Schonvogel, Dana und Nowotny, Manuel und Woriescheck, Tim und Multhaupt, Hendrik und Wagner, Peter und Dyck, Alexander und Agert, Carsten und Wark, Michael (2019) Hydrothermal Carbonization-Derived Carbon from Waste Biomass as Renewable Pt Support for Fuel Cell Applications: Role of Carbon Activation. Energy Technology, 7 (11), Seite 1900344. Wiley. doi: 10.1002/ente.201900344. ISSN 2194-4288.
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Offizielle URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/ente.201900344
Kurzfassung
Pt catalysts in proton exchange membrane fuel cells (PEMFC) typically use carbon blacks like Vulcan® based on fossil sources. Thus, an important research task is using sustainable supports in PEMFCs. Hydrothermal carbonization (HTC) converts biomasses into chars, which are possible substitutes for fossil-based carbons. In this study, a Pt catalyst derived from HTC of coconut shells is developed for catalysis of O2 reduction in acidic media. Thermal activation enlarges the specific surface area by factor of 7 to 546 m2 g-1, and generates electrical conductivity making the material suitable for catalysis. 1.8±0.5 nm Pt particles are well-distributed on the activated carbon. Cyclic and CO stripping voltammetry show an electrochemical surface area (ECSA) of 69±21 m2 gPt -1, being almost identical to that of the commercial catalyst using Vulcan® (69±6 m2 gPt-1). Although ECSAs are highly comparable, the activity for O2 reduction is lower compared to the commercial catalyst. HTC derived carbon has a lower degree of graphitization, less functional oxygen groups on its surface and a lower electrical conductivity than Vulcan®. This suggests different Pt–support interactions.
elib-URL des Eintrags: | https://elib.dlr.de/128904/ | ||||||||||||||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||||||||||
Titel: | Hydrothermal Carbonization-Derived Carbon from Waste Biomass as Renewable Pt Support for Fuel Cell Applications: Role of Carbon Activation | ||||||||||||||||||||||||||||||||||||
Autoren: |
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Datum: | 1 August 2019 | ||||||||||||||||||||||||||||||||||||
Erschienen in: | Energy Technology | ||||||||||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||||||||||
Band: | 7 | ||||||||||||||||||||||||||||||||||||
DOI: | 10.1002/ente.201900344 | ||||||||||||||||||||||||||||||||||||
Seitenbereich: | Seite 1900344 | ||||||||||||||||||||||||||||||||||||
Verlag: | Wiley | ||||||||||||||||||||||||||||||||||||
ISSN: | 2194-4288 | ||||||||||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||||||||||
Stichwörter: | biomass, fuel cells, oxygen reduction reaction, platinum, supported catalysts | ||||||||||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||||||||||||||||||||||||||
HGF - Programm: | TIG Technologie, Innovation und Gesellschaft | ||||||||||||||||||||||||||||||||||||
HGF - Programmthema: | Erneuerbare Energie- und Materialressourcen für eine nachhaltige Zukunft | ||||||||||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | E SY - Energiesystemanalyse | ||||||||||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Energiesystemtechnik (alt) | ||||||||||||||||||||||||||||||||||||
Standort: | Oldenburg | ||||||||||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Vernetzte Energiesysteme > Brennstoffzellen | ||||||||||||||||||||||||||||||||||||
Hinterlegt von: | Lorenz, Julian | ||||||||||||||||||||||||||||||||||||
Hinterlegt am: | 28 Okt 2019 17:51 | ||||||||||||||||||||||||||||||||||||
Letzte Änderung: | 31 Okt 2023 14:03 |
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