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Porous Microspherical N and P‐co‐doped NiFe 2 O 4 /Single‐Walled Carbon Nanotubes for Efficient Electrochemical Oxygen Evolution Reaction
Author(s) -
Fei Mengfei,
Shi Huilan,
Zhao Jun,
Kang Ning,
He Wenya,
Li Hui,
Yang Fengchun
Publication year - 2018
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201801019
Subject(s) - tafel equation , overpotential , materials science , carbon nanotube , oxygen evolution , electrochemistry , anode , catalysis , chemical engineering , water splitting , electrocatalyst , carbon fibers , inorganic chemistry , nitrogen , nanotechnology , electrode , chemistry , composite material , composite number , organic chemistry , photocatalysis , engineering
The porous microspherical Nitrogen and Phosphorus‐co‐doped NiFe 2 O 4 /Single‐Walled Carbon Nanotubes (NP‐NiFe 2 O 4 /SWNTs) had been fabricated. Nitrogen (N) and phosphorous (P) were co‐doped to increase the active sites. And SWNTs hybrid was to obtain the enhanced conductivity, large specific surface area and more active sites. The hierarchical, porous structure and highly conductive SWNTs enables efficient transport of the electrons generated during oxygen evolution reaction (OER). Thus, NP‐NiFe 2 O 4 /SWNTs was demonstrated as a high‐performance catalyst for OER with a small overpotential of 247 mV at 10 mA cm −2 and low Tafel slope of 83.6 mV dec −1 . The outstanding performance of NP‐NiFe 2 O 4 /SWNTs can also made it serve as anode for water splitting at a cell voltage of 1.595 V, which surpasses the precious RuO 2 and Pt/C.