Stabilization of sensing performance for mixed-potential-type zirconia-based hydrocarbon sensor.

The recently reported sensing characteristics of the mixed-potential-type yttria-stabilized zirconia (YSZ)-based hydrocarbon (HC) sensor attached with ZnCr(2)O(4)-sensing electrode (SE) were found to be changed after the 10-day operation at 550°C under the wet condition (5 vol.% water vapor). To improve the stability of the present sensor, the several modifications of the SE material by adding YSZ powder were examined. As a result, the sensor using the laminated (ZnCr(2)O(4)/YSZ)-SE gave the stable electromotive force (emf) response against 100 ppm C(3)H(6) at 550°C for about one month examined. Based on the scanning electron microscopy (SEM) observation and the AC complex-impedance measurements, it was concluded that the stable behavior of the sensor using the laminated (ZnCr(2)O(4)/YSZ)-SE was provided by the stabilization of the interface between ZnCr(2)O(4) grains and YSZ particles. The fabricated sensor exhibited the linear dependence of sensitivity on the logarithm of either C(3)H(6) concentration (in the range of 20-800 ppm) or mixtures of various hydrocarbons (HCs) (in the range of 90-2600 ppmC). In addition, the emf response was not altered by the change of O(2) (2-20 vol.%), H(2)O (0-10.8 vol.%) and CO(2) (0-20 vol.%) concentrations, and no interference of other gases (CO, NO, NO(2), H(2), and CH(4)) was observed.

[1]  Norio Miura,et al.  Solid-state electrochemical gas sensors , 2009 .

[2]  S. Cordiner,et al.  Non-Nernstian Electrochemical Sensors with a Nb2O5 Sensing Electrode for Engine Exhaust Monitoring , 2009 .

[3]  Jens Zosel,et al.  Response behavior of perovskites and Au/oxide composites as HC-electrodes in different combustibles , 2004 .

[4]  Masahiro Utiyama,et al.  Impedancemetric zirconia-based sensor attached with laminated-oxide sensing-electrode aiming at highly sensitive and selective detection of propene in atmospheric air , 2010 .

[5]  N. Miura,et al.  Highly sensitive and selective stabilized zirconia-based mixed-potential-type propene sensor using NiO/Au composite sensing-electrode , 2010 .

[6]  Ralf Moos,et al.  Potentiometric hydrocarbon gas sensing characteristics of sodium ion conducting zeolite ZSM-5 , 2008 .

[7]  Norio Miura,et al.  Zirconia-based amperometric sensor using ZnO sensing-electrode for selective detection of propene , 2007 .

[8]  G. Kale,et al.  Novel High-Selectivity NO2 Sensor for Sensing Low-Level NO2 , 2005 .

[9]  Y. Sadaoka,et al.  Potentiometric VOC detection at sub-ppm levels based on YSZ electrolyte and platinum electrode covered with gold , 2010 .

[10]  N. Yamazoe,et al.  Control of Electrode Reactions in a Mixed-Potential-Type Gas Sensor Based on a BiCuVOx Solid Electrolyte , 2010 .

[11]  Masahiro Utiyama,et al.  Highly sensitive impedance-based propene sensor using stabilized zirconia and zinc oxide sensing-electrode , 2007 .

[12]  Norio Miura,et al.  Detection of propene by using new-type impedancemetric zirconia-based sensor attached with oxide sensing-electrode , 2006 .

[13]  Jens Zosel,et al.  Selectivity of HC-sensitive electrode materials for mixed potential gas sensors , 2004 .

[14]  E. Traversa,et al.  Propene Detection at High Temperatures Using Highly Sensitive Non-Nernstian Electrochemical Sensors Based on Nb and Ta Oxides , 2010 .

[15]  S. Akbar,et al.  A phosphate-based proton conducting solid electrolyte hydrocarbon gas sensor , 2002 .

[16]  Weizhen Xiong,et al.  Electrochemical NO2 sensor using a NiFe1.9Al0.1O4 oxide spinel electrode. , 2007, Analytical chemistry.

[17]  Norio Miura,et al.  Stabilized zirconia-based sensor using oxide electrode for detection of NOx in high-temperature combustion-exhausts , 1996 .

[18]  N. Miura,et al.  Mixed-potential-type Zirconia-based Sensor Using In2O3 Sensing-Electrode for Selective Detection of Methane at High Temperature , 2008 .

[19]  Jeffrey W. Fergus,et al.  Solid electrolyte based sensors for the measurement of CO and hydrocarbon gases , 2007 .

[20]  Norio Miura,et al.  Mixed-potential-type propylene sensor based on stabilized zirconia and oxide electrode , 2000 .

[21]  M. Sano,et al.  Zirconia-Based Potentiometric Sensors Using Metal Oxide Electrodes for Detection of Hydrocarbons , 2001 .

[22]  Dennis N. Assanis,et al.  Method and Detailed Analysis of Individual Hydrocarbon Species From Diesel Combustion Modes and Diesel Oxidation Catalyst , 2007 .

[23]  R. M. Lambert,et al.  Amperometric/potentiometric hydrocarbon sensors: real world solutions for use in ultra high vacuum , 2008 .

[24]  R. Mukundan,et al.  YSZ-Based Mixed Potential Sensors for the Detection of Explosives , 2008 .

[25]  N. Miura,et al.  Sensing characteristics of mixed-potential-type zirconia-based sensor attached with NiO-based sensing electrode prepared by ball-milling , 2010 .

[26]  Norio Miura,et al.  Mixed potential type sensor using stabilized zirconia and ZnFe2O4 sensing electrode for NOx detection at high temperature , 2002 .

[27]  T. Ishihara,et al.  Amperometric hydrocarbon sensor using La(Sr)Ga(Fe)O3 solid electrolyte for monitoring in exhaust gas , 2005 .

[28]  N. Miura,et al.  Highly Sensitive and Selective Zirconia-Based Propene Sensor using Nanostructured Gold Sensing Electrodes Fabricated from Colloidal Solutions , 2009 .

[29]  Tatsumi Ishihara,et al.  Solid-state amperometric CH4 sensor using, LaGaO3-based electrolyte , 2008 .

[30]  N. Miura,et al.  Improvement in Propene Sensing Characteristics by the Use of Additives to In2O3 Sensing Electrode of Mixed-Potential-Type Zirconia Sensor , 2009 .

[31]  N. Miura,et al.  Zirconia-Based Sensor Using ZnCr2O4 Sensing Electrode for Measurement of Total Concentration of Various Hydrocarbons , 2008 .

[32]  M. Sano,et al.  High-temperature hydrocarbon sensors based on a stabilized zirconia electrolyte and proton conductor-containing platinum electrode , 2001 .