Premium
Low‐Cost Chitosan‐Derived N‐Doped Carbons Boost Electrocatalytic Activity of Multiwall Carbon Nanotubes
Author(s) -
Qiao Mo,
Meysami Seyyed Shayan,
Ferrero Guillermo Alvarez,
Xie Fei,
Meng Han,
Grobert Nicole,
Titirici MariaMagdalena
Publication year - 2018
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201707284
Subject(s) - materials science , carbon nanotube , chitosan , catalysis , chemical engineering , coating , electrolyte , hydrothermal circulation , carbon nanofiber , doping , nanotechnology , electrode , organic chemistry , chemistry , engineering , optoelectronics
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 H 2 O 2 poisoning; (iii) creates nitrogenated active sites and hence further enhances ORR activity and robustness.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom