Carbon dioxide sensor
AssigneesMitsui Kinzoku Company, Limited, Kyushu University, National University Corporation
InventorsKohei Kato, Shingo Ide, Kengo Shimanoe, Ken Watanabe, Koichi Suematsu, Nan Ma
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Abstract
A carbon dioxide sensor includes: a solid electrolyte layer that is anion conductive; a reference electrode disposed on one surface of the solid electrolyte layer; and a detection electrode disposed on the other surface of the solid electrolyte layer. The detection electrode is made of a mixture containing: (a) one or more metals selected from the group consisting of Au, Ag, Pt, Pd, Rh, Ru, Os, and Ir; (b) a cation conductive carbonate; and (c) an oxide containing Li and at least one of Ce and Sm. The solid electrolyte layer is preferably oxide ion conductive, and the cation conductive carbonate is preferably lithium ion conductive.
Claims16
A carbon dioxide sensor comprising:
- a solid electrolyte layer that is anion conductive;
- a reference electrode disposed on one surface of the solid electrolyte layer;
- and
- a detection electrode disposed on an opposite surface of the solid electrolyte layer,
- wherein the detection electrode is made of a mixture containing:
- particles of one or more metals selected from the group consisting of Au, Ag, Pt, Pd, Rh, Ru, Os, and Ir;
- a cation conductive carbonate;
- and
- particles of an oxide comprising Li2CexSmyO3 where x and y represent positive numbers, and x+y=1,
- wherein the one or more metals are contained in an amount that ranges between 30 mass % or more and 60 mass % or less relative to a total mass of the one or more metals, the cation conductive carbonate, and the oxide, and
- wherein a contact structure of the particles of the one or more metals and the particles of the oxide is continuously formed in the mixture.
Dependencies are inferred from the claim text.