硅酸盐通报2026，Vol.45Issue(2)：625-633,9.DOI:10.16552/j.cnki.issn1001-1625.2025.0870
水解法制备二氧化硅包裹氧化亚铜及其抗氧化性能研究
Preparation of SiO2-Coated Cu2O via Hydrolysis Method and Study on Its Oxidation Resistance
摘要
Abstract
This study successfully prepared the SiO2 coated Cu2O samples(Cu2O@SiO2)with a core-shell structure via a hydrolysis method,using Cu2O as the core material and tetraethyl orthosilicate(TEOS)as the silicon source.The microstructure and oxidation resistance of the samples were systematically characterized by X-ray diffraction(XRD),transmission electron microscopy(TEM),energy dispersive spectroscopy(EDS),Fourier transform infrared spectroscopy(FT-IR),and simultaneous DSC-TG analysis.The results indicate that the Cu2O@SiO2 prepared under the conditions of a reaction temperature of 45℃,NH3·H2O concentration of 3.96%(mass fraction),and TEOS concentration of 3.84%(mass fraction)retained Cu2O as the primary crystalline phase even after heat treatment at 380℃in an oxidizing atmosphere.Compared to uncoated pure Cu2O,the initial oxidation temperature of the Cu2O@SiO2 increases from 230℃to 385℃,representing an improvement of 155℃.关键词
Cu2O/SiO2/包裹/核壳结构/抗氧化性能Key words
Cu2O/SiO2/coating/core-shell structure/oxidation resistance分类
通用工业技术引用本文复制引用
杨月,苗立锋,江新民,廖羚辰,包镇红..水解法制备二氧化硅包裹氧化亚铜及其抗氧化性能研究[J].硅酸盐通报,2026,45(2):625-633,9.基金项目
江西省重点研发揭榜挂帅项目(20224BBE51050) （20224BBE51050）
国家自然科学基金(52262008) （52262008）
景德镇市科技项目(20224GY008-15) （20224GY008-15）
