No exact match found for Vogt U. F, using Vogt U F instead...
Université de Fribourg

Electrochemical characterization of porous diaphragms in development for gas separation

Stojadinović, J. ; Wiedenmann, Daniel ; Gorbar, M. ; Mantia, F. La ; Suarez, L. ; Herzog, V. Zakaznova ; Vogt, U. F. ; Grobéty, Bernard ; Züttel, Andreas

In: ECS Electrochemistry Letters, 2012, vol. 1, no. 4, p. F25-F28

The alkaline electrolyzer industry is facing the imminent necessity of replacing the asbestos diaphragms with a separator made of a new environmentally friendly material. The influence of a diaphragm's material and porosity on the ionic conductivity was studied for asbestos, zirconium dioxide, wollastonite and olivine diaphragms. Developed electrochemical impedance spectroscopy (EIS) set-up with...

Université de Fribourg

Complementary techniques for solid oxide electrolysis cell characterisation at the micro- and nano-scale

Wiedenmann, Daniel ; Hauch, A. ; Grobéty, Bernard ; Mogensen, M. ; Vogt, U.F.

In: International Journal of Hydrogen Energy, 2009, p. -

High-temperature steam electrolysis by solid oxide electrolysis cells (SOEC) is a method with great potential for transforming clean and renewable energy from non-fossil sources to synthetic fuels such as hydrogen, methane or dimethyl ether, which have been identified as promising alternative energy carriers. With the same technology, fuel gas can be used in a very efficient way to reconvert...

Université de Fribourg

WDX studies on ceramic diffusion barrier layers of metal supported SOECs

Wiedenmann, Daniel ; Vogt, U. F. ; Soltmann, C. ; Patz, O. ; Schiller, G. ; Grobéty, Bernard

In: Fuel Cells, 2009///doi: 10.1002/fuce.200800118

Solid oxide electrolyser cells (SOECs) have great potential for efficient and economical production of hydrogen fuel. Element diffusion between the Ni-cermet electrode and the metal substrate of metal supported cells (MSC) is a known problem in fuel cell and electrolysis technology. In order to hinder this unintentional mass transport, different ceramic diffusion barrier layers (DBLs) are...