Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
607203 | Journal of Colloid and Interface Science | 2014 | 6 Pages |
•Core–shell Au@RF nanospheres with multiple cores were obtained by a Stöber method.•Au@meso-SiO2 hollow nanospheres can be obtained by silica coating and calcination.•The Au@meso-SiO2 hollow nanospheres have high surface area and uniform pore size.•The Au@meso-SiO2 nanospheres exhibit great catalytic performance and stability.
The core–shell Au@resorcinol–formaldehyde (RF) nanospheres with multiple cores have been successfully synthesized by a modified Stöber method. After coating mesoporous silica and the calcination, the Au@meso-SiO2 hollow nanospheres with multiple gold cores can be obtained, which have a high surface area (∼537 m2/g) and uniform pore size (∼2.5 nm). The Au@meso-SiO2 hollow nanospheres can be used as a catalyst for the reduction of 4-nitrophenol by NaBH4 into 4-aminophenol, and exhibit excellent catalytic performance.
Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (167 K)Download as PowerPoint slide