Synthesis and characterization of alumina-embedded SrCo0.95V0.05O3 nanostructured perovskite: an attractive material for supercapacitor devices

O. E. LINAREZ PÉREZ

MICROPOROUS AND MESOPOROUS MATERIALS

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2019 vol. 293

1387-1811

obalt-based perovskite exhibit fascinating physical properties at the nanoscale. Better oxygen transport, higher ionic/electronic mixed conductivity and enhanced electrocatalytic activity are some of the most important highlighted properties compared to bulk perovskites. Such materials have proved to be excellent candidates for applications in solid oxide fuel cells and supercapacitors.In this work, a technological approach using highly ordered porous anodic aluminum oxide (AAO) as a template for the synthesis of low dimensional SrCo0.95V0.05O3 cubic perovskite is introduced. Thus, the impregnation of AAO membranes in two different mixed oxide precursor solutions, citric acid, on the one hand, and tartaric acid on the another hand, followed by thermal treatments and alumina dissolution, led to the successful synthesis of alumina-embedded SrCo0.95V0.05O3 nanostructured perovskite. By means of the Rietveld method refinement of the XRD data, the perovskite crystallization in a Pm-3m cubi