Light-Driven Sandwich ZnO/TiO2/Pt Janus Micromotors: Schottky Barrier Suppression by Addition of TiO2 Atomic Interface Layers into ZnO/Pt Micromachines Leading to Enhanced Fuel-Free Propulsion

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43918149" target="_blank" >RIV/60461373:22310/19:43918149 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26620/19:PU133206
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/smtd.201900258" target="_blank" >https://onlinelibrary.wiley.com/doi/abs/10.1002/smtd.201900258</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/smtd.201900258" target="_blank" >10.1002/smtd.201900258</a>

Result language
angličtina
Original language name
Light-Driven Sandwich ZnO/TiO2/Pt Janus Micromotors: Schottky Barrier Suppression by Addition of TiO2 Atomic Interface Layers into ZnO/Pt Micromachines Leading to Enhanced Fuel-Free Propulsion
Original language description
Conventional binary light-driven micromotors, based on semiconducting photocatalysts and metal junctions, have mostly shown limited speed and charge separation/transport due to their not well-designed interfaces. Here ZnO/Pt Janus micromotors with atomically smooth interfaces are introduced, which show fast light-driven and fuel-free propulsion (15 body-length s−1). Furthermore, the speed of ZnO/Pt micromotors is increased by ≈60% with a few atomic amorphous TiO2 photocatalyst interlayers. The new photocatalysts' interfaces, i.e., ZnO/TiO2, provide type II heterojunctions, leading to an increase in the number of electron/hole pairs and then improving the electron transfer to Pt metal. This effective charge separation/transfer results in a faster electrophoretic motion of the novel ternary ZnO/TiO2/Pt micromotors. The concept of the type II heterojunction, which is well known in photocatalysis communities, is used in light-driven micromotors as a new approach and paves the way for the next-generation of faster fuel-free “green” micromotors. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Czech name
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Czech description
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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

Project
<a href="/en/project/GA17-11456S" target="_blank" >GA17-11456S: Layered transition metal dichalcogenides nanostructures for electrocatalysis</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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