(393q) Noble Metal-Based 1-D Nanomaterials in the Application of Direct Alcohol Fuel Cells

Su, L., University of Connecticut
Liu, Y., University of Connecticut
Manuzzi, D., University of Connecticut
Jia, W., University of Connecticut
Lei, Y., University of Connecticut

Direct alcohol fuel cells (DAFCs) are envisaged to be a new generation of portable power sources which convert chemical energy into electrical energy with, theoretically, both economical and environmental benefit. Noble metal-based composite nanomaterials have shown great applicability as the cathode and anode catalysts in application of DAFCs. Furthermore, 1-D bimetallic nanomaterials have shown improved performance towards oxygen reduction reaction and alcohol oxidation reaction attributed to the ameliorated durability from the 1-D nanostructure and the enhanced catalytic activity from the incorporation of the second metal.

In this work, Pt-based nanomaterials with 1-D hollow nanostructure prepared from solution-based Cu nanowires or solid state electrospun Cu nanofibers have been successfully fabricated through a versatile galvanic replacement reaction process. The reaction condition was systematically investigated to optimize the chemical and morphological properties of the as-prepared nanomaterials according to SEM, TEM, XRD, and XPS. Moreover, the electrocatalytic activities of the Pt-based and Pd-based nanowires towards oxygen reduction reaction and ethanol oxidation reaction, respectively, have also been demonstrated and compared with the state-of-the-art Pt/C catalysts.

See more of this Session: Poster Session: Nanoscale Science and Engineering

See more of this Group/Topical: Nanoscale Science and Engineering Forum