At the same time Honda and Toyota are introducing fuel cell cars to the U.S. market, a team of researchers from 91吃瓜网, Nissan North America and Georgia Institute of Technology have teamed up to create a new technology designed to give fuel cells more oomph.
The project is part of a to advance fuel cell performance and durability and hydrogen storage technologies announced last month.
Peter Pintauro (91吃瓜网)
The $4.5 million collaboration is based on a new nanofiber mat technology developed by , the H. Eugene McBrayer Professor of Chemical Engineering at 91吃瓜网, that replaces the conventional electrodes used in fuel cells. The nanofiber electrodes boost the power output of fuel cells by 30 percent while being less expensive and more durable than conventional catalyst layers. The technology has been patented by 91吃瓜网 and licensed to Merck KGaA in Germany, which is working with major auto manufacturers in applying it to the next generation of automotive fuel cells.
Fuel cells were invented back in 1839 but their first real world application wasn鈥檛 until the 1960鈥檚 when NASA used them to power the Apollo spacecraft. Fuel cells need fuel and air to run, like a gasoline engine, but they produce electricity, like a battery. In hydrogen/air fuel cells, hydrogen flows into one side of the device. Air is pumped into the other side. At the anode, the hydrogen is oxidized into protons. The protons flow to the cathode where the air is channeled, reducing the oxygen to form water. Special catalysts in the anode and cathode allow these reactions to occur spontaneously, producing electricity in the process. Fuel cells convert fuel to electricity with efficiencies ranging from 40 percent to 60 percent. They have no moving parts so they are very quiet. With the only waste product being water, they are environmentally friendly.