1 Gas sensor and member using metal oxide semiconductor nanotubes including nanoparticle catalyst functionalized by nano-catalyst included within apoferritin and manufacturing method thereof

摘要

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 specifically, the present invention relates to a nanoparticle catalyst embedded in apoferritin, To a gas sensor member, a gas sensor, and a manufacturing method thereof using a metal oxide nanotube composite material to which a catalyst is bound.The present invention relates to a nanoparticle having a size of 0.1-5 nm by using a protein called apoferritin having a charge on the surface and having good dispersibility as a template, and the formed nanoparticle catalyst is mixed with a metal oxide precursor / Thereby uniformly distributing the catalyst to the composite nanofibers and controlling the temperature raising rate in the heat treatment process to form a metal oxide nanotube structure in which the nanoparticle catalyst is uniformly distributed by using the Ostwald lifting phenomenon do. It is possible to detect various gases through various material composition changes, with high sensitivity characteristic that can detect extremely small amount of gas of about 100 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, a gas sensor, and a method for manufacturing the same, which are capable of mass production by simultaneously performing catalytic binding and nanotube shape control processes by a simple process by controlling electrospinning and heat treatment processes Effect.;