Process for preparing catalysts
US-9221034-B2 · Dec 29, 2015 · US
Metal oxide mesocrystal, and method for producing same
US9873108B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9873108-B2 |
| Application number | US-201314765283-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 2, 2013 |
| Priority date | Jan 31, 2013 |
| Publication date | Jan 23, 2018 |
| Grant date | Jan 23, 2018 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Various metal oxide mesocrystals can be synthesized in a simple manner by a method for producing a metal oxide mesocrystal, the method comprising the step of annealing an aqueous precursor solution comprising one or more metal oxide precursors, an ammonium salt, a surfactant, and water at 300 to 600° C. Composite mesocrystals consisting of a plurality of metal oxides or an alloy oxide can also be provided.
First claim
Opening claim text (preview).
We claim: 1. A method for producing a metal oxide mesocrystal, the method comprising the step of maintaining an aqueous precursor solution comprising one or more metal oxide precursors, an ammonium salt, a surfactant, and water at 300 to 600° C. 2. The method according to claim 1 , wherein the one or more metal oxide precursors are a metal nitrate and/or a metal fluoride salt. 3. The method according to claim 1 , wherein the ammonium salt is NH 4 NO 3 . 4. The method according to claim 1 , wherein the surfactant is at least one member selected from the group consisting of anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants. 5. The method according to claim 1 , wherein, in the aqueous precursor solution, the molar ratio of metal oxide precursor to surfactant is 1 to 1000:1, and the molar ratio of ammonium salt to surfactant is 1 to 1000:1.
Assignees
Inventors
Classifications
Nanoparticles · CPC title
Scanning electron microscopy; Transmission electron microscopy · CPC title
Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties · CPC title
X-ray diffraction · CPC title
characterised by their crystalline properties, e.g. semi-crystalline (catalysts comprising carbon B01J21/18; molecular sieves B01J29/00) · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9873108B2 cover?
- Various metal oxide mesocrystals can be synthesized in a simple manner by a method for producing a metal oxide mesocrystal, the method comprising the step of annealing an aqueous precursor solution comprising one or more metal oxide precursors, an ammonium salt, a surfactant, and water at 300 to 600° C. Composite mesocrystals consisting of a plurality of metal oxides or an alloy oxide can also …
- Who is the assignee on this patent?
- Japan Science & Tech Agency
- What technology area does this patent fall under?
- Primary CPC classification B01J23/80. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 23 2018 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).