公开(公告)号：US20060266659A1

公开(公告)日：2006-11-30

申请号：US11483448

申请日：2006-07-10

申请人： Da Wang ,  Walter Symons ,  Robert Farhat ,  Carlos Valdes ,  Elizabeth Briggs ,  Kaius Polikarpus ,  Joachim Kupe

发明人： Da Wang ,  Walter Symons ,  Robert Farhat ,  Carlos Valdes ,  Elizabeth Briggs ,  Kaius Polikarpus ,  Joachim Kupe

IPC分类号： G01F1/64 ,  G01N27/26

CPC分类号： G01N33/0054 ,  G01N27/4074 ,  Y02A50/246

摘要： One embodiment of an ammonia gas sensor includes: a reference electrode, an ammonia selective sensing electrode and an electrolyte disposed therebetween. The sensing electrode comprises the reaction product of a main material selected from the group consisting of vanadium, tungsten, molybdenum, vanadium oxides, tungsten oxides, molybdenum oxides, and combinations comprising at least one of the foregoing main materials, and an electrically conducting material selected from the group consisting of electrically conductive metals, electrically conductive metal oxides, and combinations comprising at least one of the foregoing.

摘要翻译： 氨气传感器的一个实施例包括：参比电极，氨选择性感测电极和设置在其间的电解质。 感测电极包括选自钒，钨，钼，氧化钒，氧化钨，氧化钼以及包含至少一种前述主要材料的组合的主要材料的反应产物和选择的导电材料 来自由导电金属，导电金属氧化物组成的组，以及包含前述的至少一种的组合。

公开(公告)号：US20070026285A1

公开(公告)日：2007-02-01

申请号：US11192221

申请日：2005-07-28

申请人： Da Wang ,  Walter Symons ,  Robert Farhat ,  Elizabeth Briggs ,  Joachim Kupe

发明人： Da Wang ,  Walter Symons ,  Robert Farhat ,  Elizabeth Briggs ,  Joachim Kupe

IPC分类号： H01M8/12 ,  C04B35/64

CPC分类号： H01M8/1246 ,  C04B35/486 ,  C04B35/6262 ,  C04B2235/3208 ,  C04B2235/3217 ,  C04B2235/3222 ,  C04B2235/3286 ,  C04B2235/5436 ,  C04B2235/604 ,  C04B2235/6567 ,  C04B2235/77 ,  C04B2235/96 ,  C25B9/08 ,  C25B13/04 ,  H01M8/1253 ,  H01M2300/0074 ,  Y02E60/525 ,  Y02P70/56

摘要： Disclosed herein are electrochemical cells comprising a first electrode, a second electrode, and a solid oxide electrolyte disposed between and in ionic communication with the first electrode and the second electrode. The solid oxide electrolyte comprises the reaction product of a solid oxide electrolyte material, an aliovalent cation dopant, and a sintering aid selected from the group consisting of Al2O3, Ca2Al2O5, and combinations comprising at least one of the foregoing. The electrochemical cells can be utilized water electrolyzers, hydrogen pumps and for various gas sensing cells, SOFCs, and the like.

摘要翻译： 本文公开了包含第一电极，第二电极和设置在第一电极和第二电极之间且与第一电极和第二电极离子连通的固体氧化物电解质的电化学电池。 固体氧化物电解质包括固体氧化物电解质材料，二价阳离子掺杂剂和选自Al 2 O 3 3，Ca 以及包含前述的至少一种的组合。 电化学电池可以使用水电解器，氢泵和各种气体感测单元，SOFC等。

公开(公告)号：US20070125647A1

公开(公告)日：2007-06-07

申请号：US11292179

申请日：2005-12-01

申请人： Da Wang ,  Walter Symons ,  Robert Farhat ,  John Kirwan ,  Joachim Kupe ,  Kenneth Mowery

发明人： Da Wang ,  Walter Symons ,  Robert Farhat ,  John Kirwan ,  Joachim Kupe ,  Kenneth Mowery

IPC分类号： G01N27/26

CPC分类号： G01N27/419 ,  H01M8/04089 ,  H01M8/0618

摘要： A sensor includes an oxygen pump cell; an oxygen pump chamber; an emf cell; a reference chamber providing a fluid connection to the reference gas; gas channels in fluid communication with the pump and emf electrodes, the reference gas comprising reformate produced by a fuel reformer fueled by an air-fuel gas mixture having an air-fuel ratio; a reformer electronic control module; a sensor electronic control module; a heater; a temperature sensor disposed in communication with the heater and the sensor control module for maintaining the sensor at a desired operating temperature; a closed loop controlled operation amplifier in electrical communication with the sensor, whereby the oxygen pump cell provides sufficient oxygen ions to oxidize an incoming diffusion-limiting fuel flux to the emf cell and maintain a constant emf at the emf cell, and wherein a current value represents an equivalent to the air-fuel ratio of the air-fuel gas mixture.

摘要翻译： 传感器包括氧气泵电池; 氧气泵室; 电磁场; 提供与参考气体的流体连接的参考室; 与泵和emf电极流体连通的气体通道，所述参考气体包括由具有空燃比的空气 - 燃料气体混合物燃料的燃料重整器产生的重整产物; 重整器电子控制模块; 传感器电子控制模块; 加热器 与所述加热器和所述传感器控制模块连通的温度传感器，用于将所述传感器保持在期望的工作温度; 与所述传感器电连通的闭环控制运算放大器，由此所述氧泵单元提供足够的氧离子以将进入的扩散限制性燃料通量氧化到所述电磁室并且在所述电磁场处保持恒定的电动势，并且其中电流值 表示空气 - 燃料气体混合物的空燃比。

公开(公告)号：US20070045114A1

公开(公告)日：2007-03-01

申请号：US11218152

申请日：2005-09-01

申请人： Da Wang ,  Walter Symons ,  Robert Farhat ,  Sheng Yao ,  Joachim Kupe

发明人： Da Wang ,  Walter Symons ,  Robert Farhat ,  Sheng Yao ,  Joachim Kupe

IPC分类号： G01N27/26

CPC分类号： G01N27/4074 ,  C03C3/091 ,  C03C8/14 ,  F01N2560/021 ,  F01N2610/02 ,  G01N33/0054 ,  Y02A50/246

摘要： A sensor including a species selective electrode and a reference electrode having an electrolyte layer disposed therebetween; a reference gas channel in fluid communication with the reference electrode; a heater and a temperature sensor; wherein the species selective electrode is disposed on a first side of an insulating layer separating the species selective electrode from the electrolyte layer, the insulating layer having a first substantially solid area and a second area having an opening pattern extending through the insulating layer; the species selective electrode comprising a species sensing electrode portion disposed on the opening pattern of the insulating layer so as to contact the electrolyte layer through the opening pattern and a non-active electrode lead portion disposed over the first substantially solid area so that the non-active electrode lead portion is in electrical communication with the species sensing electrode portion and is free from contact with the electrolyte layer.

摘要翻译： 一种传感器，包括种类选择性电极和参考电极，其间设置有电解质层; 与参比电极流体连通的参考气体通道; 加热器和温度传感器; 其中所述物质选择电极设置在绝缘层的第一侧，所述绝缘层将所述物质选择性电极与所述电解质层分离，所述绝缘层具有第一基本上固体区域和具有延伸穿过所述绝缘层的开口图案的第二区域; 所述物质选择电极包括设置在所述绝缘层的开口图案上的物种感测电极部分，以便通过所述开口图案接触所述电解质层，以及设置在所述第一基本上固体区域上的非有效电极引线部分， 有源电极引线部分与物种感测电极部分电连通并且不与电解质层接触。

公开(公告)号：US20070080075A1

公开(公告)日：2007-04-12

申请号：US11538252

申请日：2006-10-03

申请人： Da Wang ,  Walter Symons ,  Robert Farhat ,  Sheng Yao ,  Joachim Kupe

发明人： Da Wang ,  Walter Symons ,  Robert Farhat ,  Sheng Yao ,  Joachim Kupe

IPC分类号： G01F1/64 ,  G01N27/26

CPC分类号： G01N33/0037 ,  G01N27/4074 ,  Y02A50/245

摘要： Disclosed herein are NOx sensors and methods of using the same. In one embodiment, a method for sensing NOx comprises: contacting a first NOx electrode with the gas, contacting a second NOx electrode with the gas, determining a NO2 emf between the first NOX electrode and a first reference electrode, determining a NOx emf between the second NOx electrode and a second reference electrode, and determining a NO2 concentration and a NO concentration using the NO2 emf and the NOx emf. The first electrode can be at a first temperature of greater than or equal to about 700 ° C., and the second electrode can be at a second temperature of about 500 ° C. to about 650 ° C.

摘要翻译： 本文公开了NOx传感器及其使用方法。 在一个实施例中，用于感测NOx的方法包括：使第一NOx电极与气体接触，使第二NOx电极与气体接触，确定第一NO x电极和第一参考电极之间的NO 2 电极，确定第二NOx电极和第二参比电极之间的NOx电动势，以及使用NO 2 2 emf和NO x emf确定NO 2浓度和NO浓度 。 第一电极可以处于大于或等于约700℃的第一温度，并且第二电极可以处于约500℃至约650℃的第二温度。

公开(公告)号：US20060151338A1

公开(公告)日：2006-07-13

申请号：US11034125

申请日：2005-01-12

申请人： Da Wang ,  Walter Symons ,  Robert Farhat ,  Joachim Kupe ,  David Ehle ,  Alfred Webster ,  Paul Kikuchi

发明人： Da Wang ,  Walter Symons ,  Robert Farhat ,  Joachim Kupe ,  David Ehle ,  Alfred Webster ,  Paul Kikuchi

IPC分类号： G01F1/64 ,  G01N27/26

CPC分类号： G01N27/4071 ,  G01N27/4075

摘要： A gas sensor system includes an ammonia-sensing cell for generating a signal upon exposure to an unknown gas comprising ammonia, an A/F cell for generating a signal upon exposure to hydrocarbons in the gas, a heater in thermal communication with the cells and a housing in which the cells and the heater are mounted. The housing permits an unknown gas to flow therethrough for contact with the cells, and there is a sensor control circuit in communication with the cells. The sensor control circuit is configured to utilize the signals from the cells to generate an ammonia concentration signal indicating the concentration of ammonia in the unknown gas. Ammonia may be sensed in an unknown gas by heating such cells to selected working temperatures, exposing them to an unknown gas, obtaining signals from the cells, and using the cell signals to determine the ammonia content.

摘要翻译： 气体传感器系统包括用于在暴露于包含氨的未知气体时产生信号的氨感测单元，用于在暴露于气体中的烃时产生信号的A / F单元，与单元热连通的加热器 安装电池和加热器的外壳。 壳体允许未知气体流过其中以与电池接触，并且存在与电池连通的传感器控制电路。 传感器控制电路被配置为利用来自单元的信号产生指示未知气体中的氨浓度的氨浓度信号。 可以通过将这样的细胞加热至选定的工作温度，将其暴露于未知气体，从细胞获得信号，并使用细胞信号来确定氨含量，可以在未知气体中感测氨。

公开(公告)号：US20070080074A1

公开(公告)日：2007-04-12

申请号：US11538240

申请日：2006-10-03

申请人： Da Yu Wang ,  Walter Symons ,  Robert Farhat ,  Sheng Yao

发明人： Da Yu Wang ,  Walter Symons ,  Robert Farhat ,  Sheng Yao

IPC分类号： G01F1/64 ,  G01N27/26

CPC分类号： G01N27/4074 ,  F01N2560/021 ,  G01N27/4073

摘要： Disclosed herein are methods of sensing NH3 in a gas and sensors therefore. In one embodiment, a method of sensing NH3 in a gas comprises: contacting a NOx electrode with the gas, and determining if a NOx emf between the NOx electrode and a reference electrode is greater than a selected emf. If the NOx emf is greater than the selected emf, a NH3 emf between an NH3 electrode and the reference electrode is determined. If the NOx emf is not greater than the selected emf, a NH3 emf between the NH3 electrode and the NOx electrode is determined.

摘要翻译： 这里公开了检测气体中的NH 3和传感器的方法。 在一个实施例中，在气体中检测NH 3的方法包括：使NO x电极与气体接触，以及确定NOx电极和参考电极之间的NOx电势是否大于所选择的电动势 。 如果NOx电动势大于所选择的电动势，则确定NH 3 3电极和参比电极之间的NH 3电极。 如果NOx电动势不大于所选择的电动势，则确定NH 3 3电极和NOx电极之间的NH 3电极。