The key to promoting the hydrogen economy represented
by hydrogen vehicles is to produce hydrogen for electricity
generation at an affordable price. Hydrogen production methods
include capturing by-product hydrogen, reforming fossil fuel, and
electrolyzing water. Water electrolysis in particular is an
eco-friendly method of producing hydrogen, in which the use of a
catalyst is the most important factor in determining the efficiency
and price competitiveness. However, water electrolysis devices
require a platinum (Pt) catalyst, which exhibits unparalleled
performance when it comes to speeding up the hydrogen generation
reaction and enhancing long-term durability but is high in cost,
making it less competitive compared to other methods
price-wise.
