Modelling and quantification of intergrowth in γ-MnO2by laboratory pair distribution function analysis
2014 ◽
Vol 47
(2)
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pp. 552-560
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Keyword(s):
X Ray
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γ-MnO2is a material formed by random intergrowth of two phases, β-MnO2andR-MnO2. It is demonstrated here on seven γ-MnO2samples that pair distribution function analysis using a conventional X-ray diffraction setup (Bragg–Brentano geometry with a molybdenum anode) allows the quantification of this intergrowth simplyviaa simulation of the actual material by a mixture of β-MnO2andR-MnO2phases. Although this method does not take into account specifically the relaxed distances in the vicinity of the intergrowth zone, it is found to be very robust, accurate and in full agreement with the widely used quantification based on the empirical approach of Chabre & Pannetier [Prog. Solid State Chem.(1995),23, 1–130].
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pp. 156205
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pp. 17171-17176
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pp. 999-1007
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Vol 22
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pp. 18860-18867
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pp. 11232-11233
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2014 ◽
Vol 70
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pp. C872-C872
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Vol 111
(2)
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pp. 714-720
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