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. 2023 Sep 2;14:5363. doi: 10.1038/s41467-023-41097-w

Fig. 1. Morphological characterizations of W/WO2, WO2 and W counterparts.

Fig. 1

Low-magnification STEM images of a W/WO2, d WO2, and f W NPs. High-resolution STEM images of b W/WO2, e WO2, and g W NPs, with the corresponding FFT patterns in the insets. c STEM-EDS mapping of W/WO2 showing the homogeneous distribution of C (blue), O (red) and W (green) elements. h Structural illustrations of W/WO2 (blue and deep blue), WO2 (blue) and W NPs (deep blue) embedded on carbon matrix.