Synthesis and Gas Sensing of TiO_2 Ultrafine Powders by Precipitating

• 作 者: Min-Hyun Seo Bong-Ho Lee Jong-Won Kim Gi-Hong Rue Duk-Dong Lee Jeung-Soo Huh
• 机 构: Department of Sensor and Display Engineering Kyungpook National University,Sangyuk-Dong,Bukgu,Daegu
• 出 处: 稀有金属材料与工程
• 发表日期: 2006年S3期
• 关键词: rutile anatase powders tetragonal DMMP candidate adding sizes have 稀有金属材料

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.

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 structures were fabricated by controlling pH value without heat treatment. 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.