Investigation of water transport dynamics in polymer electrolyte membrane fuel cells based on high porous micro porous layers

SS Alrwashdeh, H Markötter, J Haußmann, T Arlt… - Energy, 2016 - Elsevier
In this study, synchrotron X-ray imaging is used to investigate the water transport inside
newly developed GDM (gas diffusion medium) in polymer electrolyte membrane fuel cells …

The neutron imaging instrument CONRAD—post-operational review

N Kardjilov, I Manke, A Hilger, T Arlt, R Bradbury… - Journal of …, 2021 - mdpi.com
The neutron imaging instrument CONRAD was operated as a part of the user program of the
research reactor BER-II at Helmholtz-Zentrum Berlin (HZB) from 2005 to 2020. The …

Analysis of liquid water formation in polymer electrolyte membrane (PEM) fuel cell flow fields with a dry cathode supply

S Gößling, M Klages, J Haußmann, P Beckhaus… - Journal of Power …, 2016 - Elsevier
PEM fuel cells can be operated within a wide range of different operating conditions. In this
paper, the special case of operating a PEM fuel cell with a dry cathode supply and without …

Proton conductivity of perfluorosulfonate ionomers at high temperature and high relative humidity

BR Matos, CA Goulart, EI Santiago, R Muccillo… - Applied physics …, 2014 - pubs.aip.org
The proton transport properties of Nafion membranes were studied in a wide range of
temperature by using an air-tight sample holder able to maintain the sample hydrated at …

Water management in novel direct membrane deposition fuel cells under low humidification

M Breitwieser, R Moroni, J Schock, M Schulz… - International journal of …, 2016 - Elsevier
Polymer electrolyte membrane fuel cells (PEMFCs) fabricated by direct membrane
deposition (DMD) were shown to work even at dry conditions without significant …

Fuel cell research with neutron imaging at Helmholtz Centre Berlin

I Manke, H Markötter, T Arlt, C Tötzke, M Klages… - Physics Procedia, 2015 - Elsevier
This paper demonstrates the capabilities of the new instrument CONRAD II at Helmholtz
Centre Berlin for the investigation of fuel cells. The performance gain of CONRAD II with …

A dedicated compression device for high resolution X-ray tomography of compressed gas diffusion layers

C Toetzke, I Manke, G Gaiselmann, J Bohner… - Review of scientific …, 2015 - pubs.aip.org
We present an experimental approach to study the three-dimensional microstructure of gas
diffusion layer (GDL) materials under realistic compression conditions. A dedicated …

Multiscale Tomography-Based Analysis of Polymer Electrolyte Fuel Cells: Towards a Fully Resolved Gas Diffusion Electrode Reconstruction

M Klingele, R Moroni, S Vierrath… - Journal of …, 2018 - asmedigitalcollection.asme.org
The microstructure of a fuel cell electrode largely determines the performance of the whole
fuel cell system. In this regard, tomographic imaging is a valuable tool for the understanding …

Neutron diffraction study of engineering materials subjected to complex loadings

JR Bunn - 2014 - trace.tennessee.edu
No studies using diffraction have specifically aimed to study the (hkl) specific shear strain of
lattice planes to the application of pure shear due to applied torsion. Also no measures of …

Neutron tomography in archaeology

N Kardjilov, A Hilger, I Manke, V Benfante… - Materials …, 2015 - degruyter.com
The use of non-invasive and non-destructive measurement techniques is of fundamental
importance for the investigation of samples of great historical, cultural and artistic value …