Fig. 3: 1H MAS NMR spectra of PAsp-stabilized ACC. | Nature Communications

Fig. 3: 1H MAS NMR spectra of PAsp-stabilized ACC.

From: Colloidal pathways of amorphous calcium carbonate formation lead to distinct water environments and conductivity

Fig. 3

a Directly and 13C-carbonate detected 1H MAS NMR spectra of PAsp-stabilized, 10% 13C-carbonate ACC (PAsp_disACC), with accompanying simulations, at a spinning frequency of 10 kHz and room temperature. The 1Hs from PAsp do not significantly alter the shape of the directly detected spectra, see Supplementary Fig. 12. The MAS NMR probe, however, gives rise to a broad 1H NMR background signal, which has been removed from the directly detected 1H spectrum (black) following a procedure outlined in the Supplementary information (Supplementary Fig. 13). b Central region of the directly detected 1H NMR spectrum of 100% 13C-carbonate ACC stabilized by PAsp (PAsp_disACC), at a spinning frequency of 10 kHz and room temperature.

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