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    • 6. 发明公开
    • 연속-범위의 수소 센서
    • 连续传感器
    • KR1020070113223A
    • 2007-11-28
    • KR1020077020863
    • 2006-02-21
    • 어플라이드 나노테크 홀딩스, 인크.
    • 몬티,그레그엔지,크웍양,모쉬핑크,리차드리
    • G01N27/26
    • G01N27/127G01N33/005
    • 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).
    • 本发明提供了新颖的氢传感器及其制造方法。 在一些实施方案中,这样的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℃)。
    • 10. 发明公开
    • 가변적인 범위의 수소 센서로 사용되는 금속 나노와이어의형성
    • 形成用作可变范围的氢传感器的金属纳米颗粒
    • KR1020050071483A
    • 2005-07-07
    • KR1020057003299
    • 2003-08-29
    • 어플라이드 나노테크 홀딩스, 인크.
    • 몬티,그레그엔쥐,쿽양,모쉬
    • G01N27/407B82B1/00B82B3/00
    • G01N27/127G01N33/005
    • The present invention provides for variable-range hydrogen sensors (502) and methods for making same. Such variable-range hydrogen sensors (502) comprise a series of fabricated Pd- Ag (palladium-silver) nanowires (106, 301) - each wire of the series having a different Ag to Pd ratio-with nanobreakjunctions (302) in them and wherein the nanowires (106, 301) have predefined dimensions and orientation. When the nanowires (106, 301) 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 (302) 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.
    • 本发明提供可变范围氢传感器(502)及其制造方法。 这种可变范围氢传感器(502)包括一系列制备的Pd-Ag(钯 - 银)纳米线(106,301) - 其中具有不同Ag与Pd比的每个线与纳米区域(302)在其中,以及 其中所述纳米线(106,301)具有预定义的尺寸和取向。 当纳米线(106,301)是。 当H2浓度达到阈值(Pd与Ag的特定比例特有)时,它们的晶格膨胀。 这导致纳米区域(302)闭合,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。