A Critical Review on Hydrogen Production

Hydrogen gas has to provide a clean and sustainable source of energy. It is considered to be future green energy to solve the air pollution due to the petroleum or coal fuels. There are several ways to produce hydrogen gas, the first one is through electrolysis, a stable electric current is connected to water to split the hydrogen and oxygen molecules. The other methods include steam methane reforming and coal gasification. The hydrogen gas has many potential advantages: it is a versatile fuel that can be used in different applications and emitting only water vapor as a byproduct. However, the hydrogen production currently faced high production costs, the need for significant infrastructure development, and safety concerns related to storage and transportation. Although the safety and cost of hydrogen fuel are still being concerned, the technology is being developed and improved rapidly. Many researchers and automobiles enterprises carried out the research to improve the technology and reduce the production cost. Hydrogen cost is seem to be the future of green energy source. The paper reviewed the different type hydrogen production technologies and trends.