An efficient Ag–ionomer interface for hydroxide exchange membrane fuel cells

• DOI: 10.1039/c2cc34862d
• Publication Date: 2012-09-12T11:03:12Z
• Authors: Shuang Gu; Wenchao Sheng; Rui Cai; Shaun M. Alia; Shuqin Song; Kurt O. Jensen; Yushan Yan
• Keywords: Ionomer; Interface (matter)

An efficient Ag-phosphonium ionomer interface is discovered in HEMFCs, helping enhance oxygen reduction and improve mass transports simultaneously. As a result, completely-precious-metal-free HEMFC has been fabricated, which shows cost-normalized power much higher than that of Pt-based PEMFC benchmark (117 vs. 7.7 W US$(-1)).