Al^(3+) doped CeO_(2) for proton conducting fuel cells  

作　　者：Sarfraz Shahzad Rasool Muhammad Khalid MAKYousaf Shah Bin Zhu Jung-Sik Kim Muhammad Imran Asghar Nabeela Akbar Wenjing Dong 

机构地区：[1]Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology/Energy Storage joint Research Center,School of Energy and Environment,Southeast University,Nanjing 210096,China [2]School of Microelectronics,Hubei University,Wuhan 430062,China [3]Sino-French Engineer School/School of General Engineering,Beihang University,Beijing 100191,China [4]Renewable Energy Technologies Group,Faculty of Engineering and Natural Sciences,Tampere University,FI-33014,Finland

出　　处：《International Journal of Minerals,Metallurgy and Materials》2024年第10期2253-2262,共10页矿物冶金与材料学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.51772080 and 11604088);the Funding from Science and Technology Department of Jiangsu Province,China(No.BE2022029);the Beijing Natural Science Foundation,China(No.IS23050);Prof.Asghar also thanks the Academy of Finland(Nos.13322738 and 13352669)for the financial support.

摘　　要：Developing high ionic conducting electrolytes is crucial for applying proton-conducting fuel cell(PCFCs)practically.The cur-rent study investigates the effect of alumina on the structural,morphological,electrical,and electrochemical properties of CeO_(2).Lattice oxygen vacancies are induced in CeO_(2) by a general doping concept that enables fast ionic conduction at low-temperature ranges(300-500℃)for PCFCs.Rietveld refinement of the X-ray diffraction(XRD)patterns established the pure cubic fluorite structure of Al-doped CeO_(2)(ADC)samples and confirmed Al ions’fruitful integration in the CeO_(2) 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/cm^(2)at 500℃.Moreover,the investigation proves the proton-conducting ability of alumina-doped ceria-based fuel cells by using an oxide ion-blocking layer.

关 键 词：proton ceramic fuel cells oxygen vacancies higher fuel cell performance DOPING fast ions transportation 

分 类 号：TM911.4[电气工程—电力电子与电力传动]