✦ LIBER ✦
A highly ordered Fe–N–C nanoarray as a non-precious oxygen-reduction catalyst for proton exchange membrane fuel cells
✍ Scribed by M. Lei; P.G. Li; L.H. Li; W.H. Tang
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 591 KB
- Volume
- 196
- Category
- Article
- ISSN
- 0378-7753
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✦ Synopsis
A highly ordered Pt-free Fe-N-C catalyst is synthesized through a hydrogen bonding-assisted selfassembly route. The catalyst has a porous structure with an average pore size of 5.5 nm and a large surface area of 416 m 2 g -1 , making it highly active in oxygen reduction. Cells assembled with the synthesized catalyst perform significantly better than those assembled with amorphous Fe-N-C cathode catalysts. The maximum powers of cells assembled from the highly ordered and amorphous catalysts are 252 and 60 mW cm -2 , respectively.