Abstract:
A gas sensitive material comprising SnO2 nanocrystals doped with In2O3 and an oxide of a platinum group metal, and a method of making the same. The platinum group metal is preferably Pd, but also may include Pt, Ru, Ir, and combinations thereof. The SnO2 nanocrystals have a specific surface of 7 or greater, preferably about 20 m2/g, and a mean particle size of between about 10 nm and about 100 nm, preferably about 40 nm. A gas detection device made from the gas sensitive material deposited on a substrate, the gas sensitive material configured as a part of a current measuring circuit in communication with a heat source.
Abstract:
A gas detection device comprising a measuring circuit, said measuring surface comprising a substrate, a resistance heater bonded to said substrate and a coating, said coating comprising SnO2 nanoparticles doped with In2O3 nanoparticles and Pd oxide, said Pd oxide being formed from a solution of a Pd salt, such as PdCl2. The SnO2 nanocrystals have a specific surface of at least about 50 m2/g, a mean particle size of between about 5 nm and about 20 nm, and the contact points between individual nanoparticles of SnO2 and In2O3 and the associated Pd oxide are less than about 100 Å. The Pd salt solution is a solution of a palladium chloride in a dilute acid solution, such as HCl. The palladium salt to an oxide of palladium at an elevated temperature, as for example, by calcining said oxide of palladium. The palladium Marked Copy oxide is in the form of a coating on nanoparticles of SnO2 and In2O3.
Abstract translation:一种气体检测装置,包括测量电路,所述测量表面包括基底,与所述基底结合的电阻加热器和涂层,所述涂层包含掺杂有In 2 O 3纳米颗粒和Pd氧化物的SnO 2纳米颗粒,所述Pd氧化物由 Pd盐,如PdCl2。 SnO 2纳米晶体具有至少约50m 2 / g的比表面积,约5nm至约20nm的平均粒度,SnO 2和In 2 O 3和相关联的Pd氧化物的单个纳米颗粒之间的接触点小于约 100Å。 Pd盐溶液是氯化钯在稀酸溶液如HCl中的溶液。 将钯盐在升高的温度下与钯的氧化物反应,例如通过煅烧所述钯的氧化物。 钯标记复制氧化物是SnO2和In2O3纳米颗粒上的涂层形式。
Abstract:
A gas sensitive material comprising SnO2 nanocrystals doped with In2O3 and an oxide of a platinum group metal, and a method of making the same. The platinum group metal is preferably Pd, but also may include Pt, Ru, Ir, and combinations thereof. The SnO2 nanocrystals have a specific surface of 7 or greater, preferably about 20 m2/g, and a mean particle size of between about 10 nm and about 100 nm, preferably about 40 nm. A gas detection device made from the gas sensitive material deposited on a substrate, the gas sensitive material configured as a part of a current measuring circuit in communication with a heat source.
Abstract:
A gas sensitive material comprising SnO2 nanocrystals doped with In2O3 and an oxide of a platinum group metal, and a method of making the same. The platinum group metal is preferably Pd, but also may include Pt, Ru, Ir, and combinations thereof. The SnO2 nanocrystals have a specific surface of 7 or greater, preferably about 20 m2/g, and a mean particle size of between about 10 nm and about 100 nm, preferably about 40 nm. A gas detection device made from the gas sensitive material deposited on a substrate, the gas sensitive material configured as a part of a current measuring circuit in communication with a heat source.
Abstract:
A gas detection device comprising a measuring circuit, said measuring surface comprising a substrate, a resistance heater bonded to said substrate and a coating, said coating comprising SnO2 nanoparticles doped with In2O3 nanoparticles and Pd oxide, said Pd oxide being formed from a solution of a Pd salt, such as PdCl2. The SnO2 nanocrystals have a specific surface of at least about 50 m2/g, a mean particle size of between about 5 nm and about 20 nm, and the contact points between individual nanoparticles of SnO2 and In2O3 and the associated Pd oxide are less than about 100 Å. The Pd salt solution is a solution of a palladium chloride in a dilute acid solution, such as HCl. The palladium salt to an oxide of palladium at an elevated temperature, as for example, by calcining said oxide of palladium. The palladium oxide is in the form of a coating on nanoparticles of SnO2 and In2O3.
Abstract translation:一种气体检测装置,包括测量电路,所述测量表面包括基底,与所述基底结合的电阻加热器和涂层,所述涂层包含掺杂有In 2 O 3纳米颗粒和Pd氧化物的SnO 2纳米颗粒,所述Pd氧化物由 Pd盐,如PdCl2。 SnO 2纳米晶体具有至少约50m 2 / g的比表面积,约5nm至约20nm的平均粒度,SnO 2和In 2 O 3和相关联的Pd氧化物的单个纳米颗粒之间的接触点小于约 100Å。 Pd盐溶液是氯化钯在稀酸溶液如HCl中的溶液。 将钯盐在升高的温度下与钯的氧化物反应,例如通过煅烧所述钯的氧化物。 氧化钯为SnO2和In2O3纳米颗粒上的涂层形式。