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首页> 外文期刊>Electrocatalysis >Hierarchically Structured Non-PGM Oxygen Reduction Electrocatalyst Based on Microemulsion-Templated Silica and Pyrolyzed Iron and Cyanamide Precursors
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Hierarchically Structured Non-PGM Oxygen Reduction Electrocatalyst Based on Microemulsion-Templated Silica and Pyrolyzed Iron and Cyanamide Precursors

机译：基于微乳液模板二氧化硅和热解铁和氰胺前体的分层结构非PGM氧还原电催化剂

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摘要

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.
机译：使用新颖的模板方法合成了基于铁和氰胺的分层结构的用于氧还原的电催化剂，该方法导致了孔隙和颗粒的尺度分层。微乳液工艺用于生成具有多峰孔分布的二氧化硅模板，该模板被金属和氮前体浸渍，从而形成大表面积的开放结构的活性电催化剂，用于在酸性和碱性介质中还原氧。使用显微镜，光谱学和电化学方法对电催化剂进行了广泛的表征，以了解通过这种新方法获得的最终催化剂结构及其对活性的影响。

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