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Title: A stable dye-sensitized photoelectrosynthesis cell mediated by a NiO overlayer for water oxidation

Abstract

In the development of photoelectrochemical cells for water splitting or CO 2 reduction, a major challenge is O 2 evolution at photoelectrodes that, in behavior, mimic photosystem II. At an appropriate semiconductor electrode, a water oxidation catalyst must be integrated with a visible light absorber in a stable half-cell configuration. Here, we describe an electrode consisting of a light absorber, an intermediate electron donor layer, and a water oxidation catalyst for sustained light driven water oxidation catalysis. In assembling the electrode on nanoparticle SnO 2 /TiO 2 electrodes, a Ru(II) polypyridyl complex was used as the light absorber, NiO was deposited as an overlayer, and a Ru(II) 2,2′-bipyridine-6,6′-dicarboxylate complex as the water oxidation catalyst. In the final electrode, addition of the NiO overlayer enhanced performance toward water oxidation with the final electrode operating with a 1.1 mA/cm 2 photocurrent density for 2 h without decomposition under one sun illumination in a pH 4.65 solution. We attribute the enhanced performance to the role of NiO as an electron transfer mediator between the light absorber and the catalyst.

Authors:
; ; ; ; ORCiD logo; ; ; ; ; ORCiD logo; ; ORCiD logo
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1563027
Grant/Contract Number:  
NE0008539; SC0001011
Resource Type:
Published Article
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Name: Proceedings of the National Academy of Sciences of the United States of America; Journal ID: ISSN 0027-8424
Publisher:
Proceedings of the National Academy of Sciences
Country of Publication:
United States
Language:
English

Citation Formats

Wang, Degao, Niu, Fujun, Mortelliti, Michael J., Sheridan, Matthew V., Sherman, Benjamin D., Zhu, Yong, McBride, James R., Dempsey, Jillian L., Shen, Shaohua, Dares, Christopher J., Li, Fei, and Meyer, Thomas J. A stable dye-sensitized photoelectrosynthesis cell mediated by a NiO overlayer for water oxidation. United States: N. p., 2019. Web. doi:10.1073/pnas.1821687116.
Wang, Degao, Niu, Fujun, Mortelliti, Michael J., Sheridan, Matthew V., Sherman, Benjamin D., Zhu, Yong, McBride, James R., Dempsey, Jillian L., Shen, Shaohua, Dares, Christopher J., Li, Fei, & Meyer, Thomas J. A stable dye-sensitized photoelectrosynthesis cell mediated by a NiO overlayer for water oxidation. United States. doi:10.1073/pnas.1821687116.
Wang, Degao, Niu, Fujun, Mortelliti, Michael J., Sheridan, Matthew V., Sherman, Benjamin D., Zhu, Yong, McBride, James R., Dempsey, Jillian L., Shen, Shaohua, Dares, Christopher J., Li, Fei, and Meyer, Thomas J. Thu . "A stable dye-sensitized photoelectrosynthesis cell mediated by a NiO overlayer for water oxidation". United States. doi:10.1073/pnas.1821687116.
@article{osti_1563027,
title = {A stable dye-sensitized photoelectrosynthesis cell mediated by a NiO overlayer for water oxidation},
author = {Wang, Degao and Niu, Fujun and Mortelliti, Michael J. and Sheridan, Matthew V. and Sherman, Benjamin D. and Zhu, Yong and McBride, James R. and Dempsey, Jillian L. and Shen, Shaohua and Dares, Christopher J. and Li, Fei and Meyer, Thomas J.},
abstractNote = {In the development of photoelectrochemical cells for water splitting or CO 2 reduction, a major challenge is O 2 evolution at photoelectrodes that, in behavior, mimic photosystem II. At an appropriate semiconductor electrode, a water oxidation catalyst must be integrated with a visible light absorber in a stable half-cell configuration. Here, we describe an electrode consisting of a light absorber, an intermediate electron donor layer, and a water oxidation catalyst for sustained light driven water oxidation catalysis. In assembling the electrode on nanoparticle SnO 2 /TiO 2 electrodes, a Ru(II) polypyridyl complex was used as the light absorber, NiO was deposited as an overlayer, and a Ru(II) 2,2′-bipyridine-6,6′-dicarboxylate complex as the water oxidation catalyst. In the final electrode, addition of the NiO overlayer enhanced performance toward water oxidation with the final electrode operating with a 1.1 mA/cm 2 photocurrent density for 2 h without decomposition under one sun illumination in a pH 4.65 solution. We attribute the enhanced performance to the role of NiO as an electron transfer mediator between the light absorber and the catalyst.},
doi = {10.1073/pnas.1821687116},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1073/pnas.1821687116

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Works referenced in this record:

Photoassisted Overall Water Splitting in a Visible Light-Absorbing Dye-Sensitized Photoelectrochemical Cell
journal, January 2009

  • Youngblood, W. Justin; Lee, Seung-Hyun Anna; Kobayashi, Yoji
  • Journal of the American Chemical Society, Vol. 131, Issue 3, p. 926-927
  • DOI: 10.1021/ja809108y