METHOD AND Pd/V2 O5 DEVICE FOR H2 DETECTION
First Claim
1. A method of preparing an improved sensor for chemochromic detection of hydrogen gas over a wide response range, that exhibits stability during repeated coloring/bleaching cycles upon exposure and removal of hydrogen gas, comprising:
- providing a substrate;
depositing a V205 layer that functions as a H2 insertion host in a Pd/V205 hydrogen sensor to be formed on said substrate; and
,depositing a Pd layer onto said V205 layer;
said Pd layer functioning as an optical modulator.
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Abstract
Methods and Pd/V2O5 devices for hydrogen detection are disclosed. An exemplary method of preparing an improved sensor for chemochromic detection of hydrogen gas over a wide response range exhibits stability during repeated coloring/bleaching cycles upon exposure and removal of hydrogen gas. The method may include providing a substrate. The method may also include depositing a V205 layer that functions as a H2 insertion host in a Pd/V205 hydrogen sensor to be formed on said substrate. The method may also include depositing a Pd layer onto said V205 layer; said Pd layer functioning as an optical modulator.
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5 Claims
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1. A method of preparing an improved sensor for chemochromic detection of hydrogen gas over a wide response range, that exhibits stability during repeated coloring/bleaching cycles upon exposure and removal of hydrogen gas, comprising:
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providing a substrate; depositing a V205 layer that functions as a H2 insertion host in a Pd/V205 hydrogen sensor to be formed on said substrate; and
,depositing a Pd layer onto said V205 layer;
said Pd layer functioning as an optical modulator.
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2. An improved method of chemochromic detection of hydrogen gas over a wide range that exhibits stability during repeated coloring/bleaching cycles upon exposure and removal of hydrogen gas, comprising:
subjecting a sensor structure comprising a substrate, a layer of V205 coated on said substrate, and a layer of palladium (Pd) coated on said layer of V205 to an environment comprising hydrogen to cause a reaction governed by the equation; - View Dependent Claims (5)
- 3. The method of detection of claim 3 wherein the Pd/V205 structure is not saturated a 2% H2 or higher.
Specification