Fig. 3. Closer view of the peaks in the PDFs indicating edge- (ca. 3.3 Å) and corner-sharing (ca. 3.6–3.7 Å) for the (a) MnWO4, (b) FeWO4, (c) CoWO4 and (d) NiWO4 syntheses. (e) The ratio between the integrated intensities of these peaks with heating time. The vertical lines show the time when the MnWO4 and FeWO4 products are formed. The grey area shows the ES/CS range where the intermediate phase is observed.
