In Operando Quantification of Three-Dimensional Water Distribution in Nanoporous Carbon-Based Layers in Polymer Electrolyte Membrane Fuel Cells

ACS Nano ◽  
2017 ◽  
Vol 11 (6) ◽  
pp. 5944-5949 ◽  
Author(s):  
Saad S. Alrwashdeh ◽  
Ingo Manke ◽  
Henning Markötter ◽  
Merle Klages ◽  
Martin Göbel ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Water Distribution ◽  
Polymer Electrolyte Membrane ◽  
Three Dimensional ◽  
Nanoporous Carbon ◽  
Electrolyte Membrane ◽  
In Operando ◽  
Carbon Based

Neutron radiographic in operando investigation of water transport in polymer electrolyte membrane fuel cells with channel barriers

2017 ◽  
Vol 148 ◽  
pp. 604-610 ◽  
Author(s):  
Saad S. Alrwashdeh ◽  
Ingo Manke ◽  
Henning Markötter ◽  
Jan Haußmann ◽  
Nikolay Kardjilov ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Water Transport ◽  
Polymer Electrolyte Membrane ◽  
Electrolyte Membrane ◽  
In Operando

Synchrotron X-ray tomography for investigations of water distribution in polymer electrolyte membrane fuel cells

2011 ◽  
Vol 196 (12) ◽  
pp. 5250-5255 ◽  
Author(s):  
Ph. Krüger ◽  
H. Markötter ◽  
J. Haußmann ◽  
M. Klages ◽  
T. Arlt ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Water Distribution ◽  
Polymer Electrolyte Membrane ◽  
X Ray ◽  
Electrolyte Membrane

Nitrogen-doped three-dimensional graphene-supported platinum catalysts for polymer electrolyte membrane fuel cells application

2018 ◽  
Vol 11 (01) ◽  
pp. 1850015 ◽  
Author(s):  
Fuqiang Chu ◽  
Xingxing Li ◽  
Wensen Yuan ◽  
Huanhuan Zhu ◽  
Yong Qin ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Three Dimensional ◽  
Pt Nanoparticles ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Electrolyte Membrane ◽  
Supported Platinum ◽  
Supported Platinum Catalysts

Catalysts are a key component of polymer electrolyte membrane fuel cells (PEMFCs). In this work, nitrogen-doped three-dimensional graphene-supported platinum (Pt-3DNG) catalysts are successfully prepared and characterized. SEM and TEM images show the Pt nanoparticles are uniformly dispersed in the sheets of nitrogen-doped 3DNG. Compared with that of the commercial Pt/C catalysts, Pt-3DNG show much better oxygen reduction reaction (ORR) activity and cycling stability, and the reduction in limit current density after 1000 cycles is only about 1.6% for the Pt-3DNG catalysts, whereas 7.2% for the commercial Pt/C catalysts. The single cell using Pt-3DNG catalysts in both the anode and the cathode show a higher peak power density (21.47[Formula: see text]mW cm[Formula: see text] than that using commercial Pt/C catalysts (20.17[Formula: see text]mW cm[Formula: see text] under the same conditions. These properties make this type of catalyst suitable for the application in PEMFCs.

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