Hollow microspheres with a tungsten carbide kernel for PEMFC application

摘要

Tungsten carbide microspheres comprising an outer shell and a compact kernel prepared by a simple hydrothermal method exhibit very high surface area promoting a high dispersion of platinum nanoparticles, and an exceptionally high electro-chemically active surface area (EAS) stability compared to the usual Pt/C electrocatalysts used for PEMFC application.