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Manuel Alejandro Méndez Agudelo

Cette personne a quitté l’EPFL

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Publications associées (35)

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

Hubert Girault, Manuel Alejandro Méndez Agudelo, Peiyu Ge, Imren Hatay

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

Peptide-Phospholipid Complex Formation at Liquid-Liquid Interfaces

Hubert Girault, Bin Su, Manuel Alejandro Méndez Agudelo, Michel Prudent

Two peptides known to interact with receptors embedded in cell membranes, angiotensin III (AngIII) and Leuenkephalin(LeuEnk), were studied electrochemically at the interface formed between two immiscible electrolyte solutions modified by an adsorbed monola ...

2008

Controlling the specific enrichment of multi-phosphorylated peptides on oxide materials: aluminium foil as a target plate for laser desorption ionization mass spectrometry

Hubert Girault, Liang Qiao, Manuel Alejandro Méndez Agudelo, Mohamad Hojeij, Hongyan Bi

A specific multi-phosphopeptide enrichment method is presented to complement current phosphopeptide isolation strategies that normally bias mass spectrometry analysis towards the detection of mono-phosphopeptides. An adsorption model is developed that show ...

2010

Artificial Photosynthesis at Soft Interfaces

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

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

Voltammetry for surface-active ions at polarisable liquid|liquid interfaces

Hubert Girault, Bin Su, Manuel Alejandro Méndez Agudelo

Adsorption of charged species at the interface between two immiscible electrolyte solutions (ITIES) is simulated taking into account both the mutual influence between the potential dependent surface excess charge and the potential distribution between the ...

2009

Chaotropic Agents Boosting the Performance of Photo-ionic Cells

Hubert Girault, Pekka Eero Peljo, Heron Vrubel, Manuel Alejandro Méndez Agudelo, Astrid Johana Olaya Avendano, Jelissa Risse

Photo-ionic cells are a simple and scalable concept for direct solar energy storage, where the redox fuels produced by the photoreaction are separated in different phases to prevent recombination. The presence of chaotropic agents such as urea, that break ...

Amer Chemical Soc2015

Photo-Ionic Cells: Two Solutions to Store Solar Energy and Generate Electricity on Demand

Hubert Girault, Pekka Eero Peljo, Heron Vrubel, Manuel Alejandro Méndez Agudelo, Micheal Diarmaid Scanlon

A solar energy conversion concept based on the photo-induced separation of a pair of redox species in a biphasic liquid cell is presented. The redox pair is subsequently discharged in an electrochemical flow cell to generate electricity. To illustrate this ...

Amer Chemical Soc2014

Biphasic water splitting by osmocene

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

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

Charging and Discharging at the Nanoscale: Fermi Level Equilibration of Metallic Nanoparticles

Hubert Girault, Pekka Eero Peljo, Manuel Alejandro Méndez Agudelo, Evgeny Smirnov, Micheal Diarmaid Scanlon

The redox properties of metallic nanoparticles are discussed, in particular the relationships between excess charge, size and the Fermi level of the electrons. The redox potentials are derived using simple electrostatic models to provide a straightforward ...

Royal Soc Chemistry2015

Photoproduction of Hydrogen by Decamethylruthenocene Combined with Electrochemical Recycling

Hubert Girault, Pekka Eero Peljo, Manuel Alejandro Méndez Agudelo, Micheal Diarmaid Scanlon, Laurent Alexis Clément Vannay, Grégoire Clément Gschwend, Lucie Josette Renée Rivier

The photoinduced hydrogen evolution reaction (HER) by decamethylruthenocene, Cp2RuII (Cp=C5Me5), is reported. The use of a metallocene to photoproduce hydrogen is presented as an alternative strategy to reduce protons without involving an additional phot ...

Wiley-Blackwell2017

Photoreduction of CO2 Using [Ru(bpy)2(CO)L]n+ Catalysts in Biphasic Solution/Supercritical CO2 Systems

Hubert Girault, Manuel Alejandro Méndez Agudelo, Patrick Voyame, Kathryn Ellen Toghill

The photosensitized reduction of carbon dioxide by the molecular catalyst [Ru(bpy)2(CO)L] is studied in a biphasic liquid-condensed gas system. Increasing pressure is shown to enhance the initial production rate and turnover number of the catalyst before d ...

Amer Chemical Soc2013

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

Hubert Girault, Bin Su, 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

Benzothiadiazole Aryl-amine Based Materials as Efficient Hole Carriers in Perovskite Solar Cells

Mohammad Khaja Nazeeruddin, Manuel Alejandro Méndez Agudelo, Cristina Roldán Carmona

Four hole transport materials (HTMs) based on a benzothiadiazole (BT) central core have been synthesized and successfully employed in triple-cation mixed-halide perovskite solar cells (PSCs), reaching 18.05% solar to energy conversion efficiency. The synth ...

AMER CHEMICAL SOC2020

Minimization of Carrier Losses for Efficient Perovskite Solar Cells through Structural Modification of Triphenylamine Derivatives

Mohammad Khaja Nazeeruddin, Manuel Alejandro Méndez Agudelo, Cristina Roldán Carmona

Three hole transport materials (HTMs) based on a substituted triphenylamine moiety have been synthesized and successfully employed in triple-cation mixed-halide PSCs, reaching efficiencies of 19.4 %. The efficiencies, comparable to those obtained using spi ...

Wiley-VCH Verlag GmbH2020

Electrochemistry in Supercritical Fluids: A Mini Review

Manuel Alejandro Méndez Agudelo, Patrick Voyame, Kathryn Ellen Toghill

A brief overview of the literature relating to electrochemical studies and processes undertaken in supercritical fluids is presented. This review mostly concerns carbon dioxide and hydrofluorocarbons, given the accessibility of their supercritical states, ...

Elsevier2014