Formation and annealing of micropores in hematite.
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1995
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In iron oxide powders positrons are trapped in the surface layers and
the value of the S-parameter is an indicator of the total specific surface,
including external surface and internal surfaces of micropores. The evolution
of micropores is followed when α-FeOOH is thermally decomposed into
α-Fe2O3 . It is shown that the micropore formation is not linked to the decomposition
process, but that they also form in hematite synthesized from
a ferrihydrite precursor in aqueous solution.
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DAUWE, C. et al. Formation and annealing of micropores in hematite. Acta Physica Polonica A, v. 88, p. 119-123, 1995. Disponível em: <http://przyrbwn.icm.edu.pl/APP/PDF/88/a088z1p16.pdf>. Acesso em: 20 abr. 2017.