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NOx storage materials for sensor applications

US9358525B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9358525-B2
Application numberUS-63034409-A
CountryUS
Kind codeB2
Filing dateDec 3, 2009
Priority dateDec 4, 2008
Publication dateJun 7, 2016
Grant dateJun 7, 2016

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A NO x storage material comprises a support, a potassium salt impregnated on the support, the potassium impregnated on the support is promoted with a platinum group metal, and wherein the NO x storage material has an electrical property which changes based on the amount of NO x loading on the NO x storage material. An apparatus for direct NO x measurement includes a sensor coated with the NO x storage material. A method of determining NO x flux in a NO x containing gas comprises exposing the gas to the apparatus and converting a signal developed by the apparatus to a signal representative of the NO x flux.

First claim

Opening claim text (preview).

What is claimed: 1. A NO x storage material comprising: a support; and potassium permaganate impregnated on the support, wherein the potassium impregnated on the support is promoted with a platinum group metal, and wherein the NO x storage material has an electrical property which changes based on an amount of NO x loading on the NO x storage material, wherein the platinum group metal is selected from the group consisting of palladium, platinum, iridium, rhodium, ruthenium, and osmium. 2. The NO x storage material according to claim 1 , wherein the platinum group metal platinum. 3. The NO x storage material according to claim 1 , wherein the support is selected from the group consisting of alumina, silica, titania, zirconia, ceria, and mixtures thereof. 4. The NO x storage material according to claim 1 , wherein the support is alumina. 5. The NO storage material according to claim 4 , wherein the support is lanthanum-stabilized alumina. 6. The NO storage material according to claim 1 , wherein the electrical property is impedance.

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What does patent US9358525B2 cover?
A NO x storage material comprises a support, a potassium salt impregnated on the support, the potassium impregnated on the support is promoted with a platinum group metal, and wherein the NO x storage material has an electrical property which changes based on the amount of NO x loading on the NO x storage material. An apparatus for direct NO x measurement includes a sensor coated with the …
Who is the assignee on this patent?
Chen Hai-Ying, Mulla Shadab, Ballinger Todd Howard, and 1 more
What technology area does this patent fall under?
Primary CPC classification B01J23/58. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Jun 07 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).