Personne
Alberto Battistel
Cette personne n’est plus à l’EPFL
Publications associées (10)
Vanadium-oxygen cell for positive electrolyte discharge in dual-circuit vanadium redox flow battery
Hubert Girault, Justyna Piwek, Alberto Battistel, Christopher Raymond Dennison
The “dual-circuit redox flow battery” takes advantage of a conventional all-vanadium redox flow battery (VRFB) combined with a separated catalytic hydrogen evolution reactor. Depending on demand, the VRFB can be conventionally discharged or supply H2 by us ...
2019On-Site Purification of Copper-Contaminated Vanadium Electrolytes by using a Vanadium Redox Flow Battery
Hubert Girault, Heron Vrubel, Alberto Battistel, Christopher Raymond Dennison, Danick Reynard
Corrosion of carbon-based electrodes and bipolar plates is a major hurdle and can be a cause of failure in commercial vanadium redox flow batteries (VRFBs). Carbon corrosion was found to occur in a commercial VRFB (10 kW/40 kWh), whereby cracks through bip ...
WILEY-V C H VERLAG GMBH2019Non-Precious Electrodes for Practical Alkaline Water Electrolysis
Hubert Girault, Alberto Battistel, Alejandro Nicolás Colli
Water electrolysis is a promising approach to hydrogen production from renewable energy sources. Alkaline water electrolyzers allow using non-noble and low-cost materials. An analysis of common assumptions and experimental conditions (low concentrations, l ...
2019Local Study on Hydrogen and Hydrogen Gas Bubble Formation on a Platinum Electrode
Hubert Girault, Andreas Stephan Lesch, Alberto Battistel, Christopher Raymond Dennison
This work investigates the effect of current density on the hydrogen gas bubble formation during electrolysis on a platinum electrode. Local detection of bubble evolution was performed electrochemically by using a hydrogen-collecting microelectrode placed ...
AMER CHEMICAL SOC2019Efficiency improvement of an all-vanadium redox flow battery by harvesting low-grade heat
Hubert Girault, Alberto Battistel, Christopher Raymond Dennison, Danick Reynard
Redox flow batteries (RFBs) are rugged systems, which can withstand several thousand cycles and last many years. However, they suffer from low energy density, low power density, and low efficiency. Integrating a Thermally Regenerative Electrochemical Cycle ...
2018Electrochemical Reduction of Protic Supercritical CO2 on Copper Electrodes
Victor Costa Bassetto, Alberto Battistel, Patrick Voyame, Olga Melchaeva
The electrochemical reduction of carbon dioxide is usually studied in aqueous solutions under ambient conditions. However, the main disadvantages of this method are high hydrogen evolution and low faradaic efficiencies of carbon-based products. Supercritic ...
Wiley-VCH Verlag Berlin2017Redox Solid Energy Boosters for Flow Batteries: Polyaniline as a Case Study
Hubert Girault, Pekka Eero Peljo, Heron Vrubel, Véronique Amstutz, Alberto Battistel, Christopher Raymond Dennison, Elena Zanzola
In this work, the viability of polyaniline as a solid charge storage material in an aqueous redox-mediated flow battery is investigated. Fe(III/II) and V(IV/III) were identified as potential redox mediators to target the emeraldine-pernigraniline and leuco ...
Elsevier2017Dynamic impedance spectroscopy using dynamic multi-frequency analysis: A theoretical and experimental investigation
Dynamic impedance spectroscopy is a powerful tool to investigate the temporal development of reaction kinetics in electrochemical systems, where the reactive species may undergo irreversible changes during the measurement. In this work we redefined dynamic ...
Elsevier2017Modeling and Optimal Control of a Redox Flow Battery
Hubert Girault, Dominique Bonvin, Timm Faulwasser, Julien Léo Billeter, Heron Vrubel, Véronique Amstutz, Alberto Battistel, Daniel Wrang
Vanadium Redox Flow Batteries (VRFB) can be used as energy storage device, for example to account for wind or solar power fluctuations. In VRFBs charge is stored in two tanks containing two different vanadium solutions. This approach decouples the storage ...
2016On the Analysis of Non-stationary Impedance Spectra
In this work we study the possibility to analyze the non-stationary impedance spectra by employing standard equivalent circuits. For this purpose, the dynamic multi-frequency analysis (DMFA) is introduced and compared with a set of consecutive stationary i ...
Wiley-Blackwell2016