Degrade-Repair Cycle of a Fuel-Forming Photoelectrode

Nghi P. Nguyen; Lillian K. Hensleigh; Daiki Nishiori; Edgar A. Reyes Cruz; Gary F. Moore

doi:10.1021/acsaem.2c02367

Degrade-Repair Cycle of a Fuel-Forming Photoelectrode

Nghi P. Nguyen, Lillian K. Hensleigh, Daiki Nishiori, Edgar A. Reyes Cruz, Gary F. Moore

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

Abstract

Artificial leaves that produce fuels using sunlight hold promise for sustainably powering the planet, but they require advancements in energetic efficiency, cost effectiveness, and operational durability. Herein, we showcase the application of combined surface-sensitive spectroscopic techniques to durability studies that characterize structural changes accompanying functional degradation and go beyond just observing changes in function over time. The photoelectrodes used in this work feature a polymeric surface coating functionalized with molecular complexes that catalyze the hydrogen evolution reaction. Using a polymeric layer to interface the light-harvesting component with catalytic sites enables reassembly of catalysts that detach during operation, establishing a degrade-repair cycle.

Original language	English (US)
Pages (from-to)	13128-13133
Number of pages	6
Journal	ACS Applied Energy Materials
Volume	5
Issue number	11
DOIs	https://doi.org/10.1021/acsaem.2c02367
State	Published - Nov 28 2022
Externally published	Yes

Keywords

degradation mechanisms
hydrogen evolution reaction
molecular catalysts
photo-electrochemistry
polymeric coatings
surface characterization techniques

ASJC Scopus subject areas

Chemical Engineering (miscellaneous)
Energy Engineering and Power Technology
Electrochemistry
Materials Chemistry
Electrical and Electronic Engineering

Access to Document

10.1021/acsaem.2c02367

Cite this

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title = "Degrade-Repair Cycle of a Fuel-Forming Photoelectrode",

abstract = "Artificial leaves that produce fuels using sunlight hold promise for sustainably powering the planet, but they require advancements in energetic efficiency, cost effectiveness, and operational durability. Herein, we showcase the application of combined surface-sensitive spectroscopic techniques to durability studies that characterize structural changes accompanying functional degradation and go beyond just observing changes in function over time. The photoelectrodes used in this work feature a polymeric surface coating functionalized with molecular complexes that catalyze the hydrogen evolution reaction. Using a polymeric layer to interface the light-harvesting component with catalytic sites enables reassembly of catalysts that detach during operation, establishing a degrade-repair cycle.",

keywords = "degradation mechanisms, hydrogen evolution reaction, molecular catalysts, photo-electrochemistry, polymeric coatings, surface characterization techniques",

author = "Nguyen, {Nghi P.} and Hensleigh, {Lillian K.} and Daiki Nishiori and {Reyes Cruz}, {Edgar A.} and Moore, {Gary F.}",

note = "Funding Information: This material is based upon work supported by the National Science Foundation under Early Career Award 1653982 (polymeric surface chemistry) and by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Early Career Award DE-SC0021186 (degradation kinetics and durability studies). G.F.M. acknowledges support from the Camille Dreyfus Teacher-Scholar Awards Program. N.P.N. acknowledges support from a Completion Fellowship provided by the Arizona State University Graduate College. The authors gratefully acknowledge D. Convey in the Goldwater Materials Science Facility at Arizona State University for assistance with ellipsometry measurements and T. Karcher in the Eyring Materials Center at Arizona State University for assistance with XP spectroscopy data collection. Publisher Copyright: {\textcopyright} 2022 American Chemical Society.",

year = "2022",

month = nov,

day = "28",

doi = "10.1021/acsaem.2c02367",

language = "English (US)",

volume = "5",

pages = "13128--13133",

journal = "ACS Applied Energy Materials",

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publisher = "American Chemical Society",

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T1 - Degrade-Repair Cycle of a Fuel-Forming Photoelectrode

AU - Nguyen, Nghi P.

AU - Hensleigh, Lillian K.

AU - Nishiori, Daiki

AU - Reyes Cruz, Edgar A.

AU - Moore, Gary F.

N1 - Funding Information: This material is based upon work supported by the National Science Foundation under Early Career Award 1653982 (polymeric surface chemistry) and by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Early Career Award DE-SC0021186 (degradation kinetics and durability studies). G.F.M. acknowledges support from the Camille Dreyfus Teacher-Scholar Awards Program. N.P.N. acknowledges support from a Completion Fellowship provided by the Arizona State University Graduate College. The authors gratefully acknowledge D. Convey in the Goldwater Materials Science Facility at Arizona State University for assistance with ellipsometry measurements and T. Karcher in the Eyring Materials Center at Arizona State University for assistance with XP spectroscopy data collection. Publisher Copyright: © 2022 American Chemical Society.

PY - 2022/11/28

Y1 - 2022/11/28

N2 - Artificial leaves that produce fuels using sunlight hold promise for sustainably powering the planet, but they require advancements in energetic efficiency, cost effectiveness, and operational durability. Herein, we showcase the application of combined surface-sensitive spectroscopic techniques to durability studies that characterize structural changes accompanying functional degradation and go beyond just observing changes in function over time. The photoelectrodes used in this work feature a polymeric surface coating functionalized with molecular complexes that catalyze the hydrogen evolution reaction. Using a polymeric layer to interface the light-harvesting component with catalytic sites enables reassembly of catalysts that detach during operation, establishing a degrade-repair cycle.

AB - Artificial leaves that produce fuels using sunlight hold promise for sustainably powering the planet, but they require advancements in energetic efficiency, cost effectiveness, and operational durability. Herein, we showcase the application of combined surface-sensitive spectroscopic techniques to durability studies that characterize structural changes accompanying functional degradation and go beyond just observing changes in function over time. The photoelectrodes used in this work feature a polymeric surface coating functionalized with molecular complexes that catalyze the hydrogen evolution reaction. Using a polymeric layer to interface the light-harvesting component with catalytic sites enables reassembly of catalysts that detach during operation, establishing a degrade-repair cycle.

KW - degradation mechanisms

KW - hydrogen evolution reaction

KW - molecular catalysts

KW - photo-electrochemistry

KW - polymeric coatings

KW - surface characterization techniques

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Degrade-Repair Cycle of a Fuel-Forming Photoelectrode

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Reports Summarize Energy Materials Study Results from Arizona State University (Degrade-repair Cycle of a Fuel-forming Photoelectrode)

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Degrade-Repair Cycle of a Fuel-Forming Photoelectrode

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Reports Summarize Energy Materials Study Results from Arizona State University (Degrade-repair Cycle of a Fuel-forming Photoelectrode)

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