A promising Nb-doped La0.5Sr0.5Co0.8Cu0.2O3–δ cathode materials for intermediate temperature solid oxide fuel cells

Chen, Ru-Yi; Zhou, Defeng; Zhu, Xiaofei; Wang, Ning; Bai, Jinghe; Guo, Chun-Qi; Lian, Ai

doi:10.1016/j.jallcom.2022.166526

Cited by 12 publications

(2 citation statements)

References 52 publications

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“…Cobalt oxides have attracted much attention due to their rich structural, physical, and chemical properties. [1][2][3][4][5][6][7] Research on the multiple-phase structure evolution and controllable synthesis of ceramics based on cobalt oxides will provide a deeper scientific understanding and application value of this material family. [7][8][9][10][11][12][13][14][15][16] SrCoO 3−δ , a well-known phase transition material, has an orthorhombic brownmillerite (OB) structure at room temperature, which can become a hexagonal (H) structure at 653 °C and a cubic perovskite (CP) structure at 920 °C.…”

Section: Introductionmentioning

confidence: 99%

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Multiple-phase evolution and electrical transport of Sr_4−xY_xCo₄O_12−δ (x = 0–1.0): an ordered phase transition process

et al. 2023

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Section: Introductionmentioning

confidence: 99%

“…Cobalt oxides have attracted much attention due to their rich structural, physical, and chemical properties. 1–7 Research on the multiple-phase structure evolution and controllable synthesis of ceramics based on cobalt oxides will provide a deeper scientific understanding and application value of this material family. 7–16…”

Section: Introductionmentioning

confidence: 99%

Multiple-phase evolution and electrical transport of Sr_4−xY_xCo₄O_12−δ (x = 0–1.0): an ordered phase transition process

et al. 2023

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Properties of cobalt-doped SrTiO3 derived from two methods: the modified Pechini method and the citrate combustion method

Mizera,

Drożdż

2023

J Therm Anal Calorim

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Two wet-synthesis methods: citrate-combustion and modified (with PVA addition) Pechini synthesis were used to obtain Co-doped strontium titanate with assumed chemical compositions of SrTi1−xCoxO3 (where x = 0.02; 0.06; 0.10). All samples were calcined at 900 °C and sintered at 1200 °C, with PVA series being also calcined at 700 and 800 °C, since TG measurements indicated for this method materials lower minimal calcination temperature than for the citrate-combustion series materials. In general, the modified Pechini approach lowers calcination temperature of materials (up to 200 °C) and produces more structurally homogeneous materials than in the case of the citrate-combustion methods. However, the HT XRD measurements reveal the presence of extra cobalt oxide phases in pva_STO_xCo materials that were not visible using conventional XRD measurements. The presence of cobalt oxide has been confirmed for both series of materials based on TPR tests. Moreover, these measurements indicate the incorporation of some amount of cobalt into the perovskite structure. The fact of substituting titanium with cobalt in SrTiO3 structure seems to be confirmed by the results of XAS studies. Additionally, XAS results allowed us to state that Co2+/Co3+ ratio fell as cobalt loading increased in the materials. The examination of SrTiO3 lattice parameter changes for sintered samples is consistent with the findings of the XAS tests and indicates that cobalt adopts +2 oxidation state in the case of the material with the lowest Co content, and the share of Co3+ increases with the growth of the Co amount introduced into the system.

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Bi0.5Sr0.5FeO3-δ perovskite B-site doped Ln (Nd, Sm) as cathode for high performance Co-free intermediate temperature solid oxide fuel cell

Bai

Zhou

Zhu

et al. 2023

Ceramics International

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A promising Nb-doped La0.5Sr0.5Co0.8Cu0.2O3–δ cathode materials for intermediate temperature solid oxide fuel cells

Cited by 12 publications

References 52 publications

Multiple-phase evolution and electrical transport of Sr_4−xY_xCo₄O_12−δ (x = 0–1.0): an ordered phase transition process

Multiple-phase evolution and electrical transport of Sr_4−xY_xCo₄O_12−δ (x = 0–1.0): an ordered phase transition process

Properties of cobalt-doped SrTiO3 derived from two methods: the modified Pechini method and the citrate combustion method

Bi0.5Sr0.5FeO3-δ perovskite B-site doped Ln (Nd, Sm) as cathode for high performance Co-free intermediate temperature solid oxide fuel cell

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A promising Nb-doped La0.5Sr0.5Co0.8Cu0.2O3–δ cathode materials for intermediate temperature solid oxide fuel cells

Cited by 12 publications

References 52 publications

Multiple-phase evolution and electrical transport of Sr4−xYxCo4O12−δ (x = 0–1.0): an ordered phase transition process

Multiple-phase evolution and electrical transport of Sr4−xYxCo4O12−δ (x = 0–1.0): an ordered phase transition process

Properties of cobalt-doped SrTiO3 derived from two methods: the modified Pechini method and the citrate combustion method

Bi0.5Sr0.5FeO3-δ perovskite B-site doped Ln (Nd, Sm) as cathode for high performance Co-free intermediate temperature solid oxide fuel cell

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Multiple-phase evolution and electrical transport of Sr_4−xY_xCo₄O_12−δ (x = 0–1.0): an ordered phase transition process

Multiple-phase evolution and electrical transport of Sr_4−xY_xCo₄O_12−δ (x = 0–1.0): an ordered phase transition process