Magnetic gas sensors
US-9097677-B1 · Aug 4, 2015 · US
Hydrogen sensing device
US10753917B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10753917-B2 |
| Application number | US-201815977629-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 11, 2018 |
| Priority date | May 12, 2017 |
| Publication date | Aug 25, 2020 |
| Grant date | Aug 25, 2020 |
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- Title
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Abstract
Official abstract text for this publication.
A hydrogen sensing device includes a multi-layered structure member. The multi-layered structure member includes a stack of alternatingly disposed magnetic layers and non-ferromagnetic layers. One of the magnetic layers is a topmost layer of the multi-layered structure member. The topmost layer includes a palladium-based material to detect hydrogen.
First claim
Opening claim text (preview).
What is claimed is: 1. A hydrogen sensing device, comprising: a multi-layered structure member including a stack, of alternatingly disposed magnetic layers and non-ferromagnetic layers, wherein one of said magnetic layers is a topmost layer of said multi-layered structure member; and wherein said topmost layer includes a palladium-based material to detect hydrogen; and wherein the palladium-based material includes a palladium-based alloy that includes 50% to 95% of palladium and a balance of cobalt. 2. The hydrogen sensing device of claim 1 , wherein each of said magnetic layers includes the palladium-based material. 3. The hydrogen sensing device of claim 1 , wherein said non-ferromagnetic layers include a non-ferromagnetic material selected from the group consisting of copper (Cu), silver (Ag), gold (Au), chromium (Cr), aluminum (Al), tantalum (Ta) and alloys thereof. 4. The hydrogen sensing device of claim 3 , wherein the non-ferromagnetic material includes Cu. 5. The hydrogen sensing device of claim 1 , wherein each of said magnetic layers and said non-ferromagnetic layers has a thickness ranging from 0.5 nm to 5 nm. 6. The hydrogen sensing device of claim 1 , wherein a total number of said magnetic layers and said non-ferromagnetic layers ranges from 3 to 50. 7. The hydrogen sensing device of claim 1 , further comprising a substrate that is connected to a bottom surface of said multi-layered structure member opposite to said topmost layer. 8. The hydrogen sensing device of claim 7 , further comprising a seed layer formed between said substrate and said bottom surface of said multi-layered structure member. 9. The hydrogen sensing device of claim 8 , wherein said seed layer includes iron.
Assignees
Inventors
Classifications
using chemical indicators (G01N31/02 takes precedence) · CPC title
of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid {, for detecting components in the fluid} · CPC title
- G01N33/005Primary
H2 · CPC title
Avoiding interference of a gas with the gas to be measured · CPC title
Metals · CPC title
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- What does patent US10753917B2 cover?
- A hydrogen sensing device includes a multi-layered structure member. The multi-layered structure member includes a stack of alternatingly disposed magnetic layers and non-ferromagnetic layers. One of the magnetic layers is a topmost layer of the multi-layered structure member. The topmost layer includes a palladium-based material to detect hydrogen.
- Who is the assignee on this patent?
- Univ National Chiao Tung
- What technology area does this patent fall under?
- Primary CPC classification G01N33/005. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 25 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).