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György Foti

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Related publications (36)

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Electrochemically Induced Oscillations of C2H4 Oxidation Over Thin Sputtered Rh Catalyst Films

Christos Comninellis, György Foti

The electrochem. promoted induction of self-sustained catalytic rate and potential oscillations during C2H4 oxidn. was studied over sputtered Rh thin (40 nm catalyst films interfaced with ZrO2 (8 mol% Y2O3)). The reaction rate oscillates simultaneously wit ...

2005

Method and apparatus for carrying out electrochemically promoted reactions

Christos Comninellis, György Foti

The method and app. for carrying out electrochem. promoted catalytic reactions, i.e., catalytic reactions where the catalytic rate and selectivity is modified by applying an elec. current or potential between the porous catalyst film which is deposited on ...

(University of Patras, Greece).2005

Charge storage at the Pt/YSZ interface

Christos Comninellis, György Foti, Cyril Falgairette, Arnaud Jaccoud

The electrochemical behavior of Pt/YSZ electrodes in oxygen containing atmosphere at 450 A degrees C has been investigated by double-step chronoamperometry and programmed linear sweep cyclic voltammetry. The response of the O-2(g),Pt/YSZ system in these ex ...

Springer US2009

Boron-doped diamond (BDD)-supported Pt/Sn nanoparticles synthesized in microemulsion systems as electrocatalysts of ethanol oxidation

Christos Comninellis, György Foti, Guillaume Siné

Bimetallic Pt/Sn nanoparticles, synthesized by the microemulsion method, have been investigated once deposited on a boron-doped diamond (BDD) substrate electrode. Nanoparticles are in the nano-size domain and their effective composition corresponds to thei ...

2006

Electrochemical promotion of CO combustion over non-percolated Pt particles supported on YSZ using a novel bipolar configuration

Christos Comninellis, György Foti, Wolfgang Harbich, Michael Hugentobler, Chun Xia

The electrochemical promotion of CO combustion over nano-dispersed Platinum particles supported on yttria stabilized zirconia (YSZ) is investigated at 300 degrees C under high vacuum conditions. By polarizing the nanoparticles, we were able to enhance the ...

Elsevier2011

Electrochemical and morphological characterization of gold nanoparticles deposited on boron doped diamond electrode

Christos Comninellis, György Foti, Bahaa El Roustom

2009

Microemulsion-synthesized Pt/Ru/Sn nanoparticles on BDD for alcohol electrooxidation

Christos Comninellis, György Foti, Guillaume Siné

Ternary Pt-based nanoparticles (nominal composition Pt80Ru10Sn10 ) were synthesized via the microemulsion route and deposited onto boron-doped diamond (BDD) electrode. The particle size measured by transmission electron microscopy was in the 2–5nm diam ran ...

2007

Electrochemically stable gold nanoclusters in HOPG nanopits

György Foti, Wolfgang Harbich, Michael Hugentobler

2009

Electrochemical promotion of ethylene oxidation over Rh catalyst thin films sputtered on YSZ and TiO2/YSZ supports

Christos Comninellis, György Foti

The effect of electrochem. promotion of catalysis or nonfaradaic electrochem. modification of catalytic activity or electropromotion was studied for the model reaction of ethylene oxidn. on sputter-coated Rh films. The thin (40 nm) Rh films were deposited ...

2005

Investigation of the Pt/YSZ interface at low oxygen partial pressure by solid electrochemical mass spectroscopy under high vacuum conditions

Christos Comninellis, György Foti, Wolfgang Harbich, Cyril Falgairette, Chun Xia

The Pt/YSZ interface was investigated at low oxygen partial pressure under high vacuum (HV) conditions at 400 A degrees C. Two different electrochemical techniques were coupled to mass spectrometric gas analysis using a new solid electrochemical mass spect ...

Springer Netherlands2010

Electrochemical modification of the catalytic activity of TiO2/YSZ supported rhodium films

Christos Comninellis, György Foti

The electrochemical activation of ethylene oxidation was studied over rhodium catalysts of different thickness (40, 100 and 160 nm) sputtered on top of a thin layer of TiO2 deposited on YSZ. The strong relationship between catalytic activity and oxidation ...

Springer, Springer-Verlag2007

Oxygen storage in O2/Pt/YSZ cell

György Foti, Cyril Falgairette

2009

Preparation of gold nanoparticles by heat treatment of sputter deposited gold on boron-doped diamond film electrode

Christos Comninellis, György Foti, Bahaa El Roustom

A novel two-step method was developed to prep. gold nanoparticles on boron-doped diamond (BDD) electrode. It consisted of sputter deposition of max. 15 equiv monolayers of gold, followed by a heat treatment at 400-600 Deg in air. The as-sputtered gold depo ...

Elsevier2005

The importance of electrode material in environmental electrochemistry: Formation and reactivity of free hydroxyl radicals on boron-doped diamond electrodes

Christos Comninellis, György Foti, Agnieszka Kapalka

2009

Effectiveness factor of isopropanol oxidation on IrO2 based electrodes of different loading

György Foti

The influence of IrO2 loading on the effectiveness factor Et of the electrochemical oxidation of isopropanol was investigated A model has been proposed based on three main reactions electrochemical IrO2 oxidation to IrO3 chemical oxidation of the organic c ...

Elsevier2010

A DEMS study of methanol and formic acid oxidation on boron-doped diamond electrode

Christos Comninellis, György Foti, Agnieszka Kapalka

The electrochemical oxidation of methanol and formic acid in 1 M HClO4 is studied on boron-doped diamond electrode using differential electrochemical mass spectrometry (DEMS). DEMS is used to identify products and intermediates of the reaction monitored on ...

2009

Charge storage at Pt/YSZ interface as the origin of 'permanent' electrochemical promotion of catalysis

György Foti

Tuning of the catalytic reaction rate by electric polarization of the interface between an electron conducting catalyst and an ion conducting support, called electrochemical promotion of catalysis (EPOC), is most often fully reversible. Its state-of-the-ar ...

2009

Electrochemical investigation of platinum electrode in solid electrolyte cell

Christos Comninellis, György Foti, Arnaud Jaccoud

Electro-oxidn. of platinum film electrode deposited on yttria-stabilized zirconia (YSZ) is examd. in situ using potential programmed voltammetry at 450 DegC in oxygen contg. atm. Under prolonged anodic oxidn. different sorts of oxidized species are formed ...

2006

Effectiveness factor of fast (Fe3+/Fe2+), moderate (Cl2/Cl-) and slow (O2/H2O) redox couples using IrO2 based electrodes of different loading

Christos Comninellis, Rolf Wüthrich, György Foti

Springer Netherlands2009

Electrochemically induced mineralization of organics by molecular oxygen on boron-doped diamond electrode

Christos Comninellis, György Foti, Agnieszka Kapalka

Elsevier2008