Fe/Ru Oxide as a Versatile and Effective Cocatalyst for Boosting Z-Scheme Water-Splitting: Suppressing Undesirable Backward Electron Transfer
Akinobu Nakada
1
,
Hajime Suzuki
1
,
Junie Jhon M. Vequizo
2
,
Kanta Ogawa
1
,
Masanobu Higashi
1
,
Akinori Saeki
3
,
Akira Yamakata
2
,
Hiroshi KAGEYAMA
1, 4
,
Ryu-ta Abe
1, 4
Publication type: Journal Article
Publication date: 2019-11-15
scimago Q1
wos Q1
SJR: 1.921
CiteScore: 14.5
Impact factor: 8.2
ISSN: 19448244, 19448252
PubMed ID:
31726820
General Materials Science
Abstract
The atificial Z-scheme is a promising and rational strategy for solar-to-chemical energy conversion such as water-splitting. In the Z-scheme, backward redox processes are an essential drawback that should be overcome to increase its efficiency. Here, we demonstrate that the simple co-loading of Fe/Ru oxide, (Fe,Ru)Ox, onto various photocatalysts effectively improves the efficiency of water oxidation by suppressing the undesirable backward oxidation of the redox reagent Fe2+. The (Fe,Ru)Ox co-loading on Bi4TaO8Cl afforded the highest water-splitting activity (apparent quantum efficiency of 1.6% at 420 nm) among the Z-scheme systems employing mixed-anion compounds as O2-evolving photocatalysts. The results of photoelectrochemical and electrochemical measurements along with time-resolved spectroscopy clarified the key roles of Fe/Ru oxide; the Ru oxide component functions as a "collector" of photogenerated carriers and active sites for surface redox reactions, while the Fe oxide component acts as a "blocker" against unfavorable Fe2+ oxidation. The versatile availability of Fe/Ru oxide has been demonstrated for other visible-light-responsive photocatalysts.
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Total citations:
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Citations from 2024:
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(55%)
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GOST
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Nakada A. et al. Fe/Ru Oxide as a Versatile and Effective Cocatalyst for Boosting Z-Scheme Water-Splitting: Suppressing Undesirable Backward Electron Transfer // ACS applied materials & interfaces. 2019. Vol. 11. No. 49. pp. 45606-45611.
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Nakada A., Suzuki H., Vequizo J. J. M., Ogawa K., Higashi M., Saeki A., Yamakata A., KAGEYAMA H., Abe R. Fe/Ru Oxide as a Versatile and Effective Cocatalyst for Boosting Z-Scheme Water-Splitting: Suppressing Undesirable Backward Electron Transfer // ACS applied materials & interfaces. 2019. Vol. 11. No. 49. pp. 45606-45611.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1021/acsami.9b14802
UR - https://doi.org/10.1021/acsami.9b14802
TI - Fe/Ru Oxide as a Versatile and Effective Cocatalyst for Boosting Z-Scheme Water-Splitting: Suppressing Undesirable Backward Electron Transfer
T2 - ACS applied materials & interfaces
AU - Nakada, Akinobu
AU - Suzuki, Hajime
AU - Vequizo, Junie Jhon M.
AU - Ogawa, Kanta
AU - Higashi, Masanobu
AU - Saeki, Akinori
AU - Yamakata, Akira
AU - KAGEYAMA, Hiroshi
AU - Abe, Ryu-ta
PY - 2019
DA - 2019/11/15
PB - American Chemical Society (ACS)
SP - 45606-45611
IS - 49
VL - 11
PMID - 31726820
SN - 1944-8244
SN - 1944-8252
ER -
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BibTex (up to 50 authors)
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@article{2019_Nakada,
author = {Akinobu Nakada and Hajime Suzuki and Junie Jhon M. Vequizo and Kanta Ogawa and Masanobu Higashi and Akinori Saeki and Akira Yamakata and Hiroshi KAGEYAMA and Ryu-ta Abe},
title = {Fe/Ru Oxide as a Versatile and Effective Cocatalyst for Boosting Z-Scheme Water-Splitting: Suppressing Undesirable Backward Electron Transfer},
journal = {ACS applied materials & interfaces},
year = {2019},
volume = {11},
publisher = {American Chemical Society (ACS)},
month = {nov},
url = {https://doi.org/10.1021/acsami.9b14802},
number = {49},
pages = {45606--45611},
doi = {10.1021/acsami.9b14802}
}
Cite this
MLA
Copy
Nakada, Akinobu, et al. “Fe/Ru Oxide as a Versatile and Effective Cocatalyst for Boosting Z-Scheme Water-Splitting: Suppressing Undesirable Backward Electron Transfer.” ACS applied materials & interfaces, vol. 11, no. 49, Nov. 2019, pp. 45606-45611. https://doi.org/10.1021/acsami.9b14802.