Department's Research is on ChemElectroChem Front Cover

Saturday, 18 January, 2020

The Department research is on the Front Cover of ChemElectroChem Volume 24/2019 with the paper:

Enhancing Oxygen Reduction Reaction Catalytic Activity Using a Sub-Stoichiometric CaTiO3-∂ Additive

By Lucia Mazzapioda, Carmelo Lo Vecchio, Annalisa Paolone, Antonino Salvatore Aricò, Vincenzo Baglio, and Maria Assunta Navarra.


Platinum scarcity and its high cost have led to the requirement of alternative materials catalysing the oxygen reduction reaction (ORR), which is the main rate-determining step occurring in electrochemical devices, including metal-air batteries and fuel cells. We report a study on a sub-stoichiometric calcium titanate (CaTiO3-δ, CTO) compound used as promoter for the ORR in order to reduce the Pt loading and improve its electrocatalytic activity. Composite catalysts based on Pt/C with different amounts of CTO were prepared and their activity was investigated by rotating disk electrode (RDE). The obtained results proved a higher catalytic activity for the composite electrode, with respect to pure Pt/C, in terms of electrochemically active surface area, oxygen reduction current density, onset potential and stability.


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