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

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 interf...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2023-09, Vol.62 (38), p.e202310383-e202310383
Main Authors: Zhang, Fangzhou, Luo, Jiamei, Chen, Junliang, Luo, Hongxia, Jiang, Miaomiao, Yang, Chenxi, Zhang, Hui, Chen, Jun, Dong, Angang, Yang, Jianping
Format: Article
Language:English
Subjects:
Assembly
Catalysts
Chemical reduction
Crystals
Electrocatalysts
Electrochemistry
Iron
Nanocrystals
Nanofibers
Nitrate reduction
Nitrate removal
Nutrient removal
Substrates
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Summary: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 nanofiber (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.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.202310383