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    GAS SENSOR AND MEMBER USING METAL OXIDE SEMICONDUCTOR NANOFIBERS INCLUDING NANOPARTICLE CATALYST FUNCTIONALIZED BY BIFUNCTIONAL NANO-CATALYST INCLUDED WITHIN APOFERRITIN, AND MANUFACTURING METHOD THEREOF
    4.
    发明申请
    GAS SENSOR AND MEMBER USING METAL OXIDE SEMICONDUCTOR NANOFIBERS INCLUDING NANOPARTICLE CATALYST FUNCTIONALIZED BY BIFUNCTIONAL NANO-CATALYST INCLUDED WITHIN APOFERRITIN, AND MANUFACTURING METHOD THEREOF 审中-公开

    公开(公告)号：US20190154645A1

    公开(公告)日：2019-05-23

    申请号：US16257354

    申请日：2019-01-25

    Applicant: Korea Advanced Institute of Science and Technology

    Inventor： II-Doo KIM ,  Sang-Joon KIM ,  Seon-Jin CHOI

    IPC: G01N31/10 ,  C04B35/622 ,  D01D5/00 ,  D01F9/10 ,  B82Y30/00

    Abstract: The inventive concepts relate to a member for a gas sensor, a gas sensor using the same and a manufacturing method thereof, and more particularly, to a member for a gas sensor using a one-dimensional metal oxide nanofiber complex material containing hetero nanoparticle catalysts synthesized using apo-ferritins, a gas sensor using the same, and a manufacturing method thereof.According to embodiments of the inventive concepts, apo-ferritins containing hetero nanoparticle catalysts are mixed with an electrospinning solution, the mixture solution is electrospun to form complex nanofibers, and then a high-temperature thermal treatment process is performed to remove the apo-ferritins. Thus, the hetero nanoparticle catalysts are uniformly fastened to an inside and a surface of one-dimensional metal oxide nanofibers to form a member for a gas sensor. As a result, the member for a gas sensor has a high-sensitivity characteristic capable of sensing a very small amount of a gas and excellent selectivity capable of sensing various gases. In addition, a catalyst effect is maximized by the hetero nanoparticle catalysts uniformly distributed without aggregation. Furthermore, the member for a gas sensor and the gas sensor using the same can be mass-produced by a process method capable of effectively forming pores and of fastening high-performance catalysts.

    GAS SENSOR AND MEMBER USING METAL OXIDE SEMICONDUCTOR NANOFIBERS INCLUDING NANOPARTICLE CATALYST FUNCTIONALIZED BY BIFUNCTIONAL NANO-CATALYST INCLUDED WITHIN APOFERRITIN, AND MANUFACTURING METHOD THEREOF
    5.
    发明申请
    GAS SENSOR AND MEMBER USING METAL OXIDE SEMICONDUCTOR NANOFIBERS INCLUDING NANOPARTICLE CATALYST FUNCTIONALIZED BY BIFUNCTIONAL NANO-CATALYST INCLUDED WITHIN APOFERRITIN, AND MANUFACTURING METHOD THEREOF 审中-公开
    气体传感器和使用金属氧化物半导体纳米纤维的成员，其中包括由APOFERRITIN中包含的双官能纳米催化剂功能化的纳米催化剂及其制造方法

    公开(公告)号：US20160077069A1

    公开(公告)日：2016-03-17

    申请号：US14855975

    申请日：2015-09-16

    Applicant: Korea Advanced Institute of Science and Technology

    Inventor： II-Doo Kim ,  Sang-Joon KIM ,  Seon-Jin CHOI

    IPC: G01N31/10 ,  D01D10/02 ,  D01F9/10 ,  D01D5/00

    CPC classification number: G01N31/10 ,  B82Y30/00 ,  C04B35/62227 ,  C04B35/62231 ,  D01D5/0038 ,  D01F9/10

    Abstract: The inventive concepts relate to a member for a gas sensor, a gas sensor using the same and a manufacturing method thereof, and more particularly, to a member for a gas sensor using a one-dimensional metal oxide nanofiber complex material containing hetero nanoparticle catalysts synthesized using apo-ferritins, a gas sensor using the same, and a manufacturing method thereof.According to embodiments of the inventive concepts, apo-ferritins containing hetero nanoparticle catalysts are mixed with an electrospinning solution, the mixture solution is electrospun to form complex nanofibers, and then a high-temperature thermal treatment process is performed to remove the apo-ferritins. Thus, the hetero nanoparticle catalysts are uniformly fastened to an inside and a surface of one-dimensional metal oxide nanofibers to form a member for a gas sensor. As a result, the member for a gas sensor has a high-sensitivity characteristic capable of sensing a very small amount of a gas and excellent selectivity capable of sensing various gases. In addition, a catalyst effect is maximized by the hetero nanoparticle catalysts uniformly distributed without aggregation. Furthermore, the member for a gas sensor and the gas sensor using the same can be mass-produced by a process method capable of effectively forming pores and of fastening high-performance catalysts.

    Abstract translation: 本发明构思涉及一种用于气体传感器的构件，使用该气体传感器的气体传感器及其制造方法，更具体地说，涉及一种使用含有杂质纳米颗粒催化剂的一维金属氧化物纳米纤维复合材料的气体传感器构件 使用载脂蛋白，使用其的气体传感器及其制造方法。 根据本发明构思的实施方案，将含有异质纳米颗粒催化剂的载脂蛋白铁蛋白与静电纺丝溶液混合，将该混合溶液静电纺丝以形成复合纳米纤维，然后进行高温热处理工艺以除去载脂蛋白。 因此，异质纳米颗粒催化剂被均匀地紧固到一维金属氧化物纳米纤维的内部和表面，以形成气体传感器的构件。 结果，用于气体传感器的部件具有能够感测非常少量气体的高灵敏度特性和能够感测各种气体的优异的选择性。 此外，通过均匀分布而不聚集的杂纳米颗粒催化剂使催化剂效果最大化。 此外，气体传感器用构件和使用该气体传感器的气体传感器可以通过能够有效地形成孔隙和紧固高性能催化剂的方法来批量生产。

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