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Method and apparatus for sensing hydrogen gas

A technology for measuring hydrogen and microparticles, applied in the field of hydrogen sensors, can solve problems such as narrow working temperature range, narrow sensitivity range of hydrogen concentration, unpredictable palladium nanowires, etc.

Inactive Publication Date: 2008-08-20
NANO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In summary, for the preparation of pure Pd nanowires at the step edges of graphite, the main problems are: (1) unpredictable composition of Pd NWs; (2) narrow operating temperature range; and (3) narrow sensitivity to hydrogen concentration. scope

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  • Method and apparatus for sensing hydrogen gas
  • Method and apparatus for sensing hydrogen gas
  • Method and apparatus for sensing hydrogen gas

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Embodiment Construction

[0045]In the following description, numerous specific details are set forth, such as specific alloy mixtures, in order to provide a thorough understanding of the present invention. It will be apparent, however, to those skilled in the art that the present invention may be practiced without these specific details. Some details are omitted because such details are not necessary for a complete understanding of the invention and are within the skill of a person of ordinary skill in the relevant art.

[0046] Referring now to the drawings, elements that have been described in the figures are not necessarily shown by numerical range and like or similar elements are designated by the same reference numerals throughout the several figures.

[0047] The present invention focuses on improved devices and methods for sensing hydrogen gas. Adding silver to palladium nanometers greatly increases the sensor's operating temperature range. The combination of silver and palladium also address...

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Abstract

The invention discloses a hydrogen sensor and / or switch made of a nano-line array or a thick nano-partical film composed of metal or metal alloy. Due to the making material and method, the sensor and / or switch shows a relative wide range of working temperature and a reduced response time. The nano-line or the thick nano-partical film shows an increase of the conductivity with the presence of hydrogen.

Description

[0001] Cross references to related applications [0002] The priority of the claims for this application is US Provisional Application Serial No. 60 / 475,558. technical field [0003] The present invention relates to hydrogen sensors, and in particular, to hydrogen sensors and switches utilizing metal nanowires. Background technique [0004] Like any fuel, hydrogen stores large amounts of energy, and handling it requires safety measures. As the use of hydrogen fuel becomes more widespread, the demand for reliable hydrogen sensors is also growing. Hydrogen is now used in the transportation, petrochemical, food processing, microchip and spacecraft industries. These industries each require reliable hydrogen sensors for many applications, for example, pinpointing leaks to prevent the possibility of explosions in production equipment, transport tanks, and storage tanks. Advances in fuel cell technology will provide numerous promising applications for hydrogen sensors. [0005]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/30
Inventor K·恩基G·蒙蒂Y·李Z·杨弗P·孙达拉坚
Owner NANO
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