Impact of different synthesis methods on the electrocatalytic activity and stability of Pd-Fe/C nanoparticles for oxygen reduction reaction in fuel Cells
- Esubalew Meku, Chunyu Du, Yajing Wang, Lei Du
- Corresponding Author
- Esubalew Meku
Available Online March 2016.
- https://doi.org/10.2991/iceti-16.2016.24How to use a DOI?
- Palladium-iron alloy, Microwave polyol method, Impregnation reduction method, Oxygen reduction reaction, Fuel cell.
- The rational synthesis of active, durable and low cost catalysts has of particular interest for fuel cell applications. The structural properties of fuel cell catalysts can be modulated by different synthesis methods, which significantly influence the oxygen reduction reaction at the cathode. In this study, we describe the effect of microwave and impregnation reduction methods on the electrocatalytic property and stability of carbon supported palladium-iron nanoparticles (Pd3Fe/C) for oxygen reduction reaction in proton exchange membrane fuel cells. The physical and electrochemical properties of the nanoparticles have been characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), cyclic voltammetry (CV) and Rotating Disc Electrode (RDE) techniques. The XRD results revealed that the impregnation reduction method provides better degree of alloying between Pd and Fe relative to microwave assisted polyol reduction method. The nanoparticles prepared by impregnation reduction method exhibit superior ORR mass activity and improved stability compared to those prepared by microwave polyol method. This is attributed to higher degree of alloying, compressive lattice strain and well defined crystal structure resulting from appropriate thermal treatments during preparation.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Esubalew Meku AU - Chunyu Du AU - Yajing Wang AU - Lei Du PY - 2016/03 DA - 2016/03 TI - Impact of different synthesis methods on the electrocatalytic activity and stability of Pd-Fe/C nanoparticles for oxygen reduction reaction in fuel Cells BT - 2016 International Conference on Engineering and Technology Innovations PB - Atlantis Press UR - https://doi.org/10.2991/iceti-16.2016.24 DO - https://doi.org/10.2991/iceti-16.2016.24 ID - Meku2016/03 ER -