The influence of Au and Pt electrodes on the stability of TiO2 under UV light activation for sensing formaldehyde in moisture circumstances
作者： Tao Lei , Shunping Zhang , Dong Li , Wan Zhang , Shun huang
DOI: 10.1016/J.SNB.2014.03.094
关键词:
摘要: Abstract The structural stability of TiO2 thick films on Au and Pt electrodes was investigated under UV light activation for sensing formaldehyde in moisture circumstances. A chameleon phenomenon the anode found electrode samples, while no color changed samples. discolored (puce) powders were characterized by X-ray photoelectron spectroscopy, where generation Ti3+ verified. Different mechanisms that caused disparities between ones discussed detail. With purpose further evaluating gas performance stability, four test circles performed. samples emerged an irreversible drift, perfectly recovered to initial state undergoing a transitory 300 °C thermal cycle. results this paper show is suitable choice
sci-hub.se 参考文章(33)
Bai Zhaoqiang, Chintalapati Sandhya, Feng Yuan Ping, Cai Yongqing, Zeng Qingfeng, Transition Metal Atoms Pathways on Rutile TiO2 (110) Surface: Distribution of Ti3+ States and Evidence of Enhanced Peripheral Charge Accumulation arXiv: Materials Science. ,(2012) , 10.1063/1.4801025
G. Korotcenkov, B.K. Cho, The role of grain size on the thermal instability of nanostructured metal oxides used in gas sensor applications and approaches for grain-size stabilization Progress in Crystal Growth and Characterization of Materials. ,vol. 58, pp. 167- 208 ,(2012) , 10.1016/J.PCRYSGROW.2012.07.001
Juan Su, Xiao-Xin Zou, Yong-Cun Zou, Guo-Dong Li, Pei-Pei Wang, Jie-Sheng Chen, Porous Titania with Heavily Self-Doped Ti3+ for Specific Sensing of CO at Room Temperature Inorganic Chemistry. ,vol. 52, pp. 5924- 5930 ,(2013) , 10.1021/IC400109J
Chang Sup Moon, Hae-Ryong Kim, Graeme Auchterlonie, John Drennan, Jong-Heun Lee, Highly sensitive and fast responding CO sensor using SnO2 nanosheets Sensors and Actuators B-chemical. ,vol. 131, pp. 556- 564 ,(2008) , 10.1016/J.SNB.2007.12.040
S Fischer, F Schneider, K-D Schierbaum, Intrinsic defects and Pt atoms at TiO2(110) surfaces: a valence band spectroscopy study using synchrotron radiation Vacuum. ,vol. 47, pp. 1149- 1152 ,(1996) , 10.1016/0042-207X(96)00164-9
T Watanabe, A Nakajima, R Wang, M Minabe, S Koizumi, A Fujishima, K Hashimoto, Photocatalytic activity and photoinduced hydrophilicity of titanium dioxide coated glass Thin Solid Films. ,vol. 351, pp. 260- 263 ,(1999) , 10.1016/S0040-6090(99)00205-9
Hao Chen, Yuan Liu, Changsheng Xie, Jun Wu, Dawen Zeng, Yichuan Liao, A comparative study on UV light activated porous TiO2 and ZnO film sensors for gas sensing at room temperature Ceramics International. ,vol. 38, pp. 503- 509 ,(2012) , 10.1016/J.CERAMINT.2011.07.035
D Uner, NA Tapan, I Özen, M Üner, Oxygen adsorption on Pt/TiO2 catalysts Applied Catalysis A-general. ,vol. 251, pp. 225- 234 ,(2003) , 10.1016/S0926-860X(03)00317-X
Xiaosong Zhou, Fei Yang, Bei Jin, Yingshang Huang, Zhijun Wu, Hydrothermal fabrication of Ti3+ self-doped TiO2 nanorods with high visible light photocatalytic activity Materials Letters. ,vol. 112, pp. 145- 148 ,(2013) , 10.1016/J.MATLET.2013.09.006
B.P.J. de Lacy Costello, R.J. Ewen, N.M. Ratcliffe, M. Richards, Highly sensitive room temperature sensors based on the UV-LED activation of zinc oxide nanoparticles Sensors and Actuators B: Chemical. ,vol. 134, pp. 945- 952 ,(2008) , 10.1016/J.SNB.2008.06.055