CAS OpenIR
formationfreeenergyofsodiumstannatemeasuredusingal2o3ceramicelectrolyte
Wang Zhimeng1; Xie Hongwei1; Zhang Yi2; Zhai Yuchun1
2017
Source Publicationraremetals
ISSN1001-0521
Volume036Issue:011Pages:905
Abstractβ-β″-Al2O3precursor powder was successfully prepared by a solid-phase sintering method with Li2CO3, Na2CO3 (as the sources of Li20 and Na20, respectively) and β″-Al2O3 powder as the raw materials. The precursor was characterized by X-ray diffraction (XRD) and scan- ning electron microscope (SEM). The results indicate that the amount of Na20 in the raw materials has a great effect on the formation of β″-Al2O3 in the β-β″-Al2O3 precursor. When Na20 content is 10 wt%, the content of β″-Al2O3 phase reaches the maximum value of 86.24 wt% in the precursor. The β-β″-Al2O3 ceramic was prepared from β-β″-Al2O3 precursor powder by isostatic pressing and burying sintering process. The conductive property of the β-β″-Al2O3 ceramic was examined by electrochemical impedance spectroscopy (EIS) method, and the density was measured by the Archimedes method. The results reveal that when 10 wt% Na20 was added, the sample exhibits the best performance with the lowest resistivity of 4.51.cm and the highest density of 3.25 g.cm 3. A solid electrolyte battery of PtlSnQ, Na2SnO3113 β-β″-Al2O3 Na CrO2, Cr2lO3 Pt was assembled by the β-β″-Al2O3 electrolyte tube to measure the open potential of the resulting battery, and the formation free energy of sodium stannate was calculated In the temperature range of 1273-773 K, the relationship between formation free energy of sodiumstannate and temperature was generated as follows:△GNa2SnO3 0=-1040.83+0.2221T±7.54.
Language英语
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/36238
Collection中国科学院过程工程研究所
Affiliation1.东北大学
2.中国科学院过程工程研究所
Recommended Citation
GB/T 7714
Wang Zhimeng,Xie Hongwei,Zhang Yi,et al. formationfreeenergyofsodiumstannatemeasuredusingal2o3ceramicelectrolyte[J]. raremetals,2017,036(011):905.
APA Wang Zhimeng,Xie Hongwei,Zhang Yi,&Zhai Yuchun.(2017).formationfreeenergyofsodiumstannatemeasuredusingal2o3ceramicelectrolyte.raremetals,036(011),905.
MLA Wang Zhimeng,et al."formationfreeenergyofsodiumstannatemeasuredusingal2o3ceramicelectrolyte".raremetals 036.011(2017):905.
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