Rapid Radical Degradation Test of Polyaromatic Fuel Cell Membranes by Electron Paramagnetic Resonance

2010 ◽  
Vol 43 (10) ◽  
pp. 4688-4697 ◽  
Author(s):  
Barbara Vogel ◽  
Herbert Dilger ◽  
Emil Roduner
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Fuel Cell ◽  
Cell Membranes ◽  
Paramagnetic Resonance ◽  
Fuel Cell Membranes ◽  
Radical Degradation ◽  
Degradation Test ◽  
Electron Paramagnetic

In-situ spin trap electron paramagnetic resonance study of fuel cell processes

2004 ◽  
Vol 6 (11) ◽  
pp. 2891 ◽  
Author(s):  
Alexander Panchenko ◽  
Herbert Dilger ◽  
Jochen Kerres ◽  
Martin Hein ◽  
Andreas Ullrich ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Fuel Cell ◽  
Spin Trap ◽  
Electron Paramagnetic Resonance Study ◽  
Trap Electron ◽  
Paramagnetic Resonance ◽  
Cell Processes ◽  
Electron Paramagnetic

Observation of Fuel Cell Membrane Degradation by Ex Situ and In Situ Electron Paramagnetic Resonance

2008 ◽  
Vol 155 (6) ◽  
pp. B570 ◽  
Author(s):  
B. Vogel ◽  
E. Aleksandrova ◽  
S. Mitov ◽  
M. Krafft ◽  
A. Dreizler ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Fuel Cell ◽  
Cell Membrane ◽  
Ex Situ ◽  
Membrane Degradation ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic

Electron Paramagnetic Resonance Analysis of Active Bio-Pd-Based Electrodes for Fuel Cells

2009 ◽  
Vol 71-73 ◽  
pp. 737-740 ◽  
Author(s):  
Regina Pinto de Carvalho ◽  
P. Yong ◽  
I.P. Mikheenko ◽  
M. Paterson-Beedle ◽  
Lynne E. Macaskie
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Fuel Cell ◽  
Pem Fuel Cell ◽  
Pd Nanoparticles ◽  
Proton Exchange ◽  
Test Reaction ◽  
Paramagnetic Resonance ◽  
Chemical Test ◽  
Resonance Analysis ◽  
Electron Paramagnetic

Nanoparticles of palladium were obtained with the help of hydrogen-oxidising, metal- reducing bacteria and used for the production of electricity in a proton exchange membrane (PEM) fuel cell. Earlier works have shown that palladised cells of Escherichia coli and Desulfovibrio desulfuricans (Bio-PdE.coli and Bio-PdD.desulfuricans, respectively) appeared similar by electron microscopy and were comparably active in a chemical test reaction. When tested in a PEM fuel cell they produced 0.018 and 0.108 W, respectively. Electron paramagnetic resonance analysis of Bio-PdE.coli mixed with activated carbon showed paramagnetic activity. However, Bio-PdD.desulfuricans under the same conditions quenched the intrinsic EPR signal. This quenching is indicative of the magnetic properties of the particles. The magnetic behaviour of Pd nanoparticles was theoretically predicted for particles between 10 and 20 nm in diameter and can be experimentally confirmed by EPR measurements.

ELECTRON PARAMAGNETIC RESONANCE STUDIES OF PHASE TRANSITIONS IN KCN

1976 ◽  
Vol 37 (C7) ◽  
pp. C7-241-C7-246 ◽  
Author(s):  
J.P. VON DER WEID ◽  
L.C. SCAVARDA DO CARMO ◽  
R. R. DO SANTOS ◽  
B. KOILLER ◽  
S. COSTA RIBEIRO ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Phase Transitions ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic
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