TY - JOUR
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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U2 - 10.1021/acsaem.2c02367
DO - 10.1021/acsaem.2c02367
M3 - Article
AN - SCOPUS:85142129987
SN - 2574-0962
VL - 5
SP - 13128
EP - 13133
JO - ACS Applied Energy Materials
JF - ACS Applied Energy Materials
IS - 11
ER -