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Photothermally Enhanced Plasmon‐Driven Catalysis on Fe 5 C 2 @Au Core–Shell Nanostructures
Author(s) -
Miao Peng,
Huang Wei,
Gao Mansha,
Chu Jiayu,
Song Bo,
Xu Ping
Publication year - 2018
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201701901
Subject(s) - photothermal therapy , plasmon , catalysis , nanostructure , materials science , nanotechnology , nanoparticle , raman spectroscopy , photothermal effect , photochemistry , surface plasmon , kinetics , chemical engineering , chemistry , optoelectronics , organic chemistry , optics , physics , engineering , quantum mechanics
Plasmon‐driven catalysis has attracted great attention in recent years, but the reaction efficiency remains to be improved. Photothermal Fe 5 C 2 @Au core–shell nanostructures are fabricated through a self‐assembly process of Fe 5 C 2 and Au nanoparticles (NPs) with the assistance of hexanethiol, which can be highly efficient surface enhanced Raman spectroscopy (SERS) platforms for the study of plasmon‐driven dimerization of 4‐aminothiophenol (4‐ATP) and 4‐nitrothiophenol (4‐NTP). As compared to bare Au NPs, much accelerated reaction kinetics can be achieved on the Fe 5 C 2 @Au core–shell nanostructures by quantitatively determining the Raman intensity of the ν (N=N) band in the generated 4,4′‐dimercaptobenzene (DMAB). The photothermal effect from the Fe 5 C 2 NPs may lower the energy barrier and generate more hot electrons for the plasmon‐driven catalysis. This photothermal route may open up new avenues for enhancing the reaction rate and broadening the research area of the plasmon‐driven catalysis.