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Metal‐Nitrogen‐doped Porous Carbons Derived from Metal‐Containing Ionic Liquids for Oxygen Reduction Reaction
Chemistry - An Asian Journal ( IF 4.1 ) Pub Date : 2018-03-30 , DOI: 10.1002/asia.201800127
Cancan Wang 1 , Jiangna Guo 1 , Dan Xu 1 , Juewen Zhang 1 , Muzi Chen 2 , Feng Yan 1
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This study describes a self‐doping and additive‐free strategy for the synthesis of metal‐nitrogen‐doped porous carbon materials (CMs) via carbonizing well‐tailored precursors, metal‐containing ionic liquids (M‐ILs). The organic skeleton in M‐ILs serves as both carbon and nitrogen sources, while metal ions acts as porogen and metallic dopants. A high nitrogen content, appropriate content of metallic species and hierarchical porosity synergistically endow the resultant CMs (MIBA‐M‐T) as effective electrocatalysts for the oxygen reduction reaction (ORR). MIBA‐Fe‐900 with a high specific surface area of 1567 m2 g−1 exhibits an activity similar to that of Pt/C catalyst, a higher tolerance to methanol than Pt/C, and long‐term durability. This work supplies a simple and convenient route for the preparation of metal‐containing carbon electrocatalysts.

中文翻译:

含金属离子液体衍生的金属氮掺杂多孔碳用于氧还原反应

这项研究描述了一种自掺杂和无添加剂的策略,该方法通过碳化定制良好的前体,含金属的离子液体(M-IL)来合成金属氮掺杂的多孔碳材料(CM)。M-ILs中的有机骨架既充当碳源又充当氮源,而金属离子充当致孔剂和金属掺杂剂。较高的氮含量,适当的金属种类含量和分层孔隙度可协同作用,使所得的CM(MIBA-M-T)作为氧还原反应(ORR)的有效电催化剂。MIBA-Fe-900具有1567 m 2  g -1的高比表面积表现出与Pt / C催化剂相似的活性,比Pt / C更高的甲醇耐受性以及长期耐久性。这项工作为制备含金属的碳电催化剂提供了一种简便的途径。
更新日期:2018-03-30
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