. catalysts are necessary for each of these reactions; most commonly, platinum -based catalysts are used at the anode, while nickel catalysts are used at the cathode. typical commercial fuel cells are - % efficient at converting the energy stored in the fuel source to usable power in the form of electricity...
extrusion and other forming lubricants mechanical lubricants other chemical products industry and control systems back industry and control systems industry and enterprise software controls and checks quality and certifications semi-finished products back semi-finished products drawn wire wire rod tubes...