Characterization of Ag-Mn-base Nanostructured Catalysts

摘要

This work investigated the synthesis and characterization of a Ag-Mn bifunctional catalyst for the oxygen reduction reaction at the cathode of a fuel cell system. A template-base electroless deposition method was developed to deposit Ag as a model system and then to co-deposit Ag-Mn and synthesize the nanowire catalysts. Scanning electron microscopy showed that Mn altered the growth mechanism of the pure Ag deposit. Scanning transmission electron microscopy confirmed that small amounts of Mn co-deposited with Ag using the novel procedure developed. Current work is ongoing to determine the chemical form and amount of Mn present in the nanowires.