Writers: A.L. Horovistiz, R.A. Rocha, E.N.S. Muccillo Keywords:Powders; chemical preparation; Ionic conductivity; CeO2; Fuel cells Abstract: The effects of small amounts of bismuth and sodium on the electrical conductivity of gadolinia-doped ceria are investigated. Bulk specimens of […]
Writers: C. S. Martin, M. F. S. Teixeira Keywords: Oxo–manganese complex; Electrochemical behavior; Enzymatic biomimicking; Electrocatalysis; Dopamine Abstract: This work describes the characterization of the [Mn2IV,IVO2(terpy)2(H2O)2]4+ complex in aqueous solution by UV–vis spectrophotometry, cyclic voltammetry, and linear sweep voltammetry with a rotating disk electrode. The pH effect, potential […]
Writers: F. Moura; A.Z.Simões; R.C.Deus; M.R.Silva; J.A.Varela; E.Longo Keywords: A. Ceramics; B. Chemical syntheses; B. Powder metallurgy; C. X-ray diffraction Abstract: A study was undertaken about the structural and photoluminescent properties at room temperature of […]
Writers: Carolina Hernandes Marques; Alexandre Mesquita; Vinicius Dantas Araújo; Maria Inês Basso Bernardi Keywords: Al2O3:CuO; pigments; polymeric precursor method Abstract: Copper (II) aluminate, CuAl2O4, which is known to be an inverse spinel contains a d9 […]
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