| abstract |
The present invention relates to a member for a gas sensor, a gas sensor using the same, and a method of manufacturing the same. More particularly, the present invention relates to a gas sensor using a microporous 0.1 nm-50 nm) and macropores (50 nm-300 nm) are formed at the same time, and the nanoparticle catalyst embedded in the apoferritin is homogeneously bound to the inside of the one-dimensional metal oxide nanotube, To a member for a gas sensor using a one-dimensional porous metal oxide nanotube composite material having a dual average pore distribution, a gas sensor, and a manufacturing method thereof. The present invention relates to a nanoparticle catalyst having a size of 1 nm-3 nm by using a protein template having a positive charge on its surface and dispersibility due to the repulsive force between the nanoparticles, And the spherical template colloid is also mixed with the electrospinning solution and electrospun, thereby uniformly distributing spherical template and catalyst in the composite nanofiber. In addition, by using a rapid heating rate in a high-temperature heat treatment process, a one-dimensional porous metal oxide structure having uniformly bound nanoparticle catalyst and having a double pore distribution on the surface of metal oxide is formed using Ostwald lifting phenomenon and polymer decomposition phenomenon . It is able to detect various gases through various material composition change, with high sensitivity characteristic that can detect a trace amount of gas of about 10 ppb through shape control which is an important factor in gas sensor characteristics and catalytic effect and broadening reaction surface area. A gas sensor member capable of mass production by simultaneously performing a catalyst binding and a nanotube shape control process including a plurality of pores in a simple process by controlling electrospinning and heat treatment processes, Can be started. |