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Catalysis‐Driven Self‐Thermophoresis of Janus Plasmonic Nanomotors
Author(s) -
Qin Weiwei,
Peng Tianhuan,
Gao Yanjing,
Wang Fei,
Hu Xiaocai,
Wang Kun,
Shi Jiye,
Li Di,
Ren Jicun,
Fan Chunhai
Publication year - 2017
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201609121
Subject(s) - thermophoresis , janus , catalysis , plasmon , microscale thermophoresis , janus particles , nanotechnology , temperature gradient , chemical physics , nanoparticle , chemistry , materials science , chemical engineering , organic chemistry , optoelectronics , physics , nanofluid , biochemistry , quantum mechanics , engineering
It is highly demanding to design active nanomotors that can move in response to specific signals with controllable rate and direction. A catalysis‐driven nanomotor was constructed by designing catalytically and plasmonically active Janus gold nanoparticles (Au NPs), which generate an asymmetric temperature gradient of local solvent surrounding NPs in catalytic reactions. The self‐thermophoresis behavior of the Janus nanomotor is monitored from its inherent plasmonic response. The diffusion coefficient of the self‐thermophoresis motion is linearly dependent on chemical reaction rate, as described by a stochastic model.