A Low-Cost PTFE-Reinforced Integral Multilayered Self-Humidifying Membrane for PEM Fuel Cells

2006 ◽  
Vol 9 (7) ◽  
pp. A332 ◽  
Author(s):  
Yu Zhang ◽  
Hua-Min Zhang ◽  
Xiao-Bing Zhu ◽  
Yong-Min Liang
Keyword(s):  
Fuel Cells ◽  
Low Cost ◽  
Pem Fuel Cells

scholarly journals N-doped carbon nanomaterials are durable catalysts for oxygen reduction reaction in acidic fuel cells

2015 ◽  
Vol 1 (1) ◽  
pp. e1400129 ◽  
Author(s):  
Jianglan Shui ◽  
Min Wang ◽  
Feng Du ◽  
Liming Dai
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Carbon Nanomaterials ◽  
Low Cost ◽  
Clean Energy ◽  
Pem Fuel Cells ◽  
Reduction Reaction ◽  
Metal Free ◽  
Carbon Based

The availability of low-cost, efficient, and durable catalysts for oxygen reduction reaction (ORR) is a prerequisite for commercialization of the fuel cell technology. Along with intensive research efforts of more than half a century in developing nonprecious metal catalysts (NPMCs) to replace the expensive and scarce platinum-based catalysts, a new class of carbon-based, low-cost, metal-free ORR catalysts was demonstrated to show superior ORR performance to commercial platinum catalysts, particularly in alkaline electrolytes. However, their large-scale practical application in more popular acidic polymer electrolyte membrane (PEM) fuel cells remained elusive because they are often found to be less effective in acidic electrolytes, and no attempt has been made for a single PEM cell test. We demonstrated that rationally designed, metal-free, nitrogen-doped carbon nanotubes and their graphene composites exhibited significantly better long-term operational stabilities and comparable gravimetric power densities with respect to the best NPMC in acidic PEM cells. This work represents a major breakthrough in removing the bottlenecks to translate low-cost, metal-free, carbon-based ORR catalysts to commercial reality, and opens avenues for clean energy generation from affordable and durable fuel cells.

Toward optimization of a robust low‐cost sulfonated‐polyethersulfone containing layered double hydroxide for PEM fuel cells

2019 ◽  
Vol 136 (34) ◽  
pp. 47884 ◽  
Author(s):  
Cataldo Simari ◽  
Carmelo Lo Vecchio ◽  
Apostolos Enotiadis ◽  
Mariano Davoli ◽  
Vincenzo Baglio ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Layered Double Hydroxide ◽  
Low Cost ◽  
Pem Fuel Cells ◽  
Double Hydroxide ◽  
Sulfonated Polyethersulfone

scholarly journals Assessment of the durability of low-cost Al bipolar plates for High Temperature PEM fuel cells

2019 ◽  
Vol 44 (25) ◽  
pp. 12748-12759 ◽  
Author(s):  
Cinthia Alegre ◽  
Laura Álvarez-Manuel ◽  
Radu Mustata ◽  
Luis Valiño ◽  
Antonio Lozano ◽  
...  
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Low Cost ◽  
Pem Fuel Cells ◽  
Bipolar Plates ◽  
High Temperature Pem

Life-Limiting Aspects of the Corrosion of Metallic Bipolar Plates for PEM Fuel Cells

2008 ◽  
Vol 41-42 ◽  
pp. 469-475 ◽  
Author(s):  
Yan Wang ◽  
Derek O. Northwood
Keyword(s):  
Fuel Cells ◽  
Proton Exchange Membrane ◽  
Low Cost ◽  
Electronic Conductivity ◽  
Bipolar Plate ◽  
Pem Fuel Cells ◽  
Proton Exchange ◽  
Metallic Materials ◽  
Bipolar Plates ◽  
Metallic Bipolar Plates

In proton exchange membrane fuel cells (PEMFCs), the bipolar plates supply the reactant gases through the flow channels to the electrodes and serve the purpose of electrochemically connecting one cell to another in the electrochemical cell stack. Requirements of the bipolar plate material are: high values of electronic conductivity; high values of thermal conductivity; high mechanical strength; impermeability to reactant gases; resistance to corrosion; and low cost of automated production. Metallic materials meet many of these requirements but the challenge has been in obtaining the required corrosion resistance. In the paper, six metallic materials were investigated as potential bipolar plate materials. The results showed that the corrosion rates were too high even for the most corrosion resistant metals (SS316L and grade 2 Ti), and that coatings would be required.

Injection moulded low cost bipolar plates for PEM fuel cells

2004 ◽  
Vol 131 (1-2) ◽  
pp. 35-40 ◽  
Author(s):  
A. Heinzel ◽  
F. Mahlendorf ◽  
O. Niemzig ◽  
C. Kreuz
Keyword(s):  
Fuel Cells ◽  
Low Cost ◽  
Pem Fuel Cells ◽  
Bipolar Plates

Operation of proton exchange membrane (PEM) fuel cells using natural cellulose fiber membranes

2019 ◽  
Vol 3 (10) ◽  
pp. 2725-2732 ◽  
Author(s):  
Likun Wang ◽  
Xianghao Zuo ◽  
Aniket Raut ◽  
Rebecca Isseroff ◽  
Yuan Xue ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Proton Exchange Membrane ◽  
Low Cost ◽  
Cellulose Fiber ◽  
Proton Exchange Membranes ◽  
Pem Fuel Cells ◽  
Proton Exchange ◽  
Natural Cellulose ◽  
Fiber Membranes ◽  
Exchange Membrane

Natural cellulose fiber membranes were used as simple scaffolds for low-cost and stable proton exchange membranes in fuel cells.

Optimization of a Carbon Composite Bipolar Plate for PEM Fuel Cells

2002 ◽  
Vol 756 ◽  
Author(s):  
Theodore M. Besmann ◽  
John J. Henry ◽  
Edgar Lara-Curzio ◽  
James W. Klett ◽  
David Haack ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Carbon Fibers ◽  
Low Cost ◽  
Chemical Vapor ◽  
High Strength ◽  
Bipolar Plate ◽  
Pem Fuel Cells ◽  
Carbon Composite ◽  
Chemical Vapor Infiltration ◽  
Short Carbon

ABSTRACTA carbon composite bipolar plate for PEM fuel cells has been developed that has high electrical conductivity, high strength, light weight, is impermeable, and has the potential for being produced at low cost. The plate is produced by slurry molding short carbon fibers into preform structures, molding features into the green body, and using chemical vapor infiltration to strengthen the material, give it high conductivity, and densify the surface to make it impermeable. Current efforts have focused on optimizing the fabrication process and characterizing prototypical components.

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