Synthesis and Gas Sensing of TiO_2 Ultrafine Powders by Precipitating

摘要

We investigated the gas sensing characteristics of rutile and anatase TiO_2 nano-particle sensors for chemical warfare agents. TiO_2 nano-powders with rutile and anatase structure were fabricated by controlling pH value without heat treatment respectively. The mean particle size of TiO_2 powders were below 10 nm. As-prepared TiO_2 powders have several advantages of nano particle size and high surface area and could be a prominent candidate for nano-sensors. TiO_2 sensors were examined with DMMP for chemical warfare agents detection.