FACULTY OF ENGINEERINGDEPARTMENT OF METALLURGICAL AND MATERIALS ENGINEERING


Ziya Çağrı Torunoğlu

Ziya Çağrı Torunoğlu
114M128
Room No: 
E-208
Telephone: 
+90 (312) 210-7891
Fax: 
+90 (312) 210-2518
E-mail: 
torunoglu.ziya@metu.edu.tr
Education: 

B.Sc. Middle East Technical University, Metallurgical&Materials Eng. (2014)

M.Sc.  Middle East Technical University, Metallurgical&Materials Eng. (2014- )

Research Interests: 

Kinetics of bulk ionic transport in complex oxides

Surface adsorption and charge transfer processes

Electrode Impedance Spectroscopy

Thesis / Research Information: 

Perovskite type (La1-xSrx)CoO3-δand the related compounds have been studied as one of the promising candidates for the cathode of intermediate temperature (500-700 oC) solid oxide fuel cells (IT-SOFCs); they show high mixed electronic/ionic conductivity and high electro-catalytic activity.

However oxygen reduction rate (ORR), which is mainly hindered by dissociative adsorption of oxygen at the cathode surface along with bulk ionic transport, constitutes the main problem in utilization of perovskite type (La1-xSrx)CoO3-δ and all other relevant derivatives in SOFCs. Nonetheless, anomalously enhanced ORR kinetic around the (La1-xSrx)CoO3-δ/(La1-ySry)2CoO4±δ interface has been reported in recent years especially in case of thin film application. Exploiting this interface induced ORR enhancement can decrease operation temperature of SOFC cathode, extending the chemical stability of cathode together with emerging the probability of using new anode materials operating at lower temperatures and so used not to be compatible with IT-SOFC cathode. 


Supervisor: Assoc. Prof. Dr. Yener Kuru