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@ARTICLE{Tang:878319,
author = {Tang, Peng‐Yi and Han, Li‐Juan and Hegner, Franziska
Simone and Paciok, Paul and Biset‐Peiró, Martí and Du,
Hong‐Chu and Wei, Xian‐Kui and Jin, Lei and Xie,
Hai‐Bing and Shi, Qin and Andreu, Teresa and
Lira‐Cantú, Mónica and Heggen, Marc and
Dunin‐Borkowski, Rafal E. and López, Núria and
Galán‐Mascarós, José Ramón and Morante, Joan Ramon and
Arbiol, Jordi},
title = {{B}oosting {P}hotoelectrochemical {W}ater {O}xidation of
{H}ematite in {A}cidic {E}lectrolytes by {S}urface {S}tate
{M}odification5},
journal = {Advanced energy materials},
volume = {9},
number = {34},
issn = {1614-6840},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2020-02775},
pages = {1901836 -},
year = {2019},
abstract = {State‐of‐the‐art water‐oxidation catalysts (WOCs)
in acidic electrolytes usually contain expensive noble
metals such as ruthenium and iridium. However, they too
expensive to be implemented broadly in semiconductor
photoanodes for photoelectrochemical (PEC) water splitting
devices. Here, an Earth‐abundant CoFe Prussian blue
analogue (CoFe‐PBA) is incorporated with core–shell
Fe2O3/Fe2TiO5 type II heterojunction nanowires as composite
photoanodes for PEC water splitting. Those deliver a high
photocurrent of 1.25 mA cm−2 at 1.23 V versus reversible
reference electrode in acidic electrolytes (pH = 1). The
enhancement arises from the synergic behavior between the
successive decoration of the hematite surface with
nanolayers of Fe2TiO5 and then, CoFe‐PBA. The underlying
physical mechanism of performance enhancement through
formation of the Fe2O3/Fe2TiO5/CoFe‐PBA heterostructure
reveals that the surface states’ electronic levels of
hematite are modified such that an interfacial charge
transfer becomes kinetically favorable. These findings open
new pathways for the future design of cheap and efficient
hematite‐based photoanodes in acidic electrolytes.},
cin = {ER-C-1 / ER-C-2 / PGI-5},
ddc = {050},
cid = {I:(DE-Juel1)ER-C-1-20170209 / I:(DE-Juel1)ER-C-2-20170209 /
I:(DE-Juel1)PGI-5-20110106},
pnm = {143 - Controlling Configuration-Based Phenomena (POF3-143)
/ DFG project 167917811 - SFB 917: Resistiv schaltende
Chalkogenide für zukünftige Elektronikanwendungen:
Struktur, Kinetik und Bauelementskalierung "Nanoswitches"
(167917811)},
pid = {G:(DE-HGF)POF3-143 / G:(GEPRIS)167917811},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000484080400001},
doi = {10.1002/aenm.201901836},
url = {https://juser.fz-juelich.de/record/878319},
}