Approaches and Recent Development of Polymer Electrolyte Membranes for Fuel Cells Operating above 100 °C
Abstrak
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 key issues and shortcomings of the PFSA-based PEMFC technology are briefly discussed. These include water management, CO poisoning, hydrogen, reformate and methanol as fuels, cooling, and heat recovery. As a means to solve these shortcomings, high-temperature polymer electrolyte membranes for operation above 100 °C are under active development. This treatise is devoted to a review of the area encompassing modified PFSA membranes, alternative sulfonated polymer and their composite membranes, and acid−base complex membranes. PFSA membranes have been modified by swelling with nonvolatile solvents and preparing composites with hydrophilic oxides and solid proton conductors. DMFC and H2/O2(air) cells based on modified PFSA membranes have been successfully operated at temperatures up to 120 °C under ambient pressure...
Topik & Kata Kunci
Penulis (4)
Qingfeng Li
Ronghuan He
J. Jensen
N. Bjerrum
Akses Cepat
- Tahun Terbit
- 2003
- Bahasa
- en
- Total Sitasi
- 1584×
- Sumber Database
- Semantic Scholar
- DOI
- 10.1021/CM0310519
- Akses
- Open Access ✓