WO3 photoanodes prepared by spray pyrolysis for photo-electrochemical water splitting

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43915153" target="_blank" >RIV/60461373:22310/17:43915153 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.icct.cz/AngiologyKlon-ICCT/media/system/ICCT2017-full_papers.pdf" target="_blank" >http://www.icct.cz/AngiologyKlon-ICCT/media/system/ICCT2017-full_papers.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

WO3 photoanodes prepared by spray pyrolysis for photo-electrochemical water splitting

Popis výsledku v původním jazyce

The present work deals with the fabrication of WO3 films by spray-pyrolysis, their characterization by XRD and SEM and evaluation of photoelectrochemical properties. Spray pyrolysis was done by semi-automatic spray device consisting of a compressed air fed spray nozzle. Gravity fed liquid precursors, namely i) Acetylated peroxotungstic acid (AcPTA), ii) Ammonium paratungstate (APT) and iii) Ammonium metatungtate (AMT), were sprayed on heated FTO glass substrate. Various deposited amount (layer thickness) of WO3 on FTO has been achieved by the repetition of spraying cycles (SC). Spray-pyrolysis of AcPTA produces homogeneous WO3 layers with high photocurrents. However, with increasing amount of deposited WO3, adhesion decreases and part of the layer may even peel off. Spray-pyrolysis of APT produces layers with very good mechanical properties but lower photocurrents in comparison with AcPTA layers. WO3 fabricated from AMT exhibit very promising photocurrents which increase with number of SC and will be further optimised in future work.

Název v anglickém jazyce

WO3 photoanodes prepared by spray pyrolysis for photo-electrochemical water splitting

Popis výsledku anglicky

The present work deals with the fabrication of WO3 films by spray-pyrolysis, their characterization by XRD and SEM and evaluation of photoelectrochemical properties. Spray pyrolysis was done by semi-automatic spray device consisting of a compressed air fed spray nozzle. Gravity fed liquid precursors, namely i) Acetylated peroxotungstic acid (AcPTA), ii) Ammonium paratungstate (APT) and iii) Ammonium metatungtate (AMT), were sprayed on heated FTO glass substrate. Various deposited amount (layer thickness) of WO3 on FTO has been achieved by the repetition of spraying cycles (SC). Spray-pyrolysis of AcPTA produces homogeneous WO3 layers with high photocurrents. However, with increasing amount of deposited WO3, adhesion decreases and part of the layer may even peel off. Spray-pyrolysis of APT produces layers with very good mechanical properties but lower photocurrents in comparison with AcPTA layers. WO3 fabricated from AMT exhibit very promising photocurrents which increase with number of SC and will be further optimised in future work.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

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

Projekt

<a href="/cs/project/GA17-20008S" target="_blank" >GA17-20008S: Nové fotokatodové a photoanodové materiály pro solární rozklad vody</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 5th International Conference on Chemical Technology

ISBN

978-80-86238-65-4

ISSN

2336-811X

e-ISSN

2336-8128

Počet stran výsledku

5

Strana od-do

220-224

Název nakladatele

Česká společnost průmyslové chemie (ČSPCH)

Místo vydání

Praha

Místo konání akce

Mikulov

Datum konání akce

10. 4. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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