Oxygen sensing junctions based on yttria stabilized zirconia with platinum nanoparticles

被引：5
作者：
Dimitrov, Dimitre Tz. [1 ]
Anastasova, Salzitsa Y. [1 ]
Dushkin, Ceco D. [1 ]
机构：
[1] Univ Sofia, Fac Chem, Dept Gen & Inorgan Chem, Sofia 1164, Bulgaria
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2006年 / 77卷 / 05期
关键词：
D O I：
10.1063/1.2202925
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We invent new types of ceramic sensor junctions for detection of oxygen. Their electrodes comprise thin films of yttria stabilized zirconia (YSZ) obtained by spray pyrolysis: pure YSZ and YSZ reinforced with platinum nanoparticles. The potential difference of the sensors is measured as a function of temperature and described by empirical equation. In dynamic conditions this difference exhibits a well pronounced cyclic behavior sensitive to the oxygen content. The potential difference logarithmically depends on the oxygen concentration at a fixed temperature, which is proven both experimentally and theoretically. This difference has a minimum at particular concentration of platinum in the ceramics. (c) 2006 American Institute of Physics.
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