专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06843900B2 Potentiometric NOx sensors based on yttria-stabilized zirconia with zeolite modified electrode 有权
标题翻译：基于氧化钇稳定的氧化锆与沸石改性电极的电位式NOx传感器
公开(公告)号：US06843900B2
公开(公告)日：2005-01-18
申请号：US10040036
申请日：2002-01-03
申请人： Prabir K. Dutta , Nicholas F. Szabo , Hongbin Du , Sheikh A. Akbar
发明人： Prabir K. Dutta , Nicholas F. Szabo , Hongbin Du , Sheikh A. Akbar
IPC分类号： G01N27/49 , G01N33/00 , H01C7/00 , G01N27/407
CPC分类号： H01C7/003 , C04B35/486 , C04B2235/3225 , C04B2235/604 , G01N27/4074
摘要： A potentiometric sensor for nitrogen oxide (NOX) measurement based on yttria-stabilized zirconia with a zeolite-modified electrode is presented. A potentiometric sensor of the present invention comprises a tube having an interior and an exterior. A cap member comprising yttria-stabilized zirconia closes one end of the tube. The cap member has an interior surface exposed to the interior of the tube where a first electrode is disposed. The first electrode is then covered with a zeolite layer. A second electrode is disposed on the exterior of the cap member.
摘要翻译：提出了一种基于氧化钇稳定的氧化锆与沸石改性电极进行氮氧化物（NOX）测量的电位传感器。本发明的电位传感器包括具有内部和外部的管。包含氧化钇稳定的氧化锆的盖构件封闭管的一端。盖构件具有暴露于管的内部的内表面，其中设置有第一电极。然后用沸石层覆盖第一电极。第二电极设置在盖构件的外部。

2. 发明申请

US20090095626A1 Carbon dioxide sensor 有权
标题翻译：二氧化碳传感器
公开(公告)号：US20090095626A1
公开(公告)日：2009-04-16
申请号：US11974580
申请日：2007-10-15
申请人： Prabir K. Dutta , Inhee Lee , Sheikh A. Akbar
发明人： Prabir K. Dutta , Inhee Lee , Sheikh A. Akbar
IPC分类号： G01N27/407
CPC分类号： G01N27/4074 , G01N27/4075
摘要： The present invention generally relates to carbon dioxide (CO2) sensors. In one embodiment, the present invention relates to a carbon dioxide (CO2) sensor that incorporates lithium phosphate (Li3PO4) as an electrolyte and sensing electrode comprising a combination of lithium carbonate (Li2CO3) and barium carbonate (BaCO3). In another embodiment, the present invention relates to a carbon dioxide (CO2) sensor has a reduced sensitivity to humidity due to a sensing electrode with a layered structure of lithium carbonate and barium carbonate. In still another embodiment, the present invention relates to a method of producing carbon dioxide (CO2) sensors having lithium phosphate (Li3PO4) as an electrolyte and sensing electrode comprising a combination of lithium carbonate (Li2CO3) and barium carbonate (BaCO3).
摘要翻译：本发明一般涉及二氧化碳（CO2）传感器。在一个实施方案中，本发明涉及一种二氧化碳（CO2）传感器，其包含作为电解质的磷酸锂（Li 3 PO 4）和包含碳酸锂（Li 2 CO 3）和碳酸钡（BaCO 3）的组合的感测电极。在另一个实施方案中，本发明涉及二氧化碳（CO 2）传感器由于具有碳酸锂和碳酸钡的层状结构的感测电极而对湿度的敏感性降低。在另一个实施方案中，本发明涉及一种生产具有磷酸锂（Li 3 PO 4）作为电解质的二氧化碳（CO 2）传感器和包含碳酸锂（Li 2 CO 3）和碳酸钡（BaCO 3）的组合的感测电极的方法。

3. 发明申请

US20080209982A1 ROBUST HIGH TEMPERATURE COMPOSITE AND CO SENSOR MADE FROM SUCH COMPOSITE 有权
标题翻译：稳定的高温复合材料和由这种复合材料制成的传感器
公开(公告)号：US20080209982A1
公开(公告)日：2008-09-04
申请号：US12040597
申请日：2008-02-29
申请人： Prabir K. Dutta , Ramamoorthy Ramasamy , Xiaogan Li , Sheikh A. Akbar
发明人： Prabir K. Dutta , Ramamoorthy Ramasamy , Xiaogan Li , Sheikh A. Akbar
IPC分类号： G01N33/00 , B32B15/04 , B32B3/26 , B22F3/11
CPC分类号： G01N27/127 , B22F3/114 , C22C29/12 , Y10T428/249957
摘要： Described herein is a composite exhibiting a change in electrical resistance proportional to the concentration of a reducing gas present in a gas mixture, detector and sensor devices comprising the composite, a method for making the composite and for making devices comprising the composite, and a process for detecting and measuring a reducing gas in an atmosphere. In particular, the reducing gas may be carbon monoxide and the composite may comprise rutile-phase TiO2 particles and platinum nanoclusters. The composite, upon exposure to a gas mixture containing CO in concentrations of up to 10,000 ppm, exhibits an electrical resistance proportional to the concentration of the CO present. The composite is useful for making sensitive, low drift, fast recovering detectors and sensors, and for measuring CO concentrations in a gas mixture present at levels from sub-ppm up to 10,000 ppm. The composites, and devices made from the composites, are stable and operable in a temperature range of from about 450° C. to about 700° C., such as may be found in a combustion chamber.
摘要翻译：本文描述的是表现出与存在于气体混合物中的还原气体的浓度成比例的电阻变化的复合材料，包括复合材料的检测器和传感器装置，制备复合材料的方法和用于制造包含该复合材料的装置的方法，用于检测和测量气氛中的还原气体。特别地，还原气体可以是一氧化碳，并且复合材料可以包括金红石相TiO 2颗粒和铂纳米团簇。该复合材料在暴露于浓度高达10,000ppm的CO的气体混合物时，呈现与存在的CO浓度成比例的电阻。该复合材料可用于制造敏感，低漂移，快速恢复检测器和传感器，以及用于测量气体混合物中的CO浓度，其含量范围从ppm到10,000 ppm。复合材料和由复合材料制成的装置在约450℃至约700℃的温度范围内是稳定的和可操作的，例如可以在燃烧室中找到。

4. 发明授权

US08057653B2 Carbon dioxide sensor 有权
标题翻译：二氧化碳传感器
公开(公告)号：US08057653B2
公开(公告)日：2011-11-15
申请号：US11974580
申请日：2007-10-15
申请人： Prabir K. Dutta , Inhee Lee , Sheikh A. Akbar
发明人： Prabir K. Dutta , Inhee Lee , Sheikh A. Akbar
IPC分类号： G01N27/407
CPC分类号： G01N27/4074 , G01N27/4075
摘要： The present invention generally relates to carbon dioxide (CO2) sensors. In one embodiment, the present invention relates to a carbon dioxide (CO2) sensor that incorporates lithium phosphate (Li3PO4) as an electrolyte and sensing electrode comprising a combination of lithium carbonate (Li2CO3) and barium carbonate (BaCO3). In another embodiment, the present invention relates to a carbon dioxide (CO2) sensor has a reduced sensitivity to humidity due to a sensing electrode with a layered structure of lithium carbonate and barium carbonate. In still another embodiment, the present invention relates to a method of producing carbon dioxide (CO2) sensors having lithium phosphate (Li3PO4) as an electrolyte and sensing electrode comprising a combination of lithium carbonate (Li2CO3) and barium carbonate (BaCO3).
摘要翻译：本发明一般涉及二氧化碳（CO2）传感器。在一个实施方案中，本发明涉及一种二氧化碳（CO2）传感器，其包含作为电解质的磷酸锂（Li 3 PO 4）和包含碳酸锂（Li 2 CO 3）和碳酸钡（BaCO 3）的组合的感测电极。在另一个实施方案中，本发明涉及二氧化碳（CO 2）传感器由于具有碳酸锂和碳酸钡的层状结构的感测电极而对湿度的敏感性降低。在另一个实施方案中，本发明涉及一种生产具有磷酸锂（Li 3 PO 4）作为电解质的二氧化碳（CO 2）传感器和包含碳酸锂（Li 2 CO 3）和碳酸钡（BaCO 3）的组合的感测电极的方法。

5. 发明授权

US07694547B2 Robust high temperature composite and CO sensor made from such composite 有权
标题翻译：坚固的高温复合材料和CO传感器由这样的复合材料制成
公开(公告)号：US07694547B2
公开(公告)日：2010-04-13
申请号：US12040597
申请日：2008-02-29
申请人： Prabir K. Dutta , Ramamoorthy Ramasamy , Xiaogan Li , Sheikh A. Akbar
发明人： Prabir K. Dutta , Ramamoorthy Ramasamy , Xiaogan Li , Sheikh A. Akbar
IPC分类号： G01N27/04
CPC分类号： G01N27/127 , B22F3/114 , C22C29/12 , Y10T428/249957
摘要： Described herein is a composite exhibiting a change in electrical resistance proportional to the concentration of a reducing gas present in a gas mixture, detector and sensor devices comprising the composite, a method for making the composite and for making devices comprising the composite, and a process for detecting and measuring a reducing gas in an atmosphere. In particular, the reducing gas may be carbon monoxide and the composite may comprise rutile-phase TiO2 particles and platinum nanoclusters. The composite, upon exposure to a gas mixture containing CO in concentrations of up to 10,000 ppm, exhibits an electrical resistance proportional to the concentration of the CO present. The composite is useful for making sensitive, low drift, fast recovering detectors and sensors, and for measuring CO concentrations in a gas mixture present at levels from sub-ppm up to 10,000 ppm. The composites, and devices made from the composites, are stable and operable in a temperature range of from about 450° C. to about 700° C., such as may be found in a combustion chamber.
摘要翻译：本文描述的是表现出与存在于气体混合物中的还原气体的浓度成比例的电阻变化的复合材料，包括复合材料的检测器和传感器装置，制备复合材料的方法和用于制造包含该复合材料的装置的方法，用于检测和测量气氛中的还原气体。特别地，还原气体可以是一氧化碳，并且复合物可以包括金红石相TiO 2颗粒和铂纳米团簇。该复合材料在暴露于浓度高达10,000ppm的CO的气体混合物时，呈现与存在的CO浓度成比例的电阻。该复合材料可用于制造敏感，低漂移，快速恢复检测器和传感器，以及用于测量气体混合物中的CO浓度，其含量范围从ppm到10,000 ppm。复合材料和由复合材料制成的装置在约450℃至约700℃的温度范围内是稳定的和可操作的，例如可以在燃烧室中找到。

6. 发明授权

US5439580A Solid-state gas sensor for carbon monoxide and hydrogen 失效
标题翻译：用于一氧化碳和氢气的固态气体传感器
公开(公告)号：US5439580A
公开(公告)日：1995-08-08
申请号：US147711
申请日：1993-11-05
申请人： Sheikh A. Akbar , Abdul M. Azad , Lora B Younkman
发明人： Sheikh A. Akbar , Abdul M. Azad , Lora B Younkman
IPC分类号： C04B35/46 , G01N27/12 , G01N27/26
CPC分类号： G01N27/12 , C04B35/46
摘要： Anatase titania is used as the sensitive ceramic for sensing the amount of carbon monoxide and hydrogen in mixed gasses where the changes in electric current characteristics passing through such ceramic when it is exposed to such gases is used to determine the amount of carbon monoxide and hydrogen present. Such sensor is made selective to hydrogen when alumina is included in the ceramic and to carbon monoxide when yttria is included. Additions of a catalytic metal particularly iron or palladium is beneficial to the anatase titania-yttria ceramic in its selective sensing of carbon monoxide.
摘要翻译：锐钛型二氧化钛被用作敏感陶瓷，用于感测混合气体中一氧化碳和氢气的量，其中当暴露于这种气体时，通过这种陶瓷的电流特性的变化用于确定一氧化碳和氢存在的量。当氧化铝包括在陶瓷中时，这种传感器对氢是有选择性的，并且当包括氧化钇时，这种传感器对于一氧化碳是选择性的。催化金属，特别是铁或钯的添加有利于锐钛型二氧化钛 - 氧化钇陶瓷选择性地感测一氧化碳。

7. 发明授权

US5681111A High-temperature thermistor device and method 失效
标题翻译：高温热敏电阻器件及方法
公开(公告)号：US5681111A
公开(公告)日：1997-10-28
申请号：US261941
申请日：1994-06-17
申请人： Sheikh A. Akbar , Weihua Chen , Virginia D. Patton , Ching C. Wang
发明人： Sheikh A. Akbar , Weihua Chen , Virginia D. Patton , Ching C. Wang
IPC分类号： G01K7/22 , H01C7/04 , G01K7/00
CPC分类号： H01C7/043 , G01K7/22
摘要： A method and apparatus for determining the temperature of an environment at an elevated temperature (i.e., one exceeding about 300.degree. C.) wherein oxides that do not melt at such temperatures, do not age significantly at such temperatures and which have a sensitivity for such measurements are employed as thermistor resistors. Such oxides are calcium zirconate, yttria, alumina, dysprosia, magnesia, the oxide combinations alumina-silica, zirconia-silica and titania-silica. Measurements in electric current change is preferably the measurement of alternating current rather than the conventional dc current. A particularly useful instrument for such measurements consists of such a resistor with a laminate of connector metal such as diffusion bonded precious metal sheets or foils on separated surface areas as electrode connectors.
摘要翻译：一种用于在高温下（即超过约300℃）测定环境温度的方法和装置，其中在这样的温度下不熔化的氧化物在这样的温度下不会显着老化，并且对这种温度具有敏感性测量用作热敏电阻电阻。这种氧化物是锆酸钙，氧化钇，氧化铝，镝，氧化镁，氧化铝 - 二氧化硅，氧化锆 - 二氧化硅和二氧化钛 - 二氧化硅。电流变化的测量优选是交流电流的测量而不是传统的直流电流。用于这种测量的特别有用的仪器包括这样的电阻器，其具有连接器金属的层压体，例如在作为电极连接器的分离的表面区域上的扩散结合的贵金属片或箔。

8. 发明授权

US07303723B2 Method of forming nanostructures on ceramics 失效
标题翻译：在陶瓷上形成纳米结构的方法
公开(公告)号：US07303723B2
公开(公告)日：2007-12-04
申请号：US10678772
申请日：2003-10-03
申请人： Sheikh A. Akbar , Sehoon Yoo , Kenneth H. Sandhage
发明人： Sheikh A. Akbar , Sehoon Yoo , Kenneth H. Sandhage
IPC分类号： C04B41/00
CPC分类号： B82Y30/00 , B01J21/063 , B01J32/00 , B01J35/06 , C04B35/46 , C04B35/62259 , C04B41/0072 , C04B41/009 , C04B41/80 , C04B2235/5454 , C04B2235/604 , C04B2235/656 , C04B2235/6582 , C04B2235/6584 , C04B2235/6586 , C04B2235/6588 , C04B2235/664 , C04B2235/72 , C04B2235/77 , C04B2235/786 , G01N27/127 , Y10S977/763 , C04B41/4519 , C04B41/4596 , C04B41/5041
摘要： A method for manufacturing oriented arrays of ceramic or metal oxide nanostructures, such as titania (TiO2) nanofibers. The nanofibers are formed on the surface of a body that is first sintered at a temperature in the range of about 1,100 to about 1,400 degrees Celsius. Subsequently, the surface is exposed to an H2-bearing gas, such as H2 and N2 in a ratio of about 5:95 at about 700 degrees Celsius for about 8 hours. During heat treatment in the gas phase reaction, sintered titania grains transform into arrays of nanofibers oriented in the same crystallographic direction.
摘要翻译：用于制造陶瓷或金属氧化物纳米结构的定向阵列的方法，例如二氧化钛（TiO 2）纳米纤维。纳米纤维形成在主体的表面上，其首先在约1100至约1400摄氏度的温度下烧结。随后，将该表面以约5:95的比例暴露于H 2 2主要气体，例如H 2 N 2和N 2 N 2 约700摄氏度约8小时。在气相反应的热处理过程中，烧结的二氧化钛晶粒转变成相同晶体取向的纳米纤维阵列。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式