Solid acids as fuel cell electrolytes

  title={Solid acids as fuel cell electrolytes},
  author={Sossina M. Haile and Dane A. Boysen and Calum Ronald Inneas Chisholm and Ryan B. Merle},
Fuel cells are attractive alternatives to combustion engines for electrical power generation because of their very high efficiencies and low pollution levels. Polymer electrolyte membrane fuel cells are generally considered to be the most viable approach for mobile applications. However, these membranes require humid operating conditions, which limit the temperature of operation to less than 100 °C; they are also permeable to methanol and hydrogen, which lowers fuel efficiency. Solid, inorganic… 

Novel anhydrous organic proton conductors for fuel cells

In recent years, fuel cells have attracted much attention because they directly, cleanly, and efficienctly convert chemical into electrical energy. An essential component of a fuel cell is the

Intermediate temperature fuel cells via an ion-pair coordinated polymer electrolyte

Fuel cells are attractive devices that convert chemical energy into electricity through the direct electrochemical reaction of hydrogen and oxygen. Intermediate temperature fuel cells operated at

Intermediate temperature proton‐conducting membrane electrolytes for fuel cells

This review provides an overview of intermediate temperature proton‐conducting membrane electrolyte materials for fuel cells. Such fuel cells operate in the approximate temperature range of 150–300°C

A review on phosphate based, solid state, protonic conductors for intermediate temperature fuel cells

In this review, the potential use of phosphate compounds as electrolytes for intermediate temperature fuel cells is summarized and various examples on ammonium polyphosphate, pyroph phosphate, cesium phosphate and other phosphate based electrolytes are presented and their preparation methods, conduction mechanism and conductivity values are demonstrated.

Development of Novel Proton Conductors Consisting of Solid Acid/Pyrophosphate Composite for Intermediate-Temperature Fuel Cells

Fuel cells are attractive energy conversion devices with high efficiencies and low emissions, and many studies have been conducted so far. Among them, fuel cells operating at 200-600°C are promising

Approaches and Recent Development of Polymer Electrolyte Membranes for Fuel Cells Operating above 100 °C

The state-of-the-art of polymer electrolyte membrane fuel cell (PEMFC) technology is based on perfluorosulfonic acid (PFSA) polymer membranes operating at a typical temperature of 80 °C. Some of the

A proton conductor electrolyte based on molten CsH5(PO4)2 for intermediate-temperature fuel cells

Molten carbonate fuel cells have been commercialized as a mature technology. Due to the liquid electrolyte in molten carbonate fuel cells, gas seal and low contact resistance are easier to achieve

Fuel cell materials and components

  • S. Haile
  • Materials Science, Engineering
  • 2003

Advancement toward Polymer Electrolyte Membrane Fuel Cells at Elevated Temperatures

Elevation of operational temperatures of polymer electrolyte membrane fuel cells (PEMFCs) has been demonstrated with phosphoric acid-doped polybenzimidazole (PA/PBI) membranes. The technical



Ceramic Fuel Cells

A ceramic fuel cell in an all solid-state energy conversion device that produces electricity by electrochemically combining fuel and oxidant gases across an ionic conducting oxide. Current ceramic

Proton and deuteron conductivity in CsHSO4 and CsDSO4 by in situ isotopic exchange