Interfacial Assembly of Nanocrystals on Nanofibers with Strong Interaction for Electrocatalytic Nitrate Reduction

Fangzhou Zhang; Jiamei Luo; Junliang Chen; Hongxia Luo; Miaomiao Jiang; Chenxi Yang; Hui Zhang; Jun Chen; Angang Dong; Jianping Yang

doi:10.1002/anie.202310383

Interfacial Assembly of Nanocrystals on Nanofibers with Strong Interaction for Electrocatalytic Nitrate Reduction

Angew Chem Int Ed Engl. 2023 Sep 18;62(38):e202310383. doi: 10.1002/anie.202310383. Epub 2023 Aug 16.

Authors

Affiliations

¹ State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China.
² ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute (IPRI), Australian Institute of Innovative Materials (AIIM), University of Wollongong, Wollongong, NSW 2522, Australia.
³ Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, and Department of Chemistry, Fudan University, Shanghai, 200433, China.

PMID: 37550249
DOI: 10.1002/anie.202310383

Abstract

One-dimensional fiber architecture serves as an excellent catalyst support. The orderly arrangement of active materials on such a fiber substrate can enhance catalytic performance by exposing more active sites and facilitating mass diffusion; however, this remains a challenge. We developed an interfacial assembly strategy for the orderly distribution of metal nanocrystals on different fiber substrates to optimize their electrocatalytic performance. Using electrochemical nitrate reduction reaction (NO₃ ^- RR) as a representative reaction, the iron-based nanofibers (Fe/NFs) assembly structure achieved an excellent nitrate removal capacity of 2317 mg N/g Fe and N₂ selectivity up to 97.2 %. This strategy could promote the rational design and synthesis of fiber-based electrocatalysts.

Keywords: Fiber; Interfacial Assembly; Metal Nanocrystal; Nitrate Reduction Reaction; Strong Interaction.

Abstract

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