Fuel Cell

Yoshizawa, Masahiro; Ohno, Hiroyuki

doi:10.1002/0471762512.ch16

Cited by 14 publications

(2 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The imidazolium cations have the highest conductivity. The high ion conductivity of the imidazole has been attributed to the fact that it has both proton donor and acceptor groups within the molecule 18 . This is reduced when a methyl group is substituted for the C-2 proton.…”

Section: Bulk Il Conductivitymentioning

confidence: 99%

Development and Selection of Ionic Liquid Electrolytes for Hydroxide Conducting Polybenzimidazole Membranes in Alkaline Fuel Cells

Fox¹

2012

ACS Symposium Series

View full text Add to dashboard Cite

Alkaline fuel cell (AFC) operation is currently limited to specialty applications such as low temperatures and pure H 2 /O 2 due to the corrosive nature of the electrolyte and formation of carbonates. AFCs are the cheapest and potentially most efficient (approaching 70%) fuel cells. The fact that non-Pt catalysts can be used, makes them an ideal low cost alternative for power production. The anode and cathode are separated by and solid electrolyte or alkaline porous media saturated with KOH. However, CO 2 from the atmosphere or fuel feed severely poisons the electrolyte by forming insoluble carbonates. The corrosivity of KOH (electrolyte) limits operating temperatures to no more than 80°C. This chapter examines the development of ionic liquids electrolytes that are less corrosive, have higher operating temperatures, do not chemically bond to CO 2 , and enable alternative fuels. Work is detailed on the IL selection and characterization as well as casting methods within the polybenzimidazole based solid membrane. This approach is novel as it targets the root of the problem (the electrolyte) unlike other current work in alkaline fuel cells which focus on making the fuel cell components more durable.ACSmerged_v1.1

show abstract

Section: Bulk Il Conductivitymentioning

confidence: 99%

Development and Selection of Ionic Liquid Electrolytes for Hydroxide Conducting Polybenzimidazole Membranes in Alkaline Fuel Cells

Fox¹

2012

ACS Symposium Series

View full text Add to dashboard Cite

show abstract

“…[6] Their high thermal stability and negligible vapor pressure are extremely desirable in applications as diverse as liquid mirrors in lunar telescopes, electrodeposition, metal extraction, drug delivery, and electrolytes for batteries and fuel cells. [7][8][9][10][11] As their physical properties, such as viscosity, density, and melting point, can be easily tuned by changing the size of the anion and/or cation, or the chain length of the anion, ILs are also known as "designer solvents". [12] Moreover, owing to their low toxicity, ILs are regarded as greener alternatives to common organic solvents, thereby aiding sustainable chemistry.…”

Section: Introductionmentioning

confidence: 99%

Organic–Inorganic Hybrid Membranes Based on Sulfonated Poly(ether ether ketone) and Tetrabutylphosphonium Bromide Ionic Liquid for PEM Fuel Cell Applications

et al. 2014

View full text Add to dashboard Cite

Ionic liquids (ILs), with their inherent ionic conductivity and negligible vapor pressure, can be exploited in proton exchange membrane (PEM) fuel cells for which thermal management is a major problem and the cell operation temperature is limited by the boiling point of water. In this work, sulfonated poly(ether ether ketone) (SPEEK) membranes were modified by the incorporation of tetrabutylphosphonium bromide ([P 4 4 4 4 ]Br) by solvent-casting. Electrochemical impedance spectroscopy (EIS) was used to study the electrical properties of the modified membranes. Simultaneous TGA and FTIR studies were used to evaluate the thermal

show abstract

Ionic Liquids in Polymer Synthesis

Strehmel

2011

Chemie Ingenieur Technik

View full text Add to dashboard Cite

Ionic Liquids in Polymer SynthesisIonic liquids are discussed as new solvents for synthesis and modification of polymers. Polymerizations occuring by radical, ionic, complex coordinative or enzymatic mechanism, ring opening polymerizations, group transfer polymerizations, and polycondensations have been successfully carried out in ionic liquids. Polymer analogous reactions using either natural or synthetic polymers dissolved in ionic liquids result in modification of the polymer structure, and therefore, in variation of the polymer properties. Ionic liquids bearing polymerizable functional groups are interesting monomers for manufacturing of new polymer materials. Potential application fields include batteries, materials for separation processes in analytical chemistry up to coatings with antimicrobial effects.

show abstract

Fuel Cell

Cited by 14 publications

References 22 publications

Development and Selection of Ionic Liquid Electrolytes for Hydroxide Conducting Polybenzimidazole Membranes in Alkaline Fuel Cells

Development and Selection of Ionic Liquid Electrolytes for Hydroxide Conducting Polybenzimidazole Membranes in Alkaline Fuel Cells

Organic–Inorganic Hybrid Membranes Based on Sulfonated Poly(ether ether ketone) and Tetrabutylphosphonium Bromide Ionic Liquid for PEM Fuel Cell Applications

Ionic Liquids in Polymer Synthesis

Contact Info

Product

Resources

About