Abstract:
A NO x catalyst combination for treating a lean exhaust gas stream comprising an alkaline earth-alumina catalyst and an alkaline earth-zeolite catalyst, arranged on a substrate such that the gas stream first contacts the alkaline earth-alumina catalyst prior to contacting the alkaline earth-zeolite catalyst.
Abstract:
A solid oxide fuel cell is disclosed. The solid oxide fuel cell (10) comprises an electrolyte disposed between and in ionic communication with a first electrode and a second electrode to form an electrochemical cell. At least one spacer (60) is disposed in contact with the electrochemical cell (10). A mat (70) is disposed adjacent to the spacer (60). A solid fuel cell stock comprising at least two solid oxide fuel cells and an interconnect (80) disposed between adjacent fuel cells wherein said interconnect has at least one flow section (100) disposed between an expander (104) and a periphery.
Abstract:
A solid oxide fuel cell is disclosed. The solid oxide fuel cell (10) comprises an electrolyte disposed between and in ionic communication with a first electrode and a second electrode to form an electrochemical cell. At least one spacer (60) is disposed in contact with the electrochemical cell (10). A mat (70) is disposed adjacent to the spacer (60). A solid fuel cell stock comprising at least two solid oxide fuel cells and an interconnect (80) disposed between adjacent fuel cells wherein said interconnect has at least one flow section (100) disposed between an expander (104) and a periphery.
Abstract:
An improved nitrogen oxide catalyst for use with catalytic converters (10) comprises a substrate material comprising a catalyst, an adsorption material layer, and an organometallic precursor comprising an organometallic precursor material and a nitrogen oxide adsorber catalyst material. The organometallic precursor reacts with a base metal oxide present in the catalyst and decomposes upon application to the substrate material, leaving a nitrogen oxide adsorption catalyst material in the adsorption material layer.
Abstract:
A solid oxide fuel cell is disclosed. The solid oxide fuel cell (10) comprises an electrolyte disposed between and in ionic communication with a first electrode and a second electrode to form an electrochemical cell. At least one spacer (60) is disposed in contact with the electrochemical cell (10). A mat (70) is disposed adjacent to the spacer (60). A solid fuel cell stock comprising at least two solid oxide fuel cells and an interconnect (80) disposed between adjacent fuel cells wherein said interconnect has at least one flow section (100) disposed between an expander (104) and a periphery.
Abstract:
A sensor (10) is disclosed that comprises an electrolyte (30) disposed between and in intimate contact with a sensing electrode (20) and a reference electrode (22). A protective coating (31) is disposed on the protective layer (32) adjacent to the sensing electrode (20). The protective coating (31) comprises a mixture of a metal oxide, a zeolite, and an alumina. A method for making the sensor (10) is also disclosed.
Abstract:
An exhaust gas sensor (10) element having an electrochemical cell, a protective material (42) in fluid communication with the electrochemical cell, and a reactive inhibitive coating (28) disposed over the protective material (42). The reactive inhibitive coating (28) prevents the reaction of compounds with acides (e.g., phosphates) in the exhaust gas, which may form a dense glass layer on the outside of the gas sensor (10). The reactive inhibitive coating (28) is either an alkaline earth oxide ethoxide, and/or carbonate that is deposited on the gas sensor (10) to a thickness so as to preferably provide an excess of either the alkaline earth material.
Abstract:
A poison resistant lean NO x catalyst comprising:
a protective coating of a first catalyst support material including a metal-zirconium phosphate component, coated on a second NO x occluding catalyst material.
Abstract:
A NO x control (20) for an exhaust is provided. The NO x control (20) includes a nickel compound and a NO x adsorber. The NO x adsorber is suitable for a high oxygen content exhaust, such as an exhaust from a compression-ignition engine or a lean-burn spark-ignition engine having oxygen content greater than about 1 molar% based on the total exhaust. Systems (10 or 50) for treating an exhaust gas (16 or 56) are also provided, including use of a non-thermal plasma reactor (14) and a NO x control (20), or use of a first non-thermal plasma reactor (54), a particulate trap (60), a second non-thermal plasma reactor (60), and a NO x control (20). Additionally, methods for forming a NO x control (20) are also described, comprising either mixing, milling, or sintering a nickel compound integrally with a NO x adsorber, or processing a nickel compound with a NO x adsorber by mixing, milling, or sintering, washcoating, imbibing, impregnating, physisorbing, chemisorbing, precipitating, vapor depositing, or any combination of at least one of the foregoing processing techniques.