E-TEK components are the heart of cutting-edge power generation and electrochemical technologies. Our gas diffusion electrodes, catalysts and membrane electrode assemblies are the key building blocks of fuel cells—the compact, nonpolluting power source that's poised to revolutionize electricity production and vehicle propulsion. In the industrial electrochemical arena, E-TEK gas-consuming electrodes recover valuable chemicals and metals from waste streams, reducing disposal costs while using far less energy than conventional electrolytic processes.