Microwave Assisted Synthesis of Ru3Pd6Pt Cathode Catalyst in a PEM Fuel Cell

作者：Leyva Noyola F; Solorza Feria O^*

来源：Journal of New Materials for Electrochemical Systems, 2013, 16(3): 147-150.

• Microwave assisted synthesis
• Ru3Pd6Pt
• oxygen reduction reaction
• PEM fuel cells

Nanoparticles of Ru3Pd6Pt have been previously produced by different synthesis routes that involve high temperatures and relative high pressures and long time. The usage of a conventional microwave assisted synthesis reduces environmental risk impact as well as the cost effective production in large scale with minimum set up modifications. These features are the motivations for the use of microwaves in the synthesis of the Ru3Pd6Pt catalyst for PEM fuel cell applications to reduce the Pt loading. In this communication a tri-metallic electrocatalyst was produced by the reduction of the corresponding metallic salts, RuCl3, PdCl2, and H2PtCl6 in ethylene glycol using a modified conventional microwave device. Oxygen reduction reaction kinetic analysis results conducted to a Tafel slope, (-b = 41.2 +/- 1.7 mV dec(-1)) at low overpotential, and exchange current density (i(0) = 3.01 +/- 0.39 x 10(-5) mA cm(-2)) in 0.5 M H2SO4. This electrocatalyst exhibited good performance and stability in a single H-2/O-2 PEM fuel cell.

• 出版日期2013-7