Enhanced ethanol sensing properties of ZnO-doped porous SnO2 hollow nanospheres
作者： Xicheng Ma , Haiyan Song , Congsheng Guan
DOI: 10.1016/J.SNB.2013.06.099
关键词:
摘要: Abstract Doping is an important and effective way to improve the gas-sensing properties of metal oxide semiconductors. ZnO-doped porous SnO2 hollow nanospheres were successfully synthesized by a controllable scalable route in order their sensor performance, then characterized X-ray diffraction (XRD), high-resolution electron microscopy (HRTEM), photoelectron spectroscopy (XPS) energy-dispersive (EDS). The comparative pure also investigated. exhibited significantly enhanced ethanol sensing properties, including lower operating temperature, stronger sensitivity, faster response–recovery, better selectivity. response (Ra/Rg) prepared 100 ppm at 150 °C about 14.7, with recovery times being 10 s 23 s, respectively. possible mechanism was discussed.
sci-hub.se 参考文章(52)
Nicolae Barsan, Udo Weimar, Conduction Model of Metal Oxide Gas Sensors Journal of Electroceramics. ,vol. 7, pp. 143- 167 ,(2001) , 10.1023/A:1014405811371
Yujin Chen, C L Zhu, G Xiao, Reduced-temperature ethanol sensing characteristics of flower-like ZnO nanorods synthesized by a sonochemical method Nanotechnology. ,vol. 17, pp. 4537- 4541 ,(2006) , 10.1088/0957-4484/17/18/002
Guisheng Li, Michael K. H. Leung, Template-free synthesis of hierarchical porous SnO2 Journal of Sol-Gel Science and Technology. ,vol. 53, pp. 499- 503 ,(2010) , 10.1007/S10971-009-2122-Z
Kiran Jain, R.P. Pant, S.T. Lakshmikumar, Effect of Ni doping on thick film SnO2 gas sensor Sensors and Actuators B-chemical. ,vol. 113, pp. 823- 829 ,(2006) , 10.1016/J.SNB.2005.03.104
Minggang Zhao, Xinchang Wang, Jipeng Cheng, Liwei Zhang, Jianfeng Jia, Xinjian Li, Synthesis and ethanol sensing properties of Al-doped ZnO nanofibers Current Applied Physics. ,vol. 13, pp. 403- 407 ,(2013) , 10.1016/J.CAP.2012.08.019
Zhihong Jing, Jinhua Zhan, Fabrication and Gas‐Sensing Properties of Porous ZnO Nanoplates Advanced Materials. ,vol. 20, pp. 4547- 4551 ,(2008) , 10.1002/ADMA.200800243
Q. Wan, Q. H. Li, Y. J. Chen, T. H. Wang, X. L. He, J. P. Li, C. L. Lin, Fabrication and ethanol sensing characteristics of ZnO nanowire gas sensors Applied Physics Letters. ,vol. 84, pp. 3654- 3656 ,(2004) , 10.1063/1.1738932
Chen Huan, Liu Zhiyu, Fu Gang, Analysis of the aging characteristics of SnO2 gas sensors Sensors and Actuators B-chemical. ,vol. 156, pp. 912- 917 ,(2011) , 10.1016/J.SNB.2011.03.005
Hui Huang, Hua Gong, Chee Lap Chow, Jun Guo, Timothy John White, Man Siu Tse, Ooi Kiang Tan, Low-Temperature Growth of SnO2 Nanorod Arrays and Tunable n–p–n Sensing Response of a ZnO/SnO2 Heterojunction for Exclusive Hydrogen Sensors Advanced Functional Materials. ,vol. 21, pp. 2680- 2686 ,(2011) , 10.1002/ADFM.201002115
Prabhakar Rai, Sudarsan Raj, Kyoung-Jun Ko, Kyung-Keun Park, Yeon-Tae Yu, Synthesis of flower-like ZnO microstructures for gas sensor applications Sensors and Actuators B-chemical. ,vol. 178, pp. 107- 112 ,(2013) , 10.1016/J.SNB.2012.12.031