Chen Junchen, Xue Zhaoteng, Feng Shanshan, Tu Bo, Zhao Dongyuan
Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, PR China.
Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, PR China.
J Colloid Interface Sci. 2014 Sep 1;429:62-7. doi: 10.1016/j.jcis.2014.05.005. Epub 2014 May 17.
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 m(2)/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.
通过改进的斯托伯方法成功合成了具有多个核的核壳结构金@间苯二酚-甲醛（RF）纳米球。在包覆介孔二氧化硅并煅烧后，可得到具有多个金核的金@介孔二氧化硅空心纳米球，其具有高比表面积（约537 m²/g）和均匀的孔径（约2.5 nm）。金@介孔二氧化硅空心纳米球可用作将4-硝基苯酚通过硼氢化钠还原为4-氨基苯酚的催化剂，并表现出优异的催化性能。
