What question did this study set out to answer?

Evaluate how nanoscale light-trapping architectures induce mass transport limitations and secondary efficiency losses during steady-state photoelectrochemical reactions.

September 17, 2026ACS electrochemistry.Open Access

Characterizing Mass Transport Effects for Photoelectrochemical Reactions in a Nanostructured, Light-Trapping Photoelectrode

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Authors

ADAshlyn G. DesCarpentrie RCRobert H. Coridan

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Overview

Experimental study demonstrates steady-state mass transport limitations and parasitic absorption in nanostructured photoelectrodes, highlighting performance trade-offs in solar fuel devices.

Key Points

Evaluate how nanoscale light-trapping architectures induce mass transport limitations and secondary efficiency losses during steady-state photoelectrochemical reactions.
Fabricated light-trapping photoelectrodes composed of an ultrathin TiO2 coating over colloidal photonic glass substrates.
Evaluated transient versus steady-state redox behavior across varying porosities using cyclic voltammetry with a reversible ferricyanide-ferrocyanide couple and potentiostatic measurements.
Performed finite-difference time-domain (FDTD) simulations to model optical losses from reaction product accumulation.
Photocurrent gains observed during cyclic voltammetry testing diminished during continuous potentiostatic steady-state operation due to mass transport restrictions.
Porosity-dependent mass transport limitations governed the local accumulation of ferricyanide reaction products near the electrode surface.
FDTD simulations revealed that accumulated ferricyanide products cause parasitic optical absorption, introducing a secondary efficiency loss mechanism.

Cite This Study

DesCarpentrie et al. (2026) studied this question.

synapsesocial.com/papers/6aabb69c5f706d05830e5350 https://doi.org/10.1021/acselectrochem.6c00253

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September 17, 2026ACS electrochemistry.Open Access

Characterizing Mass Transport Effects for Photoelectrochemical Reactions in a Nanostructured, Light-Trapping Photoelectrode

View Full Paper

Ask AI

Bookmark

Authors

ADAshlyn G. DesCarpentrie RCRobert H. Coridan

Discussion

Member takes

Overview

Experimental study demonstrates steady-state mass transport limitations and parasitic absorption in nanostructured photoelectrodes, highlighting performance trade-offs in solar fuel devices.

Key Points

Evaluate how nanoscale light-trapping architectures induce mass transport limitations and secondary efficiency losses during steady-state photoelectrochemical reactions.
Fabricated light-trapping photoelectrodes composed of an ultrathin TiO2 coating over colloidal photonic glass substrates.
Evaluated transient versus steady-state redox behavior across varying porosities using cyclic voltammetry with a reversible ferricyanide-ferrocyanide couple and potentiostatic measurements.
Performed finite-difference time-domain (FDTD) simulations to model optical losses from reaction product accumulation.
Photocurrent gains observed during cyclic voltammetry testing diminished during continuous potentiostatic steady-state operation due to mass transport restrictions.
Porosity-dependent mass transport limitations governed the local accumulation of ferricyanide reaction products near the electrode surface.
FDTD simulations revealed that accumulated ferricyanide products cause parasitic optical absorption, introducing a secondary efficiency loss mechanism.

Cite This Study

DesCarpentrie et al. (2026) studied this question.

synapsesocial.com/papers/6aabb69c5f706d05830e5350 https://doi.org/10.1021/acselectrochem.6c00253

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