Using scanning electron microscopy (SEM) and transmission electron microscopy (TEM), the researchers have been able to show how the electrode degrades during use, when performing a standardised stress test. (IMAGE)
Caption
Using scanning electron microscopy (SEM) and transmission electron microscopy (TEM), the researchers have been able to show how the electrode degrades during use, when performing a standardised stress test. It is clear how cracks grow in the electrode film in the upper two rows. In the lower row, carbon substrates and platinum particles are visible. During use, the carbon decreases in volume and changes shape, while the platinum particles grow. The graphs on the right show how the data correlates with the electrochemical performance.
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Chalmers University of Technology | Linnéa Strandberg
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