Comparative Optic Studies of Cobalt-Based Layered Double Hydroxides with Nitrate and Carbonate Anions and CoII/A1III ratio n = 2, 3, 4
| Autor: | Roman Yu. Babkin, Peter Lemmens, Joaquim M. Vieira, Yurii G. Pashkevich, Irina M. Lukienko, Daniel E. L. Vieira, Dirk Wulferding, Vladimir Gnezdiov, Andrei N. Salak |
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| Rok vydání: | 2021 |
| Předmět: |
Hydrogen bond frequency
Materials science integumentary system Absorption spectroscopy Ion exchange Hydrogen bond Layered double hydroxides Analytical chemistry chemistry.chemical_element engineering.material Quantitative Biology::Subcellular Processes chemistry.chemical_compound symbols.namesake chemistry Layered double hydroxide engineering symbols Carbonate Anion exchange Absorption (chemistry) Raman spectroscopy Hydrogen bond energy Cobalt Physics::Atmospheric and Oceanic Physics |
| Zdroj: | 2021 IEEE 11th International Conference Nanomaterials: Applications & Properties (NAP). |
| Popis: | The variations of Raman and optic absorption spectra of Co-Al layered double hydroxides (LDH) intercalated with nitrate and carbonate anions have been studied as a function of the $Co^{2+}/A1^{3+}$ ratio. It was revealed from the comparative analysis of the hydrogen bond frequencies in Raman spectra and the phonon repetition lines in optic absorption spectra that the increasing $Co^{2+}/A1^{3+}$ ratio results in an enhancement of the anion exchange ability in nitrate LDH and in a suppression of the ability in carbonate LDH. |
| Databáze: | OpenAIRE |
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