Nitrogen doped Carbon Nanotubes as Electrocatalyst for Oxygen Reduction Reaction

Utsav Raj Dotel; Fatemeh Davodi; Olli Sorsa; Tanja Kallio; Tor Hemmingsen

Nitrogen doped Carbon Nanotubes as Electrocatalyst for Oxygen Reduction Reaction

Utsav Raj Dotel, Fatemeh Davodi, Olli Sorsa, Tanja Kallio, Tor Hemmingsen (Corresponding Author)

Not published at VTT

Research output: Contribution to journal › Article › Scientific › peer-review

Abstract

The oxygen reduction reaction on nitrogen doped multiwalled carbon nanotubes (N-MCNTs) is studied for its application for deoxygenation of seawater. N-MCNTs were synthesized using commercial MCNTs and polyaniline as nitrogen precursor and annealing at a high temperature. The ORR was studied on N-MCNTs in 0.5 M sodium chloride solution using a rotating disk electrode, and physical characterization of the electrocatalysts was performed using X-ray diffraction, mass spectroscopy and transmission electron microscope techniques. The material showed high activity for the ORR in the chloride electrolyte. The onset potential for N-MCNTs was 0.94 V vs RHE. Koutecky-Levich analysis showed that the electrons transfer mainly followed the four-electron pathway, and the electrocatalyst showed good stability during a 15-h stability test.

Original language	English
Pages (from-to)	10340 – 10351
Number of pages	12
Journal	International Journal of Electrochemical Science
Volume	14
Publication status	Published - 7 Oct 2019
MoE publication type	A1 Journal article-refereed

Keywords

Seawater
Deoxygenation
Oxygen reduction
Carbon nanotubes

Cite this

@article{e8b44da6b147450bbabe49bcb30e56eb,

title = "Nitrogen doped Carbon Nanotubes as Electrocatalyst for Oxygen Reduction Reaction",

abstract = "The oxygen reduction reaction on nitrogen doped multiwalled carbon nanotubes (N-MCNTs) is studied for its application for deoxygenation of seawater. N-MCNTs were synthesized using commercial MCNTs and polyaniline as nitrogen precursor and annealing at a high temperature. The ORR was studied on N-MCNTs in 0.5 M sodium chloride solution using a rotating disk electrode, and physical characterization of the electrocatalysts was performed using X-ray diffraction, mass spectroscopy and transmission electron microscope techniques. The material showed high activity for the ORR in the chloride electrolyte. The onset potential for N-MCNTs was 0.94 V vs RHE. Koutecky-Levich analysis showed that the electrons transfer mainly followed the four-electron pathway, and the electrocatalyst showed good stability during a 15-h stability test.",

keywords = "Seawater, Deoxygenation, Oxygen reduction, Carbon nanotubes",

author = "Dotel, {Utsav Raj} and Fatemeh Davodi and Olli Sorsa and Tanja Kallio and Tor Hemmingsen",

note = "The authors are grateful to the Research Council of Norway for providing funding for URD for research abroad under the Industrial PhD scheme (Project no. 269533) and the Academy of Finland DEMEC project (Project no. 286266). The authors are grateful to Mr. Florian Speck, Helmholtz Institute Erlangen-N{\"u}rnberg, for ICP-MS analyses. The authors acknowledge the assistance from Mr. Wakshum Mekonnen Tucho, University of Stavanger, for HRTEM analyses.",

year = "2019",

month = oct,

day = "7",

language = "English",

volume = "14",

pages = "10340 – 10351",

journal = "International Journal of Electrochemical Science",

issn = "1452-3981",

publisher = "Electrochemical Science Group",

}

TY - JOUR

T1 - Nitrogen doped Carbon Nanotubes as Electrocatalyst for Oxygen Reduction Reaction

AU - Dotel, Utsav Raj

AU - Davodi, Fatemeh

AU - Sorsa, Olli

AU - Kallio, Tanja

AU - Hemmingsen, Tor

N1 - The authors are grateful to the Research Council of Norway for providing funding for URD for research abroad under the Industrial PhD scheme (Project no. 269533) and the Academy of Finland DEMEC project (Project no. 286266). The authors are grateful to Mr. Florian Speck, Helmholtz Institute Erlangen-Nürnberg, for ICP-MS analyses. The authors acknowledge the assistance from Mr. Wakshum Mekonnen Tucho, University of Stavanger, for HRTEM analyses.

PY - 2019/10/7

Y1 - 2019/10/7

N2 - The oxygen reduction reaction on nitrogen doped multiwalled carbon nanotubes (N-MCNTs) is studied for its application for deoxygenation of seawater. N-MCNTs were synthesized using commercial MCNTs and polyaniline as nitrogen precursor and annealing at a high temperature. The ORR was studied on N-MCNTs in 0.5 M sodium chloride solution using a rotating disk electrode, and physical characterization of the electrocatalysts was performed using X-ray diffraction, mass spectroscopy and transmission electron microscope techniques. The material showed high activity for the ORR in the chloride electrolyte. The onset potential for N-MCNTs was 0.94 V vs RHE. Koutecky-Levich analysis showed that the electrons transfer mainly followed the four-electron pathway, and the electrocatalyst showed good stability during a 15-h stability test.

AB - The oxygen reduction reaction on nitrogen doped multiwalled carbon nanotubes (N-MCNTs) is studied for its application for deoxygenation of seawater. N-MCNTs were synthesized using commercial MCNTs and polyaniline as nitrogen precursor and annealing at a high temperature. The ORR was studied on N-MCNTs in 0.5 M sodium chloride solution using a rotating disk electrode, and physical characterization of the electrocatalysts was performed using X-ray diffraction, mass spectroscopy and transmission electron microscope techniques. The material showed high activity for the ORR in the chloride electrolyte. The onset potential for N-MCNTs was 0.94 V vs RHE. Koutecky-Levich analysis showed that the electrons transfer mainly followed the four-electron pathway, and the electrocatalyst showed good stability during a 15-h stability test.

KW - Seawater

KW - Deoxygenation

KW - Oxygen reduction

KW - Carbon nanotubes

M3 - Article

SN - 1452-3981

VL - 14

SP - 10340

EP - 10351

JO - International Journal of Electrochemical Science

JF - International Journal of Electrochemical Science

ER -

Nitrogen doped Carbon Nanotubes as Electrocatalyst for Oxygen Reduction Reaction

Abstract

Keywords

Fingerprint

Cite this