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Plasmonic Nanorattles as Next‐Generation Catalysts for Surface Plasmon Resonance‐Mediated Oxidations Promoted by Activated Oxygen
Author(s) -
da Silva Anderson G. M.,
Rodrigues Thenner S.,
Correia Valquírio G.,
Alves Tiago V.,
Alves Rafael S.,
Ando Rômulo A.,
Ornellas Fernando R.,
Wang Jiale,
Andrade Leandro H.,
Camargo Pedro H. C.
Publication year - 2016
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201601740
Subject(s) - nanoshell , surface plasmon resonance , plasmon , catalysis , materials science , nanoparticle , electric field , nanostructure , nanotechnology , photocatalysis , visible spectrum , aniline , photochemistry , optoelectronics , chemistry , organic chemistry , physics , quantum mechanics
Nanorattles, comprised of a nanosphere inside a nanoshell, were employed as the next generation of plasmonic catalysts for oxidations promoted by activated O 2 . After investigating how the presence of a nanosphere inside a nanoshell affected the electric‐field enhancements in the nanorattle relative to a nanoshell and a nanosphere, the SPR‐mediated oxidation of p ‐aminothiophenol (PATP) functionalized at their surface was investigated to benchmark how these different electric‐field intensities affected the performances of Au@AgAu nanorattles, AgAu nanoshells and Au nanoparticles having similar sizes. The high performance of the nanorattles enabled the visible‐light driven synthesis of azobenzene from aniline under ambient conditions. As the nanorattles allow the formation of electromagnetic hot spots without relying on the uncontrolled aggregation of nanostructures, it enables their application as catalysts in liquid phase under mild conditions using visible light as the main energy input.