Personne

Danick Reynard

Cette personne n’est plus à l’EPFL

Publications associées (9)

Redox dual-flow battery for combined electricity storage and hydrogen production

The energy transition towards a carbon-neutral and sustainable economy is one of the greatest challenges of the 21st century to combat global warming and pollution. The decarbonization process is affecting every sector of the economy (electricity, transpor ...

EPFL2022

Combined hydrogen production and electricity storage using a vanadium-manganese redox dual-flow battery

Hubert Girault, Danick Reynard

A redox dual-flow battery is distinct from a traditional redox flow battery (RFB) in that the former includes a secondary energy platform, in which the pre-charged electrolytes can be discharged in external catalytic reactors through decoupled redox-mediat ...

ELSEVIER2021

Hydrogen production on demand by redox-mediated electrocatalysis: A kinetic study

Hubert Girault, Sunny Isaïe Maye, Danick Reynard

Producing hydrogen from water using a redox mediator on solid electrocatalyst particles in a reactor offers several advantages over classical electrolysis in terms of safety, membrane degradation, purity and flexibility. Herein, vanadium-mediated hydrogen ...

ELSEVIER SCIENCE SA2021

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Nowadays, molybdenum carbides (Mo2C) represent alternative electrocatalysts to noble metal for the hydrogen evolution reaction (HER). Here, a fast and simple process is proposed for the fabrication of Mo2C-based electrocatalysts on a carbon cloth substrate ...

AMER CHEMICAL SOC2021

Vanadium‐manganese redox flow battery: Study of Mn(III) disproportionation in the presence of other metallic ions.

Hubert Girault, Pekka Eero Peljo, Sunny Isaïe Maye, Danick Reynard, Solène Cindy Gentil, Vimanshu Chanda

The Mn(III)/Mn(II) redox couple with a standard potential of +1.51 V vs . SHE has drawn interest for the design of V/Mn redox flow battery (RFB). However, Mn(III) disproportionation leads to a loss of capacity, an increase of pressure drop and electrode pa ...

Wiley2020

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Redox flow batteries (RFBs) are among the most investigated technologies for large scale energy storage applications. Since the first commercialization of all-vanadium RFB (in the early 90’s), the technology has evolved towards the development of new syste ...

2020

Solid electrochemical energy storage for aqueous redox flow batteries: The case of copper hexacyanoferrate

Hubert Girault, Pekka Eero Peljo, Evgeny Smirnov, Grégoire Clément Gschwend, Christopher Raymond Dennison, Danick Reynard, Solène Cindy Gentil, Elena Zanzola

All redox flow batteries suffer from low energy storage density in comparison with conventional Li-ion batteries. However, this issue can be mitigated by utilization of solid energy storage materials to enhance the energy storage capacity. In this paper we ...

2019

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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 GMBH2019

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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 ...

2018

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