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	Provedor de dados Rev. Bras. Ciênc. Solo (1) Autor Carducci,Michael D. (1) Chaves,Lucia Helena Garófalo (1) Chorover,Jon (1) Curry,Joan Elizabeth (1) Stone,David Andrew (1) Palavra-chave Isomorphous substitution (1) LDH (1) Layered double hydroxide (1) X ray diffraction (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2009 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Nickel incorporation in Fe(II, III) hydroxysulfate Green Rust: effect on crystal lattice spacing and oxidation products Rev. Bras. Ciênc. Solo Chaves,Lucia Helena Garófalo; Curry,Joan Elizabeth; Stone,David Andrew; Carducci,Michael D.; Chorover,Jon. Ni(II)-Fe(II)-Fe(III) layered double hydroxides (LDH) or Ni-containing sulfate green rust (GR2) samples were prepared from Ni(II), Fe(II) and Fe(III) sulfate salts and analyzed with X ray diffraction. Nickel is readily incorporated in the GR2 structure and forms a solid solution between GR2 and a Ni(II)-Fe(III) LDH. There is a correlation between the unit cell a-value and the fraction of Ni(II) incorporated into the Ni(II)-GR2 structure. Since there is strong evidence that the divalent/trivalent cation ratio in GR2 is fixed at 2, it is possible in principle to determine the extent of divalent cation substitution for Fe(II) in GR2 from the unit cell a-value. Oxidation forms a mixture of minerals but the LDH structure is retained if at least 20 % of the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Isomorphous substitution; Layered double hydroxide; LDH; X ray diffraction. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000500005 Registros recuperados: 1 Primeira ... 1 ... Última

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