Active Nanointerface-Assisted Co-Assembly to Yolk-Shell Au@Ordered Mesoporous Carbon Nanospheres

Assembling of well-orientated mesopores and 0D substance into an orchestrate architecture for constructing advanced carbon-based composites is highly attractive. Currently, this nanofabrication method is facing challenges, because of the difficulty in the co-assembly of the building blocks is very hard to perform onto a high-curvature and heterogeneous 0D substrate. Here, an efficient active nanointerface-assisted co-assembly approach for design and fabrication of a novel class of yolk-shell Au@ordered mesoporous carbon nanosphere is reported. The key point to this preparation strategy is construction of reactive aldehyde functional groups on the surface of Au@SiO2 nanospheres, which can react with the carbon source to in situ form a stable covalent bond at their nanointerface. The as-synthesized yolk-shell Au@ordered mesoporous carbon nanosphere not only exhibits uniform spherical morphology and robust porosity but also possesses a totally new ordered mesoporous and fast permeable shell structure, providing a chance for greatly broadening their application scope.