Apparatus for measuring concentration of ammonia gas
First Claim
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1. An apparatus for measuring the concentration of ammonia gas, the apparatus comprising:
- a solid electrolyte body having oxygen ion conductivity, a reference electrode formed on a first surface of the solid electrolyte body for contacting a reference gas, a detecting electrode formed on a second surface of the solid electrolyte body and containing at least one of a noble metal and/or a metal oxide therein, and a Pd catalyst layer formed on an outer surface of the detecting electrode and including a Pd-containing porous body.
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Abstract
An apparatus for measuring the concentration of ammonia gas, including a solid electrolyte body having oxygen ion conductivity, a reference electrode formed on a first inner surface of the solid electrolyte body and contacting a reference gas, a detecting electrode formed on a second outer surface of the solid electrolyte body and containing a noble metal and/or a metal oxide therein, a Pd catalyst layer formed on an outer surface of the detecting electrode and including a Pd-containing porous body, and a heater element for heating the solid electrolyte body.
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12 Claims
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1. An apparatus for measuring the concentration of ammonia gas, the apparatus comprising:
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a solid electrolyte body having oxygen ion conductivity, a reference electrode formed on a first surface of the solid electrolyte body for contacting a reference gas, a detecting electrode formed on a second surface of the solid electrolyte body and containing at least one of a noble metal and/or a metal oxide therein, and a Pd catalyst layer formed on an outer surface of the detecting electrode and including a Pd-containing porous body. - View Dependent Claims (3, 5, 7, 9, 11)
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2. An apparatus for measuring the concentration of ammonia gas, the apparatus comprising:
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a solid electrolyte body having oxygen ion conductivity, a reference electrode formed on a first surface of the solid electrolyte body for contacting a reference gas, a detecting electrode formed on a second surface of the solid electrolyte body and containing at least one of a noble metal and/or a metal oxide therein, and a Pd catalyst layer formed on an outer surface of the detecting electrode and including a porous body and Pd supported by said porous body. - View Dependent Claims (4, 6, 8, 10, 12)
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Specification