This title appears in the Scientific Report : 2018 

Proton dynamics of phosphoric acid in HT-PEFCs: Towards “operando” experiments
Khaneft, Marina (Corresponding author)
Shuai, Liu / Lin, Yu / Janßen, Holger / Lüke, Wiebke / Zorn, Reiner / Ivanova, Oxana / Radulescu, Aurel / Holderer, Olaf / Lehnert, Werner
JCNS-FRM-II; JCNS-FRM-II
Technoökonomische Systemanalyse; IEK-3
Neutronenstreuung; JCNS-1
AIP conference proceedings, 1969 (2018) S. 030003
2018
10.1063/1.5039295
Journal Article
Fuel Cells
FRM II / MLZ
Energy > 0
Published on 2018-05-31. Available in OpenAccess from 2019-05-31.
Published on 2018-05-31. Available in OpenAccess from 2019-05-31.
Published on 2018-05-31. Available in OpenAccess from 2019-05-31.
Please use the identifier: http://dx.doi.org/10.1063/1.5039295 in citations.
Please use the identifier: http://hdl.handle.net/2128/18804 in citations.
High Temperature Polymer Electrolyte Fuel Cells (HT-PEFCs) have been studied with quasielastic neutron scattering, which gives access to the proton diffusion in the fuel cell on local length- and timescales. So far, the different components such as the proton conducting membrane and the electrode layers have been studied separately. Here we show that also operating fuel cells can be investigated and the proton diffusion can be measured under real working conditions. The proton diffusion during power production is compared to that “at rest” but at elevated temperatures.