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Biomass-based carbon support for non-precious metal ORR catalysts

Hülstede, Julia and Schonvogel, Dana and Wagner, Peter and Dyck, Alexander and Wark, Michael (2019) Biomass-based carbon support for non-precious metal ORR catalysts. Electrolysis and Fuel Cell Discussions, 15.-18. Sep. 2019, La Frande Motte, France.

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Official URL: http://www.efcd2019.eu/index.php

Abstract

Aim of this study is to fabricate a novel biomass-based carbon support for Fe-N-C catalysts with enlarged surface area and porosity compared to common carbon blacks to promote higher active site density and, therefore, higher volumetric activity. Strawbased activated carbon can provide a high surface area of 2016 m2/g, in comparison to raw oil-based commercial carbon blacks like Vulcan® or Black Pearls® with surface areas of 213 m2/g [5] and 1379 m2/g. Synthesis of sustainable porous carbon support is done by pyrolysis of straw followed by KOH activation. A comparison of biomass-based activated carbon as novel support on one hand and fossil-based carbon black on other hand in Fe-N-C catalysts is given in terms of physical characterization. This includes the specific surface area and pore size distribution as well as the determination of elemental composition and functional groups by XPS and FT-IR spectroscopy. Furthermore, study of the porous morphology by TEM and SEM is shown. The synthesis of final Fe-N-C is carried out by impregnation of carbon support with iron acetate and cyanamide followed by pyrolysis at 900°C, acid leaching and a second pyrolysis.

Item URL in elib:https://elib.dlr.de/129353/
Document Type:Conference or Workshop Item (Poster)
Title:Biomass-based carbon support for non-precious metal ORR catalysts
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hülstede, Juliajulia.huelstede (at) dlr.dehttps://orcid.org/0000-0001-7822-8425
Schonvogel, Danadana.schonvogel (at) dlr.dehttps://orcid.org/0000-0002-2485-740X
Wagner, Peterp.wagner (at) dlr.dehttps://orcid.org/0000-0002-5644-9881
Dyck, Alexanderalexander.dyck (at) dlr.dehttps://orcid.org/0000-0002-5010-8226
Wark, MichaelCarl von Ossietzky Universityhttps://orcid.org/0000-0002-8725-0103
Date:15 September 2019
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Fe-N-C, Biomass, ORR, non-PGM, HT-PEMFC, pyrolysis
Event Title:Electrolysis and Fuel Cell Discussions
Event Location:La Frande Motte, France
Event Type:international Conference
Event Dates:15.-18. Sep. 2019
HGF - Research field:Energy
HGF - Program:Technology, Innovation and Society
HGF - Program Themes:Renewable Energy and Material Resources for Sustainable Futures - Integrating at Different Scales
DLR - Research area:Energy
DLR - Program:E SY - Energy Systems Analysis
DLR - Research theme (Project):E - Energy Systems Technology (old)
Location: Oldenburg
Institutes and Institutions:Institute of Networked Energy Systems > Fuel Cells
Deposited By: Lorenz, Julian
Deposited On:28 Oct 2019 17:45
Last Modified:25 May 2020 10:22

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