| Autor: |
Pierrick Durand, Romain Coustel, Aurélien Renard, Damien Cornu, Christian Ruby, Cédric Carteret |
| Přispěvatelé: |
Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Cristallographie, Résonance Magnétique et Modélisations (CRM2), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: |
2020 |
| Předmět: |
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| Popis: |
Iron and cobalt monometallic Layered Double Hydroxide (LDH), combining divalent and trivalent cations of the same chemical element, are commonly used respectively for nitrate reduction and oxygen evolution reaction. This article reports the first synthesis of a LDH using only manganese as metallic ion. X-Ray diffractograms, infrared and Raman spectra show that the structure obtained through the oxidation of a basic Mn II salt with persulfate is comparable to the structure of Fe-LDH also known as Green Rust. XPS shows that in this solid coexist Mn II and Mn III states. Thermodynamic considerations predict that this solid can reduce nitrate into gaseous nitrogen without further reduction into ammonium or ammonia unlike what is observed for Fe-LDH. Keywords Mn 6 (OH) 12 SO 4 • LDH • Mn • Green rust • Mn basic salts • XPS • XRD • Raman • IR • SEM • Monometallic LDH • Water remediation • Nitrate reduction • Pourbaix diagram • Thermodynamic calculation |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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