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Performance evaluation of NiCo2O4 spinel as a catalyst for partial oxidation of...
Peres,Ana Paula da Silva; Lima,Andréia Cavalcante de; Barros,Bráulio Silva; Ruiz,Juan Alberto Chavez; Melo,Dulce Maria de AraújoABSTRACT The NiCo2O4 catalyst with spinel structure was prepared by a modified polymeric-precursor method using gelatin as an organic-directing agent. The obtained powder was characterized by XRD, TPR and tested on the partial oxidation of methane. The Rietveld analysis performed on the XRD pattern confirmed the crystallization of two phases, the spinel NiCo2O4, and a solid solution NixCo1-xO. TPR profile revea...
Modulator Effect of Acetic Acid on the Morphology of Luminescent Mixed Lanthani...
Leite,Ana Karina Pereira; Barros,Bráulio Silva; Kulesza,Joanna; Nascimento,Jarley Fagner Silva do; Melo,Dulce Maria de AraújoThe control of the size and morphology of Metal-Organic Frameworks is a challenge that must be overcome to ensure the use of these materials in advanced applications. Mixed Lanthanide-Organic Frameworks (MLOFs) were synthesized via solvo(hydro)thermal method and then characterized by PXRD, IR, TG/DTA, SEM and PL spectroscopy. The effect of the modulator (acetic acid) on the morphological characteristics of the ...