Pyrolyzed CoN4-chelate as an electrocatalyst for oxygen reduction reaction in acid media

Hui Juan Zhang; Xianxia Yuan; Liangliang Sun; Xin Zeng; Qi Zhong Jiang; Zongping Shao; Zi Feng Ma

doi:10.1016/j.ijhydene.2009.05.032

Pyrolyzed CoN₄-chelate as an electrocatalyst for oxygen reduction reaction in acid media

Hui Juan Zhang, Xianxia Yuan, Liangliang Sun, Xin Zeng, Qi Zhong Jiang, Zongping Shao, Zi Feng Ma

College of Chemical Engineering

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

67 Scopus citations

Abstract

A novel platinum-free electrocatalyst CoTETA/C for oxygen reduction reaction (ORR) was prepared from pyrolysis of carbon-supported cobalt triethylenetetramine chelate under an inert atmosphere. X-ray diffraction (XRD) measurement showed that nanometallic face-centered cubic (fcc) crystalline α-Co phase embedded in graphitic carbon was present on the pore surface of this catalyst. Cyclic voltammogram experiment showed that the ORR peak potential appears at 710 mV (vs. NHE) in oxygen-saturated acidic media (0.5 M H₂SO₄). The Koutecky-Levich analysis indicated that the ORR follows the first-order kinetic reaction and the ORR proceeds via both the two-electron reduction and the four-electron reduction, while the latter is the main process. The actual performance of a single cell with the obtained CoTETA/C electrocatalyst was examined under a hydrogen-oxygen fuel cell system, and the maximal output power density reached 135 mW cm^-2 at 25 °C.

Original language	English
Pages (from-to)	2900-2903
Number of pages	4
Journal	International Journal of Hydrogen Energy
Volume	35
Issue number	7
DOIs	https://doi.org/10.1016/j.ijhydene.2009.05.032
State	Published - Apr 2010

Keywords

Chelate
CoTETA/C
Non-noble metal electrocatalyst
Oxygen reduction reaction (ORR)
PEMFC

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.ijhydene.2009.05.032

Cite this

@article{4e5389a60fe74327bed430a006b8807a,

title = "Pyrolyzed CoN4-chelate as an electrocatalyst for oxygen reduction reaction in acid media",

abstract = "A novel platinum-free electrocatalyst CoTETA/C for oxygen reduction reaction (ORR) was prepared from pyrolysis of carbon-supported cobalt triethylenetetramine chelate under an inert atmosphere. X-ray diffraction (XRD) measurement showed that nanometallic face-centered cubic (fcc) crystalline α-Co phase embedded in graphitic carbon was present on the pore surface of this catalyst. Cyclic voltammogram experiment showed that the ORR peak potential appears at 710 mV (vs. NHE) in oxygen-saturated acidic media (0.5 M H2SO4). The Koutecky-Levich analysis indicated that the ORR follows the first-order kinetic reaction and the ORR proceeds via both the two-electron reduction and the four-electron reduction, while the latter is the main process. The actual performance of a single cell with the obtained CoTETA/C electrocatalyst was examined under a hydrogen-oxygen fuel cell system, and the maximal output power density reached 135 mW cm-2 at 25 °C.",

keywords = "Chelate, CoTETA/C, Non-noble metal electrocatalyst, Oxygen reduction reaction (ORR), PEMFC",

author = "Zhang, {Hui Juan} and Xianxia Yuan and Liangliang Sun and Xin Zeng and Jiang, {Qi Zhong} and Zongping Shao and Ma, {Zi Feng}",

year = "2010",

month = apr,

doi = "10.1016/j.ijhydene.2009.05.032",

language = "英语",

volume = "35",

pages = "2900--2903",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier Ltd",

number = "7",

}

TY - JOUR

T1 - Pyrolyzed CoN4-chelate as an electrocatalyst for oxygen reduction reaction in acid media

AU - Zhang, Hui Juan

AU - Yuan, Xianxia

AU - Sun, Liangliang

AU - Zeng, Xin

AU - Jiang, Qi Zhong

AU - Shao, Zongping

AU - Ma, Zi Feng

PY - 2010/4

Y1 - 2010/4

N2 - A novel platinum-free electrocatalyst CoTETA/C for oxygen reduction reaction (ORR) was prepared from pyrolysis of carbon-supported cobalt triethylenetetramine chelate under an inert atmosphere. X-ray diffraction (XRD) measurement showed that nanometallic face-centered cubic (fcc) crystalline α-Co phase embedded in graphitic carbon was present on the pore surface of this catalyst. Cyclic voltammogram experiment showed that the ORR peak potential appears at 710 mV (vs. NHE) in oxygen-saturated acidic media (0.5 M H2SO4). The Koutecky-Levich analysis indicated that the ORR follows the first-order kinetic reaction and the ORR proceeds via both the two-electron reduction and the four-electron reduction, while the latter is the main process. The actual performance of a single cell with the obtained CoTETA/C electrocatalyst was examined under a hydrogen-oxygen fuel cell system, and the maximal output power density reached 135 mW cm-2 at 25 °C.

AB - A novel platinum-free electrocatalyst CoTETA/C for oxygen reduction reaction (ORR) was prepared from pyrolysis of carbon-supported cobalt triethylenetetramine chelate under an inert atmosphere. X-ray diffraction (XRD) measurement showed that nanometallic face-centered cubic (fcc) crystalline α-Co phase embedded in graphitic carbon was present on the pore surface of this catalyst. Cyclic voltammogram experiment showed that the ORR peak potential appears at 710 mV (vs. NHE) in oxygen-saturated acidic media (0.5 M H2SO4). The Koutecky-Levich analysis indicated that the ORR follows the first-order kinetic reaction and the ORR proceeds via both the two-electron reduction and the four-electron reduction, while the latter is the main process. The actual performance of a single cell with the obtained CoTETA/C electrocatalyst was examined under a hydrogen-oxygen fuel cell system, and the maximal output power density reached 135 mW cm-2 at 25 °C.

KW - Chelate

KW - CoTETA/C

KW - Non-noble metal electrocatalyst

KW - Oxygen reduction reaction (ORR)

KW - PEMFC

UR - http://www.scopus.com/inward/record.url?scp=77951022537&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2009.05.032

DO - 10.1016/j.ijhydene.2009.05.032

M3 - 文章

AN - SCOPUS:77951022537

SN - 0360-3199

VL - 35

SP - 2900

EP - 2903

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 7

ER -