Fuel cells - 4 News from the science department by Helmholtz-Zentrum Berlin für Materialien und Energie

Fuel cells - 4 News from the science department by Helmholtz-Zentrum Berlin für Materialien und Energie

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Freeze casting - a guide to creating hierarchically structured materials

Diverse applications not only in biomedicine, but also in engineering, from new catalysts to highly porous battery electrodes

30-Apr-2024 - Freeze casting is an elegant, cost-effective manufacturing technique to produce highly porous materials with custom-designed hierarchical architectures, well-defined pore orientation, and multifunctional surface structures. Freeze-cast materials are suitable for many applications, from ...

fuel cells batteries battery electrodes
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Fuel Cells: Oxidation processes of phosphoric acid revealed by tender X-rays

Options for increasing the lifetime and efficiency of fuel cells

05-Apr-2024 - The interactions between phosphoric acid and the platinum catalyst in high-temperature PEM fuel cells are more complex than previously assumed. Experiments at BESSY II with tender X-rays have decoded the multiple oxidation processes at the platinum-electrolyte interface. The results indicate that ...

fuel cells Oxidation PEM fuel cells
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Water distribution in the fuel cell made visible in 4D

The analysis opens new possibilities for more efficient and thus more cost-effective fuel cells

09-Jun-2022 - Teams from Helmholtz-Zentrum Berlin (HZB) and University College London (UCL) have visualised the water distribution in a fuel cell in three dimensions and in real time for the first time by evaluating neutron data from the Berlin Experimental Reactor shut down in 2019. The analysis opens new ...

fuel cells computed tomography
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How new materials increase the efficiency of direct ethanol fuel cells

Composite membrane consists of Nafion with embedded nanoparticles

06-May-2020 - A group from Brazil and an HZB team have investigated a novel composite membrane for ethanol fuel cells. It consists of the polymer Nafion, in which nanoparticles of a titanium compound are embedded by the rarely explored melt extrusion process. At BESSY II they were able to observe in detail, ...

fuel cells ethanol fuel cells composite materials

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