Structure of synthetic monoclinic Na-rich birnessite and hexagonal birnessite; I, Results from X-ray diffraction and selected-area electron diffraction

A. Drits, Victor; Silvester, Ewen; I. Gorshkov, A.; Manceau, Alain

doi:10.2138/am-1997-9-1012

Public

Structure of synthetic monoclinic Na-rich birnessite and hexagonal birnessite; I, Results from X-ray diffraction and selected-area electron diffraction

Published in American Mineralogist • Oct 1, 1997

Authors:

Victor A. Drits

Ewen Silvester

A. I. Gorshkov

Abstract

Synthetic Na-rich birnessite (NaBi) and its low pH form, hexagonal birnessite (HBi), were studied by X-ray and selected-area electron diffraction (XRD, SAED). SAED patterns were also obtained for synthetic Sr-exchanged birnessite (SrBi) microcrystals in which Sr was substituted for Na. XRD confirmed...

Subject

Birnessite

Monoclinic crystal system

Diffraction

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