Publications de Imren Hatay | EPFL Graph Search

1D Amorphous Tungsten-Based Ternary Refractory Metal Sulfides for Catalytic Hydrogen Evolution at Soft Interfaces

Transition metals incorporated into molybdenum sulfide and tungsten sulfide matrixes are promising candidates for hydrogen evolution due to the unique chemical and physical properties. Here, we first describe a general strategy for the synthesis of rod-lik ...

WILEY-V C H VERLAG GMBH2019

Photoinduced Biphasic Hydrogen Evolution: Decamethylosmocene as a Light-Driven Electron Donor

Hubert Girault, Imren Hatay, Heron Vrubel, Peiyu Ge, Astrid Johana Olaya Avendano, Micheal Diarmaid Scanlon

Excitation of the weak electron donor decamethylosmocene on illumination with white light produces an excited-state species capable of reducing organically solubilized protons under biphasic conditions. Insight into the mechanism and kinetics of light-driv ...

Wiley-Blackwell2013

Biphasic water splitting by osmocene

Hubert Girault, Anne-Clémence Corminboeuf, Xile Hu, Manuel Alejandro Méndez Agudelo, Imren Hatay, Heron Vrubel, Peiyu Ge, Astrid Johana Olaya Avendano

The photochemical reactivity of osmocene in a biphasic water-organic solvent system has been investigated to probe its water splitting properties. The photoreduction of aqueous protons to hydrogen under anaerobic conditions induced by osmocene dissolved in ...

National Academy of Sciences2012

Hydrogen evolution catalyzed by electrodeposited nanoparticles at the liquid/liquid interface

Hubert Girault, Manuel Alejandro Méndez Agudelo, Imren Hatay, Peiyu Ge, Joonas Jalmari Nieminen

Aqueous protons reduction by decamethylferrocene in 1,2-dichloroethane can be catalyzed efficiently by platinum and palladium nanoparticles electrogenerated in situ at the liquid–liquid interface. ...

Royal Society of Chemistry2011

Artificial Photosynthesis at Soft Interfaces

Hubert Girault, Patrick Voyame, Fernando Cortes Salazar, Manuel Alejandro Méndez Agudelo, Imren Hatay, Peiyu Ge, Astrid Johana Olaya Avendano, Haiqiang Deng, Zahra Nazemi

The concept of artificial photosynthesis at a polarised liquid membrane is presented. It includes two photosystems, one at each interface for the hydrogen and oxygen evolution respectively. Both reactions involve proton coupled electron transfer reactions, ...

Schweizerische Chemische Gesellschaft2011

Hydrogen evolution at polarised liquid/liquid interfaces catalyzed by molybdenum disulfide

Hubert Girault, Xile Hu, Imren Hatay, Heron Vrubel, Peiyu Ge

Molybdenum disulfide microparticles in suspension in an aqueous acidic solution adsorb at the interface with an organic electrolyte solution containing the reducing agent, decamethylferrocene, to catalyse hydrogen evolution. This catalytic process has been ...

2011

Molecular Electrocatalysis for Oxygen Reduction by Cobalt Porphyrins Adsorbed at Liquid/Liquid Interfaces

Hubert Girault, Zdenek Samec, Pierre-Alain Carrupt, Bin Su, Imren Hatay

Molecular electrocatalysis for oxygen reduction at a polarized water/1,2-dichloroethane (DCE) interface was studied, involving aqueous protons, ferrocene (Fc) in DCE and amphiphilic cobalt porphyrin catalysts adsorbed at the interface. The catalyst, (2,8,1 ...

2010

Oxygen reduction by decamethylferrocene at liquid/liquid interfaces catalyzed by dodecylaniline

Hubert Girault, Zdenek Samec, Bin Su, Raheleh Partovi Nia, Manuel Alejandro Méndez Agudelo, Imren Hatay

Molecular oxygen (O2) reduction by decamethylferrocene (DMFc) was investigated at a polarized water/ 1,2-dichloroethane (DCE) interface. Electrochemical results point to a mechanism similar to the EC type reaction at the conventional electrode/solution int ...

Elsevier2010

Oxygen reduction catalyzed by a fluorinated tetraphenylporphyrin free base at liquid/liquid interfaces

Hubert Girault, Zdenek Samec, Bin Su, Anne-Clémence Corminboeuf, Manuel Alejandro Méndez Agudelo, Imren Hatay

The diprotonated form of a fluorinated free base porphyrin, namely 5-(p-aminophenyl)-10,15,20-tris(pentafluorophenyl)porphyrin (H(2)FAP), can catalyze the reduction of oxygen by a weak electron donor, namely ferrocene (Fc). At a water/1,2-dichloroethane in ...

American Chemical Society2010

Oxygen and proton reduction by decamethylferrocene in non-aqueous acidic media

Hubert Girault, Zdenek Samec, Bin Su, Anne-Clémence Corminboeuf, Manuel Alejandro Méndez Agudelo, Imren Hatay, Peiyu Ge

Experimental studies and density functional theory (DFT) computations suggest that oxygen and proton reduction by decamethylferrocene (DMFc) in 1,2-dichloroethane involves protonated DMFc, DMFcH+, as an active intermediate species, producing hydrogen perox ...

Royal Society of Chemistry2010

Hydrogen Evolution at Liquid–Liquid Interfaces

Hubert Girault, Bin Su, Raheleh Partovi Nia, Xile Hu, Imren Hatay, Heron Vrubel

Blowing bubbles: Hydrogen evolution by proton reduction with [(C5Me5)2Fe] occurs at a soft interface between water and 1,2-dichloroethane (DCE). The reaction proceeds by proton transfer assisted by [(C5Me5)2Fe] across the water–DCE interface with subsequen ...

Wiley-VCH Verlag GmbH2009

Proton-Coupled Oxygen Reduction at Liquid-Liquid Interfaces Catalyzed by Cobalt Porphine

Hubert Girault, Zdenek Samec, Manuel Alejandro Méndez Agudelo, Imren Hatay, Fengping Li

Cobalt porphine (CoP) dissolved in the organic phase of a biphasic system is used to catalyze O2 reduction by an electron donor, ferrocene (Fc). Using voltammetry at the interface between two immiscible electrolyte solutions (ITIES), it is possible to driv ...

2009