A Study on Hydrogen Reaction Kinetics of Pt/HfO2/SiC Schottky-Diode Hydrogen Sensors

Hydrogen has a wide range of applications and is an essential raw material in many industries such as chemical, food, metallurgical, electronics and others. It can be produced by a variety of methods, including acid and iron methods, steam-reforming production method, coal and electrolysis methods, biological processes, as well as chemical decomposition of hydrogen-containing compounds. Most of the hydrogen produced in the United States is used to synthesize ammonia by the Haber process which can then be used as a soil fertilizer. Hydrogen is also used to produce synthetic methyl alcohol and synthetic petroleum by the Patart method and the Fischer-Tropsch process respectively (Almqvist, 2003). Hydrogen can also be used in the food processing industry to convert vegetable oils into hard and white fats that can be used to make margarine. This process is called hydrogenation, which is the major chemical application of hydrogen. Some oil companies use hydrogenation process to do desulfurization and hydro-cracking. In addition, hydrogen has many industrial applications such as metal smelting, welding, cutting, cooling in power station, electronic fabrication process, fiber optics manufacturing, medical installation and corrosion prevention in nuclear reactors.