Photoanodes based on TiO2 and alpha-Fe2O3 for solar water splitting - superior role of 1D nanoarchitectures and of combined heterostructures

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73583120" target="_blank" >RIV/61989592:15310/17:73583120 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22310/17:43914980

Result on the web

<a href="http://pubs.rsc.org/en/content/articlehtml/2017/cs/c6cs00015k" target="_blank" >http://pubs.rsc.org/en/content/articlehtml/2017/cs/c6cs00015k</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c6cs00015k" target="_blank" >10.1039/c6cs00015k</a>

Result language

angličtina

Original language name

Photoanodes based on TiO2 and alpha-Fe2O3 for solar water splitting - superior role of 1D nanoarchitectures and of combined heterostructures

Original language description

Solar driven photoelectrochemical water splitting (PEC-WS) using semiconductor photoelectrodes represents a promising approach for a sustainable and environmentally friendly production of renewable energy vectors and fuel sources, such as dihydrogen (H-2). In this context, titanium dioxide (TiO2) and iron oxide (hematite, alpha-Fe2O3) are among the most investigated candidates as photoanode materials, mainly owing to their resistance to photocorrosion, non-toxicity, natural abundance, and low production cost. Major drawbacks are, however, an inherently low electrical conductivity and a limited hole diffusion length that significantly affect the performance of TiO2 and alpha-Fe2O3 in PEC devices. To this regard, one-dimensional (1D) nanostructuring is typically applied as it provides several superior features such as a significant enlargement of the material surface area, extended contact between the semiconductor and the electrolyte and, most remarkably, preferential electrical transport that overall suppress charge carrier recombination and improve TiO2 and alpha-Fe2O3 photoelectrocatalytic properties. The present review describes various synthetic methods and modifying concepts of 1D-photoanodes (nanotubes, nanorods, nanofibers, nanowires) based on titania, hematite, and on alpha-Fe2O3/TiO2 heterostructures, for PEC applications. Various routes towards modification and enhancement of PEC activity of 1D photoanodes are discussed including doping, decoration with co-catalysts and heterojunction engineering. Finally, the challenges related to the optimization of charge transfer kinetics in both oxides are highlighted.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

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

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2017

Confidentiality

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

Name of the periodical

Chemical Society Reviews

ISSN

0306-0012

e-ISSN

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Volume of the periodical

46

Issue of the periodical within the volume

12

Country of publishing house

GB - UNITED KINGDOM

Number of pages

54

Pages from-to

3716-3769

UT code for WoS article

000403555500006

EID of the result in the Scopus database

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