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Fig. 10 | Geochemical Transactions

Fig. 10

From: Cryptomelane formation from nanocrystalline vernadite precursor: a high energy X-ray scattering and transmission electron microscopy perspective on reaction mechanisms

Fig. 10

TEM imaging of cryptomelane domains in type 4 crystals of MndBi3_10y. a, b TEM observations of two different crystals type 4 from sample MndBi3_10y. In both crystals, a tunnel-like structure is observed. It mainly has a tunnel size of 6.9 Å × 6.9 Å, but structures having heterogeneous tunnel size are also observed (arrow with dotted line). Areas with dotted lines indicate zones corresponding to the enlarged pictures (bottom right of a and top left of b)

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Geochemical Transactions

ISSN: 1467-4866

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