Figure (IMAGE)

The University of Osaka

Figure

Caption

a) HAADF-STEM images of replica films prepared from samples #1, #2, #11, and #13 of tetra-<i>n</i>-butylammonium 3-methylpentanoate (TBA-3MP) aqueous solutions. In samples #11 and #13, silver nanoparticles 5-10 nm across were observed. In sample #13, which included both silver nanoparticles and F<sup>-</sup> anions, 10-30 nm clusters existed even at 281 K. With further decreases in temperature, the number density of the clusters increased, and then TBA-3MP semiclathrate hydrate crystallized with a small degree of supercooling. b) SE-STEM image of a different area of the same film as "13-a" in panel a). Clusters of size 10-30 nm envelop a silver nanoparticle (black dots indicated by red arrows).

Credit

T. Sugahara/Osaka University and H. Machida/Panasonic Corporation

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