A Semiconductor-Mediator-Catalyst Artificial Photosynthetic System for Photoelectrochemical Water Oxidation

Fujun Niu; Degao Wang; Lenzi J. Williams; Animesh Nayak; Fei Li; Xiangyan Chen; Ludovic Troian-Gautier; Qing Huang; Yanming Liu; M. Kyle Brennaman; John M. Papanikolas; Liejin Guo; Shaohua Shen; Thomas J. Meyer

doi:10.1002/chem.202102630

A Semiconductor-Mediator-Catalyst Artificial Photosynthetic System for Photoelectrochemical Water Oxidation

Fujun Niu
, Degao Wang
, Lenzi J. Williams
, Animesh Nayak
, Fei Li
, Xiangyan Chen
, Ludovic Troian-Gautier
, Qing Huang
, Yanming Liu
, M. Kyle Brennaman
, John M. Papanikolas
, Liejin Guo
, Shaohua Shen
, Thomas J. Meyer

School of Energy and Power Engineering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

In fabricating an artificial photosynthesis (AP) electrode for water oxidation, we have devised a semiconductor-mediator-catalyst structure that mimics photosystem II (PSII). It is based on a surface layer of vertically grown nanorods of Fe₂O₃ on fluorine doped tin oxide (FTO) electrodes with a carbazole mediator base and a Ru(II) carbene complex on a nanolayer of TiO₂ as a water oxidation co-catalyst. The resulting hybrid assembly, FTO|Fe₂O₃|−carbazole|TiO₂|−Ru(carbene), demonstrates an enhanced photoelectrochemical (PEC) water oxidation performance compared to an electrode without the added carbaozle base with an increase in photocurrent density of 2.2-fold at 0.95 V vs. NHE and a negatively shifted onset potential of 500 mV. The enhanced PEC performance is attributable to carbazole mediator accelerated interfacial hole transfer from Fe₂O₃ to the Ru(II) carbene co-catalyst, with an improved effective surface area for the water oxidation reaction and reduced charge transfer resistance.

Original language	English
Article number	e202102630
Journal	Chemistry - A European Journal
Volume	28
Issue number	10
DOIs	https://doi.org/10.1002/chem.202102630
State	Published - 21 Feb 2022

Keywords

heterogeneous catalysis
photocatalysis
photoelectrochemistry water oxidation
water splitting

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/chem.202102630

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Niu, F., Wang, D., Williams, L. J., Nayak, A., Li, F., Chen, X., Troian-Gautier, L., Huang, Q., Liu, Y., Brennaman, M. K., Papanikolas, J. M., Guo, L., Shen, S., & Meyer, T. J. (2022). A Semiconductor-Mediator-Catalyst Artificial Photosynthetic System for Photoelectrochemical Water Oxidation. Chemistry - A European Journal, 28(10), Article e202102630. https://doi.org/10.1002/chem.202102630

@article{588783224fad42c68224dedc9ff74469,

title = "A Semiconductor-Mediator-Catalyst Artificial Photosynthetic System for Photoelectrochemical Water Oxidation",

abstract = "In fabricating an artificial photosynthesis (AP) electrode for water oxidation, we have devised a semiconductor-mediator-catalyst structure that mimics photosystem II (PSII). It is based on a surface layer of vertically grown nanorods of Fe2O3 on fluorine doped tin oxide (FTO) electrodes with a carbazole mediator base and a Ru(II) carbene complex on a nanolayer of TiO2 as a water oxidation co-catalyst. The resulting hybrid assembly, FTO|Fe2O3|−carbazole|TiO2|−Ru(carbene), demonstrates an enhanced photoelectrochemical (PEC) water oxidation performance compared to an electrode without the added carbaozle base with an increase in photocurrent density of 2.2-fold at 0.95 V vs. NHE and a negatively shifted onset potential of 500 mV. The enhanced PEC performance is attributable to carbazole mediator accelerated interfacial hole transfer from Fe2O3 to the Ru(II) carbene co-catalyst, with an improved effective surface area for the water oxidation reaction and reduced charge transfer resistance.",

keywords = "heterogeneous catalysis, photocatalysis, photoelectrochemistry water oxidation, water splitting",

author = "Fujun Niu and Degao Wang and Williams, \{Lenzi J.\} and Animesh Nayak and Fei Li and Xiangyan Chen and Ludovic Troian-Gautier and Qing Huang and Yanming Liu and Brennaman, \{M. Kyle\} and Papanikolas, \{John M.\} and Liejin Guo and Shaohua Shen and Meyer, \{Thomas J.\}",

note = "Publisher Copyright: {\textcopyright} 2022 Wiley-VCH GmbH",

year = "2022",

month = feb,

day = "21",

doi = "10.1002/chem.202102630",

language = "英语",

volume = "28",

journal = "Chemistry - A European Journal",

issn = "0947-6539",

publisher = "John Wiley and Sons Inc",

number = "10",

}

Niu, F, Wang, D, Williams, LJ, Nayak, A, Li, F, Chen, X, Troian-Gautier, L, Huang, Q, Liu, Y, Brennaman, MK, Papanikolas, JM, Guo, L , Shen, S & Meyer, TJ 2022, 'A Semiconductor-Mediator-Catalyst Artificial Photosynthetic System for Photoelectrochemical Water Oxidation', Chemistry - A European Journal, vol. 28, no. 10, e202102630. https://doi.org/10.1002/chem.202102630

TY - JOUR

T1 - A Semiconductor-Mediator-Catalyst Artificial Photosynthetic System for Photoelectrochemical Water Oxidation

AU - Niu, Fujun

AU - Wang, Degao

AU - Williams, Lenzi J.

AU - Nayak, Animesh

AU - Li, Fei

AU - Chen, Xiangyan

AU - Troian-Gautier, Ludovic

AU - Huang, Qing

AU - Liu, Yanming

AU - Brennaman, M. Kyle

AU - Papanikolas, John M.

AU - Guo, Liejin

AU - Shen, Shaohua

AU - Meyer, Thomas J.

PY - 2022/2/21

Y1 - 2022/2/21

N2 - In fabricating an artificial photosynthesis (AP) electrode for water oxidation, we have devised a semiconductor-mediator-catalyst structure that mimics photosystem II (PSII). It is based on a surface layer of vertically grown nanorods of Fe2O3 on fluorine doped tin oxide (FTO) electrodes with a carbazole mediator base and a Ru(II) carbene complex on a nanolayer of TiO2 as a water oxidation co-catalyst. The resulting hybrid assembly, FTO|Fe2O3|−carbazole|TiO2|−Ru(carbene), demonstrates an enhanced photoelectrochemical (PEC) water oxidation performance compared to an electrode without the added carbaozle base with an increase in photocurrent density of 2.2-fold at 0.95 V vs. NHE and a negatively shifted onset potential of 500 mV. The enhanced PEC performance is attributable to carbazole mediator accelerated interfacial hole transfer from Fe2O3 to the Ru(II) carbene co-catalyst, with an improved effective surface area for the water oxidation reaction and reduced charge transfer resistance.

AB - In fabricating an artificial photosynthesis (AP) electrode for water oxidation, we have devised a semiconductor-mediator-catalyst structure that mimics photosystem II (PSII). It is based on a surface layer of vertically grown nanorods of Fe2O3 on fluorine doped tin oxide (FTO) electrodes with a carbazole mediator base and a Ru(II) carbene complex on a nanolayer of TiO2 as a water oxidation co-catalyst. The resulting hybrid assembly, FTO|Fe2O3|−carbazole|TiO2|−Ru(carbene), demonstrates an enhanced photoelectrochemical (PEC) water oxidation performance compared to an electrode without the added carbaozle base with an increase in photocurrent density of 2.2-fold at 0.95 V vs. NHE and a negatively shifted onset potential of 500 mV. The enhanced PEC performance is attributable to carbazole mediator accelerated interfacial hole transfer from Fe2O3 to the Ru(II) carbene co-catalyst, with an improved effective surface area for the water oxidation reaction and reduced charge transfer resistance.

KW - heterogeneous catalysis

KW - photocatalysis

KW - photoelectrochemistry water oxidation

KW - water splitting

UR - https://www.scopus.com/pages/publications/85124153139

U2 - 10.1002/chem.202102630

DO - 10.1002/chem.202102630

M3 - 文章

C2 - 35113460

AN - SCOPUS:85124153139

SN - 0947-6539

VL - 28

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

IS - 10

M1 - e202102630

ER -

A Semiconductor-Mediator-Catalyst Artificial Photosynthetic System for Photoelectrochemical Water Oxidation

Abstract

Keywords

UN SDGs

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