Ceramic h2s sensor

G - Physics – 01 – N

Patent

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Details

G01N 27/26 (2006.01) B05D 5/12 (2006.01)

Patent

CA 2632982

A sensor capable of monitoring hydrogen sulfide in a hydrogen-containing background. The sensor comprises novel sulfur sensitive materials that may be deposited as a thin film or thick film in a chemi-resistor format. The novel sulfur sensitive materials may comprise a single component oxide material or a composite of two or more oxide materials. The sensors respond reversibly to H2S in a reducing gas environment, with a corresponding change in their electrical resistance that can be used to quantify the amount Of H2S present in the reducing gas.

L'invention concerne un capteur capable de surveiller le sulfure d'hydrogène dans un environnement contenant de l' hydrogène. Ledit capteur comprend de nouveaux matériaux sensibles au sulfure qui peuvent être déposés sous forme de film mince ou de film épais selon un format de résistance chimique. Les nouveaux matériaux sensibles au sulfure comprennent un seul matériau d'oxyde composant ou un composite de deux matériaux d'oxyde ou plus. Les capteurs répondent de manière réversible à H2S dans un environnement de gaz réducteur, avec un changement correspondant de leur résistance électrique qui peut être utilisé pour quantifier la quantité de H2S présent dans le gaz réducteur.

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