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Reduction Reaction by Porphyrin-Based Catalysts for Fuel Cells

机译：卟啉基催化剂对燃料电池的还原反应

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摘要

In 2007, the field of oxygen reduction reaction (ORR) by porphyrins was partially reviewed by Y. Kiros. The new development reported under the current review is the effect of surface state (composition) on porphyrin’s activity toward oxygen reduction in fuel cells, and the highlight of the analogue of fuel cell cathode activity and the oxygen reduction activity in nature. This field also needs a fresh look vs. its overall importance. The porphyrins themselves are moderate oxygen reduction catalysts, and their activity needs to be enhanced. In perspectives of fuel cells, the methods that are practiced and reviewed here are the use of carbon and gold support, pyrolysis and co-deposition with transition metal oxides. Reasons for the porphyrin enhancements and catalysis have been scrutinized. Although great progress has been achieved, there are still some challenges ahead (concerning the ORR mechanism on porphyrins and the activity and stability enhancement for porphyrins to meet practical applications). Therefore, exploring ORR mechanisms on porphyrin, the continuation of the characterization efforts and enhancing porphyrins catalytic performance (a paper in preparation from this group), as well achieving better catalyst durability, are major focuses for fuel cell research in the future.
机译：2007年，Y。Kiros对卟啉的氧还原反应（ORR）进行了部分审查。当前评论中报道的新进展是表面状态（组成）对卟啉对燃料电池中氧还原活性的影响，也是燃料电池阴极活性和自然界中氧还原活性类似物的亮点。与整体重要性相比，该领域也需要焕然一新。卟啉本身是中等程度的氧还原催化剂，需要提高它们的活性。从燃料电池的角度来看，此处实践和审查的方法是使用碳和金载体，热解以及与过渡金属氧化物的共沉积。卟啉增强和催化的原因已被详细研究。尽管已经取得了长足的进步，但仍然存在一些挑战（关于卟啉的ORR机制以及卟啉的活性和稳定性的提高，以满足实际应用）。因此，探索卟啉的ORR机理，继续进行表征工作和增强卟啉的催化性能（该小组正在准备的论文）以及实现更好的催化剂耐久性，是未来燃料电池研究的主要重点。

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