A review of the stability and durability of non-precious metal catalysts for the oxygen reduction reaction in proton exchange membrane fuel cells

作者：Banham Dustin^*; Ye Siyu; Pei Katie; Ozaki Jun ichi; Kishimoto Takeaki; Imashiro Yasuo

来源：Journal of Power Sources, 2015, 285: 334-348.

DOI：10.1016/j.jpowsour.2015.03.047

• Non-precious metal catalysts
• Proton exchange membrane fuel cell
• Oxygen reduction reaction (ORR)
• Stability
• Electrocatalysis

A major hurdle to the widespread commercialization of proton exchange membrane fuel cells (PEMFCs) is the high loading of noble metal (Pt/Pt-alloy) catalyst at the cathode, which is necessary to facilitate the inherently sluggish oxygen reduction reaction (ORR). To eliminate the use of Pt/Pt-alloy catalysts at the cathode of PEMFCs and thus significantly reduce the cost, extensive research on non-precious metal catalysts (NPMCs) has been carried out over the past decade. Major advances in improving the ORR activity of NPMCs, particularly Fe- and Co-based NPMCs, have elevated these materials to a level at which they can start to be considered as potential alternatives to Pt/Pt-alloy catalysts. Unfortunately, the stability (performance loss following galvanostatic experiments) of these materials is currently unacceptably low and the durability (performance loss following voltage cycling) remains uncertain. The three primary mechanisms of instability are: (a) Leaching of the metal site, (b

• 出版日期2015-7-1