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Published in: Journal of Materials Science 19/2018

27-06-2018 | Mechanochemical Synthesis

Synthesis, characterization and in situ monitoring of the mechanochemical reaction process of two manganese(II)-phosphonates with N-containing ligands

Authors: Irina Akhmetova, Konstantin Schutjajew, Manuel Wilke, Ana Buzanich, Klaus Rademann, Christina Roth, Franziska Emmerling

Published in: Journal of Materials Science | Issue 19/2018

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Abstract

Two divalent manganese aminophosphonates, manganese mono(nitrilotrimethylphosphonate) (MnNP3) and manganese bis(N-(carboxymethyl)iminodi(methylphosphonate)) (Mn(NP2AH)2), have been prepared by mechanochemical synthesis and characterized by powder X-ray diffraction (PXRD). The structure of the novel compound Mn(NP2AH)2 was determined from PXRD data. MnNP3 as well as Mn(NP2AH)2 exhibits a chain-like structure. In both cases, the manganese atom is coordinated by six oxygen atoms in a distorted octahedron. The local coordination around Mn was further characterized by extended X-ray absorption fine structure. The synthesis process was followed in situ by synchrotron X-ray diffraction revealing a three-step reaction mechanism. The as-prepared manganese(II) phosphonates were calcined on air. All samples were successfully tested for their suitability as catalyst material in the oxygen evolution reaction.

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Appendix
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Metadata
Title
Synthesis, characterization and in situ monitoring of the mechanochemical reaction process of two manganese(II)-phosphonates with N-containing ligands
Authors
Irina Akhmetova
Konstantin Schutjajew
Manuel Wilke
Ana Buzanich
Klaus Rademann
Christina Roth
Franziska Emmerling
Publication date
27-06-2018
Publisher
Springer US
Published in
Journal of Materials Science / Issue 19/2018
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-018-2608-6

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