-
公开(公告)号：US07287412B2
公开(公告)日：2007-10-30
申请号：US10854420
申请日：2004-05-26
申请人： Kwok Ng , Greg Monty , Yunjun Li , Zvi Yaniv , Prabhu Soundarrajan
发明人： Kwok Ng , Greg Monty , Yunjun Li , Zvi Yaniv , Prabhu Soundarrajan
CPC分类号： B82Y15/00 , G01N27/127 , G01N33/005
摘要： A hydrogen sensor and/or switch fabricated from an array of nanowires or a nanoparticle thick film composed of metal or metal alloys. The sensor and/or switch demonstrates a wide operating temperature range and shortened response time due to fabrication materials and methods. The nanowires or nanoparticle thick films demonstrate an increase in conductivity in the presence of hydrogen.
摘要翻译： 由纳米线阵列或由金属或金属合金构成的纳米颗粒厚膜制成的氢传感器和/或开关。 由于制造材料和方法，传感器和/或开关显示出宽的工作温度范围和缩短的响应时间。 在存在氢的情况下，纳米线或纳米颗粒厚膜表现出导电性的增加。
-
公开(公告)号：US07762121B2
公开(公告)日：2010-07-27
申请号：US11928373
申请日：2007-10-30
申请人： Kwok Ng , Greg Monty , Yunjun Li , Zvi Yaniv , Prabhu Soundarrajan
发明人： Kwok Ng , Greg Monty , Yunjun Li , Zvi Yaniv , Prabhu Soundarrajan
CPC分类号： B82Y15/00 , G01N27/127 , G01N33/005
摘要： A hydrogen sensor and/or switch fabricated from an array of nanowires or a nanoparticle thick film composed of metal or metal alloys. The sensor and/or switch demonstrates a wide operating temperature range and shortened response time due to fabrication materials and methods. The nanowires or nanoparticle thick films demonstrate an increase in conductivity in the presence of hydrogen.
摘要翻译： 由纳米线阵列或由金属或金属合金构成的纳米颗粒厚膜制成的氢传感器和/或开关。 由于制造材料和方法，传感器和/或开关显示出宽的工作温度范围和缩短的响应时间。 在存在氢的情况下，纳米线或纳米颗粒厚膜表现出导电性的增加。
-
3.发明申请公开(公告)号：US20080078234A1
公开(公告)日：2008-04-03
申请号：US11486558
申请日：2006-07-14
申请人： Greg Monty , Kwok Ng , Mohshi Yang
发明人： Greg Monty , Kwok Ng , Mohshi Yang
CPC分类号： G01N27/127 , G01N33/005
摘要： The present invention provides for variable-range hydrogen sensors and methods for making same. Such variable-range hydrogen sensors comprise a series of fabricated Pd—Ag (palladium-silver) nanowires—each wire of the series having a different Ag to Pd ratio—with nanobreakjunctions in them and wherein the nanowires have predefined dimensions and orientation. When the nanowires are exposed to H2, their lattace swells when the H2 concentration reaches a threshold value (unique to that particular ratio of Pd to Ag). This causes the nanobreakjunctions to close leading to a 6-8 orders of magnitude decrease in the resistance along the length of the wire and providing a sensing mechanism for a range of hydrogen concentrations.
摘要翻译： 本发明提供可变范围氢传感器及其制造方法。 这种可变范围氢传感器包括一系列制备的Pd-Ag（钯 - 银）纳米线 - 该系列中的每根线具有不同的Ag与Pd的比例，并且其中纳米区域结合在一起，并且其中纳米线具有预定义的尺寸和取向。 当纳米线暴露于H 2 O 2时，当H 2 O 2浓度达到阈值（对于特定的Pd与Ag的比率是唯一的）时，它们的晶格膨胀。 这导致纳米划痕结合，导致沿导线长度的电阻降低6-8个数量级，并为一定范围的氢浓度提供感测机制。
-
公开(公告)号：US07237429B2
公开(公告)日：2007-07-03
申请号：US11063119
申请日：2005-02-22
申请人： Greg Monty , Kwok Ng , Mohshi Yang , Richard Finh
发明人： Greg Monty , Kwok Ng , Mohshi Yang , Richard Finh
IPC分类号： G01N7/00
CPC分类号： G01N27/127 , G01N33/005
摘要： The present invention provides for novel hydrogen sensors and methods for making same. In some embodiments, such novel hydrogen sensors are continuous-range hydrogen sensors comprising Pd—Ag nanoparticles arrayed as nanowires or two-dimensional shapes on a resistive surface. Such continuous-range hydrogen sensors are capable of measuring a wide range of hydrogen gas concentration over a wide temperature range. Unlike existing hydrogen sensors that experience a large change in resistance at a certain hydrogen concentration, the continuous-range hydrogen sensor of the present invention changes resistance continuously over a broad range of hydrogen concentration. This continuous change varies slowly with hydrogen concentration and is predictable such that the continuous-range hydrogen sensor can be used to measure hydrogen concentration continuously from a few ppm to 40,000 ppm level or higher over a broad range of temperatures (e.g., −40° C. to +150° C.).
摘要翻译： 本发明提供新颖的氢传感器及其制造方法。 在一些实施方案中，这种新型氢传感器是连续范围的氢传感器，其包括在电阻表面上排列为纳米线或二维形状的Pd-Ag纳米颗粒。 这种连续范围的氢传感器能够在宽的温度范围内测量宽范围的氢气浓度。 与现有氢传感器不同，在一定的氢浓度下，电阻的变化很大，本发明的连续范围氢传感器在宽范围的氢浓度下连续地改变电阻。 这种连续变化随氢气浓度而变化缓慢，并且是可预测的，使得连续范围氢传感器可用于在宽范围的温度（例如-40℃）下连续测量从几ppm到40,000ppm水平或更高的氢浓度 至+ 150℃）。
-
5.发明授权公开(公告)号：US07104111B2
公开(公告)日：2006-09-12
申请号：US10909797
申请日：2004-07-30
申请人： Greg Monty , Kwok Ng , Mohshi Yang
发明人： Greg Monty , Kwok Ng , Mohshi Yang
IPC分类号： G01N7/00
CPC分类号： G01N27/127 , G01N33/005
摘要： The present invention provides for variable-range hydrogen sensors and methods for making same. Such variable-range hydrogen sensors comprise a series of fabricated Pd—Ag (palladium-silver) nanowires—each wire of the series having a different Ag to Pd ratio—with nanobreakjunctions in them and wherein the nanowires have predefined dimensions and orientation. When the nanowires are exposed to H2, their lattace swells when the H2 concentration reaches a threshold value (unique to that particular ratio of Pd to Ag). This causes the nanobreakjunctions to close leading to a 6–8 orders of magnitude decrease in the resistance along the length of the wire and providing a sensing mechanism for a range of hydrogen concentrations.
摘要翻译： 本发明提供可变范围氢传感器及其制造方法。 这种可变范围氢传感器包括一系列制备的Pd-Ag（钯 - 银）纳米线 - 该系列中的每根线具有不同的Ag与Pd的比例，并且其中纳米区域结合在一起，并且其中纳米线具有预定义的尺寸和取向。 当纳米线暴露于H 2 O 2时，当H 2 O 2浓度达到阈值（对于特定的Pd与Ag的比率是唯一的）时，它们的晶格膨胀。 这导致纳米划痕结合，导致沿导线长度的电阻降低6-8个数量级，并为一定范围的氢浓度提供感测机制。
-
公开(公告)号：US20050005675A1
公开(公告)日：2005-01-13
申请号：US10909797
申请日：2004-07-30
申请人： Greg Monty , Kwok Ng , Mohshi Yang
发明人： Greg Monty , Kwok Ng , Mohshi Yang
CPC分类号： G01N27/127 , G01N33/005
摘要： The present invention provides for variable-range hydrogen sensors and methods for making same. Such variable-range hydrogen sensors comprise a series of fabricated Pd—Ag (palladium-silver) nanowires—each wire of the series having a different Ag to Pd ratio—with nanobreakjunctions in them and wherein the nanowires have predefined dimensions and orientation. When the nanowires are exposed to H2, their lattace swells when the H2 concentration reaches a threshold value (unique to that particular ratio of Pd to Ag). This causes the nanobreakjunctions to close leading to a 6-8 orders of magnitude decrease in the resistance along the length of the wire and providing a sensing mechanism for a range of hydrogen concentrations.
-
7.发明授权公开(公告)号：US07367215B2
公开(公告)日：2008-05-06
申请号：US11486558
申请日：2006-07-14
申请人： Greg Monty , Kwok Ng , Mohshi Yang
发明人： Greg Monty , Kwok Ng , Mohshi Yang
IPC分类号： G01N7/00
CPC分类号： G01N27/127 , G01N33/005
摘要： The present invention provides for variable-range hydrogen sensors and methods for making same. Such variable-range hydrogen sensors comprise a series of fabricated Pd—Ag (palladium-silver) nanowires—each wire of the series having a different Ag to Pd ratio—with nanobreakjunctions in them and wherein the nanowires have predefined dimensions and orientation. When the nanowires are exposed to H2, their lattice swells when the H2 concentration reaches a threshold value (unique to that particular ratio of Pd to Ag). This causes the nanobreakjunctions to close leading to a 6-8 orders of magnitude decrease in the resistance along the length of the wire and providing a sensing mechanism for a range of hydrogen concentrations.
摘要翻译： 本发明提供可变范围氢传感器及其制造方法。 这种可变范围氢传感器包括一系列制备的Pd-Ag（钯 - 银）纳米线 - 该系列中的每根线具有不同的Ag与Pd的比例，并且其中纳米区域结合在一起，并且其中纳米线具有预定义的尺寸和取向。 当纳米线暴露于H 2 O 2时，当H 2 O 2浓度达到阈值（对于特定的Pd与Ag的比率是唯一的）时，它们的晶格膨胀。 这导致纳米划痕结合，导致沿导线长度的电阻降低6-8个数量级，并为一定范围的氢浓度提供感测机制。
-
公开(公告)号：US20050155858A1
公开(公告)日：2005-07-21
申请号：US11063119
申请日：2005-02-22
申请人： Greg Monty , Kwok Ng , Mohshi Yang , Richard Finh
发明人： Greg Monty , Kwok Ng , Mohshi Yang , Richard Finh
CPC分类号： G01N27/127 , G01N33/005
摘要： The present invention provides for novel hydrogen sensors and methods for making same. In some embodiments, such novel hydrogen sensors are continuous-range hydrogen sensors comprising Pd—Ag nanoparticles arrayed as nanowires or two-dimensional shapes on a resistive surface. Such continuous-range hydrogen sensors are capable of measuring a wide range of hydrogen gas concentration over a wide temperature range. Unlike existing hydrogen sensors that experience a large change in resistance at a certain hydrogen concentration, the continuous-range hydrogen sensor of the present invention changes resistance continuously over a broad range of hydrogen concentration. This continuous change varies slowly with hydrogen concentration and is predictable such that the continuous-range hydrogen sensor can be used to measure hydrogen concentration continuously from a few ppm to 40,000 ppm level or higher over a broad range of temperatures (e.g., −40° C. to +150° C.).
摘要翻译： 本发明提供新颖的氢传感器及其制造方法。 在一些实施方案中，这种新型氢传感器是连续范围的氢传感器，其包括在电阻表面上排列为纳米线或二维形状的Pd-Ag纳米颗粒。 这种连续范围的氢传感器能够在宽的温度范围内测量宽范围的氢气浓度。 与现有氢传感器不同，在一定的氢浓度下，电阻的变化很大，本发明的连续范围氢传感器在宽范围的氢浓度下连续地改变电阻。 这种连续变化随氢气浓度而变化缓慢，并且是可预测的，使得连续范围氢传感器可用于在宽范围的温度（例如-40℃）下连续测量从几ppm到40,000ppm水平或更高的氢浓度 至+ 150℃）。
-
9.发明授权公开(公告)号：US06849911B2
公开(公告)日：2005-02-01
申请号：US10651220
申请日：2003-08-28
申请人： Greg Monty , Kwok Ng , Mohshi Yang
发明人： Greg Monty , Kwok Ng , Mohshi Yang
CPC分类号： G01N27/127 , G01N33/005
摘要： The present invention provides for variable-range hydrogen sensors and methods for making same. Such variable-range hydrogen sensors comprise a series of fabricated Pd—Ag (palladium-silver) nanowires—each wire of the series having a different Ag to Pd ratio—with nanobreakjunctions in them and wherein the nanowires have predefined dimensions and orientation. When the nanowires are exposed to H2, their lattace swells when the H2 concentration reaches a threshold value (unique to that particular ratio of Pd to Ag). This causes the nanobreakjunctions to close leading to a 6-8 orders of magnitude decrease in the resistance along the length of the wire and providing a sensing mechanism for a range of hydrogen concentrations.
摘要翻译： 本发明提供可变范围氢传感器及其制造方法。 这种可变范围氢传感器包括一系列制备的Pd-Ag（钯 - 银）纳米线 - 该系列中的每根线具有不同的Ag与Pd的比例，并且其中纳米区域结合在一起，并且其中纳米线具有预定义的尺寸和取向。 当纳米线暴露于H2时，当H2浓度达到阈值（Pd与Ag的特定比率独有）时，它们的晶格膨胀。 这导致纳米划痕结合，导致沿导线长度的电阻降低6-8个数量级，并为一定范围的氢浓度提供感测机制。
-
公开(公告)号：US20050103071A1
公开(公告)日：2005-05-19
申请号：US10934710
申请日：2004-09-03
申请人： Kwok Ng
发明人： Kwok Ng
CPC分类号： A44B15/00 , Y10T70/8676 , Y10T70/8757
摘要： A key holder comprising a key ring made of steel wire stock employs a holder body with an annular locking member. The locking member employs a groove for receiving a connector of the key ring and a spring and a steel ball.
摘要翻译： 包括由钢丝绳制成的钥匙环的钥匙保持架采用具有环形锁定件的保持器主体。 锁定构件采用用于接收钥匙环的连接器的槽和弹簧和钢球。
-
-
-
-
-
-
-
-
-
搜索结果
14 条记录 (耗时 0.027 秒)
