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Noble-metal-free electrospun nanomaterials as electrocatalysts for oxygen reduction reaction
Materials Today Physics ( IF 11.5 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.mtphys.2020.100280
Zhaoquan Xu , Haitao Zhao , Jie Liang , Yan Wang , Tingshuai Li , Yongsong Luo , Xifeng Shi , Siyu Lu , Zhesheng Feng , Qi Wu , Xuping Sun

Abstract Oxygen reduction reaction (ORR) is a core reaction of fuel cells and the fabrication of ORR electrocatalysts to improve the cathodic reaction has attracted wide attention. Electrospun nanomaterials with outstanding chemical stability and structural diversity are promising electrocatalysts toward the ORR. In this review, we systemically summarize recent progress in developing noble-metal-free elelctrospun nanomaterials as effective ORR electrocatalysts. Heteroatom-doped carbon nanofibers (CNFs), transition metal/CNFs composites, and carbon-free nanofibers are discussed with the synthesis strategies, structure-property relationships, and reaction mechanisms. We also propose the future perspectives, challenges and research directions of electrospun nanomaterials for promoting ORR electrocatalysis.

中文翻译:

无贵金属电纺纳米材料作为氧还原反应的电催化剂

摘要 氧还原反应(ORR)是燃料电池的核心反应,制备ORR电催化剂以改善阴极反应引起了广泛关注。具有出色化学稳定性和结构多样性的电纺纳米材料是有前途的 ORR 电催化剂。在这篇综述中,我们系统地总结了开发不含贵金属的电纺纳米材料作为有效的 ORR 电催化剂的最新进展。讨论了杂原子掺杂的碳纳米纤维 (CNFs)、过渡金属/CNFs 复合材料和无碳纳米纤维的合成策略、结构-性能关系和反应机制。我们还提出了电纺纳米材料在促进 ORR 电催化方面的未来前景、挑战和研究方向。
更新日期:2020-12-01
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