Browsing by Author "Muñoz Becerra, Karina"

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    Recent Advances of Fe-N-C pyrolyzed catalysts for the oxygen reduction reaction
    (2020) Muñoz Becerra, Karina; Venegas Toledo, Ricardo Alberto; Duque, Luis; Zagal, José Heráclito; Recio Cortés, Francisco Javier
    This review summarizes recent advances in the development of pyrolyzed M–N–C catalysts for the oxygen reduction reaction, focusing on activity, stability, and the reactivity descriptors proposed for the rational design of pyrolyzed M–N–C catalysts. We discuss the last advances in achieving high catalytic activity and stability and the new insights into the characterization of FeN4 active sites by Mössbauer spectroscopy in combination with Density Functional Theory (DFT) calculations of the Fe–N–C catalysts. In addition, we present the different reactivity descriptors proposed in the literature for the rational design of Fe–N–C pyrolyzed materials: (i) structural descriptors determined by X-Ray Photoelectron Spectroscopy (XPS) and Mössbauer spectroscopy and (ii) the redox potential of the active center MNx.
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    Theoretical and Experimental Reactivity Predictors for the Electrocatalytic Activity of Copper Phenanthroline Derivatives for the Reduction of Dioxygen
    (2019) Venegas Toledo, Ricardo Alberto; Muñoz Becerra, Karina; Lemus, L.; Toro Labbé, Alejandro; Zagal, J. H.; Recio Cortés, Francisco Javier