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November 2014

Fig. A) shows a scanning electron microscopy image of a sodium superoxide crystal, grown on a carbon fiber of the positive electrode of a sodium oxygen battery during discharge. Fig. B) shows the x-ray diffraction pattern of such a crystal, as measured by Matthias F. Groh (RG Prof. Ruck, TU Dresden). (Picture submitted by Dr. Pascal Hartmann.)

November 2014
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