Design of Fe,N co-doped multi-walled carbon nanotubes for efficient oxygen reduction

Unique Fe and N co-doped multi-walled carbon nanotubes are designed to efficiently catalyze the oxygen reduction reaction (ORR). The preparation processes involve surface functionalization, subsequent wet impregnation and final thermal fixation of Fe-N x species. The catalyst achieved outstanding al...

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Published inChemical communications (Cambridge, England) Vol. 56; no. 92; pp. 14467 - 1447
Main Authors Du, Peng, Bao, Yan, Guo, Chen, Wu, Lawrence, Pan, Jie, Zhao, Chenghao, Ma, Fei-Xiang, Lu, Jian, Li, Yang Yang
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 19.11.2020
Subjects
Carbon
Multi wall carbon nanotubes
Oxygen reduction reactions
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Summary:Unique Fe and N co-doped multi-walled carbon nanotubes are designed to efficiently catalyze the oxygen reduction reaction (ORR). The preparation processes involve surface functionalization, subsequent wet impregnation and final thermal fixation of Fe-N x species. The catalyst achieved outstanding alkaline ORR performance with a very positive half-wave potential (∼0.91 V). Theoretical calculations show that the carbon layer below the active Fe-N x sites is beneficial to the ORR. Fe and N co-doped multi-walled carbon nanotubes (Fe,N-MWCNTs) are designed and fabricated to efficiently catalyze the oxygen reduction reaction (ORR).
Bibliography:Electronic supplementary information (ESI) available: Experimental section, computational details, RRDE test, methanol poisoning test and durability test
10.1039/d0cc05520d
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ISSN:1359-7345
1364-548X
DOI:10.1039/d0cc05520d