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Fe‐Co‐Ni/Nitrogen‐Doped Mesoporous Carbon Materials for Electrochemical Oxygen Reduction
ChemistrySelect ( IF 1.9 ) Pub Date : 2018-12-05 , DOI: 10.1002/slct.201802372 Shujun Qiu 1 , Wei Gao 1 , Hongliang Peng 1 , Hailiang Chu 1 , Zehao Li 1 , Huanbiao Liang 1 , Yongjin Zou 1 , Cuili Xiang 1 , Huanzhi Zhang 1 , Erhu Yan 1 , Fen Xu 1 , Lixian Sun 1 , Ying Li 2
ChemistrySelect ( IF 1.9 ) Pub Date : 2018-12-05 , DOI: 10.1002/slct.201802372 Shujun Qiu 1 , Wei Gao 1 , Hongliang Peng 1 , Hailiang Chu 1 , Zehao Li 1 , Huanbiao Liang 1 , Yongjin Zou 1 , Cuili Xiang 1 , Huanzhi Zhang 1 , Erhu Yan 1 , Fen Xu 1 , Lixian Sun 1 , Ying Li 2
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Recently, simultaneous doping of transition metals and heteroatoms in carbonaceous materials has become promising alternatives to Pt‐based catalysts for electrochemical oxygen reduction reaction (ORR). In this study, a kind of Fe‐Co‐Ni/N‐doped carbon framework catalysts is successfully synthesized using a hard template of SBA‐16@graphene oxide (SBA‐16@GO), during which ferroporphyrin is used as a nitrogen source and triblock copolymer Pluronic F127 is used as surfactant. The as‐prepared catalysts exhibit unique porous structure with high specific surface area (853 m2 g−1) and the average pore size distribution in the range of 2.4 to 3.3 nm, which offers short diffusion channels for the penetration and transportation of electrolyte. Moreover, the sample pyrolyzed at 800 °C (Fe‐Co‐Ni/NPC‐800) exhibits enhanced electrocatalytic activity with the half‐wave potential (E1/2) of ∼ −0.09 V, which is only negatively shifted by about 50 mV for ORR in alkaline electrolyte compared to the commercial Pt/C catalyst.
中文翻译：
Fe-Co-Ni /氮掺杂介孔碳材料用于电化学减氧
近年来，碳质材料中过渡金属和杂原子的同时掺杂已成为用于电化学氧还原反应（ORR）的基于Pt的催化剂的有前途的替代方法。在这项研究中，使用SBA-16 @氧化石墨烯（SBA-16 @ GO）的硬模板成功合成了一种Fe-Co-Ni / N掺杂的碳骨架催化剂，在此期间将卟啉用作氮源三嵌段共聚物Pluronic F127用作表面活性剂。所制备的催化剂表现出独特的多孔结构，具有高比表面积（853 m 2 g -1）的平均孔径分布在2.4到3.3 nm之间，这为电解质的渗透和运输提供了短的扩散通道。此外，在800°C（Fe-Co-Ni / NPC-800）上热解的样品表现出增强的电催化活性，半波电势（E 1/2）约为-0.09 V，仅负移了约50与市售Pt / C催化剂相比，ORR在碱性电解液中的mV为mV。
更新日期：2018-12-05
中文翻译：
Fe-Co-Ni /氮掺杂介孔碳材料用于电化学减氧
近年来，碳质材料中过渡金属和杂原子的同时掺杂已成为用于电化学氧还原反应（ORR）的基于Pt的催化剂的有前途的替代方法。在这项研究中，使用SBA-16 @氧化石墨烯（SBA-16 @ GO）的硬模板成功合成了一种Fe-Co-Ni / N掺杂的碳骨架催化剂，在此期间将卟啉用作氮源三嵌段共聚物Pluronic F127用作表面活性剂。所制备的催化剂表现出独特的多孔结构，具有高比表面积（853 m 2 g -1）的平均孔径分布在2.4到3.3 nm之间，这为电解质的渗透和运输提供了短的扩散通道。此外，在800°C（Fe-Co-Ni / NPC-800）上热解的样品表现出增强的电催化活性，半波电势（E 1/2）约为-0.09 V，仅负移了约50与市售Pt / C催化剂相比，ORR在碱性电解液中的mV为mV。
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