？ Kenichi S, Kohichi K, Hiroyuki N. Impedancemetric gas sensor based on Pt and WO3 co-loaded TiO2 and ZrO2 as total NOx sensing materials [J]. Sens Actuators B: Chem, 2008, 130(2): 707–712.
[2]
Chen Junchen, Xu Jiaqiang. SnO2-based R134a gas sensor: Sensing materials preparation, gas response and sensing mechanism [J]. Sens Actuators B: Chem, 2011, 157(2): 494–499.
[3]
？ Lin Shiwei, Li Dongrong, Wu Jian. A selective room temperature formaldehyde gas sensor using TiO2 nanotube arrays [J]. Sens Actuators B: Chem, 2011, 156: 505–509.
？ Shimizu Y, Kuwano N, Hyodo T, High H2 sensing performance of anodically oxidized TiO2 ?lm contacted with Pd [J]. Sens Actuators B Chem, 2002, 83: 195–201.
[7]
DIana B, Bettina H, Gerhard S, et al. Nanosized titania derived from a novel sol–gel process for ammonia gas sensor applications [J]. Sens Actuators B: Chem, 2011, 153: 329–334.
[8]
Moona J Y, Parka J A, Lee S J. Pd-doped TiO2 nano?ber networks for gas sensor applications [J]. Sens Actuators B: Chem, 2010, 149: 301–305.
[9]
？ Kim S H, Zyung T Y, Chu H Y. Structural, electrical and gas sensing properties of eletrospun TiO2 nano?bers [J]. Thin Solid Films, 2010, 518: 6642–664.
[10]
？ Yun J M, Jin D H, Lee Y S. Photocatalytic treatment of acidic waste water by electrospun composite nano?bers of pH-sensitive hydrogel and TiO2 [J]. Mater Lett, 2010, 64: 2431–2434.
[11]
？ Wanbayor R, Ruangpornvisuti V. Adsorption of di-, tri- and polyatomic gases on the anatase TiO2 (001) and (101) surfaces and their adsorption abilities [J]. J Mol Struct: Theochem, 2010, 952: 103–108.
[12]
Xu Xiuru, Sun Jinghui, Zhang Honggan, et al. Effect of Al doping on SnO2 nano?bers inhydrogen sensor [J]. Sens Actuators B: Chem, 2011, 160: 858–863.
