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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/00216305:26620/19:PU133206

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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&apos; 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 &amp; Co. KGaA, Weinheim

Název v anglickém jazyce

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

Popis výsledku anglicky

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&apos; 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 &amp; Co. KGaA, Weinheim

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GA17-11456S" target="_blank" >GA17-11456S: Nanostruktury vrstevnatých dichalkogenidů přechodných kovů pro elektrokatalýzu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Small Methods

ISSN

2366-9608

e-ISSN

—

Svazek periodika

3

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

000496470400008

EID výsledku v databázi Scopus

2-s2.0-85074853967