Catalytic Hydrolysis of Borohydride for Fuel Cells

Abstract

Borohydrides present interesting options for the electrochemical power generation acting either as hydrogen source or anodic fuel for direct borohydride fuel cells (DBFC). In this work, Mg-Ni composite synthesized by mechanically alloying method, used as the catalyst for the hydrolysis of borohydride, has been investigated. Co-doping treatment has been carried out for the purpose of improving the hydrolysis rate further. The as-prepared and Co-doped Mg-Ni composites with low cost showed high catalytic activity to the hydrolysis of borohydride for hydrogen generation. After Co-doping, the hydrogen generation rate was around 280 ml·g −1·min −1. Borohydride would be a promising hydrogen source for fuel cells.