La2NiO4 Ceramic Electrodes for Hydrogen Peroxide Electroreduction

resumo

Direct borohydride/peroxide fuel cells (DBPFCs) use sodium borohydride (NaBH4) as an anodic fuel and hydrogen peroxide (H2O2) as the oxidant. Currently, we are focused on finding low-cost, stable, durable, and efficient electrocatalytic materials for H2O2 reduction in DBPFCs. Recently, some perovskite-type oxides were found to have reasonable activity for H2O2 electroreduction. Here, La2NiO4 ceramic disks are prepared by mechanosynthesis and characterized by scanning electron microscopy and X-ray diffraction. Cyclic voltammetry, chronoamperometry and chronopotentiometry are used to investigate La2NiO4 activity for H2O2 reduction in alkaline media, and its possible use as cathodes for DBPFCs.

palavras-chave

BOROHYDRIDE FUEL-CELL; SODIUM-BOROHYDRIDE; OXYGEN-REDUCTION; ELECTROOXIDATION; OXIDATION; CATALYSTS; ELECTROCATALYSIS; CATHODES; DESIGN; CARBON

categoria

Electrochemistry; Energy & Fuels; Polymer Science

autores

Santos, DMF; Sousa, N; Sljukic, B; Sequeira, CAC; Figueiredo, FML

nossos autores

Partilhe este projeto

Publicações similares

Usamos cookies para atividades de marketing e para lhe oferecer uma melhor experiência de navegação. Ao clicar em “Aceitar Cookies” você concorda com nossa política de cookies. Leia sobre como usamos cookies clicando em "Política de Privacidade e Cookies".