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 journalArticlepeer-review


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 languageEnglish (US)
Pages (from-to)13128-13133
Number of pages6
JournalACS Applied Energy Materials
Issue number11
StatePublished - Nov 28 2022
Externally publishedYes


  • 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


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