NOx SENSING MATERIALS AND SENSORS INCORPORATING SAID MATERIALS
Gas-sensitive materials are disclosed which are mixtures or composites of BaSnO3, and another component comprising one or more phases from the group: CuO, Cr2O3, Fe2O3, MnO, NiO, CoO, Bi2O3, Sb2O3, Sb2O5, WO3, ZnO, and SnO2. The mixture may be modified further by the addition in a highly dispersed m...
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| creator | SMITH PETER CAVANAGH LEON |
| description | Gas-sensitive materials are disclosed which are mixtures or composites of BaSnO3, and another component comprising one or more phases from the group: CuO, Cr2O3, Fe2O3, MnO, NiO, CoO, Bi2O3, Sb2O3, Sb2O5, WO3, ZnO, and SnO2. The mixture may be modified further by the addition in a highly dispersed manner of fine (less than about 20 nm) particulates of precious metals (Pt, Pd, Au, Ag) to enhance performance. Advantages include: (a) sensitivity in the range 1-2500 ppm NOx typical of combustion environments, (b) reduced humidity influence, (c) repeatability and reliability, and (d) baseline stability over time. In one embodiment, the material includes a mixture of BaSnO3 and CuO such that CuO is present at 25-50 mol %. |
| format | Patent |
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The mixture may be modified further by the addition in a highly dispersed manner of fine (less than about 20 nm) particulates of precious metals (Pt, Pd, Au, Ag) to enhance performance. Advantages include: (a) sensitivity in the range 1-2500 ppm NOx typical of combustion environments, (b) reduced humidity influence, (c) repeatability and reliability, and (d) baseline stability over time. In one embodiment, the material includes a mixture of BaSnO3 and CuO such that CuO is present at 25-50 mol %.</description><language>eng</language><subject>APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; PHYSICS ; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL ; SPRAYING OR ATOMISING IN GENERAL ; TESTING ; THEIR RELEVANT APPARATUS ; TRANSPORTING</subject><creationdate>2012</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20120628&DB=EPODOC&CC=US&NR=2012161790A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20120628&DB=EPODOC&CC=US&NR=2012161790A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SMITH PETER</creatorcontrib><creatorcontrib>CAVANAGH LEON</creatorcontrib><title>NOx SENSING MATERIALS AND SENSORS INCORPORATING SAID MATERIALS</title><description>Gas-sensitive materials are disclosed which are mixtures or composites of BaSnO3, and another component comprising one or more phases from the group: CuO, Cr2O3, Fe2O3, MnO, NiO, CoO, Bi2O3, Sb2O3, Sb2O5, WO3, ZnO, and SnO2. The mixture may be modified further by the addition in a highly dispersed manner of fine (less than about 20 nm) particulates of precious metals (Pt, Pd, Au, Ag) to enhance performance. Advantages include: (a) sensitivity in the range 1-2500 ppm NOx typical of combustion environments, (b) reduced humidity influence, (c) repeatability and reliability, and (d) baseline stability over time. 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The mixture may be modified further by the addition in a highly dispersed manner of fine (less than about 20 nm) particulates of precious metals (Pt, Pd, Au, Ag) to enhance performance. Advantages include: (a) sensitivity in the range 1-2500 ppm NOx typical of combustion environments, (b) reduced humidity influence, (c) repeatability and reliability, and (d) baseline stability over time. In one embodiment, the material includes a mixture of BaSnO3 and CuO such that CuO is present at 25-50 mol %.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL TESTING THEIR RELEVANT APPARATUS TRANSPORTING |
| title | NOx SENSING MATERIALS AND SENSORS INCORPORATING SAID MATERIALS |
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