Nanostructured boron doped diamond enhancing the photoelectrochemical performance of TiO2/BDD heterojunction anodes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F20%3APU133646" target="_blank" >RIV/00216305:26620/20:PU133646 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0042207X18324618" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0042207X18324618</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.vacuum.2019.109006" target="_blank" >10.1016/j.vacuum.2019.109006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nanostructured boron doped diamond enhancing the photoelectrochemical performance of TiO2/BDD heterojunction anodes

Popis výsledku v původním jazyce

Photoelectrochemical (PEC) water splitting provides a promising way for development of sustainable methods of hydrogen generation and water treatment without chemicals. In this paper we report on the development of a unique PEC electrode consisting of nanostructured p-type boron doped diamond (BDD) layers covered by n-type TiO2 thin film. The influence of nanostructuring and boron doping level, as well as the thickness of TiO2 film on PEC properties was investigated. As-grown and plasma-nanostructured BDD thin films with two doping levels (B/C = 1 000 ppm and 10 000 ppm in gas phase) were utilized as substrates for deposition of 20, 100 and 500 nm TiO2 layers using RF magnetron sputtering. The highest photocurrent (60 μ A/cm2 and 3.2 mA/cm2 at 0 and 2 V vs Ag/AgCl respectively) was obtained in case of structured BDD electrode with B/C ratio in gas phase 1 000 ppm, covered by a 500 nm thick TiO2 layer. The experiment confirmed the favorable impact of both nanostructuring and p-n junction contributing tothe hole injection.

Název v anglickém jazyce

Nanostructured boron doped diamond enhancing the photoelectrochemical performance of TiO2/BDD heterojunction anodes

Popis výsledku anglicky

Photoelectrochemical (PEC) water splitting provides a promising way for development of sustainable methods of hydrogen generation and water treatment without chemicals. In this paper we report on the development of a unique PEC electrode consisting of nanostructured p-type boron doped diamond (BDD) layers covered by n-type TiO2 thin film. The influence of nanostructuring and boron doping level, as well as the thickness of TiO2 film on PEC properties was investigated. As-grown and plasma-nanostructured BDD thin films with two doping levels (B/C = 1 000 ppm and 10 000 ppm in gas phase) were utilized as substrates for deposition of 20, 100 and 500 nm TiO2 layers using RF magnetron sputtering. The highest photocurrent (60 μ A/cm2 and 3.2 mA/cm2 at 0 and 2 V vs Ag/AgCl respectively) was obtained in case of structured BDD electrode with B/C ratio in gas phase 1 000 ppm, covered by a 500 nm thick TiO2 layer. The experiment confirmed the favorable impact of both nanostructuring and p-n junction contributing tothe hole injection.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

<a href="/cs/project/FV10477" target="_blank" >FV10477: Technologie kombinovaného zdroje plasmatu pro vznik pokročilých povrchových úprav</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Vacuum

ISSN

0042-207X

e-ISSN

—

Svazek periodika

171

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

1-5

Kód UT WoS článku

000502894000005

EID výsledku v databázi Scopus

2-s2.0-85073958879