CeO2‐Encapsulated Hollow Ag–Au Nanocage Hybrid Nanostructures as High‐Performance Catalysts for Cascade Reactions. Issue 43 (6th September 2019)

• Record Type: Journal Article
• Authors: Zhang, Lingling; Pan, Jing; Long, Yan; Li, Jian; Li, Wei; Song, Shuyan; Shi, Zhan; Zhang, Hongjie
• Is Part Of: Small. Volume 15:Issue 43(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-09-06
• Subjects: cascade reactions -- core–shell nanostructures -- glucose oxidase‐like activity -- peroxidase‐like activity; Nanotechnology -- Periodicals; Nanoparticles -- Periodicals; Microtechnology -- Periodicals; 620.5
• DOI: 10.1002/smll.201903182
• Languages: English
• ISSNs: 1613-6810

Abstract

Abstract: Inspired by bio‐enzymes, multistep cascade reactions are highly attractive in catalysis. Despite extensive research in recent years, it remains a challenge to promote the stability and activity of catalysts. Here, well‐defined core–shell structured Ag–Au nanocage@CeO2 (Ag–Au NC@CeO2 ) are designed by a simple and facile self‐assembly method. The results indicate that the Ag–Au NC@CeO2 has glucose oxidase‐like activity and intrinsic peroxidase‐like activity at the same time. As expected, Ag–Au NC@CeO2 hybrid nanomaterials exhibit cascade reactions activity. Moreover, the hybrid materials are promising to detect glucose without bio‐enzymes. This research has potential applications in biomedicine and biomimetic catalysis. Abstract : High‐quality Ag–Au NC@CeO2 core –shell nanostructures are successfully prepared by a fast and facile self‐assembly method. They are proved to have activity in glucose oxidation cascade reactions. By using a concentration versus absorbance regression equation, the one‐pot detection of glucose without bio‐enzymes is possible, which has a profound impact in biomedicine and development of biomimetic catalysts.