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New Type of NOx Sensors for Automobiles
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Abstract
New types of potentiometric NOx sensors suitable for use on automobiles were developed by using stabilized zirconia as a base solid electrolyte. It was found that the sensor with sensing electrodes of metal oxides (CdMn2O4 or NiCr2O4) showed excellent response to NOx in the concentrations between 20 and 4000 ppm at temperatures higher than 600 °C. The electromotive force of the sensors was almost linear to the logarithm of the NOx concentrations with positive slope for NO2 and negative slope for NO. Especially, the sensor fitted with CdMn2Os gave excellent responses to NO at 600 °C, while the sensor fitted with NiCr2O4 showed high sensitive to NO2 at 650 °C. The sensors were insensitive to CO, CO2, CH4, C3H6, O2 and water vapor. The sensors were fabricated as planar types with the reference electrode exposed to the sample gas, so that the sensors were simple in structure and easy to manufacture.
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Nakanouchi, Y., Kurosawa, H., Hasei, M., Yan, Y. et al., "New Type of NOx Sensors for Automobiles," SAE Technical Paper 961130, 1996, https://doi.org/10.4271/961130.Also In
References
- Shundoh S. Komori N. Tsujimura K. “NOx Reduction from Diesel Combustion Using Pilot Injection with Pressure Fuel Injection” SAE paper 920461
- Inoue T. Matsushita S. Nakanishi K. Okano H. “Toyota lean combustion system the third generation system” SAE paper 930873
- Uchida N. Daisho Y. Saito T. Sugano H. “Combined effects of EGR and Supercharging on Diesel Combustion and Emissions” ASE paper 930601
- Konno M. Chikahisa T. Murayama T. Iwamoto M. “Catalytic Reduction of NOx m Actual Diesel Engine Exhaust” SAE paper 920091
- Muramatsu G. Abe A. Furuyama M. Yoshida K. “Catalytic reduction of NOx in Diesel Exhaust” SAE paper 930135
- Koupal J. W. Sabourin M. A. Clemmens W. B. “Detection of Catalyst Failure On-Vehicle Using the Dual Oxygen Sensor Method” SAE paper 910561
- Hepburn J. S. Dobson D. A. Hubbard C. P. Guldberg S. O. Thanasiu E. Watkins W. L. Burns B. D. Gandi H. S. “A Review of the Dual EGO Sensor Method for OBD-II Catalyst Efficiency Monitoring” SAE paper 942057
- Hilliard J. C. Wheeler R. W. “Nitrogen Dioxide in Engine Exhaust” SAE paper 790691
- Sberveglieri G. Groppelli S. “Radio Frequency Magnetron Sputtering Growth and Characterization of Indium-Tin Oxide(ITO) Then films for NO 2 Gas Sensors” Sensors and Actuators 15 235 242 1988
- Ishihara T. Shiokawa K. Eguchi K. Arai H. “Selective Detection of Nitrogen Monoxide by the Mixed Oxide Of Cr2O3-Nb2O5” Chemistry Letters 997 1000 1988
- Akiyama M. Zhang Z. Tamaki J. Miura N. Yamazoe N. “Tungsten Oxide-based Semiconductor Sensor for Detection of Nitrogen Oxides in Combustion Exhaust” Sensors and Actuators B 13-14 619 920 1993
- Shimizu Y. Okamoto Y. Yao S. Miura N. Yamazoe N. “Solid Electrolyte NO2 Sensors Fitted with Sodium Nitrate and/or Barium Nitrate Electrodes” Denki Kagaku 59 465 472 1991
- Yao S. Shimizu Y. Miura N. Yamozoe N. “Using of Nitrate Auxiliary, Electrode for Solid Electrolyte Sensor to Detect Nitrogen Oxides” Chemistry Letters 587 590 1992
- Kurosawa H. Yan Y. Miura N. Yamazoe N. “Stabilized Zircinia-Based Potentiometric Sensor for Nitrogen Oxides” Chemistry Letters 1733 1736 1994
- Kurosawa H. Yan Y. Miura N. Yamazoe N. “Stabilized Zirconia-Based Nox Sensor Operative at High Temperature” Solid lonics 79 338 343 1995
- Miura N. Yamazoe N. Seiyama T. Chemical Sensor Technology 1 123 139 Kodansha Elsevier Japan 1988
- Yan Y. Miura N. Yamazoe N. “Potentiometric Sensor Using Stabilized Zirconia and Tungsten Oxide for Hydrogen Sulfide” Chemistry Letters 1753 1756 1994