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Start Over Descriptor "PEFC" Publication Type Books
2 results on '"PEFC"'

1. Ionic Conductive Membranes for Fuel Cells.

Author

Narducci, Riccardo and Narducci, Riccardo

Subjects
Research & information: general, Technology: general issues, High IEC, CSPPSU, NH4I salt, Nafion, PEFC, PEM, PEMFC, PEMFCs, PFSA annealing, PPSU, PVA:CS polymer blend, TNM and LSV study, XRD and FESEM, activation, bioremediation, brine, cerium oxide, dielectric properties, direct methanol fuel cells (DMFCs), electrogens, energy, fuel cell technology, halloysite, hydration, impedance, ionomer, n/a, nc index, organic pollutants, polymer electrolyte membrane, polymer electrolyte membrane fuel cell, polymer electrolyte membrane fuel cells (PEMFCs), proton exchange membrane, proton exchange membrane fuel cell, proton exchange membrane fuel cells, proton exchange membranes, radical scavengers, renewable energy, reverse electrodialysis, semi-crystalline polymers, small-angle neutron scattering, solid oxide fuel cells (SOFCs), wastewater
Abstract

Summary: This book, titled "Ionic Conductive Membranes for Fuel Cells", from the journal Membranes, discusses the state of the art and future developments in the field of polymer electrolyte membranes for fuel cells, an efficient and clean system for converting fuel into energy.

2. Visualization and Measurement of Dynamic Water Behavior in Polymer Electrolyte Fuel Cell by Neutron Radiography.

Author

Ueda, Tadanobu, Takenaka, Nobuyuki, Asano, Hitoshi, Tanimoto, Kazumi, Mochiki, Koh-ichi, Kawabata, Yuji, and Matsubayashi, Masahito

Abstract

Visualization of water behavior in a polymer electrolyte fuel cell was conducted by neutron radiography. Real-time video images and high-resolution still images were photographed with measurement of fuel cell generation performance. It was clearly visualized by real time imaging that water condensed in an air supply line was coming into a fuel cell. In this case the cell voltage decreased when water flowed into the cathode side. On the other hand, no effect of condensed water into the anode side was observed on the cell performance. In the results of high intensity still imaging, water amount in gas diffusion layer (GDL) under ribs and channel part with GDL were measured quantitatively. The oxygen utilization was varied while PEFC was in a constant current operation. Water amount in the GDL under ribs increased, and cell voltage decreased with increasing oxygen utilization. It can be said that water amount in the PEFC might strongly depend on airflow rate, and the cell voltage might be affected by the water amount. [ABSTRACT FROM AUTHOR]

Published
2007
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