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Layered alkali iridate, layered iridic acid, and iridium oxide nanosheet
US9689080B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9689080-B2 |
| Application number | US-201615261331-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 9, 2016 |
| Priority date | Mar 11, 2014 |
| Publication date | Jun 27, 2017 |
| Grant date | Jun 27, 2017 |
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Abstract
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Provided is a layered alkali iridate and a layered iridic acid to be used for producing iridium oxide nanosheets, and an iridium oxide nanosheet. A layered alkali iridate with composition of M x IrO y .nH 2 O (where M is a monovalent metal, x is 0.1 to 0.5, y is 1.5 to 2.5, and n is 0.5 to 1.5), wherein M x IrO y .nH 2 O has a layered structure. The M is potassium, and the layered alkali iridate has diffraction peaks at 2θ diffraction angles of 13.0° and 26.0°. A layered iridic acid with a composition of H x IrO y .nH 2 O (where x is 0.1 to 0.5, y is 1.5 to 2.5, and n is 0 to 1), wherein H x IrO y .nH 2 O has a layered structure. This layered iridic acid has diffraction peaks at 2θ diffraction angles of 12.3° and 24.6°. A single crystalline iridium oxide nanosheet having a thickness of 3 nm or less.
First claim
Opening claim text (preview).
What is claimed is: 1. An alkali iridate having a composition of M x IrO y .nH 2 O (where M is an alkali metal, x is 0.1 to 0.5, y is 1.5 to 2.5, and n is 0.5 to 1.5), wherein M x IrO y .nH 2 O has a layered structure. 2. The alkali iridate according to claim 1 , wherein the M is potassium and the layered alkali iridate has diffraction peaks at 2θ diffraction angles of 13.0° and 26.0°. 3. An iridic acid having a composition of H x IrO y .nH 2 O (where x is 0.1 to 0.5, y is 1.5 to 2.5, and n is 0 to 1), wherein H x IrO y .nH 2 O has a layered structure. 4. The iridic acid according to claim 3 having diffraction peaks at 2θ diffraction angles of 12.3° and 24.6°. 5. An iridium oxide nanosheet composed of single crystalline iridium oxide sheet with a nanosheet morphology having a thickness of 3 nm or less.
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Classifications
Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title
Chlorine; Compounds thereof (by simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine C25B1/34) · CPC title
obtained by SEM · CPC title
Washing {(B01J37/0009, B01J37/0018 take precedence)} · CPC title
Hydrogen or oxygen · CPC title
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- What does patent US9689080B2 cover?
- Provided is a layered alkali iridate and a layered iridic acid to be used for producing iridium oxide nanosheets, and an iridium oxide nanosheet. A layered alkali iridate with composition of M x IrO y .nH 2 O (where M is a monovalent metal, x is 0.1 to 0.5, y is 1.5 to 2.5, and n is 0.5 to 1.5), wherein M x IrO y .nH 2 O has a layered structure. The M is potassium, and the layered alkali iridat…
- Who is the assignee on this patent?
- Univ Shinshu
- What technology area does this patent fall under?
- Primary CPC classification C01G55/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 27 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).