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首页> 外文期刊>Electrocatalysis >Recent Advances in Heteroatom-Doped Metal-Free Electrocatalysts for Highly Efficient Oxygen Reduction Reaction
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Recent Advances in Heteroatom-Doped Metal-Free Electrocatalysts for Highly Efficient Oxygen Reduction Reaction

机译：杂原子掺杂的无金属高效氧还原反应催化剂的最新进展

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摘要

Heteroatom-doped metal-free electrocatalysts for oxygen reduction reaction (ORR) represent one of the most prominent families of electrocatalysts for fuel cells. While nitrogen (N)-doped carbon electrocatalysts toward ORR have experienced great progress throughout the past decades and yielded promising material concepts, also other heteroatom-doped catalysts have gained the researchers' tremendous interest recently. Boron (B)-doping on carbon has been extensively studied, and due to the contrary electronic properties between N and B, a synergetic effect between the codoped N and B on carbon has been found for ORR. The carbons doped with sulfur (S), phosphorus (P), silicon (Si), and halogen (fluorine (F), chlorine (Cl), bromine (Br), iodine (I)) have also been studied as metal-free electrocatalysts for ORR in both experimental and theoretical ways. It has been known that the difference in electronegativity and size between the heteroatoms (N, B, S, P, Si, Cl, Br, I) and carbon can polarize adjacent carbon atoms to facilitate the oxygen reduction process. Especially, our research group reported the first F-doped or N,F-codoped carbon black as highly efficient ORR electrocatalysts which possess one of the best price/performance ratio ever. In this feature article, we review the recent research progress in the development of heteroatom-doped carbon-based metal-free electrocatalysts for ORR.
机译：用于氧还原反应（ORR）的杂原子掺杂的无金属电催化剂代表了燃料电池最重要的电催化剂家族之一。在过去的几十年中，虽然氮（N）掺杂的碳电催化剂在ORR方面取得了长足的进步，并产生了有希望的材料概念，但其他杂原子掺杂的催化剂最近也引起了研究人员的极大兴趣。硼（B）掺杂在碳上已经得到了广泛的研究，并且由于N和B之间相反的电子特性，对于ORR，发现了N和B的共掺杂对碳的协同作用。还研究了掺杂有硫（S），磷（P），硅（Si）和卤素（氟（F），氯（Cl），溴（Br），碘（I））的碳的无金属含量在实验和理论上都适用于ORR的电催化剂。众所周知，杂原子（N，B，S，P，Si，Cl，Br，I）和碳之间的电负性和尺寸差异可以使相邻的碳原子极化，从而促进氧还原过程。特别是，我们的研究小组报告说，第一种掺F或N，F共掺杂的炭黑是高效的ORR电催化剂，具有史上最佳的性价比。在这篇专题文章中，我们回顾了ORR杂原子掺杂碳基无金属电催化剂的最新研究进展。

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