A phosphoric acid-doped electrocatalyst supported on poly(para-pyridine benzimidazole)-wrapped carbon nanotubes shows a high durability and performance

2015 ◽  
Vol 3 (27) ◽  
pp. 14318-14324 ◽  
Author(s):  
Zehui Yang ◽  
Tsuyohiko Fujigaya ◽  
Naotoshi Nakashima
Keyword(s):  
Carbon Nanotubes ◽  
Fuel Cells ◽  
High Temperature ◽  
Fuel Cell ◽  
Phosphoric Acid ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Fuel Cells ◽  
Fuel Cell Performance ◽  
High Durability ◽  
And Performance

Low fuel cell performance and durability are still the two main obstacles to the commercialization of high-temperature polymer electrolyte fuel cells.

Poly(vinylpyrrolidone)–wrapped carbon nanotube-based fuel cell electrocatalyst shows high durability and performance under non-humidified operation

2015 ◽  
Vol 3 (46) ◽  
pp. 23316-23322 ◽  
Author(s):  
Zehui Yang ◽  
Naotoshi Nakashima
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Carbon Nanotube ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Fuel Cells ◽  
High Durability ◽  
And Performance ◽  
Fuel Cell Electrocatalyst

Low durability and performance have limited the wide commercialization of high-temperature polymer electrolyte fuel cells (HT-PEFCs).

Wetting properties of porous high temperature polymer electrolyte fuel cells materials with phosphoric acid

2019 ◽  
Vol 21 (24) ◽  
pp. 13126-13134 ◽  
Author(s):  
J. Halter ◽  
T. Gloor ◽  
B. Amoroso ◽  
T. J. Schmidt ◽  
F. N. Büchi
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Fuel Cell ◽  
Phosphoric Acid ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Fuel Cells ◽  
Polymer Electrolyte Fuel Cell ◽  
Wetting Behavior ◽  
Wetting Properties ◽  
Fuel Cell Materials

The influence of phosphoric acid temperature and concentration on the wetting behavior of porous high temperature polymer electrolyte fuel cell materials is investigated.

Tetrazole substituted polymers for high temperature polymer electrolyte fuel cells

2015 ◽  
Vol 3 (27) ◽  
pp. 14389-14400 ◽  
Author(s):  
Dirk Henkensmeier ◽  
Ngoc My Hanh Duong ◽  
Mateusz Brela ◽  
Karol Dyduch ◽  
Artur Michalak ◽  
...  
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Phosphoric Acid ◽  
Dft Calculations ◽  
Polymer Electrolyte ◽  
Phenyl Group ◽  
Polymer Electrolyte Fuel Cells ◽  
Lower Basicity

Tetrazole (TZ) has lower basicity than imidazole and may not be fully protonated by phosphoric acid. DFT calculations suggest that the basicity of TZ groups can be increased by introducing a 2,6-dioxy-phenyl-group in position 5.

scholarly journals Novel phosphoric acid-doped PBI-blends as membranes for high-temperature PEM fuel cells

2015 ◽  
Vol 3 (20) ◽  
pp. 10864-10874 ◽  
Author(s):  
Florian Mack ◽  
Karin Aniol ◽  
Corina Ellwein ◽  
Jochen Kerres ◽  
Roswitha Zeis
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Fuel Cell ◽  
Phosphoric Acid ◽  
Chemical Stability ◽  
Pem Fuel Cells ◽  
Cell Performance ◽  
Acid Base ◽  
Fuel Cell Performance ◽  
Blend Membranes

We present novel acid–base blend membranes with improved chemical stability and competitive fuel cell performance compared to conventional PBI membranes.

scholarly journals A Review of Recent Developments and Advanced Applications of High-Temperature Polymer Electrolyte Membranes for PEM Fuel Cells

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5440 ◽  
Author(s):  
Khadijeh Hooshyari ◽  
Bahman Amini Horri ◽  
Hamid Abdoli ◽  
Mohsen Fallah Vostakola ◽  
Parvaneh Kakavand ◽  
...  
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Pem Fuel Cells ◽  
Polymer Electrolyte Membranes ◽  
Cell Performance ◽  
Fuel Cell Performance ◽  
Electrolyte Membranes ◽  
Recent Developments

This review summarizes the current status, operating principles, and recent advances in high-temperature polymer electrolyte membranes (HT-PEMs), with a particular focus on the recent developments, technical challenges, and commercial prospects of the HT-PEM fuel cells. A detailed review of the most recent research activities has been covered by this work, with a major focus on the state-of-the-art concepts describing the proton conductivity and degradation mechanisms of HT-PEMs. In addition, the fuel cell performance and the lifetime of HT-PEM fuel cells as a function of operating conditions have been discussed. In addition, the review highlights the important outcomes found in the recent literature about the HT-PEM fuel cell. The main objectives of this review paper are as follows: (1) the latest development of the HT-PEMs, primarily based on polybenzimidazole membranes and (2) the latest development of the fuel cell performance and the lifetime of the HT-PEMs.

Phosphoric acid doped crosslinked polybenzimidazole (PBI-OO) blend membranes for high temperature polymer electrolyte fuel cells

2017 ◽  
Vol 544 ◽  
pp. 416-424 ◽  
Author(s):  
N. Nambi Krishnan ◽  
Dickson Joseph ◽  
Ngoc My Hanh Duong ◽  
Anastasiia Konovalova ◽  
Jong Hyun Jang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
High Temperature ◽  
Phosphoric Acid ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Fuel Cells ◽  
Blend Membranes

Measurement of a new parameter representing the gas transport properties of the catalyst layers of polymer electrolyte fuel cells

2016 ◽  
Vol 18 (18) ◽  
pp. 13066-13073 ◽  
Author(s):  
Hiroshi Iden ◽  
Atsushi Ohma ◽  
Tomomi Tokunaga ◽  
Kouji Yokoyama ◽  
Kazuhiko Shinohara
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Transport Properties ◽  
Polymer Electrolyte ◽  
Gas Transport ◽  
Polymer Electrolyte Fuel Cells ◽  
Cell Performance ◽  
Fuel Cell Performance ◽  
Catalyst Layers ◽  
Gas Transport Properties

The optimization of the catalyst layers is necessary for obtaining a better fuel cell performance and reducing fuel cell cost.

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