Search Results - "Melo, D.M.Araújo"

Preparation and characterization of terbium palygorskite clay as acid catalyst by Melo, D.M.Araújo, Ruiz, J.A.C, Melo, M.A.F, Sobrinho, E.V, Schmall, M

“…Palygorskite clays containing 5% and 10% terbium (W/W) were prepared by ion exchange from acid-leached natural clay. Samples were calcined at 523, 573, 623 and…”
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Bis(pentamethylene)urea complexes of the lanthanide nitrates: synthesis, characterization, properties by de Souza, H.K.S., Pedrosa, A.M.Garrido, Marinho, E.P., Batista, M.K.S., Melo, D.M.Araújo, Zinner, K., Zinner, L.B., Zukerman-Schpector, J., Vicentini, G.

“…Lanthanide nitrate complexes of bis(pentamethylene)urea (BPMU) with general formula Ln(NO3)33BPMU, where Ln: La, Nd, Sm, Eu, Ho and Er have been prepared and…”
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Preparation and properties of complexes between rare earth trifluoroacetates and hexamethylphosphoramide (HMPA) by Oliveira, V.Silva, Melo, D.M.Araújo, Rocha da Silva, Z, Zinner, L.B, Zinner, K

“…Complexes of composition [Ln(TFA) 3(HMPA) 3] (Ln=La, Nd, Eu, Gd, Dy, Ho and Er, TFA=trifluoroacetate) were prepared and characterized by complexometric…”
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