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How Effective Is Graphitization of Biomasses for the Carbon Stability of Pt/C ORR Catalysts?

Schmies, Henrike and Bengen, Nina and Müller-Hülstede, Julia and Ibitowa, Olayinka Ahmed and Wagner, Peter and Wark, Michael (2023) How Effective Is Graphitization of Biomasses for the Carbon Stability of Pt/C ORR Catalysts? Catalysts, 13 (2). Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/catal13020343. ISSN 2073-4344.

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Official URL: https://www.mdpi.com/2073-4344/13/2/343


atalysts for the oxygen reduction reaction (ORR) in PEM fuel cells are commonly constituted of Pt-based nanoparticles and a carbon support originating from fossil resources. In order to employ a more sustainable carbon support, activated sawdust was chosen in this study. This was firstly steam-activated at 750 °C and then thermally treated at elevated temperatures up to 2800 °C and reducing conditions at 1100 °C. Various physical characterization methods were applied to systematically relate treatment parameters to surface and structural properties of the carbon material. Deposition of small Pt nanoparticles on the biochar-based supports yielded in ORR active catalysts which were analyzed by thin-film rotating disc electrode measurements. The activity and stability towards the ORR of these novel catalysts was compared to a commercial raw oil-based Pt/C and the influence of support modification on the ORR performance was discussed.

Item URL in elib:https://elib.dlr.de/193800/
Document Type:Article
Title:How Effective Is Graphitization of Biomasses for the Carbon Stability of Pt/C ORR Catalysts?
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Schmies, HenrikeUNSPECIFIEDhttps://orcid.org/0000-0002-6565-1280UNSPECIFIED
Müller-Hülstede, JuliaUNSPECIFIEDhttps://orcid.org/0000-0001-7822-8425UNSPECIFIED
Ibitowa, Olayinka AhmedUNSPECIFIEDhttps://orcid.org/0000-0002-4981-3200UNSPECIFIED
Wagner, PeterUNSPECIFIEDhttps://orcid.org/0000-0002-5644-9881UNSPECIFIED
Wark, MichaelUNSPECIFIEDhttps://orcid.org/0000-0002-8725-0103UNSPECIFIED
Date:3 February 2023
Journal or Publication Title:Catalysts
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Series Name:Recent Advanced on Electrocatalyst for Oxygen Reduction Application
Keywords:biomass; carbon support; PEMFC; ORR; stability; sawdust; activated biomass; platinum catalyst; thermal treatment; graphitization
HGF - Research field:Energy
HGF - Program:Materials and Technologies for the Energy Transition
HGF - Program Themes:Electrochemical Energy Storage
DLR - Research area:Energy
DLR - Program:E VS - Combustion Systems
DLR - Research theme (Project):E - Materials for Electrochemical Energy Storage
Location: Oldenburg
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Schmies, Henrike
Deposited On:17 Feb 2023 11:35
Last Modified:17 Feb 2023 11:35

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