Results 31 to 40 of about 51,895 (303)

Enzymatic Based Biocathode in a Polymer Electrolyte Membrane Fuel Cell.

International Journal of Electrochemical Science, 2007
In this communication results of a fuel cell operating with a conventional platinum anode and a peroxidase based biochatode are presented. The biocathode was prepared with peroxidase extracted from vegetal tissue of brazilian zucchini, Cucurbirta pepo ...
Flavio Colmati, Sergio A. Yoshioka, Victor L.V.B. Silva, Hamilton Varela, Ernesto R. Gonzalez   +4 more
doaj   +2 more sources

Heterogeneous cell performance of polymer electrolyte fuel cell at high current operation: Respiration mode as non-equilibrium phenomenon

AIP Advances, 2019
The heterogeneous performance of polymer electrolyte fuel cell in space and time was discussed for operation at high current density. The cell voltage, detected by a segmented electrode, varies along a gas flow channel from upper to bottom stream and ...
Satoshi Koizumi, Satoru Ueda, Putra Ananda, Yasuyuki Tsutsumi   +3 more
doaj   +1 more source

Enhanced Performance of the Solid Alkaline Fuel Cell Using PVA-KOH Membrane

International Journal of Electrochemical Science, 2013
Poly(vinyl alcohol) (PVA) is a polyhydroxy polymer, which is very common in practical applications because of its easy preparation and biodegradability. In this work, the alkaline solid polymer electrolyte membrane, based on potassium hydroxide doped PVA,
Dragana L. Zugic, Ivana M. Perovic, Vladimir M. Nikolic, Sladjana Lj. Maslovara, Milica P. Marceta Kaninski   +4 more
doaj   +1 more source

Investigation on the performance of reversible polymer electrolyte membrane fuel cell during the electrolysis phase [PDF]

EPJ Web of Conferences
Due to its sustainable and zero-carbon potential, electrolysis of water is considered a suitable alternative for the production of green hydrogen. The electrolysis accounts for 2 to 5% of hydrogen production worldwide. The primary objective of this study
Kumar Dinesh, Kumar Hemant, Singh Oberoi Amandeep   +2 more
doaj   +1 more source

Hybrid Polymer Electrolyte Fuel Cells [PDF]

ECS Meeting Abstracts, 2010
Abstract not Available.
Paul Kohl, Murat Ünlü, Junfeng Zhou, Hyea Kim, Irene Anestis-Richard   +4 more
openaire   +1 more source

Ignition and Front Propagation in Polymer Electrolyte Membrane Fuel Cells [PDF]

, 2006
Water produced in a Polymer Electrolyte Membrane (PEM) fuel cell enhances membrane proton conductivity; this positive feedback loop can lead to current ignition.
Benziger, J. B., Chia, E. -S., De Decker, Y., Kevrekidis, I. G.   +3 more
core  

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

Advanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin, Marvin Erck, Kevin Jasutyn, Katja Radermacher, Andreas Bund, Mario Kurniawan   +5 more
wiley   +1 more source

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

Advanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park, Kyounglim Kim, Jinyoung Lee, Sarang Kim, Gwangsu Yoon, So Yeon Yoon, Jeong Kyeong Lee, Ji‐Wook Jang, Tae‐Hyuk Kwon   +8 more
wiley   +1 more source

Effect of Carbon Content on the Physical Properties of Carbon Composite Gas Diffusion Layer in PEMFCs

International Journal of Electrochemical Science, 2012
Carbon composite gas diffusion layers (GDLs) containing carbon black and graphite for use in polymer electrolyte membrane fuel cells were prepared by a simple method. The physical properties of the carbon composite GDLs, such as air flux through a plane,
Choonsoo Han, In-Tae Kim, Ho-Jung Sun, Gyungse Park, Ji-Jung Lee, Hong-Ki Lee, Joongpyo Shim   +6 more
doaj   +1 more source

Alcohol Fuel Cells at Optimal Temperatures [PDF]

, 2006
High-power-density alcohol fuel cells can relieve many of the daunting challenges facing a hydrogen energy economy. Here, such fuel cells are achieved using CsH2PO4 as the electrolyte and integrating into the anode chamber a Cu-ZnO/Al2O3 methanol steam ...
Boysen, Dane A., Chisholm, Calum R. I., Haile, Sossina M., Uda, Tetsuya   +3 more
core   +1 more source