Abstract
Hierarchically structured electrocatalysts for oxygen reduction based on iron and cyanamide were synthesized using novel templating approach that leads to hierarchy of scales of pores and particles. Microemulsion process is used to generate silica template with multimodal pore distribution, which is impregnated with metal and nitrogen precursors, to create a large surface area openly structured active electrocatalysts for oxygen reduction in both acid and alkaline media. Extensive characterization using microscopic, spectroscopic, and electrochemical methods of electrocatalysts was done to understand the final catalysts structure obtained through this novel approach and its impact on activity.
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This work was supported by V.V.7 Advanced Cathode Catalysts (UNM subaward to Los Alamos National Laboratory).
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Artyushkova, K., Walker, C., Patterson, W. et al. Hierarchically Structured Non-PGM Oxygen Reduction Electrocatalyst Based on Microemulsion-Templated Silica and Pyrolyzed Iron and Cyanamide Precursors. Electrocatalysis 5, 241–247 (2014). https://doi.org/10.1007/s12678-014-0185-2
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DOI: https://doi.org/10.1007/s12678-014-0185-2