{"title":"Sr-Yb Co-doping of BaCe0.4Zr0.6O3 Proton-Conducting Electrolyte for Solid Oxide Fuel Cells","authors":"Jihai Cheng, Lingling Xu, Hao Liang","doi":"10.1007/s11664-024-11400-6","DOIUrl":null,"url":null,"abstract":"<p>Ba<sub>0.9</sub>Sr<sub>0.1</sub>Ce<sub>0.4</sub>Zr<sub>0.6−<i>x</i></sub>Yb<sub><i>x</i></sub>O<sub>3−δ</sub>(<i>x</i> = 0.05, 0.1, 0.15, 0.2) proton-conducting electrolyte powders were synthesized by the nitrate combustion method. The effects of co-doping of Sr and Yb on the phase composition and electrochemical performance were studied. X-ray diffraction (XRD) results indicate that Sr and Yb were successfully doped into the lattice of BaCe<sub>0.4</sub>Zr<sub>0.6</sub>O<sub>3</sub>, forming a single perovskite phase. The AC impedance technique was used to investigate the total conductivity of the materials under air and water vapor atmospheres at 400–800°C. The results show that BSCZY20 demonstrated the highest electrical conductivity of 0.033 S cm<sup>−1</sup> at 800°C in water vapor. This suggests that the co-doping strategy can effectively enhance the conductivity of BaCe<sub>0.4</sub>Zr<sub>0.6</sub>O<sub>3</sub> proton-conducting material, which provides valuable insight for the development of high-performance proton-conducting solid oxide fuel cells.</p>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":null,"pages":null},"PeriodicalIF":2.2000,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Electronic Materials","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s11664-024-11400-6","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
Ba0.9Sr0.1Ce0.4Zr0.6−xYbxO3−δ(x = 0.05, 0.1, 0.15, 0.2) proton-conducting electrolyte powders were synthesized by the nitrate combustion method. The effects of co-doping of Sr and Yb on the phase composition and electrochemical performance were studied. X-ray diffraction (XRD) results indicate that Sr and Yb were successfully doped into the lattice of BaCe0.4Zr0.6O3, forming a single perovskite phase. The AC impedance technique was used to investigate the total conductivity of the materials under air and water vapor atmospheres at 400–800°C. The results show that BSCZY20 demonstrated the highest electrical conductivity of 0.033 S cm−1 at 800°C in water vapor. This suggests that the co-doping strategy can effectively enhance the conductivity of BaCe0.4Zr0.6O3 proton-conducting material, which provides valuable insight for the development of high-performance proton-conducting solid oxide fuel cells.
期刊介绍：
The Journal of Electronic Materials (JEM) reports monthly on the science and technology of electronic materials, while examining new applications for semiconductors, magnetic alloys, dielectrics, nanoscale materials, and photonic materials. The journal welcomes articles on methods for preparing and evaluating the chemical, physical, electronic, and optical properties of these materials. Specific areas of interest are materials for state-of-the-art transistors, nanotechnology, electronic packaging, detectors, emitters, metallization, superconductivity, and energy applications.
Review papers on current topics enable individuals in the field of electronics to keep abreast of activities in areas peripheral to their own. JEM also selects papers from conferences such as the Electronic Materials Conference, the U.S. Workshop on the Physics and Chemistry of II-VI Materials, and the International Conference on Thermoelectrics. It benefits both specialists and non-specialists in the electronic materials field.
A journal of The Minerals, Metals & Materials Society.
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