Ferritization of Ni2+ ions in mixed hydroxide suspensions

Structural, Textural and Acid–Base Properties of Nano-Sized NiFe2O4 Spinel Catalysts

“…For the CP compounds, the band, observed at 1080 cm -1 , is attributed, in agreement with our XRD analysis, to the carbonate species. The Raman spectrum of pure sample describes the same features that those found in the literature [21][22][23].…”

Ir- and Ru-doped layered double hydroxides as affordable heterogeneous catalysts for electrochemical water oxidation

“…It is known that variations of the FT-IR peak positions can be diagnostic of metal incorporation in LDHs. [72][73] Here, the small but appreciable shift of the O-metal stretching band towards higher wave numbers, proceeding from B to Ir-1 and Ru, is consistent with the incorporation of tiny amounts of heavy atoms like Ir and Ru, which results in higher energies required for this stretching mode. SEM images (Fig.…”

Highly Active Mixed-Metal Nanosheet Water Oxidation Catalysts Made by Pulsed-Laser Ablation in Liquids

“…The band at 1340 cm −1 was further evidence of interstitial nitrates. 33 Figure S9: Infrared spectra of catalysts 5 (red) and 6 (blue) with band assignments. The inset shows a magnification of the nitrate (ν3) region: open circles, data; thick lines, overall fits; thin lines Gaussian peak fits.…”

“…22,33 Two materials were used in this analysis, (1) almost exclusively Ni(OH)2 and (2) one of mixed (Ni,Fe) composition, due to aging in KOH for 72 hours. The compositions of these materials were determined by XRD and Mössbauer spectroscopy in the original study.…”

“…The compositions of these materials were determined by XRD and Mössbauer spectroscopy in the original study. 33 The IR spectra were digitized from an electronic (PDF) copy of the original manuscript using UN-SCAN-IT v.5.2 software. Transmission values (digitized y-values) were aligned with the wavelength (digitized x-values) for both spectra, omitting points where digitization was not complete for both.…”