Tailoring Metal/TiO2 Interface to Influence Motion of Light-Activated Janus Micromotors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F20%3A43920466" target="_blank" >RIV/60461373:22310/20:43920466 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26620/20:PU136407
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.201908614" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.201908614</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/adfm.201908614" target="_blank" >10.1002/adfm.201908614</a>
Alternative languages
Result language
angličtina
Original language name
Tailoring Metal/TiO2 Interface to Influence Motion of Light-Activated Janus Micromotors
Original language description
Catalytic light-powered micromotors have become a major focus in current autonomous self-propelled micromotors research. The attractiveness of such machines stems from the fact that these motors are “fuel-free,” with their motion modulated by light irradiation. In order to study how different metals affect the velocities of metal/TiO2 micromachines in the presence of UV irradiation in pure water, Pt/TiO2, Cu/TiO2, Fe/TiO2, Ag/TiO2, and Au/TiO2 Janus micromotors are prepared. The metals have different chemical potentials and catalytic effects toward water splitting reaction, with both the effects expected to alter the photoelectrochemically-induced reaction and propulsion rates. Analysis of structures, elemental compositions, motion patterns, velocities, and overall performances of different metals (Pt, Au, Ag, Fe, Cu) on TiO2 are observed by scanning electron microscopy, energy dispersive X-ray spectroscopy, and optical microscopy. Electrochemical Tafel analysis is performed for the different metal/TiO2 structures and it is concluded that the effective velocity is a result of the synergistic effect of chemical potential and catalysis. It is found that the Pt/TiO2 Janus micromotors exhibit the fastest motion compared to the rest of the prepared materials. Furthermore, after exposure to UV light, every fabricated micromotor shows high possibility of forming assembled chains which influence their velocity. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry
Result continuities
Project
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Continuities
O - Projekt operacniho programu
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced Functional Materials
ISSN
1616-301X
e-ISSN
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Volume of the periodical
30
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
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UT code for WoS article
000506092100001
EID of the result in the Scopus database
2-s2.0-85077841801