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Fe/Co-based nanoparticles encapsulated in heteroatom-doped carbon electrocatalysts for oxygen reduction reaction

掺杂碳封装的Fe/Co基纳米颗粒氧还原催化剂

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Abstract

It is crucial to develop low-cost and highly efficient catalysts for oxygen reduction reaction (ORR) which is the key process in electrochemical energy conversion and storage devices. Transition metal-based nanoparticles/carbon materials are an important class of non-noble metal catalysts that have attracted considerable research interest. The topic of this review is mainly focused on carbon encapsulated Fe/Co-based nanoparticles catalysts for ORR, and these catalysts are summarized in categories of metals, oxides, carbides, phosphides, sulfides and hybrid nanoparticles. The structures and morphologies of the carbon matrix as well as compositions of nanoparticles have great influence on the catalytic performance. Numerous catalysts display excellent ORR activity and stability in alkaline media but only a few are efficient in acidic media. In addition, challenges and further strategies on the development of this type of carbon encapsulated nanoparticles catalysts are also proposed.

摘要

摘要氧还原反应是电化学能量转换和存储装置的重要反应过程, 但其反应动力学缓慢, 因此开发高效低成本的氧还原催化剂至关 重要. 目前, 包裹过渡金属基纳米颗粒的碳材料因其优异的氧还原 催化活性, 引起了广泛关注. 本文按照金属基纳米颗粒的类别从金 属、碳化物、磷化物、氧化物、硫化物以及混合颗粒等六个方面 综述了掺杂碳封装的Fe/Co基纳米颗粒氧还原催化剂. 催化剂碳基 质的结构、纳米颗粒的种类及其分布对催化性能有很大影响, 目 前这类催化剂在碱性介质中表现出了优异的氧还原活性和稳定性, 但在酸性介质中的活性仍需要进一步提高. 文章讨论了制备封装 型纳米颗粒/碳高效氧还原催化剂过程中存在的挑战, 并展望了其 发展前景.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (21773128, 21534005 and 21421001).

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Authors and Affiliations

  1. Institute of New Catalytic Materials Science, School of Materials Science and Engineering, Key Laboratory of Advanced Energy Materials Chemistry (MOE), Nankai University, Tianjin, 300350, China

    Baoxia Ni  (倪保霞), Luming Wu  (武鲁明), Rui Chen  (陈睿), Chengxiang Shi  (史成香) & Tiehong Chen  (陈铁红)

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  1. Baoxia Ni  (倪保霞)
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  2. Luming Wu  (武鲁明)
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  3. Rui Chen  (陈睿)
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Ni B and Chen T designed the outlines; Ni B, Wu L, Chen R and Shi C collected the literature and wrote the paper.

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Correspondence to Tiehong Chen  (陈铁红).

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The authors declare that they have no conflict of interest.

Baoxia Ni is currently a PhD student under the supervision of Prof. Tiehong Chen, at the School of Materials Science and Engineering, Nankai University. Her research focuses on the design and synthesis of nanostructured carbon electrocatalysts.

Tiehong Chen received his BSc and PhD degrees from Nankai University in 1990 and 1996, respectively. He joined Nankai University in 1996 and is currently a professor at the School of Materials Science and Engineering. His current research interests include heterogeneous catalysis, electrocatalysis and synthesis ofzeolites and mesoporous materials.

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Ni, B., Wu, L., Chen, R. et al. Fe/Co-based nanoparticles encapsulated in heteroatom-doped carbon electrocatalysts for oxygen reduction reaction. Sci. China Mater. 62, 1626–1641 (2019). https://doi.org/10.1007/s40843-019-9476-5

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