Browsing by Author "Sepúlveda, Rossana"

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Artículo

Mechanochemical processing of IrO2–Ta2O5: an alternative route for synthesizing Ir and Ir(Ta)O2 solid solution

Guzmán, Danny; Dubray, Gabriel; Aguilar, Claudio; Rojas, Paula; Guzmán, Alexis; Soliz, Alvaro; Sepúlveda, Rossana; Espinoza González, Rodrigo Andrés (Elsevier, 2021)

This paper describes a study exploring milling and subsequent heat treatments of pure IrO2 and Ta2O5 powders. Reactants were milled under Ar atmosphere in a SPEX 8000D mill, with structural, morphological, and compositional ...
Artículo

Near critical and supercritical fluid extraction of Cu(II) from aqueous solutions using a hollow fiber contactor

Valdés, Hugo; Sepúlveda, Rossana; Romero, Julio; Valenzuela, Fernando; Sánchez, José (Elsevier, 2013)

The aim of this work is the experimental and theoretical characterization of the mass transfer in a membrane-based dense gas extraction of metal ions from aqueous solutions using a hollow fiber contactor. Extractions of ...