Grätzel-Type TiO2 Anatase Layers as Host for Pt Single Atoms: Highly Efficient and Stable Photocatalytic Hydrogen Production

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F24%3A73624533" target="_blank" >RIV/61989592:15640/24:73624533 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1002/aenm.202302998" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/aenm.202302998</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/aenm.202302998" target="_blank" >10.1002/aenm.202302998</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Grätzel-Type TiO2 Anatase Layers as Host for Pt Single Atoms: Highly Efficient and Stable Photocatalytic Hydrogen Production

Popis výsledku v původním jazyce

Single atoms (SAs) represent not only a new frontier in classic heterogeneous catalysis but are also increasingly investigated as co-catalysts in photocatalytic reactions. In contrast to classic catalysis, many photocatalytic platforms require only a very low SA loading density to reach a saturated photocatalytic activity. As a result, an optimized light harvesting/carrier transport combination in the supporting semiconductor becomes the key aspect for the overall photocatalytic efficiency. In this work, it is demonstrated that Gratzel type mesoporous TiO2 layers represent an ideal host for Pt single-atoms (SAs) that allow for a highly effective photocatalytic H-2 generation. Using a layer with an optimized geometry, structure, as well as Pt SA loading, a photocatalytic H-2 production is achieved of up to approximate to 2900 mu L h(-1) (under irradiation at lambda = 365 nm and I = 65 mW cm(-2)) - a performance that is far superior to previous Pt SA/TiO2 structures based on TiO2 nanotubes, nanosheets, or metal organic frameworks. Moreover, such SA/substrate combination provides a highly stable H-2 production over time. The present work thus introduces the use of this classic TiO(2 )nanostructure as the most effective host for Pt SAs and its use for highly efficient photocatalytic H-2 production from aqueous solutions.

Název v anglickém jazyce

Grätzel-Type TiO2 Anatase Layers as Host for Pt Single Atoms: Highly Efficient and Stable Photocatalytic Hydrogen Production

Popis výsledku anglicky

Single atoms (SAs) represent not only a new frontier in classic heterogeneous catalysis but are also increasingly investigated as co-catalysts in photocatalytic reactions. In contrast to classic catalysis, many photocatalytic platforms require only a very low SA loading density to reach a saturated photocatalytic activity. As a result, an optimized light harvesting/carrier transport combination in the supporting semiconductor becomes the key aspect for the overall photocatalytic efficiency. In this work, it is demonstrated that Gratzel type mesoporous TiO2 layers represent an ideal host for Pt single-atoms (SAs) that allow for a highly effective photocatalytic H-2 generation. Using a layer with an optimized geometry, structure, as well as Pt SA loading, a photocatalytic H-2 production is achieved of up to approximate to 2900 mu L h(-1) (under irradiation at lambda = 365 nm and I = 65 mW cm(-2)) - a performance that is far superior to previous Pt SA/TiO2 structures based on TiO2 nanotubes, nanosheets, or metal organic frameworks. Moreover, such SA/substrate combination provides a highly stable H-2 production over time. The present work thus introduces the use of this classic TiO(2 )nanostructure as the most effective host for Pt SAs and its use for highly efficient photocatalytic H-2 production from aqueous solutions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/EF15_003%2F0000416" target="_blank" >EF15_003/0000416: Pokročilé hybridní nanostruktury pro aplikaci v obnovitelných zdrojích energie</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Advanced Energy Materials

ISSN

1614-6832

e-ISSN

1614-6840

Svazek periodika

14

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

—

Kód UT WoS článku

001120147500001

EID výsledku v databázi Scopus

2-s2.0-85178022575