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1 GAS SENSOR AND MEMBRANE USING METAL OXIDE SEMICONDUCTOR COMBINATION OF CELLULOSE AND APOFERRITIN BIO-TEMPLATES DERIVED NANOTUBE FUNCTIONALIZED BY NANOPARTICLE CATALYST AND MANUFACTURING MEHTOD THEREOF
1 GAS SENSOR AND MEMBRANE USING METAL OXIDE SEMICONDUCTOR COMBINATION OF CELLULOSE AND APOFERRITIN BIO-TEMPLATES DERIVED NANOTUBE FUNCTIONALIZED BY NANOPARTICLE CATALYST AND MANUFACTURING MEHTOD THEREOF
Disclosed are a one-dimensional metal oxide semiconductor nanotube-based gas sensor member and a method of manufacturing the same, in which a metal nanoparticle catalyst is uniformly bound using a composite bio template of cellulose and apoferritin. The metal oxide nanotubes form a core-shell composite nanofiber in which the cellulose template is agglomerated in the core during the electrospinning process and forms a hollow structure as the cellulose of the core is thermally decomposed during the high temperature heat treatment process. Provided is a member for a gas sensor, characterized in that the metal nanoparticle catalyst functionalized by the apoferritin template is uniformly bound on the outer wall. Along with the high sensitivity to detect trace amounts of gas, it has excellent selectivity to selectively react only with specific gases, and excellent catalytic effect can be expected due to the uniformly functionalized metal nanoparticle catalyst without aggregation. In addition, the process method using the complex bio-template has the effect to disclose a gas sensor member, a gas sensor and a manufacturing method that can be easily mass-produced in a process method that achieves efficient structure control and high-performance catalyst binding at the same time.
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