Co-electrodeposited Mesoporous PtM (M=Co, Ni, Cu) as an Active Catalyst for Oxygen Reduction Reaction in a Polymer Electrolyte Membrane Fuel Cell

Olli Sorsa; Henrik Romar; Ulla Lassi; Tanja Kallio

doi:10.1016/j.electacta.2017.01.158

Co-electrodeposited Mesoporous PtM (M=Co, Ni, Cu) as an Active Catalyst for Oxygen Reduction Reaction in a Polymer Electrolyte Membrane Fuel Cell

Olli Sorsa, Henrik Romar, Ulla Lassi, Tanja Kallio

Not published at VTT

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

39 Citations (Scopus)

Abstract

Mesoporous thin films of PtCo, PtNi and PtCu are prepared by a single-step potentiostatic electrodeposition on a carbon substrate. Films are characterized by SEM, XRD, XRF and BET, and their activity for oxygen reduction reaction (ORR) is studied in an acidic three-electrode cell. The results are compared with both a commercial nanoparticle Pt/C catalyst and a Pt catalyst prepared using the same method. Additionally, the ORR activity of PtCo is studied in a fuel cell. The onset potential of ORR is found to be higher for all the electrodeposited catalysts compared to commercial Pt/C. The ORR activity of mesoporous Pt is found to be linearly dependent on the amount of deposited platinum within a platinum loading range of 0.1−0.5 mg cm⁻². All the mesoporous catalysts exhibited higher mass activity towards ORR than commercial Pt/C. Of the studied catalysts, PtCo is found to have the highest durability. Similar results are obtained in fuel cell experiments as PtCo exhibits enhanced durability and activity towards ORR, peak powers being 60, 70 and 90 mW g_Pt⁻¹ for commercial Pt/C, mesoporous Pt and mesoporous PtCo, respectively.

Original language	English
Pages (from-to)	49-57
Number of pages	9
Journal	Electrochimica Acta
Volume	230
DOIs	https://doi.org/10.1016/j.electacta.2017.01.158
Publication status	Published - 10 Mar 2017
MoE publication type	A1 Journal article-refereed

Keywords

Electrocatalysis
Electrodeposition
Fuel cells
Mesoporous
Oxygen reduction reaction

UN SDGs

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

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10.1016/j.electacta.2017.01.158

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title = "Co-electrodeposited Mesoporous PtM (M=Co, Ni, Cu) as an Active Catalyst for Oxygen Reduction Reaction in a Polymer Electrolyte Membrane Fuel Cell",

abstract = "Mesoporous thin films of PtCo, PtNi and PtCu are prepared by a single-step potentiostatic electrodeposition on a carbon substrate. Films are characterized by SEM, XRD, XRF and BET, and their activity for oxygen reduction reaction (ORR) is studied in an acidic three-electrode cell. The results are compared with both a commercial nanoparticle Pt/C catalyst and a Pt catalyst prepared using the same method. Additionally, the ORR activity of PtCo is studied in a fuel cell. The onset potential of ORR is found to be higher for all the electrodeposited catalysts compared to commercial Pt/C. The ORR activity of mesoporous Pt is found to be linearly dependent on the amount of deposited platinum within a platinum loading range of 0.1−0.5 mg cm−2. All the mesoporous catalysts exhibited higher mass activity towards ORR than commercial Pt/C. Of the studied catalysts, PtCo is found to have the highest durability. Similar results are obtained in fuel cell experiments as PtCo exhibits enhanced durability and activity towards ORR, peak powers being 60, 70 and 90 mW gPt−1 for commercial Pt/C, mesoporous Pt and mesoporous PtCo, respectively.",

keywords = "Electrocatalysis, Electrodeposition, Fuel cells, Mesoporous, Oxygen reduction reaction",

author = "Olli Sorsa and Henrik Romar and Ulla Lassi and Tanja Kallio",

note = "Funding Information: The authors would like to thank the Academy of Finland (the DEMEC, SUPER and CloseLoop projects) and Freeport Cobalt for funding this work. Also, Mr. Esko Ahvenniemi, Ms. Anne Tanskanen and Mr. Taneli Tiittanen are acknowledged for helping with the characterization and Ms. Nguyet Doan for helping with the synthesis. This study made use of the facilities of Aalto University Nanomicroscopy Center (Aalto-NMC). Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

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doi = "10.1016/j.electacta.2017.01.158",

language = "English",

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T1 - Co-electrodeposited Mesoporous PtM (M=Co, Ni, Cu) as an Active Catalyst for Oxygen Reduction Reaction in a Polymer Electrolyte Membrane Fuel Cell

AU - Sorsa, Olli

AU - Romar, Henrik

AU - Lassi, Ulla

AU - Kallio, Tanja

N1 - Funding Information: The authors would like to thank the Academy of Finland (the DEMEC, SUPER and CloseLoop projects) and Freeport Cobalt for funding this work. Also, Mr. Esko Ahvenniemi, Ms. Anne Tanskanen and Mr. Taneli Tiittanen are acknowledged for helping with the characterization and Ms. Nguyet Doan for helping with the synthesis. This study made use of the facilities of Aalto University Nanomicroscopy Center (Aalto-NMC). Publisher Copyright: © 2017 Elsevier Ltd Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

PY - 2017/3/10

Y1 - 2017/3/10

N2 - Mesoporous thin films of PtCo, PtNi and PtCu are prepared by a single-step potentiostatic electrodeposition on a carbon substrate. Films are characterized by SEM, XRD, XRF and BET, and their activity for oxygen reduction reaction (ORR) is studied in an acidic three-electrode cell. The results are compared with both a commercial nanoparticle Pt/C catalyst and a Pt catalyst prepared using the same method. Additionally, the ORR activity of PtCo is studied in a fuel cell. The onset potential of ORR is found to be higher for all the electrodeposited catalysts compared to commercial Pt/C. The ORR activity of mesoporous Pt is found to be linearly dependent on the amount of deposited platinum within a platinum loading range of 0.1−0.5 mg cm−2. All the mesoporous catalysts exhibited higher mass activity towards ORR than commercial Pt/C. Of the studied catalysts, PtCo is found to have the highest durability. Similar results are obtained in fuel cell experiments as PtCo exhibits enhanced durability and activity towards ORR, peak powers being 60, 70 and 90 mW gPt−1 for commercial Pt/C, mesoporous Pt and mesoporous PtCo, respectively.

AB - Mesoporous thin films of PtCo, PtNi and PtCu are prepared by a single-step potentiostatic electrodeposition on a carbon substrate. Films are characterized by SEM, XRD, XRF and BET, and their activity for oxygen reduction reaction (ORR) is studied in an acidic three-electrode cell. The results are compared with both a commercial nanoparticle Pt/C catalyst and a Pt catalyst prepared using the same method. Additionally, the ORR activity of PtCo is studied in a fuel cell. The onset potential of ORR is found to be higher for all the electrodeposited catalysts compared to commercial Pt/C. The ORR activity of mesoporous Pt is found to be linearly dependent on the amount of deposited platinum within a platinum loading range of 0.1−0.5 mg cm−2. All the mesoporous catalysts exhibited higher mass activity towards ORR than commercial Pt/C. Of the studied catalysts, PtCo is found to have the highest durability. Similar results are obtained in fuel cell experiments as PtCo exhibits enhanced durability and activity towards ORR, peak powers being 60, 70 and 90 mW gPt−1 for commercial Pt/C, mesoporous Pt and mesoporous PtCo, respectively.

KW - Electrocatalysis

KW - Electrodeposition

KW - Fuel cells

KW - Mesoporous

KW - Oxygen reduction reaction

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DO - 10.1016/j.electacta.2017.01.158

M3 - Article

AN - SCOPUS:85011385257

SN - 0013-4686

VL - 230

SP - 49

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JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Co-electrodeposited Mesoporous PtM (M=Co, Ni, Cu) as an Active Catalyst for Oxygen Reduction Reaction in a Polymer Electrolyte Membrane Fuel Cell

Abstract

Keywords

UN SDGs

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