Understanding the mechanism and synergistic interaction of cobalt-based electrocatalysts containing nitrogen-doped carbon for 4 e− ORR,Journal of Materials Chemistry A

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Understanding the mechanism and synergistic interaction of cobalt-based electrocatalysts containing nitrogen-doped carbon for 4 e− ORR
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2023-05-03 , DOI: 10.1039/d3ta00576c
Fatima Nasim ₁ , Muhammad Arif Nadeem _{1,

2}

Affiliation

Considering that the cathodic oxygen reduction reaction (ORR) is sluggish, it is necessary to develop efficient and durable catalysts to accelerate this reaction. Furthermore, the high cost and low abundance of Pt, which is the benchmark catalyst for the cathodic ORR, limit its widespread applications. Among the transition metals, cobalt-based materials have shown significant advancement for the reduction of oxygen molecules, which has been proven by both experimental and theoretical investigations. The high inherent catalytic ability of cobalt among the first row transition metals is the key descriptor for the widespread research in this area. Herein, we review the recent advancements in cobalt-based electrocatalysts supported on nitrogen-doped carbon towards the selective 4 e⁻ reduction of oxygen molecules with enhanced operational durability. Furthermore, we highlight the relationship between theory and experiment to investigate the fundamental mechanism of these electrocatalysts. Finally, we present perspectives on suitable approaches for interpreting the mechanism of cobalt-based nitrogen-doped carbon towards the ORR.

中文翻译：

了解含氮掺杂碳的钴基电催化剂对 4 e− ORR 的机理和协同作用

考虑到阴极氧还原反应（ORR）反应缓慢，有必要开发高效耐用的催化剂来加速该反应。此外，阴极ORR的基准催化剂Pt的高成本和低丰度限制了其广泛应用。在过渡金属中，钴基材料在减少氧分子方面表现出显着进步，这已通过实验和理论研究得到证实。第一排过渡金属中钴的高固有催化能力是该领域广泛研究的关键描述符。在此，我们回顾了氮掺杂碳支持的钴基电催化剂在选择性 4 e 上的最新进展^-减少氧分子，提高操作耐久性。此外，我们强调了理论与实验之间的关系，以研究这些电催化剂的基本机理。最后，我们提出了关于解释钴基氮掺杂碳对 ORR 的机制的合适方法的观点。

更新日期：2023-05-03

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