TY  - JOUR
AU  - Niemöller, Arvid
AU  - Jakes, Peter
AU  - Kayser, Steffen
AU  - Lin, Yu
AU  - Lehnert, Werner
AU  - Granwehr, Josef
TI  - 3D printed sample holder for in-operando EPR spectroscopy on high temperature polymer electrolyte fuel cells
JO  - Journal of magnetic resonance
VL  - 269
SN  - 1090-7807
CY  - Amsterdam [u.a.]
PB  - Elsevier
M1  - FZJ-2016-03420
SP  - 157 - 161
PY  - 2016
AB  - Electrochemical cells contain electrically conductive components, which causes various problems if such a cell is analyzed during operation in an EPR resonator. The optimum cell design strongly depends on the application and it is necessary to make certain compromises that need to be individually arranged. Rapid prototyping presents a straightforward option to implement a variable cell design that can be easily adapted to changing requirements. In this communication, it is demonstrated that sample containers produced by 3D printing are suitable for EPR applications, with a particular emphasis on electrochemical applications. The housing of a high temperature polymer electrolyte fuel cell (HT-PEFC) with a phosphoric acid doped polybenzimidazole membrane was prepared from polycarbonate by 3D printing. Using a custom glass Dewar, this fuel cell could be operated at temperatures up to 140 °C in a standard EPR cavity. The carbon-based gas diffusion layer showed an EPR signal with a characteristic Dysonian line shape, whose evolution could be monitored in-operando in a non-invasive manner.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000381239900019
C6  - pmid:27323280
DO  - DOI:10.1016/j.jmr.2016.06.003
UR  - https://juser.fz-juelich.de/record/810837
ER  -