TY - SER AU - Sengul, Erce AU - Erdener, Hylya TI - Effects of Sulfonated Polyether-Etherketone (Speek) and Composite Membranes onProton Exchange Membrane Fuel Celi (Pemfc) Performance KW - Pem Fuel Celi KW - Speek KW - Composite Membrane ER -