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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
    1.
    发明授权
    Gas sensor and member using metal oxide semiconductor nanofibers including nanoparticle catalyst functionalized by bifunctional nano-catalyst included within apoferritin, and manufacturing method thereof 有权

    公开(公告)号：US10274467B2

    公开(公告)日：2019-04-30

    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 ,  D01D5/00 ,  D01F9/10 ,  B82Y30/00 ,  C04B35/622

    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.

    Member for Gas Sensor, Having a Metal Oxide Semiconductor Tube Wall with Micropores and Macropores, Gas Sensor, and Method for Manufacturing Same
    4.
    发明申请
    Member for Gas Sensor, Having a Metal Oxide Semiconductor Tube Wall with Micropores and Macropores, Gas Sensor, and Method for Manufacturing Same 审中-公开
    气体传感器成员，具有微孔和大孔的金属氧化物半导体管壁，气体传感器及其制造方法

    公开(公告)号：US20160334359A1

    公开(公告)日：2016-11-17

    申请号：US15111173

    申请日：2015-12-15

    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Il-Doo Kim ,  Ji Su Jang ,  Sang-Joon Kim ,  Seon-Jin Choi

    IPC: G01N27/407 ,  G01N27/30

    CPC classification number: G01N27/127 ,  B82Y15/00 ,  C01B32/168 ,  C01G9/02 ,  C01G19/02 ,  C01G23/003 ,  C01G45/02 ,  C01G49/02

    Abstract: Disclosed are a gas sensor member, a gas sensor using the same, and manufacturing methods thereof, and specifically, a gas sensor member using a one-dimensional porous metal oxide nanotube composite material having a double average pore distribution in which mesopores (0.1 nm to 50 nm) and macropores (50 nm to 300 nm) are simultaneously formed on the surface of a nanotube through decomposition of a spherical polymer sacrificial template and continuous crystallization and diffusion of a metal oxide and a nanoparticle catalyst embedded in an apoferritin is uniformly loaded in the inside and on the outer wall and inner wall of a one-dimensional metal oxide nanotube through a high-temperature heat treatment, a gas sensor using the same, and manufacturing methods thereof are disclosed.

    Abstract translation: 公开了一种气体传感器构件，使用该气体传感器构件的气体传感器及其制造方法，具体地，使用具有双平均孔分布的一维多孔金属氧化物纳米管复合材料的气体传感器构件，其中介孔（0.1nm至 50nm）和大孔（50nm至300nm）通过球形聚合物牺牲模板的分解在纳米管的表面上同时形成，并且将金属氧化物和嵌入脱铁铁蛋白中的纳米颗粒催化剂的连续结晶和扩散均匀地加载在 公开了通过高温热处理的一维金属氧化物纳米管的内壁和外壁和内壁，使用其的气体传感器及其制造方法。

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