Evaluation of Ce-doped Pr<sub>2</sub>CuO<sub>4</sub>for potential application as a cathode material for solid oxide fuel cells

Kolchina, L. M.; Лысков, Н. В.; Kuznetsov, A. N.; Kazakov, Sergey M.; Galin, Monique; Meledin, Alexander; Abakumov, Artem M.; Bredikhin, S. I.; Мазо, Г. Н.; Antipov, Evgeny V.

doi:10.1039/c6ra21970e

Cited by 22 publications

(3 citation statements)

References 59 publications

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“…Kolchina et al [72] also found similar non-linear variation of the Arrhenius ASR plot for Pr 2−x Ce x CuO 4 compounds, with smaller E ACT values and smaller differences in the slopes, compared to our results. Hart et al reported a variation in E ACT at 700°C for graded cathodes La 0.85 Sr 0.15 MnO 3 -YSZ, with higher values (1.42-1.51 eV) in the HT range compared to LT range (1.01-1.05 eV) [73].…”

Section: U N C O R R E C T E D P R O O Fsupporting

confidence: 87%

Electrochemical characterization of PrBa2−xSrxCu3O6+δ layered oxides as innovative and efficient oxygen electrode for IT-SOFCs

et al. 2020

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PrBa 2 Cu 3 O 6+δ (P) and PrBa 1.5 Sr 0.5 Cu 3 O 6+δ (PS) layered perovskite-type oxides are synthesized and characterized as oxygen electrodes in IT-SOFCs. The layered structure of P and PS compounds is constituted by the regular alternation along the crystallographic c axis of Pr O planes, Cu 2+ chains (CN = 4) and Cu 3+ pyramidal (CN = 5) layers. Interesting features of the PrBa 2 Cu 3 O 6+δ structure are the absence of cobalt, the presence of aliovalent cations and large amounts of oxygen vacancies. The substitution of 25% Ba with Sr is evaluated in order to improve the electronic conductivity of the undoped material. The compounds are synthesized via Citrate-Nitrate procedure and characterized by XRPD, 4-probe conductivity tests (100-800°C) and EIS measurements on symmetric cells in air varying the temperature (450-850°C). SEM images of post mortem cells are collected to evaluate the adhesion between components, layers thickness and particle morphology. Sr doping does not significantly improve the electrical conductivity but prompts a considerable hysteresis in the P sample between the cooling and the heating ramps. Conductivity values are lower than 100 S cm − 1 , but no electrical limitations are observed in EIS results. The introduction of a thin PrDC interlayer greatly reduces the Area Specific Resistances for both the compounds and the 0.15 Ω cm 2 target is almost fulfilled at 600°C (0.17 Ω cm 2 for PS + PrDC sample).

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Section: U N C O R R E C T E D P R O O Fsupporting

confidence: 87%

Electrochemical characterization of PrBa2−xSrxCu3O6+δ layered oxides as innovative and efficient oxygen electrode for IT-SOFCs

et al. 2020

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“…The CGO-supported SOFC with Pr2CuO4 (as the cathode material) was able to deliver 0.1 W cm -2 power density at 800 °C. For Pr1.95Ce0.05CuO4 oxide in the configuration of Ni-10Sc1CeSZ/10Sc1YSZ/ CGO/Pr1.95Ce0.05CuO4, the cell delivered 0.15 W cm -2 at the same temperature [80,84]. Interesting electrochemical performance, SOFC output 0.16 W cm -2 at 800 °C with LSGM (lanthanum gallate doped with strontium and magnesium) as electrolyte, was reported for Sr-doped La2CuO4 [82].…”

Section: Layered Ln2cuo4±δ As the Possible Air Electrodementioning

confidence: 99%

Development of novel air electrode materials for the SOFC and SOEC technologies

Niemczyk

Świerczek

2019

E3S Web Conf.

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One of major goals in the development of solid oxide fuel cells and its reversible mode, solid oxide electrolyzer cells, is related to a decrease of the operating temperature, down to the intermediate range (600-800 °C) or even lower temperatures. However, this reduction causes an increase of the polarization resistance, especially for the air electrode, which results in a significant decline of the efficiency of the device. Therefore, it is essential to obtain new, thermally and chemically stable materials with the high ionic-electronic conductivity and good catalytic activity for the oxygen reduction reaction working in the decreased temperature range. At the same time, environmental and economic aspects have to be considered in the development of the new compounds. Promising cobalt-free electrode materials can be Cu-based oxides with the perovskite and perovskite-related structures.

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“…Compared to the traditional ABO3 perovskite oxides, these A2BO4 materials show relatively large oxygen ion conductivity and promising electrode performance. Therefore, Nickelate and copper based A2BO4 oxides with mixed ionic-electronic conducting (MIEC) properties have been thoroughly evaluated as cathode materials for IT-SOFCs [7][8][9][10][11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Tuning the high temperature properties of PrSrCoO4 cathode with Cu2+ dopant for intermediate temperature solid oxide fuel cells

Liu

Sun

et al. 2020

Renewable Energy

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PrSrCo1-xCuxO4+ (x = 0.0, 0.1, 0.3, 0.5) are synthesized by solid-state reaction method. The effects of Cu 2+ doping on electrical conductivity, thermal expansion, oxygen diffusion properties and oxygen reduction reaction (ORR) activity are investigated. PrSrCo1-xCuxO4+ oxides crystallize in a single-phase tetragonal structure with I4/mmm space group. Partial substitution Co 3+ by Cu 2+ results the increase of electrical conductivity and decrease of thermal expansion coefficient. Introducing Cu 2+ promotes the formation of interstitial oxygen, accelerates the kinetics of oxygen transport, and significantly improves the electrocatalytic activity of

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Evaluation of Ce-doped Pr₂CuO₄for potential application as a cathode material for solid oxide fuel cells

Abstract: Pr2−xCexCuO4(x= 0.05; 0.1; 0.15) samples were synthesized and systematically characterized towards application as a cathode material for solid oxide fuel cells (SOFCs).

Cited by 22 publications

References 59 publications

Electrochemical characterization of PrBa2−xSrxCu3O6+δ layered oxides as innovative and efficient oxygen electrode for IT-SOFCs

Electrochemical characterization of PrBa2−xSrxCu3O6+δ layered oxides as innovative and efficient oxygen electrode for IT-SOFCs

Development of novel air electrode materials for the SOFC and SOEC technologies

Tuning the high temperature properties of PrSrCoO4 cathode with Cu2+ dopant for intermediate temperature solid oxide fuel cells

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Evaluation of Ce-doped Pr2CuO4for potential application as a cathode material for solid oxide fuel cells

Abstract: Pr2−xCexCuO4(x= 0.05; 0.1; 0.15) samples were synthesized and systematically characterized towards application as a cathode material for solid oxide fuel cells (SOFCs).

Cited by 22 publications

References 59 publications

Electrochemical characterization of PrBa2−xSrxCu3O6+δ layered oxides as innovative and efficient oxygen electrode for IT-SOFCs

Electrochemical characterization of PrBa2−xSrxCu3O6+δ layered oxides as innovative and efficient oxygen electrode for IT-SOFCs

Development of novel air electrode materials for the SOFC and SOEC technologies

Tuning the high temperature properties of PrSrCoO4 cathode with Cu2+ dopant for intermediate temperature solid oxide fuel cells

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Evaluation of Ce-doped Pr₂CuO₄for potential application as a cathode material for solid oxide fuel cells