Fig. 3: Investigations of the structure and electronic state of Au-TOASiW9. | Nature Communications

Fig. 3: Investigations of the structure and electronic state of Au-TOASiW9.

From: Ultra-stable and highly reactive colloidal gold nanoparticle catalysts protected using multi-dentate metal oxide nanoclusters

Fig. 3

a Zeta potential of Au-TOASiW9, Au-TOASiW10, Au-TOASiW11, Au-TOASiW12, Au-TOAB and Au-dodecanethiol in toluene. b Representative atomic-resolution annular dark field scanning transmission electron microscopy (ADF-STEM) image of Au-TOASiW9. c EDS elemental mapping images of Au-TOASiW9. d XPS spectra of various ligand-protected gold nanoparticles and bulk Au (the arrow indicates the trend of changes in binding energy). e W L3-edge XANES spectra with associated second derivatives of TOASiW9 and Au-TOASiW9. f k3-Weighted W L3-edge EXAFS spectra of TOASiW9 and Au-TOASiW9. g, Relative energy of SiW9-protected gold nanoparticles and models of the optimised structures for different orientations of SiW9.

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