An efficient Sm and Ge co-doped ceria nanocomposite electrolyte for low temperature solid oxide fuel cells

被引:37
|
作者
Arshad, Muhammad Sarfraz [1 ]
Raza, Rizwan [2 ]
Ahmad, M. Ashfaq [2 ]
Abbas, Ghazanfar [2 ]
Ali, Amjad [2 ]
Rafique, Asia [2 ]
Ullah, M. Kaleem [2 ]
Rauf, Sajid [2 ]
Asghar, M. Imran [3 ]
Mushtaq, Naveed [2 ]
Atiq, Shahid [1 ]
Naseem, Shahzad [1 ]
机构
[1] Univ Punjab, Ctr Excellence Solid State Phys, Quaid E Azam Campus, Lahore 54590, Pakistan
[2] COMSATS Inst Informat Technol, Dept Phys, Lahore 54000, Pakistan
[3] Aalto Univ, Dept Appl Phys, F-10007 Aalto, Finland
关键词
Electrolyte; Solid oxide fuel cells; Germanium; Nanocomposite; Morphology; IT-SOFCS; MICROSTRUCTURE; PERFORMANCE; STABILITY; CATHODE;
D O I
10.1016/j.ceramint.2017.09.155
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In this study we present a new nanocomposite electrolyte based on samarium (Sm) and germanium (Ge) co doped ceria Ce0.7Sm0.15Ge0.15O2.delta (SGeDC). The nanocomposite electrolyte was prepared using co-precipitation method. The crystal structure and surface morphology were determined using x-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. Four probe dc conductivity indicated the value of 0.074 S/cm at 650 degrees C. The Fuel cell performance was carried out using hydrogen as fuel. The maximum OCV observed was 0.95 V while the peak power density came out to be 600 mW/cm(2) at 600 degrees C. It is suggested that adding Ge, the conductivity as well as performance of this new nanocomposite electrolyte is comparatively enhanced and it can find potential applications in low temperature solid oxide Fuel cells (LTSOFCs).
引用
收藏
页码:170 / 174
页数:5
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