Effect of annealing on the electrical conductivity of the Y2O3–ZrO2 system

Hattori, Motonobu; Takeda, Yasuo; Lee, J.-H.; Ohara, Satoshi; Mukai, Kosuke; Fukui, Takehisa; Takahashi, Shuzo; Sakaki, Yoshinori; Nakanishi, Atsuo

doi:10.1016/j.jpowsour.2003.11.084

Cited by 42 publications

(38 citation statements)

References 8 publications

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“…The Raman scattering results suggest that cubic phase is formed as major phase with a broad band near 630 cm −1 together with a background profile as reported in the previous works [20,21]. However, the bands of about 260, 330 and 475 cm −1 were included in six broad bands predicted by group theory for the typical tetragonal phase [22], demonstrating that the samples prepared by homogeneous precipitation contain the tetragonal structure as minor phase.…”

Section: Raman Scatteringsupporting

confidence: 74%

Synthesis and characteristics of nanocrystalline YSZ by homogeneous precipitation and its electrical properties

Xin

Lü

Ding

et al. 2006

Journal of Alloys and Compounds

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Section: Raman Scatteringsupporting

confidence: 74%

Synthesis and characteristics of nanocrystalline YSZ by homogeneous precipitation and its electrical properties

Xin

Lü

Ding

et al. 2006

Journal of Alloys and Compounds

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“…• Loss of conductivity of the electrolyte A phase change of the electrolyte or the diffusion of impurities or dopants can decrease the ionic conductivity [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Investigation of Degradation Mechanisms by Particle Coarsening in SOFC Electrodes

et al. 2009

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Performance degradation data obtained from single Solid oxide fuel cells, tested at 850 degrees C with air and humidified H-2 and using Ni-YSZ anode supported cells, are presented here. Microscopic investigation is carried out on both anode and cathode to quantify variations in the morphology at different operation times. The comparison between the measurements On the cells and the SEM Image analysis, allows to conclude that there is no relationship between the initial cell activation and microstructural modifications of the electrodes. On the other hand, it was found that cell degradation is Strictly related to the coarsening of Ni particles occurring in the anode. A theoretical analysis based. on an electrode micro-model has been performed in order to compare the variation in performance, expected from particle size change, with the observed data. The model confirmed the conclusions of the experimental results

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“…For verification with literature measurements, the conductivity of the synthesized LSGM electrolyte was measured using a four-probe DC technique [15][16][17]. The measured conductivities are shown in Fig.…”

Section: Conductivity Measurement Of Lsgm Electrolytementioning

confidence: 77%

Performance of intermediate temperature (600–800°C) solid oxide fuel cell based on Sr and Mg doped lanthanum-gallate electrolyte

Gong

Gopalan

Pal

2006

Journal of Power Sources

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Effect of annealing on the electrical conductivity of the Y2O3–ZrO2 system

Cited by 42 publications

References 8 publications

Synthesis and characteristics of nanocrystalline YSZ by homogeneous precipitation and its electrical properties

Synthesis and characteristics of nanocrystalline YSZ by homogeneous precipitation and its electrical properties

Experimental and Theoretical Investigation of Degradation Mechanisms by Particle Coarsening in SOFC Electrodes

Performance of intermediate temperature (600–800°C) solid oxide fuel cell based on Sr and Mg doped lanthanum-gallate electrolyte

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