公开(公告)号：US20190227016A1

公开(公告)日：2019-07-25

申请号：US16352620

申请日：2019-03-13

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Il-Doo KIM ,  Ji Su JANG ,  Sang-Joon KIM ,  Seon-Jin CHOI

IPC: G01N27/12 ,  C01G45/02 ,  C01G23/00 ,  C01G9/02 ,  C01B32/168 ,  C01G19/02 ,  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.