Title:
GAS SENSOR, SENSOR ELEMENT, AND DETECTION ELECTRODE OF GAS SENSOR
Document Type and Number:
WIPO Patent Application WO/2022/208977
Kind Code:
A1
Abstract:
Provided is a gas sensor that is capable of specifying the ammonia concentration of a gas under measurement and comprises a less expensive detection electrode than the prior art. This mixed-potential-type gas sensor specifies the concentration of ammonia in a gas under measurement on the basis of a potential difference that is produced between a detection electrode and reference electrode and corresponds to the concentration of ammonia in the gas under measurement. The detection electrode is provided so as to be capable of coming into contact with the gas under measurement at a conductive oxide having lower ammonia combustion performance than Pt.
Inventors:
MIYANISHI KEITA (JP)
HOSODA KAZUYA (JP)
TOMITA TAKAHIRO (JP)
MORIMOTO KENJI (JP)
KAWASAKI SHINJI (JP)
HOSODA KAZUYA (JP)
TOMITA TAKAHIRO (JP)
MORIMOTO KENJI (JP)
KAWASAKI SHINJI (JP)
Application Number:
PCT/JP2021/041672
Publication Date:
October 06, 2022
Filing Date:
November 12, 2021
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
International Classes:
G01N27/416
Foreign References:
| JP2020020737A | 2020-02-06 | |||
| JP2017527814A | 2017-09-21 |
Other References:
DIAO QUAN, YANG FASHENG, YIN CHENGGUO, LI JIANGUO, YANG SHIQI, LIANG XISHUANG, LU GEYU: "Ammonia sensors based on stabilized zirconia and CoWO4 sensing electrode", SOLID STATE IONICS, NORTH HOLLAND PUB. COMPANY. AMSTERDAM; NL, NL, vol. 225, 1 October 2012 (2012-10-01), NL , pages 328 - 331, XP055971897, ISSN: 0167-2738, DOI: 10.1016/j.ssi.2012.02.021
Attorney, Agent or Firm:
YOSHITAKE Hidetoshi et al. (JP)
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