Method for making a sensor for monitoring hydrogen concentrations in gases
First Claim
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1. A method for making a sensor for monitoring hydrogen concentrations in gases, comprising the steps of:
- printing a thick film solid electrolyte body comprising at least one of nasicon, titsicon, khibinskite, wadeite and β
-Al2 O3 onto a substrate;
printing a thick film detector electrode comprising one of a metal or metal oxide selected from the group consisting of platinum, platinum oxide, palladium, and palladium oxide and having a surface to be exposed to a gas to be monitored onto said solid electrolyte body;
printing a thick film reference electrode comprising sodium tungsten bronze onto said solid electrolyte body; and
covering said reference electrode with an insulating material.
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Abstract
A sensor for monitoring hydrogen concentrations in gases, containing a solid electrolyte body, a detector electrode having a surface which is exposable to a gas to be monitored, and a reference electrode, in which the reference and detector electrodes make contact with the solid electrolyte, and the detector electrode contains a platinum metal or a platinum metal oxide. A method of making the sensor is also disclosed.
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11 Claims
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1. A method for making a sensor for monitoring hydrogen concentrations in gases, comprising the steps of:
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printing a thick film solid electrolyte body comprising at least one of nasicon, titsicon, khibinskite, wadeite and β
-Al2 O3 onto a substrate;printing a thick film detector electrode comprising one of a metal or metal oxide selected from the group consisting of platinum, platinum oxide, palladium, and palladium oxide and having a surface to be exposed to a gas to be monitored onto said solid electrolyte body; printing a thick film reference electrode comprising sodium tungsten bronze onto said solid electrolyte body; and covering said reference electrode with an insulating material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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