Publication
Kinetic Competition between Water-Splitting and Photocorrosion Reactions in Photoelectrochemical Devices
Related publications (36)
Trace Iridium Engineering on Nickel Hydroxide Nanosheets as High-active Catalyst for Overall Water Splitting
Designing cost-effective electrocatalysts for electrochemical water splitting to generate the hydrogen energy as a future energy source is pivotal. An excellent catalyst should show high catalytic activity for both hydrogen evolution reaction (HER) and oxy ...
WILEY-V C H VERLAG GMBH2020Unraveling the synergy between metal-organic frameworks and co-catalysts in photocatalytic water splitting
Alfredo Pasquarello, Stefano Falletta, Kyriakos Stylianou, Stavroula Kampouri, Patrick Gono, Zhendong Guo
We investigate the synergy occurring in photocatalytic water splitting between the metal-organic framework MIL-125-NH(2)and two co-catalysts, namely NiO and Ni2P, by calculating their band edge alignment with respect to the redox levels of liquid water. Fo ...
2020Mitigating voltage losses in photoelectrochemical cell scale-up
Sophia Haussener, Ronald Ramiro Gutierrez Perez
In solar water splitting, efforts in scaling up the photoelectrochemical cell beyond laboratory scale have started to attract significant attention. Several large-area devices have been demonstrated, but typically the efficiencies are much lower than their ...
ROYAL SOC CHEMISTRY2020Mitigating voltage losses in photoelectrochemical cell scale-up
Sophia Haussener, Ronald Ramiro Gutierrez Perez
In solar water splitting, efforts in scaling up the photoelectrochemical cell beyond laboratory scale have started to attract significant attention. Several large-area devices have been demonstrated, but typically the efficiencies are much lower than their ...
2020Kinetic competition between water splitting and photocorrosion reactions in photoelectrochemical devices
Sophia Haussener, Fredy Intelligent Nandjou Dongmeza
Semiconductor photocorrosion is a major challenge for the stability of photoelectrochemical water splitting devices. Usually, photocorrosion is studied on the basis of thermodynamic aspects, comparing the redox potentials of water to the self-decomposition ...
2019Linking Morphology and Multi-Physical Transport in Structured Electrodes
Motivated to advance the renewable energy production and diversify the technologies for storable energy carriers, my work is concentrated on the characterization and the optimization of electrode morphologies applicable in photoelectrochemical water-splitt ...
EPFL2019Water Activity from Equilibrium Molecular Dynamics Simulations and Kirkwood-Buff Theory
Satoshi Takahama, Mária Lbadaoui-Darvas
Water activity and related thermodynamic properties are calculated for several aqueous solutions using equilibrium molecular dynamics in conjunction with the recent extension of the Kirkwood-Buff (KB) theory for closed systems. The general applicability of ...
AMER CHEMICAL SOC2019Hematite Photoanodes for Solar Water Splitting: A Detailed Spectroelectrochemical Analysis on the pH-Dependent Performance
Nestor Guijarro Carratala, Florian Le Formal, Yongpeng Liu, Florent Alexandre Boudoire
The effect of the electrolyte pH on the performance of metal oxide photoanodes for solar water oxidation has not been fully resolved, and contrasting views have been presented in recent reports. Herein, a comprehensive set of spectroelectrochemical techniq ...
AMER CHEMICAL SOC2019Nanocrystalline Boron-Doped Diamond as a Corrosion-Resistant Anode for Water Oxidation via Si Photoelectrodes
Kevin Sivula, Jun Ho Yum, Ladislav Kavan, Florian Le Formal, Petr Ashcheulov
Due to its high sensitivity to corrosion, the use of Si in direct photoelectrochemical (PEC) water-splitting systems that convert solar energy into chemical fuels has been greatly limited. Therefore, the development of low-cost materials resistant to corro ...
AMER CHEMICAL SOC2018Temperature dependence of water-water and ion-water correlations in bulk water and electrolyte solutions probed by femtosecond elastic second harmonic scattering
Sylvie Roke, Nathan Dupertuis, Yixing Chen, Halil Ibrahim Okur
The temperature dependence of the femtosecond elastic second harmonic scattering (fs-ESHS) response of bulk light and heavy water and their electrolyte solutions is presented. We observe clear temperature dependent changes in the hydrogen (H)-bond network ...
2018