Concept

Électrode de diffusion de gaz

Publications associées (87)

A cell-electrode interface noise model for high-density microelectrode arrays

Alexandre Schmid, Yusuf Leblebici, Neil Joye

A cell-electrode interface noise model is developed which is dedicated to enable the co-simulation of the cell-electrode electrical characteristics, along with the electronics of novel CMOS-based MEA. The electrode noise is investigated for Pt and Pt black ...

IEEE2009

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

Simulation of thermal stresses in anode-supported solid oxide fuel cell stacks. Part II: Loss of gas-tightness, electrical contact and thermal buckling

Daniel Favrat, Jan Van Herle, Zacharie Wuillemin, Arata Nakajo

Structural stability issues in planar solid oxide fuel cells arise from the mismatch between the coefficients of thermal expansion of the components. The stress state at operating temperature is the superposition of several contributions, which differ depe ...

2009

Gallium assisted plasma enhanced chemical vapor deposition of silicon nanowires

Anna Fontcuberta i Morral, Sonia Conesa Boj, Libo Yu, Père Roca i Cabarrocas

Silicon nanowires have been grown with gallium as catalyst by plasma enhanced chemical vapor deposition. The morphology and crystalline structure has been studied by electron microscopy and Raman spectroscopy as a function of growth temperature and catalys ...

Institute of Physics2009

Quantitative study of anode microstructure related to SOFC stack degradation

Jan Van Herle, Aïcha Hessler-Wyser, Antonin Faes

As the performances of Solid Oxide Fuel Cells (SOFC) get attractive, long term degradation becomes the main issue for this technology. Therefore it is essential to localise the origin of degradation and to understand its processes in order to find solution ...

Springer-Verlag2008

Quantitative study of anode microstructure related to SOFC stack degradation

Jan Van Herle, Aïcha Hessler-Wyser, Antonin Faes

2008

Design of 500 W Class SOFC Stack with Homogeneous Cell Performance

Jan Van Herle, Stefan Diethelm, Zacharie Wuillemin, Arata Nakajo, Nordahl Autissier, Emily Thorn

Our planar SOFC stacking technology uses unprofiled metallic interconnects (MIC) and thin cells of tape cast anode supported YSZ. The key element is the gas diffusion layer (GDL) between cell and MIC, which consists of so-called SOFConnex™. Using square ce ...

The Electrochemical Society2007

Design of 500 W Class SOFC Stack with Homogeneous Cell Performance

Emily Thorn

2007

Proton diffusion in amorphous SiO2 and hafnium silicate by Ab Initio molecular dynamics

Alfredo Pasquarello

We study proton diffusion in amorphous SiO2 and hafnium silicates at the atomic scale. In amorphous SiO2, ab initio molecular dynamics suggest that the dominant atomic process consists in cross-ring interoxygen hopping assisted by network vibrations. In ha ...

2007

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

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