The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 2026
Filed:
Mar. 22, 2023
Kunming University of Science and Technology, Kunming, CN;
Kunming University of Science and Technology Kunming, Kunming, CN;
Abstract
The present disclosure provides a preparation method of nano-aluminum oxide (nano-AlO) with a controllable hydroxyl content, belonging to the technical field of nano-alumina. HOdissolved in water dissociates a large number of hydroxyl radicals. In the present disclosure, a resulting HOsolution is used as a solvent for precipitation; during the precipitation, a soluble aluminum salt and a pore-enlarging agent are reacted to generate a precipitate under alkaline conditions, and the hydroxyl radicals are distributed on a surface of the precipitate. During drying, the hydroxyl radicals are converted into bound water and distributed on a surface and in pores of an aluminum hydroxide precursor; during roasting, the bound water is destroyed to form hydroxyl. The hydroxyl content of the nano-AlOcan be regulated by controlling a concentration of the HOsolution, and the nano-AlOhas the hydroxyl content positively correlated with the concentration of the HOsolution.