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US 11,686,698 B2Granted
Reducing gas detection material and reducing gas detection sensor
AssigneeCanon Kabushiki Kaisha
InventorsAkira Tsuboyama, Koji Yano
Life of this patent
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Abstract
Provided is a reducing gas detection sensor which has sensitivity improved as compared to that of the related art, and in which power consumption is decreased. The reducing gas detection sensor includes: a reducing gas detection material including a palladium compound and a carbon compound, and having reactivity with a reducing gas; and a unit configured to measure a conductivity of the reducing gas detection material.
Claims19
A reducing gas detection material comprising:
- a palladium oxide;
- a metallic palladium;
- and
- a carbon compound,
- the reducing gas detection material having reactivity with a reducing gas,
- wherein when a number of palladium atoms contained in the palladium oxide is represented by PO and a number of palladium atoms contained in the metallic palladium is represented by PM, a ratio RP of the number of palladium atoms contained in the metallic palladium with respect to a total of the number of palladium atoms contained in the palladium oxide and in the metallic palladium, as represented by expression RP=PM/(PM+PO), is 0.17 to 0.45.
3 more elements
Dependencies are inferred from the claim text.