FABRICATION METHOD OF NANOPOROUS SNO2 NANOTUBES FOR FAST REACTION GAS SENSORS AND NANOPOROUS SNO2 NANOTUBES PRODUCED BY THE METHOD

摘要

The present invention relates to a method for manufacturing a nanoporous tin oxide nanotube and a gas sensor using the same, and more particularly, coating anodized aluminum template with a surfactant containing an amine group; Filling tin oxide nanoparticles having a carboxyl group and titanium oxide nanoparticles having a carboxyl group in an anodized aluminum mold frame coated with the surfactant; Performing a peptide binding reaction between the tin oxide and titanium oxide nanoparticles and the surfactant; Sintering after removing excess nanoparticles not used for the peptide bond; Coating an electrode material on the sintered anodized aluminum mold and then etching the Al ₂ O ₃ oxide layer with NaOH or KOH solution, and etching the aluminum layer with saturated mercury chloride solution; And selectively etching titanium oxide using sulfuric acid. The present invention relates to a method for preparing nanoporous tin oxide nanotubes including a rapid reaction gas sensor having maximized efficiency.