【Applied Surface Science】Controllable synthesis of silver anchored N-doped yolk-shell carbon@mSiO2 spheres and their application for the catalytic reduction of 4-nitrophenol
writer：ShijunLiu, YanlongQi, LongCui, QuanquanDai, ShangjingZeng, ChenxiBai
keywords：1
source：期刊
Issue time：2019年
In this paper, we focus on a facile, economical synthesis stratigies for yolk-shell materials with tunable morphology, which have attracted fantastic attention in practical application and scientific research. The key point is that the monodisperse polymer spheres used as carbon source need conducting pretreatment in n-hexane solution. The modified 3-AFR spheres are coated by mesoporous silica and then carbonized in inert atmosphere, obtaining yolk-shell carbon-silica composites. Particularly, the obtained matarial supporting well disperse silver particles exhibits excellent catalytic activity for p-nitrophenol (4-NP) reduction reaction under room temperature with convension of >98%, which may be attributed to well dispersed Ag nanopaticles and meso porosity of shell. This strategy may provide a platform for enhanced catalysts with yolk-shell materials.