Verfahrenstechnische Analyse von elektrochemischen Energieumwandlungssystemen
Verfahrenstechnische Analyse von elektrochemischen Energieumwandlungssystemen
This study deals with the thermodynamic, electrode-kinetic and structural aspects considered by the author in the design and construction of the electrolysers and fuel cells. Three topics are treated: material stability for alkaline water electrolysis, reaction kinetics and mechanisms of the hydroge...
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Personal Name(s): | Divisek, J. (Corresponding author) |
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Contributing Institute: |
Publikationen vor 2000; PRE-2000; Retrocat |
Imprint: |
Jülich
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag
1997
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Physical Description: |
153 p. |
Document Type: |
Report Book |
Research Program: |
ohne Topic |
Series Title: |
Berichte des Forschungszentrums Jülich
3469 |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
This study deals with the thermodynamic, electrode-kinetic and structural aspects considered by the author in the design and construction of the electrolysers and fuel cells. Three topics are treated: material stability for alkaline water electrolysis, reaction kinetics and mechanisms of the hydrogen and oxygen reactions as well as structural aspects of fuel cells. Firstly, the thermodynamic aspects of the structural materials of an alkaline water electrolyser are presented. The second range of issues concerns the electrode kinetics of the electrochernical reactions of hydrogen and oxygen. In this connection, the problem of elucidating the reaction mechanism involved is a fundamental topic. An analysis of the reaction mechanism of the electrochernical reactions is discussed based on the numerical computer evaluation of a reaction mechanism presumed probable. The example of the design of the SOFC cermet anode is, furthermore, used to show that the electrochemical kinetics does not only represent the problem of mechanistic considerations but that spatial and structural effects also play an important part. The third topic concerns methods of calculating and designing the water electrolyser and fuel cells. As an example, the two-dimensional calculation of the methanereforming reaction in the anode compartment of the ceramic high-temperature solid oxide fuel cell (SOFC) is shown. As a further example, the three-dimensional mathematical modelling of the low-temperature fuel cell with a polymer electrolyte membrane (PEM) is presented in an abbreviated form. |