TY - JOUR
T1 - Al3+ doped CeO2 for proton conducting fuel cells
AU - Sarfraz,
AU - Rasool, Shahzad
AU - Khalid, Muhammad
AU - Shah, M. A.K.Yousaf
AU - Zhu, Bin
AU - Kim, Jung Sik
AU - Asghar, Muhammad Imran
AU - Akbar, Nabeela
AU - Dong, Wenjing
N1 - Publisher Copyright:
© University of Science and Technology Beijing 2024.
PY - 2024/10
Y1 - 2024/10
N2 - Developing high ionic conducting electrolytes is crucial for applying proton-conducting fuel cell (PCFCs) practically. The current study investigates the effect of alumina on the structural, morphological, electrical, and electrochemical properties of CeO2. Lattice oxygen vacancies are induced in CeO2 by a general doping concept that enables fast ionic conduction at low-temperature ranges (300–500°C) for PCFCs. Rietveld refinement of the X-ray diffraction (XRD) patterns established the pure cubic fluorite structure of Al-doped CeO2 (ADC) samples and confirmed Al ions’ fruitful integration in the CeO2 lattice. The electronic structure of the alumina-doped ceria of the materials (10ADC, 20ADC, and 30ADC) has been investigated. As a result, it was found that the best composition of 30ADC-based electrolytes induced maximum lattice oxygen vacancies. The corresponding PCFC exhibited a maximum power output of 923 mW/cm2 at 500°C. Moreover, the investigation proves the proton-conducting ability of alumina-doped ceria-based fuel cells by using an oxide ion-blocking layer.
AB - Developing high ionic conducting electrolytes is crucial for applying proton-conducting fuel cell (PCFCs) practically. The current study investigates the effect of alumina on the structural, morphological, electrical, and electrochemical properties of CeO2. Lattice oxygen vacancies are induced in CeO2 by a general doping concept that enables fast ionic conduction at low-temperature ranges (300–500°C) for PCFCs. Rietveld refinement of the X-ray diffraction (XRD) patterns established the pure cubic fluorite structure of Al-doped CeO2 (ADC) samples and confirmed Al ions’ fruitful integration in the CeO2 lattice. The electronic structure of the alumina-doped ceria of the materials (10ADC, 20ADC, and 30ADC) has been investigated. As a result, it was found that the best composition of 30ADC-based electrolytes induced maximum lattice oxygen vacancies. The corresponding PCFC exhibited a maximum power output of 923 mW/cm2 at 500°C. Moreover, the investigation proves the proton-conducting ability of alumina-doped ceria-based fuel cells by using an oxide ion-blocking layer.
KW - doping
KW - fast ions transportation
KW - higher fuel cell performance
KW - oxygen vacancies
KW - proton ceramic fuel cells
UR - https://www.scopus.com/pages/publications/85202837858
U2 - 10.1007/s12613-024-2910-z
DO - 10.1007/s12613-024-2910-z
M3 - 文章
AN - SCOPUS:85202837858
SN - 1674-4799
VL - 31
SP - 2253
EP - 2262
JO - International Journal of Minerals, Metallurgy and Materials
JF - International Journal of Minerals, Metallurgy and Materials
IS - 10
ER -