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Power-to-Hydrogen: Potential and Future Improvements

Gago, Aldo and Lettenmeier, Philipp and Wang, Li and Kolb, Svenja and Burggraf, Fabian and Friedrich, K. Andreas (2015) Power-to-Hydrogen: Potential and Future Improvements. 10th Conference on Sustainable Development of Energy, Water and Environment Systems, 28. Sept. - 2. Okt. 2015, Dubrovnik, Kroatien.

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Abstract

Hydrogen is expected to play an important role as a crosslinking technology between power generation on one hand and transport and industry on the other hand. When produced by water, electrolysis from renewable energies such as solar or wind hydrogen can directly replace fossil fuels in transport and industry, which are converted with lower efficiencies. The relevant technologies are either the mature alkaline water electrolysis or the newer proton exchange membrane water electrolysis, which exhibits higher potentials for performance enhancement and cost reduction. First, this option will be discussed based on the study Plan-DelyKad, which takes into account the impact on the energy system as a whole and discusses possible business cases; second, the research efforts of DLR regarding cost reduction, efficiency improvements and system integration of electrolysis technology. In particular, key components of polymer electrolysis that determine the stack cost are the bipolar plates (BPP) and the high loading of electrocatalyst for the OER in state of art membrane electrode assemblies. This presentation will discuss the potentials for cost reduction by synthesizing supported IrO2 electrocatalyst replacing the corresponding unsupported electrocatalysts. The supports need to be highly stable and exhibit sufficient electronic conductivity. Additionally, the cost reduction achieved by a titanium coating for stain less steel bipolar plates for polymer electrolysis will be shortly discussed.

Item URL in elib:https://elib.dlr.de/100990/
Document Type:Conference or Workshop Item (Speech)
Title:Power-to-Hydrogen: Potential and Future Improvements
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gago, Aldoaldo.gago (at) dlr.deUNSPECIFIED
Lettenmeier, PhilippDLRUNSPECIFIED
Wang, Lili.wang (at) dlr.deUNSPECIFIED
Kolb, SvenjaDLRUNSPECIFIED
Burggraf, FabianDLRUNSPECIFIED
Friedrich, K. Andreasandreas.friedrich (at) dlr.deUNSPECIFIED
Date:29 September 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Hydrogen, power-to-hydrogen, electrolysis
Event Title:10th Conference on Sustainable Development of Energy, Water and Environment Systems
Event Location:Dubrovnik, Kroatien
Event Type:international Conference
Event Dates:28. Sept. - 2. Okt. 2015
HGF - Research field:Energy
HGF - Program:Storage and Cross-linked Infrastructures
HGF - Program Themes:Electrolysis and Hydrogen
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Electrochemical Processes (Electrolysis) (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Electrochemical Energy Technology
Deposited By: Friedrich, Prof.Dr. Kaspar Andreas
Deposited On:15 Dec 2015 09:59
Last Modified:15 Dec 2015 09:59

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