摘要:
The present invention provides a photocatalytic oxide for car's side mirrors, which is coated on the chrome-coated layer of a front surface mirror to enhance the durability of the front surface mirror and to impart hydrophilicity to the front surface mirror, thus being capable of providing safe visibility for car drivers, as well as a producing method thereof. The producing method of the photocatalytic oxide comprises the steps of: stirring tetraethyl orthosilicate (TEOS) and titanium isopropoxide (TIP) in 2-propanol as a solvent, in which the volume ratio between the tetraethyl orthosilicate (TEOS) and the titanium isopropoxide (TIP) is 50:50, 30-50:40 or 20-40:30 while the amount of the solvent is maintained at a constant; subjecting the stirred mixture to a reaction; washing the reacted material with water/alcohol by centrifugation; separating the water/alcohol; and collecting a hydrophilic coating solution.
摘要:
Apparatuses and methods for accelerated activation of fuel cells are disclosed. The apparatuses include a fuel cell stack; an air supplying means coupled to a cathode catalyst side of the fuel cell stack through a mass flow controller and a humidifier; a hydrogen supplying means coupled to an anode catalyst side of the fuel cell stack through a mass flow controller and a humidifier; and a cable coupled to both ends of the fuel cell stack for short-circuiting the cathode and the anode.
摘要:
Apparatuses and methods for accelerated activation of fuel cells are disclosed. The apparatuses include a fuel cell stack; an air supplying means coupled to a cathode catalyst side of the fuel cell stack through a mass flow controller and a humidifier; a hydrogen supplying means coupled to an anode catalyst side of the fuel cell stack through a mass flow controller and a humidifier; and a cable coupled to both ends of the fuel cell stack for short-circuiting the cathode and the anode.
摘要:
The present invention provides a metal separator for a fuel cell, which is surface-treated to have high electrical conductivity and electrochemical corrosion resistance, and a method for treating the surface of the same. The metal separator may include an amorphous carbon film formed on the surface of a separator substrate, the amorphous carbon film being carbonized by heat treatment to increase the proportion of sp2. The surface treatment method may include: forming an amorphous carbon film on the surface of a separator substrate; and carbonizing the amorphous carbon film by heat treatment. Fuel cells having the metal separator can show excellent performance.