C09D11/52C22B11/04C22C5/06H01B1/02
    • A method of preparing metal nanoparticles using a phase transfer reduction method in which a reduction reaction is adjusted by distribution equilibrium between an intermediate formed by a coordinate bond between a capping material and various metal precursors in the form of an organic phase and a reducing agent present in an aqueous phase, and a metal ink prepared from the metal nanoparticles. The method of preparing metal nanoparticles includes dissolving a metal precursor and a capping agent in an organic phase, dissolving a reducing agent in an aqueous phase, mixing the organic phase and the aqueous phase to form a precipitate, separating the precipitate, and drying the separated precipitate. The metal nanoparticles prepared using the method can be prepared to have various particle sizes according to the kind of precursors and a length of an alkyl chain of an amine used as the capping agent. As a self-quenching reaction in which growth of the nanoparticles in the aqueous layer is stopped takes place since the nanoparticle precipitate into the aqueous layer from the organic layer due to a difference in density of the metal nanoparticles formed during a reaction, a particle size of the metal nanoparticles can be easily controlled, and excellent processability in which the metal nanoparticles are easily separated/purified from the organic layer in which most reaction by-products are present can be ensured. Also, as the metal nanoparticles having various particle sizes are able to be prepared, a metal ink having various sintering temperatures spanning from a low temperature to a high temperature can be prepared using the metal nanoparticles.
    • 一种使用相转移还原法制备金属纳米粒子的方法,其中还原反应是通过由封盖材料与各种有机相形式的金属前体之间的配位键形成的中间体与还原剂之间的分布平衡来调节的 在水相中,和由金属纳米颗粒制备的金属油墨。 制备金属纳米颗粒的方法包括将金属前体和封端剂溶解在有机相中,将还原剂溶解在水相中,混合有机相和水相以形成沉淀物,分离沉淀物,并干燥分离的 沉淀。 使用该方法制备的金属纳米颗粒可以根据前体的种类和用作封端剂的胺的烷基链的长度制备为具有各种粒径。 由于纳米颗粒由于在反应期间形成的金属纳米颗粒的密度差而从有机层沉淀到水层中,所以发生水层中纳米颗粒的生长停止的自熄反应发生, 可以容易地控制金属纳米颗粒,并且可以确保金属纳米颗粒容易地从存在大多数反应副产物的有机层中分离/纯化的优异的加工性。 另外,由于可以制备具有各种粒径的金属纳米粒子,所以可以使用金属纳米粒子制备具有跨越低温至高温的各种烧结温度的金属油墨。
    • 5. 发明申请
    • METHOD FOR PREPARING LITHIUM METAL PHOSPHOR OXIDE
    • 制备锂金属磷酸氧化物的方法
    • US20150210546A1
    • 2015-07-30
    • US14419289
    • 2013-05-10
    • SAMSUNG FINE CHEMICALS CO., LTD
    • Hyun A SongDong Gyu ChangWoo Young Yang
    • C01B25/45
    • The present invention relates to a method for preparing a lithium metal phosphor oxide, the method including: mixing an iron salt solution and a phosphate solution in a reactor; applying a shearing force to the mixed solution in the reactor during the mixing to form a suspension containing nano-sized iron phosphate precipitate particles; obtaining the nano-sized iron phosphate particles from the suspension; and mixing the iron phosphate with a lithium raw material and performing firing, and the lithium metal phosphor oxide according to the present invention has an Equation of LiMnFePO4. Herein, M is selected from the group consisting of Ni, Co, Mn, Cr, Zr, Nb, Cu, V, Ti, Zn, Al, Ga, and Mg, and n is in a range of 0 to 1. According to the present invention, since calcination is performed at a temperature that is lower than that of another existing method, there is an effect of reducing a process cost, and the obtained lithium metal phosphor oxide prepared according to the method of the present invention has an olivine structure type.
    • 本发明涉及一种制备锂金属磷光体的方法,该方法包括:在反应器中混合铁盐溶液和磷酸盐溶液; 在混合期间对反应器中的混合溶液施加剪切力以形成含有纳米尺寸磷酸铁沉淀颗粒的悬浮液; 从悬浮液中获得纳米尺寸的磷酸铁颗粒; 并将磷酸铁与锂原料混合并进行焙烧,根据本发明的锂金属荧光体具有LiMnFePO4的方程式。 这里,M选自Ni,Co,Mn,Cr,Zr,Nb,Cu,V,Ti,Zn,Al,Ga和Mg,n在0〜1的范围内。 在本发明中,由于在低于另一现有方法的温度下进行煅烧,所以具有降低加工成本的效果,所得到的根据本发明方法制备的锂金属荧光体具有橄榄石 结构类型。