Bi2O3 dodecahedron cage material assembled by amorphous nanodots and preparation method of Bi2O3 dodecahedron cage material
The invention provides a Bi2O3 dodecahedron cage material assembled by amorphous nanodots and a preparation method of the Bi2O3 dodecahedron cage material. The material is of a hollow dodecahedron cage structure with a high surface exposure ratio, which is formed by assembling bismuth oxide amorphous nanodots with the size of about 10nm. The preparation method comprises the following steps: successively dissolving a certain amount of bismuth nitrate and potassium ferricyanide in an aqueous solution to form a clear solution, dropwise adding a certain amount of nitric acid into the solution while stirring, standing and reacting for a period of time at room temperature, and after the reaction is finished, centrifugally separating and drying to obtain a precursor material; dispersing a certain amount of the precursor material in a KOH aqueous solution with a certain concentration, and performing centrifugal separation and drying after the reaction is finished; the material has a great surface atom exposure ratio, a high-activity nanodot assembly unit, a rapid conductive edge and a porous structure for accelerating substance diffusion, and is novel in structure, low in cost, green, environment-friendly and wide in application prospect; the preparation method is green, mild, simple and easy to control, does not need a surfactant, and is high in production efficiency..
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Patent| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Europäisches Patentamt - (2023) vom: 28. Apr. Zur Gesamtaufnahme - year:2023 |
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| Sprache: |
Englisch |
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| Beteiligte Personen: |
WU QINGSHENG [VerfasserIn] |
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| Links: |
Volltext [kostenfrei] |
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| Anmerkungen: |
Source: www.epo.org (no modifications made), First posted: 2023-04-28, Last update posted on www.tib.eu: 2023-09-26, Last updated: 2023-09-29 |
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| Patentnummer: |
CN116022844 |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
EPA002194414 |
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| 245 | 1 | 0 | |a Bi2O3 dodecahedron cage material assembled by amorphous nanodots and preparation method of Bi2O3 dodecahedron cage material |
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| 520 | |a The invention provides a Bi2O3 dodecahedron cage material assembled by amorphous nanodots and a preparation method of the Bi2O3 dodecahedron cage material. The material is of a hollow dodecahedron cage structure with a high surface exposure ratio, which is formed by assembling bismuth oxide amorphous nanodots with the size of about 10nm. The preparation method comprises the following steps: successively dissolving a certain amount of bismuth nitrate and potassium ferricyanide in an aqueous solution to form a clear solution, dropwise adding a certain amount of nitric acid into the solution while stirring, standing and reacting for a period of time at room temperature, and after the reaction is finished, centrifugally separating and drying to obtain a precursor material; dispersing a certain amount of the precursor material in a KOH aqueous solution with a certain concentration, and performing centrifugal separation and drying after the reaction is finished; the material has a great surface atom exposure ratio, a high-activity nanodot assembly unit, a rapid conductive edge and a porous structure for accelerating substance diffusion, and is novel in structure, low in cost, green, environment-friendly and wide in application prospect; the preparation method is green, mild, simple and easy to control, does not need a surfactant, and is high in production efficiency. | ||
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| 650 | 4 | |a B82Y: Specific uses or applications of nanostructures; measurement or analysis of nanostructures; manufacture or treatment of nanostructures | |
| 650 | 4 | |a C01G: Compounds containing metals not covered by subclasses c01d or c01f (metal hydrides c01b0006000000; salts of oxyacids of halogens c01b0011000000; peroxides, salts of peroxyacids c01b0015000000; thiosulfates, dithionites, polythionates c01b0017640000; compounds containing selenium or tellurium c01b0019000000; binary compounds of nitrogen with metals c01b0021060000; azides c01b0021080000; metal amides c01b0021092000; nitrites c01b0021500000; phosphides c01b0025080000; salts of oxyacids of phosphorus c01b0025160000; carbides c01b0032900000; compounds containing silicon c01b0033000000; compounds containing boron c01b0035000000; compounds having molecular sieve properties but not having base-exchange properties c01b0037000000; compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites, c01b0039000000; cyanides c01c0003080000; salts of cyanic acid c01c0003140000; salts of cyanamide c01c0003160000; thiocyanates c01c0003200000; fermentation or enzyme-using processes for the preparation of elements or inorganic compounds except carbon dioxide c12p0003000000; obtaining metal compounds from mixtures, e.g. ores, which are intermediate compounds in a metallurgical process for obtaining a free metal c21b, c22b; production of non-metallic elements or inorganic compounds by electrolysis or electrophoresis c25b) | |
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