Temperature dependence of oxygen reduction mechanism on a titanium oxide-based catalyst made from oxy-titanium tetra-pyrazino-porphyrazine using carbon nano-tubes as support in acidic solution

Tomoaki Hayashi, Akimitsu Ishihara, Takaaki Nagai, Masazumi Arao, Hideto Imai, Yuji Kohno, Koichi Matsuzawa, Shigenori Mitsushima, Ken Ichiro Ota

  • 1 Citations

Abstract

Kinetic analysis of the oxygen reduction reaction (ORR) was performed on a titanium oxide-based cathode in 0.1 M HClO4 based on the Damjanovic model by using a rotating ring disk electrode, as proposed by Hsueh et al. The titanium oxide-based cathode, produced from oxy-titanium tetra-pyrazino-porphyrazine via oxidation under a low partial pressure of oxygen using carbon nano-tubes as support, showed high reactivity in the four-electron reduction of O2. In addition, we applied Hsueh's method to the study of the temperature dependence of the ORR for the first time. The activation energies of the four-electron reduction reaction at an overpotential of -0.40 V and the two-electron reduction reaction at an overpotential of -0.50 V were calculated to be 45.6 and 45.5 kJ mol-1, respectively.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalElectrochimica Acta
Volume209
DOIs
StatePublished - 2016 Aug 10

Fingerprint

Oxygen
Titanium oxides
Electrons
Cathodes
Titanium
Carbon
Temperature
Partial pressure
Activation energy
Oxidation
Electrodes
Catalysts
Kinetics

Keywords

  • non-platinum cathode
  • oxygen reduction reaction
  • polymer electrolyte fuel cell
  • temperature dependence
  • titanium oxide

ASJC Scopus subject areas

  • Electrochemistry
  • Chemical Engineering(all)

Cite this

Temperature dependence of oxygen reduction mechanism on a titanium oxide-based catalyst made from oxy-titanium tetra-pyrazino-porphyrazine using carbon nano-tubes as support in acidic solution. / Hayashi, Tomoaki; Ishihara, Akimitsu; Nagai, Takaaki; Arao, Masazumi; Imai, Hideto; Kohno, Yuji; Matsuzawa, Koichi; Mitsushima, Shigenori; Ota, Ken Ichiro.

In: Electrochimica Acta, Vol. 209, 10.08.2016, p. 1-6.

Research output: Contribution to journalArticle

Hayashi, Tomoaki; Ishihara, Akimitsu; Nagai, Takaaki; Arao, Masazumi; Imai, Hideto; Kohno, Yuji; Matsuzawa, Koichi; Mitsushima, Shigenori; Ota, Ken Ichiro / Temperature dependence of oxygen reduction mechanism on a titanium oxide-based catalyst made from oxy-titanium tetra-pyrazino-porphyrazine using carbon nano-tubes as support in acidic solution.

In: Electrochimica Acta, Vol. 209, 10.08.2016, p. 1-6.

Research output: Contribution to journalArticle

@article{82eef217aac44ec3bc3d58e52dae7ae3,
title = "Temperature dependence of oxygen reduction mechanism on a titanium oxide-based catalyst made from oxy-titanium tetra-pyrazino-porphyrazine using carbon nano-tubes as support in acidic solution",
keywords = "non-platinum cathode, oxygen reduction reaction, polymer electrolyte fuel cell, temperature dependence, titanium oxide",
author = "Tomoaki Hayashi and Akimitsu Ishihara and Takaaki Nagai and Masazumi Arao and Hideto Imai and Yuji Kohno and Koichi Matsuzawa and Shigenori Mitsushima and Ota, {Ken Ichiro}",
year = "2016",
month = "8",
doi = "10.1016/j.electacta.2016.05.068",
volume = "209",
pages = "1--6",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Temperature dependence of oxygen reduction mechanism on a titanium oxide-based catalyst made from oxy-titanium tetra-pyrazino-porphyrazine using carbon nano-tubes as support in acidic solution

AU - Hayashi,Tomoaki

AU - Ishihara,Akimitsu

AU - Nagai,Takaaki

AU - Arao,Masazumi

AU - Imai,Hideto

AU - Kohno,Yuji

AU - Matsuzawa,Koichi

AU - Mitsushima,Shigenori

AU - Ota,Ken Ichiro

PY - 2016/8/10

Y1 - 2016/8/10

N2 - Kinetic analysis of the oxygen reduction reaction (ORR) was performed on a titanium oxide-based cathode in 0.1 M HClO4 based on the Damjanovic model by using a rotating ring disk electrode, as proposed by Hsueh et al. The titanium oxide-based cathode, produced from oxy-titanium tetra-pyrazino-porphyrazine via oxidation under a low partial pressure of oxygen using carbon nano-tubes as support, showed high reactivity in the four-electron reduction of O2. In addition, we applied Hsueh's method to the study of the temperature dependence of the ORR for the first time. The activation energies of the four-electron reduction reaction at an overpotential of -0.40 V and the two-electron reduction reaction at an overpotential of -0.50 V were calculated to be 45.6 and 45.5 kJ mol-1, respectively.

AB - Kinetic analysis of the oxygen reduction reaction (ORR) was performed on a titanium oxide-based cathode in 0.1 M HClO4 based on the Damjanovic model by using a rotating ring disk electrode, as proposed by Hsueh et al. The titanium oxide-based cathode, produced from oxy-titanium tetra-pyrazino-porphyrazine via oxidation under a low partial pressure of oxygen using carbon nano-tubes as support, showed high reactivity in the four-electron reduction of O2. In addition, we applied Hsueh's method to the study of the temperature dependence of the ORR for the first time. The activation energies of the four-electron reduction reaction at an overpotential of -0.40 V and the two-electron reduction reaction at an overpotential of -0.50 V were calculated to be 45.6 and 45.5 kJ mol-1, respectively.

KW - non-platinum cathode

KW - oxygen reduction reaction

KW - polymer electrolyte fuel cell

KW - temperature dependence

KW - titanium oxide

UR - http://www.scopus.com/inward/record.url?scp=84969884361&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84969884361&partnerID=8YFLogxK

U2 - 10.1016/j.electacta.2016.05.068

DO - 10.1016/j.electacta.2016.05.068

M3 - Article

VL - 209

SP - 1

EP - 6

JO - Electrochimica Acta

T2 - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

ER -