本文主要研究内容
作者（2019）在《Electrocatalytic activity of LaSr3Fe3O10 and LaSr3Fe3O10-GO towards oxygen reduction reaction in alkaline medium》一文中研究指出：Oxygen reduction reaction（ORR） plays a critical role in many energy conversion and storage processes.Therein, a comparative study of the electrocatalytic activity for ORR in 0.1 mol/L KOH solution was conducted using layered perovskite-like LaSr3Fe3O10 and LaSr3 Fe3O10-graphene oxide（GO） composite as electrodes. Linear sweep voltammetry（LSV） results show that the LaSr3 Fe3O10-GO hybrid exhibits higher current density, a more positive onset potential（-0.15 V vs. Hg/HgO） in comparison with LaSr3Fe3O10.The value of the overall transferred electrons for both catalysts implies a dominant two electron process for ORR. Both catalysts under alkalic conditions exhibit a two-step Tafel slope, suggesting a change in the reaction mechanism for ORR. The composite electrode exhibits a higher ORR current density, but inferior durability performances in relative to the LaSr3Fe3O10electrode.
Abstract
Oxygen reduction reaction（ORR） plays a critical role in many energy conversion and storage processes.Therein, a comparative study of the electrocatalytic activity for ORR in 0.1 mol/L KOH solution was conducted using layered perovskite-like LaSr3Fe3O10 and LaSr3 Fe3O10-graphene oxide（GO） composite as electrodes. Linear sweep voltammetry（LSV） results show that the LaSr3 Fe3O10-GO hybrid exhibits higher current density, a more positive onset potential（-0.15 V vs. Hg/HgO） in comparison with LaSr3Fe3O10.The value of the overall transferred electrons for both catalysts implies a dominant two electron process for ORR. Both catalysts under alkalic conditions exhibit a two-step Tafel slope, suggesting a change in the reaction mechanism for ORR. The composite electrode exhibits a higher ORR current density, but inferior durability performances in relative to the LaSr3Fe3O10electrode.
论文参考文献
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：Electrocatalytic activity of LaSr3Fe3O10 and LaSr3Fe3O10-GO towards oxygen reduction reaction in alkaline medium论文
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