Influence of metal components in Hopeite films on IR and laser Raman spectra

Stacked Lamellar Matrix Enabling Regulated Deposition and Superior Thermo‐Kinetics for Advanced Aqueous Zn‐Ion System under Practical Conditions

“…Fourier transform infrared spectroscopy (FTIR) analysis of SLM-Zn surface (Figure S4a, Supporting Information) also proved the existence of ZnF 2 (2933, 1662, and 1456 cm −1 ) and Zn 3 (PO 4 ) 2 (1112, 950, and 579 cm −1 ). [31,32] From Raman analysis (Figure S4b, Supporting Information), strong characteristic peaks assigned to ZnF 2 at 68, 360, and 520 cm −1 can be clearly detected, [33] and these obvious peaks at 571, 888, 1099, and 1147 cm −1 were related to the formation of Zn 3 (PO 4 ) 2 . [22,34] It is noted that the desirable polygonal structure of SLM parallel to the substrate has been successfully constructed with a thickness of ≈738 nm, as intuitively indicated by scanning electron microscopy (SEM) images (Figure 1d-f).…”

Chemistry of a single-step phosphate/paint system

“…min, the 138-67 system sprayed on a "Q" panel and then air-dried, and the 138-67 system sprayed on a "Q" panel and then thermal cured at 120 °C for 10 min are shown in parts A, B, and C of Figure 2, respectively. To illustrate the iron phosphate reaction (Figure 2A), we observed a strong band at 1092 cm"1 corresponding to v3 vibration mode in P043" for the P=0/Fe complex (Carter et al, 1986) and also a broad band at 623 cm"1 associated with i>4 vibration mode in P043" (Sato and Minami, 1989). This observation of vibration modes in P043" provides no indication about the type of iron phosphates in the film composition.…”

“…This observation of vibration modes in P043" provides no indication about the type of iron phosphates in the film composition. The reaction of H3P04 with "Q" panel surface in the 138-67 system should show a decrease in the IR spectral intensity at 2400,1250, and 1015 cm"1 corresponding to the vibration modes of H3P04 and a possible alteration in the IR spectral intensity at 1200,1092, and 623 cm"1 resulting from the basic vibration modes of P043" (Sato and Minami, 1989). In Figure 2B,C, the spectral peak at 2400 cm"1 has disappeared; the spectral transition at 1092 cm"1 seems to pick up its intensity relative to the nearby polymer bands at 1100, 1145, and 1170 cm"1, whereas that at 1015 cm"1 reduces its intensity as compared to those in Figure 1B,C.…”