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Structure of monoclinic Na-rich birnessite and hexagonal birnessite: I. Results from X-ray diffraction and selected-area electron diffraction
Structure monoclinic Na-rich birnessite hexagonal birnessite X-ray diffraction selected-area electron diffraction
2012/4/6
Onthebasisoftheseexperimentalobervations,structuralmodelsforNaBiandHBiareproposed.NaBiconsistsofalmostvacancy-freeMnoctahedrallayers.Thedeparturefrom
thehexagonalsymmetryoflayersiscausedbytheJahn-Tel...
Structure of synthetic monoclinic Na-rich birnessite and hexagonal birnessite: II. Results from chemical studies and EXAFS spectroscopy
synthetic monoclinic Na-rich birnessite hexagonal birnessite II. Results chemical studies EXAFS spectroscopy
2012/4/6
SolutionchemicaltechniqueswereusedtostudytheconversionofsyntheticNa-richbuserite(NaBu)tohexagonal(H-exchanged)birnessite(HBi)atlowpH.Thelow-pH
reactionisbroadlycharacterizedbytheexchangeofstructuralN...