Szczegóły publikacji
Opis bibliograficzny
Method for producing nanometric gold (III) oxide particles / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie ; wynalazca: LUTY-BŁOCHO Magdalena, SZOT Aleksandra, RUTKOWSKI Bogdan. — Int.Cl.: B01J 23/52(2006.01). — European Patent Office. — Opis zgłoszeniowy wynalazku ; EP4420775A1 ; Opubl. 2024-08-28. — Zgłosz. nr EP23163169A z dn. 2023-03-21
Autorzy (3)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 155470 |
|---|---|
| Data dodania do BaDAP | 2024-09-23 |
| Tekst źródłowy | URL |
| Rok publikacji | 2024 |
| Typ publikacji | zgłoszenie patentowe |
| Otwarty dostęp |  |
Abstract
A method for producing nanometric gold (III) oxide particles is characterized in that 5-95 ml of an aqueous solution of L-ascorbic acid or D-ascorbic acid or L,D-ascorbic acid having a concentration of 2.0 ·10-4 - 9.0 ·10-3 mol/dm3 is added to 5-95 ml of HAuCl4 solution having a concentration of 1.0·10-4- 3.0·10-3 mol/dm3 and a temperature in the range of 10-100°C, and is stirred at 100-700 rpm for 10-60 minutes, and a temperature is maintained at 80-100°C, after which the resulting colloidal solution is cooled down to room temperature. Preferably, a steric particle stabilizer in the form of polyvinyl alcohol or polyvinyl pyrrolidone, in an amount of up to 5 g per 100 ml of solution, and optionally, chlorate salt in the form of NaClO4 or KClO4 in an amount of up to 0.1 g per 100 ml of solution, is added to the cooled colloidal solution and then is stirred until the stabilizer is completely dissolved.
