Electrochemically synthesized Pt-based catalysts with different carbon supports for proton exchange membrane fuel cell applications

2018 ◽  
Vol 28 (4) ◽  
pp. 444-446 ◽  
Author(s):  
Alexandra B. Kuriganova ◽  
Igor N. Leontyev ◽  
Olga A. Maslova ◽  
Nina V. Smirnova
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Carbon Supports ◽  
Exchange Membrane

Highly durable fuel cell catalysts using crosslinkable block copolymer-based carbon supports with ultralow Pt loadings

2020 ◽  
Vol 13 (12) ◽  
pp. 4921-4929
Author(s):  
Juhyuk Choi ◽  
Young Jun Lee ◽  
Dongmin Park ◽  
Hojin Jeong ◽  
Sangyong Shin ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Block Copolymer ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Carbon Supports ◽  
Fuel Cell Catalysts ◽  
Ptfe Nanoparticles ◽  
Exchange Membrane

The catalyst in which carbon shells encapsulate PtFe nanoparticles shows superior activity and durability for proton exchange membrane fuel cells.

A practical method to characterize proton exchange membrane fuel cell catalyst layer topography: Application to two coating techniques and two carbon supports

2020 ◽  
Vol 695 ◽  
pp. 137751
Author(s):  
Fabien L. Deschamps ◽  
Julien G. Mahy ◽  
Alexandre F. Léonard ◽  
Stéphanie D. Lambert ◽  
Adrien Dewandre ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Catalyst Layer ◽  
Practical Method ◽  
Proton Exchange ◽  
Carbon Supports ◽  
Fuel Cell Catalyst ◽  
Exchange Membrane

Improving the corrosion resistance of proton exchange membrane fuel cell carbon supports by pentafluorophenyl surface functionalization

2018 ◽  
Vol 378 ◽  
pp. 732-741 ◽  
Author(s):  
Farisa Forouzandeh ◽  
Xiaoan Li ◽  
Dustin W. Banham ◽  
Fangxia Feng ◽  
Abraham Joseph Kakanat ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Fuel Cell ◽  
Surface Functionalization ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Carbon Supports ◽  
Exchange Membrane ◽  
Cell Carbon

Highly proton conductive membranes based on carboxylated cellulose nanofibres and their performance in proton exchange membrane fuel cells

2019 ◽  
Author(s):  
Valentina Guccini ◽  
Annika Carlson ◽  
Shun Yu ◽  
Göran Lindbergh ◽  
Rakel Wreland Lindström ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Surface Charge ◽  
Proton Exchange Membrane ◽  
Membrane Surface ◽  
Proton Exchange ◽  
Membrane Thickness ◽  
Fuel Cell Performance ◽  
Cellulose Nanofibres ◽  
Exchange Membrane

The performance of thin carboxylated cellulose nanofiber-based (CNF) membranes as proton exchange membranes in fuel cells has been measured in-situ as a function of CNF surface charge density (600 and 1550 µmol g<sup>-1</sup>), counterion (H<sup>+</sup>or Na<sup>+</sup>), membrane thickness and fuel cell relative humidity (RH 55 to 95 %). The structural evolution of the membranes as a function of RH as measured by Small Angle X-ray scattering shows that water channels are formed only above 75 % RH. The amount of absorbed water was shown to depend on the membrane surface charge and counter ions (Na<sup>+</sup>or H<sup>+</sup>). The high affinity of CNF for water and the high aspect ratio of the nanofibers, together with a well-defined and homogenous membrane structure, ensures a proton conductivity exceeding 1 mS cm<sup>-1</sup>at 30 °C between 65 and 95 % RH. This is two orders of magnitude larger than previously reported values for cellulose materials and only one order of magnitude lower than Nafion 212. Moreover, the CNF membranes are characterized by a lower hydrogen crossover than Nafion, despite being ≈ 30 % thinner. Thanks to their environmental compatibility and promising fuel cell performance the CNF membranes should be considered for new generation proton exchange membrane fuel cells.<br>

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