Hydrogen has been gaining attention as a clean and efficient energy source. However, is hydrogen really environmentally friendly? Most hydrogen commonly used now is gray hydrogen derived from fossil fuels. Since its production process accompanies generation of green house gas, it can be said that gray hydrogen is not environmentally friendly in the strict sense. The era of green hydrogen without carbon emissions has not yet begun.Hydrogen has been gaining attention as a clean and efficient energy source. However, is hydrogen really environmentally friendly? Most hydrogen commonly used now is gray hydrogen derived from fossil fuels. Since its production process accompanies generation of green house gas, it can be said that gray hydrogen is not environmentally friendly in the strict sense. The era of green hydrogen without carbon emissions has not yet begun.
Exploring the role of oxygen defects in a titanium dioxide protective film to maximize hydrogen production efficiency
