Hyperporous‐Carbon‐Supported Nonprecious Metal Electrocatalysts for the Oxygen Reduction Reaction,Chemistry - An Asian Journal

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Hyperporous‐Carbon‐Supported Nonprecious Metal Electrocatalysts for the Oxygen Reduction Reaction
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2018-08-01 , DOI: 10.1002/asia.201800747
Tian-Long Zhai ₁ , Cuijuan Xuan ₂ , Jincheng Xu ₃ , Li Ban ₁ , Zhiming Cheng ₃ , Shaolei Wang ₂ , Deli Wang ₂ , Bien Tan ₂ , Chun Zhang ₁

Affiliation

Highly porous carbonaceous nonprecious metal catalysts for the oxygen reduction reaction are prepared by carbonization of low‐cost metalloporphyrin‐based hyper‐crosslinked polymers (MPH‐X). With high surface area (2768 m² g⁻¹), hierarchical porous structure, and high metal loading (9.97 wt %), the obtained hyperporous carbon MPH‐Fe/C catalyst exhibits high oxygen reduction reaction (ORR) activity with a half‐wave potential (0.816 V) that is comparable to the 0.819 V of commercial Pt/C. Stability tests reveal that MPH‐Fe/C also exhibits outstanding long‐term durability and methanol tolerance. Our findings may offer an alternative approach to produce nonprecious metal ORR catalysts on a large scale owing to the low‐cost MPH‐X precursors with diverse metal types.

中文翻译：

超孔碳载非贵金属电催化剂的氧还原反应

用于氧还原反应的高度多孔的含碳非贵金属催化剂是通过将低成本基于金属卟啉的超交联聚合物（MPH-X）碳化而制备的。具有高表面积（2768 m ² g ^-1），分层多孔结构和高金属负载量（9.97 wt％），所得的超多孔碳MPH-Fe / C催化剂显示出高的氧还原反应（ORR）活性，且半数波电位（0.816 V）可以与商用Pt / C的0.819 V相媲美。稳定性测试表明，MPH-Fe / C还具有出色的长期耐久性和甲醇耐受性。由于低成本，多种金属类型的MPH-X前体，我们的发现可能为大规模生产非贵金属ORR催化剂提供了另一种方法。

更新日期：2018-08-01

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