Fig. 2. Structural characterization by PXRD, nitrogen sorption experiments and XPS. (a) PXRD spectra of PMo12, 1, 2 and 3. (b) Nitrogen sorption isotherms for 1, 2, and 3. (c) The corresponding pore size distributions of 1, 2 and 3. (d) Survey XPS spectra of 1, 2 and 3. (e–i) High resolution deconvoluted XPS spectra for 3, showing Mo 3d, P 2p, C 1s, N 1s and O 1s.
