Studies on Co-based catalysts supported on modified carbon substrates for PEMFC cathodes

Nalini P. Subramanian; Swaminatha P. Kumaraguru; Hector Colon-Mercado; Hansung Kim; Branko N. Popov; Timothy Black; Donna A. Chen

doi:10.1016/j.jpowsour.2005.07.031

Studies on Co-based catalysts supported on modified carbon substrates for PEMFC cathodes

Nalini P. Subramanian, Swaminatha P. Kumaraguru, Hector Colon-Mercado, Hansung Kim, Branko N. Popov, Timothy Black, Donna A. Chen

Department of Chemical and Biomolecular Engineering

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

167 Citations (Scopus)

Abstract

Cobalt based non-precious metal catalysts were prepared by supporting cobalt-ethylene diamine complex on carbon followed by a heat treatment at elevated temperatures (800 °C). Surface oxygen groups on carbon were introduced with HNO₃ oxidation. Co catalysts supported on oxidized carbon showed improved activity and selectivity towards four-electron reduction of molecular oxygen. Quinone groups introduced by nitric acid treatment, in addition to increasing the dispersion of the chelate complexes, play a role in forming the active site for oxygen reduction.

Original language	English
Pages (from-to)	56-63
Number of pages	8
Journal	Journal of Power Sources
Volume	157
Issue number	1
DOIs	https://doi.org/10.1016/j.jpowsour.2005.07.031
Publication status	Published - 2006 Jun 19

Bibliographical note

Funding Information:
Financial support by Department of Energy (DOE) is gratefully acknowledged.

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

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

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10.1016/j.jpowsour.2005.07.031

Cite this

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abstract = "Cobalt based non-precious metal catalysts were prepared by supporting cobalt-ethylene diamine complex on carbon followed by a heat treatment at elevated temperatures (800 °C). Surface oxygen groups on carbon were introduced with HNO3 oxidation. Co catalysts supported on oxidized carbon showed improved activity and selectivity towards four-electron reduction of molecular oxygen. Quinone groups introduced by nitric acid treatment, in addition to increasing the dispersion of the chelate complexes, play a role in forming the active site for oxygen reduction.",

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AU - Subramanian, Nalini P.

AU - Kumaraguru, Swaminatha P.

AU - Colon-Mercado, Hector

AU - Kim, Hansung

AU - Popov, Branko N.

AU - Black, Timothy

AU - Chen, Donna A.

N1 - Funding Information: Financial support by Department of Energy (DOE) is gratefully acknowledged.

PY - 2006/6/19

Y1 - 2006/6/19

N2 - Cobalt based non-precious metal catalysts were prepared by supporting cobalt-ethylene diamine complex on carbon followed by a heat treatment at elevated temperatures (800 °C). Surface oxygen groups on carbon were introduced with HNO3 oxidation. Co catalysts supported on oxidized carbon showed improved activity and selectivity towards four-electron reduction of molecular oxygen. Quinone groups introduced by nitric acid treatment, in addition to increasing the dispersion of the chelate complexes, play a role in forming the active site for oxygen reduction.

AB - Cobalt based non-precious metal catalysts were prepared by supporting cobalt-ethylene diamine complex on carbon followed by a heat treatment at elevated temperatures (800 °C). Surface oxygen groups on carbon were introduced with HNO3 oxidation. Co catalysts supported on oxidized carbon showed improved activity and selectivity towards four-electron reduction of molecular oxygen. Quinone groups introduced by nitric acid treatment, in addition to increasing the dispersion of the chelate complexes, play a role in forming the active site for oxygen reduction.

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Studies on Co-based catalysts supported on modified carbon substrates for PEMFC cathodes

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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