Fig. 3: 27Al NMR and XAFS characterization of Ag/nano-Al2O3 and analysis of Ag anchoring. | Nature Communications

Fig. 3: 27Al NMR and XAFS characterization of Ag/nano-Al2O3 and analysis of Ag anchoring.

From: Resolving the puzzle of single-atom silver dispersion on nanosized γ-Al2O3 surface for high catalytic performance

Fig. 3: 27Al NMR and XAFS characterization of Ag/nano-Al2O3 and analysis of Ag anchoring.The alternative text for this image may have been generated using AI.

a Normalized 27Al MAS NMR spectra of nano-Al2O3 and 1 wt% Ag/nano-Al2O3. b, c Ag-K edge XANES and EXAFS spectra of standard samples and Ag/nano-Al2O3 with different Ag loadings (2, 4, 8%) (Fourier transform k range 2.9-14.3 Å−1). d A diagram showing possible formation process of Al3+penta from Al3+octa through dehydroxylation on Al2O3. e A diagram showing possible process of Ag anchoring through interaction between Ag and Al–OH.

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