Low‐cost chitosan‐derived N‐doped carbons boost electrocatalytic activity of multiwall carbon nanotubes

An effective strategy is proposed to enhance the oxygen reduction reaction (ORR) performance of multiwall carbon nanotubes (MWCNTs) in both acid and alkaline electrolytes by coating them with a layer of biomass derivative N-doped hydrothermal carbons. The N-doped amorphous carbon coating plays tripl...

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Main Authors: Qiao, M, Meysami, S, Ferrero, G, Xie, F, Meng, H, Grobert, N, Titirici, M
Format: Journal article
Language:English
Published: Wiley 2018
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author Qiao, M
Meysami, S
Ferrero, G
Xie, F
Meng, H
Grobert, N
Titirici, M
author_facet Qiao, M
Meysami, S
Ferrero, G
Xie, F
Meng, H
Grobert, N
Titirici, M
author_sort Qiao, M
collection OXFORD
description An effective strategy is proposed to enhance the oxygen reduction reaction (ORR) performance of multiwall carbon nanotubes (MWCNTs) in both acid and alkaline electrolytes by coating them with a layer of biomass derivative N-doped hydrothermal carbons. The N-doped amorphous carbon coating plays triple roles: it (i) promotes the assembly of MWCNTs into a 3D network therefore improving the mass transfer and thus increasing the catalytic activity; (ii) protects the Fe-containing active sites, present on the surface of the MWCNTs, from H2O2 poisoning; (iii) creates nitrogenated active sites and hence further enhances ORR activity and robustness.
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spelling oxford-uuid:d3c833fe-4c8d-48b8-b7a4-6207b6765a4f2022-03-27T08:13:46ZLow‐cost chitosan‐derived N‐doped carbons boost electrocatalytic activity of multiwall carbon nanotubesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d3c833fe-4c8d-48b8-b7a4-6207b6765a4fEnglishSymplectic Elements at OxfordWiley2018Qiao, MMeysami, SFerrero, GXie, FMeng, HGrobert, NTitirici, MAn effective strategy is proposed to enhance the oxygen reduction reaction (ORR) performance of multiwall carbon nanotubes (MWCNTs) in both acid and alkaline electrolytes by coating them with a layer of biomass derivative N-doped hydrothermal carbons. The N-doped amorphous carbon coating plays triple roles: it (i) promotes the assembly of MWCNTs into a 3D network therefore improving the mass transfer and thus increasing the catalytic activity; (ii) protects the Fe-containing active sites, present on the surface of the MWCNTs, from H2O2 poisoning; (iii) creates nitrogenated active sites and hence further enhances ORR activity and robustness.
spellingShingle Qiao, M
Meysami, S
Ferrero, G
Xie, F
Meng, H
Grobert, N
Titirici, M
Low‐cost chitosan‐derived N‐doped carbons boost electrocatalytic activity of multiwall carbon nanotubes
title Low‐cost chitosan‐derived N‐doped carbons boost electrocatalytic activity of multiwall carbon nanotubes
title_full Low‐cost chitosan‐derived N‐doped carbons boost electrocatalytic activity of multiwall carbon nanotubes
title_fullStr Low‐cost chitosan‐derived N‐doped carbons boost electrocatalytic activity of multiwall carbon nanotubes
title_full_unstemmed Low‐cost chitosan‐derived N‐doped carbons boost electrocatalytic activity of multiwall carbon nanotubes
title_short Low‐cost chitosan‐derived N‐doped carbons boost electrocatalytic activity of multiwall carbon nanotubes
title_sort low cost chitosan derived n doped carbons boost electrocatalytic activity of multiwall carbon nanotubes
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