SENSOR ELEMENT AND GAS SENSOR

WIPO Patent Application WO/2019/130630

A1

Provided are: a sensor element which suppresses decrease in the responsiveness of a gas sensor, while improving the detection accuracy of a gas to be detected by means of a catalyst; and a gas sensor. A sensor element 3 which is provided with: an oxygen ion conductive solid electrolyte body 3s; a detection electrode 55 which is provided on one surface of the solid electrolyte body and comes into contact with a gas to be measured; and a reference electrode 51 which is provided on the other surface of the solid electrolyte body and comes into contact with a reference gas. This sensor element 3 is additionally provided with a catalyst layer 60 which comprises: a porous carrier 63 which covers the detection electrode; and one or more catalysts 65 which are supported by the carrier and are selected from the group consisting of Ru, Rh, Pd, Ir and Pt. The carrier is mainly composed of a combined body of ceramic particles 61 and Ti oxide particles 62 that are different from the ceramic particles and have a smaller particle diameter than the ceramic particles.

JPS5599063	MEASURING APPARATUS FOR OXYGEN CONCENTRATION
JPH0799365	[Title of Invention] Oxygen Concentration Detection Device
JP4220797	Gas sensor

ITOU KAZUMA (JP)

PCT/JP2018/026858

July 04, 2019

July 18, 2018

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NGK SPARK PLUG CO (JP)

G01N27/409

JP2015072259A	2015-04-16
JPH01203963A	1989-08-16
JPS5365783U	1978-06-02
JP2014098590A	2014-05-29
JPH10221296A	1998-08-21
JP2002195977A	2002-07-10
JP2012173147A	2012-09-10
JPH07333191A	1995-12-22
JPS61241657A	1986-10-27
JP2017198659A	2017-11-02
JP2005227300A	2005-08-25
JP2006038496A	2006-02-09

NAKAJIMA Hiroki (JP)

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