A deconvolution method to model electrode processes in solid oxide cells

سال انتشار: 1395
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 414

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شناسه ملی سند علمی:

ELECTROCHEMISTRY012_104

تاریخ نمایه سازی: 5 آذر 1397

چکیده مقاله:

Electrochemical impedance spectroscopy (EIS) was utilized to characterize an anode-supported solid oxide cell. In order to define a suitable equivalent circuit model (ECM), the corresponding distribution of relaxation times (DRT) curves were calculated. DRT was implemented as a deconvolution method to pre-identify the electrode polarization processes at various temperatures and gas compositions. Based on the DRT plots, a general strategy for the identification of the reaction mechanisms was achieved. It was shown that gas diffusion process in cathode can be characterized only at low oxygen partial pressures.

نویسندگان

Seyed-Vahidreza Seyed-Vakili

School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran

Alireza Babaei

School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran

Saeed Heshmati-Manesh

School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran

Hossein Abdizadeh

School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran