Hydrogen

Hydrogen is a chemical element and the most common element in the universe, utilized in many applications.

Hydrogen is a chemical element with the atomic number 1 and the lowest atomic weight in the periodic table. It is the most common element in the universe and primarily occurs on Earth in bonded form, particularly in water (H_O) and organic compounds. As a colorless and odorless gas, hydrogen is molecularly present at the Earth's surface under normal conditions (H_). The density of hydrogen is 0.0899 g/l, making it 14 to 14.4 times less than that of air, which endows it with outstanding thermodynamic properties, including the highest diffusion capacity and thermal conductivity of all gases. In terms of energy properties, hydrogen has the highest mass-based energy density among common fuels, making it a promising option for sustainable applications. By releasing pure chemical energy in the form of heat when combusted, hydrogen does not produce CO_ emissions, making it a crucial element for the decarbonization of industry and achieving global climate goals. The industrial application of hydrogen is diverse. It is used in areas such as chemistry, energy generation, metal processing, and food production. Significant advancements are expected in the production of green hydrogen, which is generated through electrolysis from renewable energies. This technology has the potential to significantly reduce emissions and is considered key to creating a sustainable and climate-neutral industry of the future.