Universal and facile sol-gel approach for fabrication of multitudinous yolk-shell architectures
- Resource Type
- Original Paper
- Authors
- Li, Hongqing; Xu, Wenqi; Xu, Jiaqi; Zhu, Mengxuan; Wang, Rui; Jiang, Heng; Jin, Changzi
- Source
- Journal of Sol-Gel Science and Technology. 109(2):421-432
- Subject
- Yolk-shell architecture
Sol-gel
Resorcinol-formaldehyde resin
Template
Catalysis
- Language
- English
- ISSN
- 0928-0707
1573-4846
The nanoreactors with yolk-shell configuration have been one of the most attractive objects because of their unique performance in specific reactions. However, complicated synthesis procedures have restricted the truth understanding and wide application of the yolk-shell architectures. This article presents a universal and facile sol-gel process for fabrication of mesoporous silica hollow structure and derived yolk-shell composites with extended Stöber resorcinol-formaldehyde resin as sacrificed template. The crucial influence factors for the morphology of products are investigated. A series of yolk-shell composites with multitudinous components have been successfully designed and are further catalytic tested by different reactions. This work has provided a universal avenue for the fabrication of yolk-shell nanoreactors to suit specific reaction needs.Graphical Abstract:
Highlights: The resorcinol-formaldehyde resin is an effective template to construct hollow mesoporous silica.Suitable surfactant ligand and solvent composition are crucial.Universal yolk-shell architecture can be fabricated by this facile approach.