Hematite films by aerosol pyrolysis: Influence of substrate and photocorrosion suppression by TiO2 capping

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43918606" target="_blank" >RIV/60461373:22310/19:43918606 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0920586118316870" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0920586118316870</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cattod.2019.01.033" target="_blank" >10.1016/j.cattod.2019.01.033</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hematite films by aerosol pyrolysis: Influence of substrate and photocorrosion suppression by TiO2 capping

Popis výsledku v původním jazyce

Sn-doped hematite (Fe2O3) films were prepared by aerosol pyrolysis (AP) on fluorine doped tin oxide (FTO), titanium and stainless steel. Photoactive electrodes were obtained in all cases and the photosensitivity had an onset around 650 nm. Maximum incident photon to electron conversion efficiency (IPCE) was 0.3 at 300 nm for samples deposited on FTO. The Faradaic efficiency of the photocorrosion reaction was found to be 0.47% for an unprotected FTO/hematite electrode in H2SO4. The Faradaic efficiency of this dissolution reaction decreased to 0.3% for a hematite electrode covered with a 65 nm thick dip coated layer of TiO2, and to 0.17% for a sample with a spray coated TiO2 layer, thus proving the beneficial role of TiO2 in protecting hematite against photocorrosion.

Název v anglickém jazyce

Hematite films by aerosol pyrolysis: Influence of substrate and photocorrosion suppression by TiO2 capping

Popis výsledku anglicky

Sn-doped hematite (Fe2O3) films were prepared by aerosol pyrolysis (AP) on fluorine doped tin oxide (FTO), titanium and stainless steel. Photoactive electrodes were obtained in all cases and the photosensitivity had an onset around 650 nm. Maximum incident photon to electron conversion efficiency (IPCE) was 0.3 at 300 nm for samples deposited on FTO. The Faradaic efficiency of the photocorrosion reaction was found to be 0.47% for an unprotected FTO/hematite electrode in H2SO4. The Faradaic efficiency of this dissolution reaction decreased to 0.3% for a hematite electrode covered with a 65 nm thick dip coated layer of TiO2, and to 0.17% for a sample with a spray coated TiO2 layer, thus proving the beneficial role of TiO2 in protecting hematite against photocorrosion.

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/GA17-20008S" 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

2019

Kód důvěrnosti údajů

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

Název periodika

Catalysis Today

ISSN

0920-5861

e-ISSN

—

Svazek periodika

335

Číslo periodika v rámci svazku

1 September 2019

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

418-422

Kód UT WoS článku

000475744800051

EID výsledku v databázi Scopus

2-s2.0-85060293368