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Dive into the research topics where Johannes Biesdorf is active.

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Featured researches published by Johannes Biesdorf.


Advanced Materials | 2015

Engineered Water Highways in Fuel Cells: Radiation Grafting of Gas Diffusion Layers

Antoni Forner-Cuenca; Johannes Biesdorf; Lorenz Gubler; Per Magnus Kristiansen; Thomas J. Schmidt; Pierre Boillat

A novel method to produce gas diffusion layers with patterned wettability for fuel cells is presented. The local irradiation and subsequent grafting permits full design flexibility and wettability tuning, while modifying throughout the whole material thickness. These water highways have improved operando performance due to an optimized water management inside the cells.


Energy | 2015

Investigation of the liquid water distributions in a 50 cm2 PEM fuel cell: Effects of reactants relative humidity, current density, and cathode stoichiometry

Alfredo Iranzo; Pierre Boillat; Johannes Biesdorf; Antonio Salva


International Journal of Hydrogen Energy | 2014

Liquid water preferential accumulation in channels of PEM fuel cells with multiple serpentine flow fields

Alfredo Iranzo; Pierre Boillat; Johannes Biesdorf; Elvira Tapia; Antonio Salva; J. Guerra


Journal of The Electrochemical Society | 2014

Evaluation of Neutron Imaging for Measuring Phosphoric Acid Distribution in High Temperature PEFCs

Pierre Boillat; Johannes Biesdorf; Pierre Oberholzer; Anders Kaestner; Thomas J. Schmidt


Journal of The Electrochemical Society | 2015

Water Distribution Analysis in the Outer Perimeter Region of Technical PEFC Based on Neutron Radiography

P. Stahl; Johannes Biesdorf; Pierre Boillat; J. Kraft; K. A. Friedrich


Physical Review Letters | 2014

Dual spectrum neutron radiography: identification of phase transitions between frozen and liquid water.

Johannes Biesdorf; Pierre Oberholzer; Felix Bernauer; Anders Kaestner; Peter Vontobel; Eberhard Lehmann; T. Schmidt; Pierre Boillat


Journal of The Electrochemical Society | 2015

Impact of Hydrophobic Coating on Mass Transport Losses in PEFCs

Johannes Biesdorf; Antoni Forner-Cuenca; Thomas J. Schmidt; Pierre Boillat


Journal of The Electrochemical Society | 2016

Advanced Water Management in PEFCs: Diffusion Layers with Patterned Wettability III. Operando Characterization with Neutron Imaging

Antoni Forner-Cuenca; Johannes Biesdorf; Victoria Manzi-Orezzoli; Lorenz Gubler; Thomas J. Schmidt; Pierre Boillat


Journal of The Electrochemical Society | 2016

Advanced Water Management in PEFCs: Diffusion Layers with Patterned Wettability I. Synthetic Routes, Wettability Tuning and Thermal Stability

Antoni Forner-Cuenca; Victoria Manzi-Orezzoli; Johannes Biesdorf; Mario El Kazzi; Daniel Streich; Lorenz Gubler; Thomas J. Schmidt; Pierre Boillat


Journal of The Electrochemical Society | 2015

When Size Matters: Active Area Dependence of PEFC Cold Start Capability

Johannes Biesdorf; P. Stahl; M. Siegwart; Thomas J. Schmidt; Pierre Boillat

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