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Lowering the PGM content of PEM Electrolysis by novel Electrocatalyst with superior Activity

Friedrich, Kaspar Andreas and Lettenmeier, Philipp and Stiber, Svenja and Ansar, Syed Asif and Wang, Li and Majchel, Jan and Gago, Aldo (2018) Lowering the PGM content of PEM Electrolysis by novel Electrocatalyst with superior Activity. f-cell 2018, 10. -11. Sep. 2018, Stuttgart, Deutschland.

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Abstract

Development of electrocatalyst for PEM electrolysis ist important to ascertain the sustainability of this technology. The main conclusions in this presentation are: • Lowering Ir metal content in MEAs is possible with more active catalyst and with supported catalyst • Cost-effective and environmentally friendly synthesis of anode catalysts for PEM electrolyzers • 5-fold higher activity of IrOx-Ir vs. Ir-black. The enhancement is attributed to the ligand effect and low coordinate sites • The use of SnO2:Sb-Aerogel allows decreasing more than 70 wt.% of Ir in the catalyst layer and improves stability • Electrochemical leaching of Ru from metallic Ir0.7Ru0.3 leads to 13-fold higher activity compared to the state-of-the-art Ir0.7Ru0.3O2

Item URL in elib:https://elib.dlr.de/125612/
Document Type:Conference or Workshop Item (Speech)
Title:Lowering the PGM content of PEM Electrolysis by novel Electrocatalyst with superior Activity
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Friedrich, Kaspar AndreasAndreas.Friedrich (at) dlr.deUNSPECIFIED
Lettenmeier, PhilippPhilipp.Lettenmeier (at) dlr.dehttps://orcid.org/0000-0002-2822-8440
Stiber, SvenjaSvenja.Stiber (at) dlr.dehttps://orcid.org/0000-0002-8537-6589
Ansar, Syed Asifasif-syed.ansar (at) dlr.deUNSPECIFIED
Wang, LiLi.Wang (at) dlr.deUNSPECIFIED
Majchel, JanJan.Majchel (at) dlr.deUNSPECIFIED
Gago, AldoAldo.Gago (at) dlr.deUNSPECIFIED
Date:10 September 2018
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Electrocatalyst, reduction of precious metal content
Event Title:f-cell 2018
Event Location:Stuttgart, Deutschland
Event Type:international Conference
Event Dates:10. -11. Sep. 2018
Organizer:Region Stuttgart
HGF - Research field:Energy
HGF - Program:Storage and Cross-linked Infrastructures
HGF - Program Themes:Electrolysis and Hydrogen
DLR - Research area:Energy
DLR - Program:E SP - Energy Storage
DLR - Research theme (Project):E - Elektrochemical Processes (Electrolysis)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Friedrich, Prof.Dr. Kaspar Andreas
Deposited On:10 Jan 2019 15:23
Last Modified:10 Jan 2019 15:23

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