Pekka Eero Peljo

Cette personne n’est plus à l’EPFL

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Publications associées (48)

Redox 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 ...

Elsevier2017

Mediated water electrolysis in biphasic systems

Hubert Girault, Pekka Eero Peljo, Heron Vrubel, Micheal Diarmaid Scanlon, Lucie Josette Renée Rivier

The concept of efficient electrolysis by linking photoelectrochemical biphasic H2 evolution and water oxidation processes in the cathodic and anodic compartments of an H-cell, respectively, is introduced. Overpotentials at the cathode and anode are minimis ...

Royal Society of Chemistry2017

Single Organic Droplet Collision Voltammogram via Electron Transfer Coupled Ion Transfer

Pekka Eero Peljo, Haiqiang Deng, Cheng Liu

Single-emulsion toluene oil droplets (femtoliter) containing a hydrophobic redox probe that are dispersed in water stochastically collide with an ultramicroelectrode (UME). The fast-scan cyclic voltammetry (FSCV) or Fourier-transformed sinusoidal voltammet ...

American Chemical Society2017

Variation of the Fermi level and the Electrostatic Force of a Metallic Nanoparticle upon Colliding with an Electrode

Hubert Girault, Pekka Eero Peljo

When a metallic nanoparticle (NP) comes in close contact with an electrode, its Fermi level equilibrates with that of the electrode if their separation is less than the cut-off distance for electron tunnelling. In the absence of chemical reactions in solut ...

Royal Soc Chemistry2017

Heterogeneous versus homogeneous electron transfer reactions at liquid–liquid interfaces: The wrong question?

Hubert Girault, Pekka Eero Peljo, Evgeny Smirnov

Functionalization of a soft or liquid-liquid interface by a one gold nanoparticle thick “nanofilm” provides a conductive pathway to facilitate interfacial electron transfer from a lipophilic electron donor to a hydrophilic electron acceptor in a process kn ...

Elsevier Science Sa2016

Enhanced reactivity of water clusters towards oxidation in water/acetonitrile mixtures as studied by voltammetry at IrO2 nanoparticle modified FTO electrodes

Hubert Girault, Pekka Eero Peljo, Manuel Alejandro Méndez Agudelo, Jonnathan Cesar Hidalgo Acosta, Micheal Diarmaid Scanlon

The water oxidation process in acidified water/acetonitrile mixtures was studied by cyclic voltammetry using fluorinated tin oxide (FTO) electrodes modified layer-by-layer with deposited bilayers of positively charged poly(diallyldimethylammonium chloride) ...

Wiley-V C H Verlag Gmbh2016

All-Vanadium Dual Circuit Redox Flow Battery for Renewable Hydrogen Generation and Desulfurisation

Hubert Girault, Frédéric Gumy, Pekka Eero Peljo, Heron Vrubel, Véronique Amstutz, Christopher Raymond Dennison, Kathryn Ellen Toghill, Joana Morgado, Justine Nadine Liliane Pandard

An all-vanadium dual circuit redox flow battery is an electrochemical energy storage system capable to function as a conventional battery, but also to produce hydrogen and perform desulfurization when surplus of electricity is available by chemical dischar ...

Royal Society of Chemistry2016

Self-Healing Gold Mirrors and Filters at Liquid-Liquid Interfaces

Hubert Girault, Frédéric Gumy, Pekka Eero Peljo, Micheal Diarmaid Scanlon, Evgeny Smirnov

The optical and morphological properties of lustrous metal self-healing liquid-like nanofilms were systematically studied towards different applications (e.g., optical mirrors or filters). These nanofilms were formed by a one-step self-assembly methodology ...

Royal Soc Chemistry2016

Gold Nanofilm Redox Catalysis for Oxygen Reduction at Soft Interfaces

Hubert Girault, Pekka Eero Peljo, Micheal Diarmaid Scanlon, Evgeny Smirnov

Elsevier2016

Ion Transfer Battery: Storing Energy by Transferring Ions across Liquid-Liquid Interfaces

Hubert Girault, Pekka Eero Peljo, Marie Bichon

A battery utilizing the Galvani potential difference between aqueous and organic phases is demonstrated. The battery consists of two organic redox electrolytes separated by an immiscible aqueous phase. The charge is stored by transferring a salt from the a ...

Royal Society of Chemistry2016

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Enhanced reactivity of water clusters towards oxidation in water/acetonitrile mixtures as studied by voltammetry at IrO2 nanoparticle modified FTO electrodes

Hubert Girault, Pekka Eero Peljo, Manuel Alejandro Méndez Agudelo, Jonnathan Cesar Hidalgo Acosta, Micheal Diarmaid Scanlon

Wiley-V C H Verlag Gmbh2016