Influences of heat-treatment and measurement atmosphere on the electrochemical property of Pt–SnOx device
作者： Hiroki Muroyama , Nobutada Yamaguchi , Naoto Kamiuchi , Toshiaki Matsui , Koichi Eguchi
DOI: 10.1016/J.CATTOD.2015.06.002
关键词:
摘要: Abstract The Pt–SnO2 system has attracted much attention as catalysts and gas sensors. Reduction–oxidation treatment been reported to significantly affect the microstructure activity of SnO2-supported platinum (Pt/SnO2) catalyst. In this study, electrochemical property Pt–SnOx device was investigated. This repeatedly exhibited ohmic rectifying characteristics in response reduction oxidation treatments, respectively. behavior also confirmed under reducing conditions, while effect appeared a gaseous mixture 5% CO–15% O2–80% N2. These phenomena could be explained by adsorption species diffusion atoms ions constituent materials.
sci-hub.se 参考文章(18)
N. Yamamoto, S. Tonomura, T. Matsuoka, H. Tsubomura, A study on a palladium-titanium oxide Schottky diode as a detector for gaseous components Surface Science. ,vol. 92, pp. 400- 406 ,(1980) , 10.1016/0039-6028(80)90212-5
W.P. Kang, C.K. Kim, Performance and detection mechanism of a new class of catalyst (Pd, Pt, or Ag)-adsorptive oxide (SnOx or ZnO)-insulator-semiconductor gas sensors Sensors and Actuators B: Chemical. ,vol. 22, pp. 47- 55 ,(1994) , 10.1016/0925-4005(94)01265-2
D. E. Eastman, PHOTOELECTRIC WORK FUNCTIONS OF TRANSITION, RARE-EARTH, AND NOBLE METALS. Physical Review B. ,vol. 2, pp. 1- 2 ,(1970) , 10.1103/PHYSREVB.2.1
K.D. Schierbaum, U.K. Kirner, J.F. Geiger, W. Göpel, Schottky-barrier and conductivity gas sensors based upon Pd/SnO2 and Pt/TiO2 Sensors and Actuators B-chemical. ,vol. 4, pp. 87- 94 ,(1991) , 10.1016/0925-4005(91)80181-I
Bong-Hoon Jang, Osnat Landau, Seon-Jin Choi, Jungwoo Shin, Avner Rothschild, Il-Doo Kim, Selectivity enhancement of SnO2 nanofiber gas sensors by functionalization with Pt nanocatalysts and manipulation of the operation temperature Sensors and Actuators B-chemical. ,vol. 188, pp. 156- 168 ,(2013) , 10.1016/J.SNB.2013.07.011
Naoto Kamiuchi, Tomohiro Mitsui, Nobutada Yamaguchi, Hiroki Muroyama, Toshiaki Matsui, Ryuji Kikuchi, Koichi Eguchi, Activation of Pt/SnO2 catalyst for catalytic oxidation of volatile organic compounds Catalysis Today. ,vol. 157, pp. 415- 419 ,(2010) , 10.1016/J.CATTOD.2010.02.063
M. A. Butler, D. S. Ginley, Prediction of Flatband Potentials at Semiconductor‐Electrolyte Interfaces from Atomic Electronegativities Journal of The Electrochemical Society. ,vol. 125, pp. 228- 232 ,(1978) , 10.1149/1.2131419
Naoto Kamiuchi, Toshiaki Matsui, Ryuji Kikuchi, Koichi Eguchi, Nanoscopic observation of strong chemical interaction between Pt and tin oxide Journal of Physical Chemistry C. ,vol. 111, pp. 16470- 16476 ,(2007) , 10.1021/JP0745337
Chi Lu, Zhi Chen, Vijay Singh, Highly hydrogen-sensitive SnO2 nanoscale-particle films with platinum electrodes Sensors and Actuators B-chemical. ,vol. 146, pp. 145- 153 ,(2010) , 10.1016/J.SNB.2010.02.034
Toshiaki Matsui, Katsuhiko Fujiwara, Takeoh Okanishi, Ryuji Kikuchi, Tatsuya Takeguchi, Koichi Eguchi, Electrochemical oxidation of CO over tin oxide supported platinum catalysts Journal of Power Sources. ,vol. 155, pp. 152- 156 ,(2006) , 10.1016/J.JPOWSOUR.2005.05.003