Porphyrin Aerogel Catalysts for Oxygen Reduction Reaction in Anion-Exchange Membrane Fuel Cells

Noam Zion; John C. Douglin; David A. Cullen; Piotr Zelenay; Dario R. Dekel; Lior Elbaz

doi:10.1002/adfm.202100963

Porphyrin Aerogel Catalysts for Oxygen Reduction Reaction in Anion-Exchange Membrane Fuel Cells

Noam Zion, John C. Douglin, David A. Cullen, Piotr Zelenay, Dario R. Dekel, Lior Elbaz

Department of Chemistry

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

75 Scopus citations

Abstract

Platinum group metal (PGM)-free catalysts for oxygen reduction reaction have shown high oxygen reduction reaction activity in alkaline media. In order to further increase the power density of anion-exchange membrane fuel cells (AEMFCs), PGM-free catalysts need to have a high site density to reach high current densities. Herein, synthesis, characterization, and utilization of heat-treated iron porphyrin aerogels are reported as cathode catalysts in AEMFCs. The heat treatment effect is thoroughly studied and characterized using several techniques, and the best performing aerogel is studied in AEMFC, showing excellent performance, reaching a peak power density of 580 mW cm⁻² and a limiting current density of as high as 2.0 A cm⁻², which can be considered the state-of-the-art for PGM-free based AEMFCs.

Original language	English
Article number	2100963
Journal	Advanced Functional Materials
Volume	31
Issue number	24
DOIs	https://doi.org/10.1002/adfm.202100963
State	Published - 9 Jun 2021

Bibliographical note

Publisher Copyright:
© 2021 Wiley-VCH GmbH

Funding

Electron microscopy was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. This work was partially funded by the Nancy & Stephan Grand Technion Energy Program (GTEP); by the European Union's Horizon 2020 research and innovation program [Grant No. 721065]; by the Israel Science Foundation (ISF) [Grant Nos. 1441/17 and 1481/17]; and by the Ministry of National Infrastructure, Energy and Water Resources of Israel through Grants Nos. 3–15204, 3—16020, and No. 3–16686; by the US-Israel Binational Science Foundation Grant no. 2016385. The authors would also like to acknowledge the financial support of the Planning & Budgeting Committee/ISRAEL Council for Higher Education (CHE) and Fuel Choice Initiative (Prime Minister Office of ISRAEL), within the framework of “Israel Fuel Cells Consortium (IFCC)” which is part of the “Israel National Research Center for Electrochemical Propulsion (INREP)”. Finally, special thanks to Prof. John Varcoe (Surrey University, UK) for the generous supply of the membrane for the AEMFC tests. This research was supported in part by the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE), Hydrogen and Fuel Cell Technologies Office (HFTO), through Electrocatalysis Consortium (ElectroCat). Electron microscopy was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. This work was partially funded by the Nancy & Stephan Grand Technion Energy Program (GTEP); by the European Union's Horizon 2020 research and innovation program [Grant No. 721065]; by the Israel Science Foundation (ISF) [Grant Nos. 1441/17 and 1481/17]; and by the Ministry of National Infrastructure, Energy and Water Resources of Israel through Grants Nos. 3–15204, 3—16020, and No. 3–16686; by the US‐Israel Binational Science Foundation Grant no. 2016385. The authors would also like to acknowledge the financial support of the Planning & Budgeting Committee/ISRAEL Council for Higher Education (CHE) and Fuel Choice Initiative (Prime Minister Office of ISRAEL), within the framework of “Israel Fuel Cells Consortium (IFCC)” which is part of the “Israel National Research Center for Electrochemical Propulsion (INREP)”. Finally, special thanks to Prof. John Varcoe (Surrey University, UK) for the generous supply of the membrane for the AEMFC tests. This research was supported in part by the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE), Hydrogen and Fuel Cell Technologies Office (HFTO), through Electrocatalysis Consortium (ElectroCat).

Funders	Funder number
Electrocatalysis Consortium
Fuel Choice Initiative
IFCC
Israel Fuel Cells Consortium
Prime Minister office of Israel
U.S. Department of Energy
Office of Science
Office of Energy Efficiency and Renewable Energy
Hydrogen and Fuel Cell Technologies Office
United States-Israel Binational Science Foundation	2016385
Israel Science Foundation	1481/17, 1441/17
Horizon 2020	721065
Ministry of National Infrastructure, Energy and Water Resources	3–16686, 3—16020, 3–15204
Israel National Research Center for Electrochemical Propulsion

Keywords

AEMFC
ORR
aerogels
electrocatalysis
porphyrins

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10.1002/adfm.202100963

Cite this

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abstract = "Platinum group metal (PGM)-free catalysts for oxygen reduction reaction have shown high oxygen reduction reaction activity in alkaline media. In order to further increase the power density of anion-exchange membrane fuel cells (AEMFCs), PGM-free catalysts need to have a high site density to reach high current densities. Herein, synthesis, characterization, and utilization of heat-treated iron porphyrin aerogels are reported as cathode catalysts in AEMFCs. The heat treatment effect is thoroughly studied and characterized using several techniques, and the best performing aerogel is studied in AEMFC, showing excellent performance, reaching a peak power density of 580 mW cm−2 and a limiting current density of as high as 2.0 A cm−2, which can be considered the state-of-the-art for PGM-free based AEMFCs.",

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AU - Dekel, Dario R.

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Porphyrin Aerogel Catalysts for Oxygen Reduction Reaction in Anion-Exchange Membrane Fuel Cells

Abstract

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Keywords

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