Performance of Pr2(Ni,Cu)O4+δ electrodes in protonic ceramic electrochemical cells with unseparated and separated gas spaces

Tarutin, Artem P.; Lyagaeva, Yulia G.; Вылков, А. И.; Gorshkov, M. Yu.; Vdovin, G. K.; Medvedev, Dmitry

doi:10.1016/j.jmst.2021.03.056

Cited by 21 publications

(10 citation statements)

References 54 publications

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“…From electrocatalysts [ 120 ] and MIEC membranes [ 121 ] to SOFCs [ 122 ], PCFCs, and PCECs [ 123 ], every branch of energy application sciences requires novel and highly effective materials for creation of advanced devices and technologies. The active growth of investigation of cathode materials with layered perovskite structure [ 46 , 47 , 48 , 49 , 50 ] makes the task of creating electrochemical sources with the same type of structure of electrolyte more relevant. Sure enough, proton-conducting layered perovskites must take a significant place in the roadmap of future inorganic materials science.…”

Section: Discussionmentioning

confidence: 99%

“…For the last 30 years, different compositions with K 2 NiF 4 or related structures were described as superconductors [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 ], giant and colossal magnetoresistors [ 27 , 28 , 29 , 30 ], microwave dielectrics [ 31 , 32 , 33 , 34 , 35 ], phosphors [ 36 , 37 , 38 , 39 ], mixed ionic and electronic conductors (MIEC) [ 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 ], dielectrics [ 51 , 52 , 53 , 54 , 55 ], magnetic materials [ 56 , 57 , 58 ], thermoelectrics [ 59 , 60 , 61 , 62 ], photocatalysts for hydrogen production [ 63 , 64 , 65 ], oxygen-ionic conductors [ 66 , 67 ,…”

Section: Structure Of Layered Perovskite-related Materialsmentioning

confidence: 99%

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Materials AIILnInO4 with Ruddlesden-Popper Structure for Electrochemical Applications: Relationship between Ion (Oxygen-Ion, Proton) Conductivity, Water Uptake, and Structural Changes

Tarasova

Анимица

2021

Materials

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In this paper, the review of the new class of ionic conductors was made. For the last several years, the layered perovskites with Ruddlesden-Popper structure AIILnInO4 attracted attention from the point of view of possibility of the realization of ionic transport. The materials based on Ba(Sr)La(Nd)InO4 and the various doped compositions were investigated as oxygen-ion and proton conductors. It was found that doped and undoped layered perovskites BaNdInO4, SrLaInO4, and BaLaInO4 demonstrate mixed hole-ionic nature of conductivity in dry air. Acceptor and donor doping leads to a significant increase (up to ~1.5–2 orders of magnitude) of conductivity. One of the most conductive compositions BaNd0.9Ca0.1InO3.95 demonstrates the conductivity value of 5∙10−4 S/cm at 500 °C under dry air. The proton conductivity is realized under humid air at low (<500 °C) temperatures. The highest values of proton conductivity are attributed to the compositions BaNd0.9Ca0.1InO3.95 and Ba1.1La0.9InO3.95 (7.6∙10−6 and 3.2∙10−6 S/cm correspondingly at the 350 °C under wet air). The proton concentration is not correlated with the concentration of oxygen defects in the structure and it increases with an increase in the unit cell volume. The highest proton conductivity (with 95−98% of proton transport below 400 °C) for the materials based on BaLaInO4 was demonstrated by the compositions with dopant content no more that 0.1 mol. The layered perovskites AIILnInO4 are novel and prospective class of functional materials which can be used in the different electrochemical devices in the near future.

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Section: Discussionmentioning

confidence: 99%

Section: Structure Of Layered Perovskite-related Materialsmentioning

confidence: 99%

Materials AIILnInO4 with Ruddlesden-Popper Structure for Electrochemical Applications: Relationship between Ion (Oxygen-Ion, Proton) Conductivity, Water Uptake, and Structural Changes

Tarasova

Анимица

2021

Materials

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“…This strategy is constantly developing due to the design of new electrolyte materials, 121,138–141 novel thin-film technologies, 32,142,143 and innovative highly active electrode systems. 144–148…”

Section: Electronic Transport Of Individual Proton-conducting Materialsmentioning

confidence: 99%

Electrochemistry and energy conversion features of protonic ceramic cells with mixed ionic-electronic electrolytes

Zvonareva

Medvedev

et al. 2022

Energy Environ. Sci.

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145

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“…In addition, the closeness of the activation energy and capacity values for both cells denotes the common nature of the processes. The nature of the processes may be associated with oxygen adsorption–desorption occurring at the electrode surfaces [ 64 ]. The decrease in partial polarization resistance P 2 observed for the PNC samples, may be caused by the microstructural peculiarities of the material.…”

Section: Resultsmentioning

confidence: 99%

Nickel-Containing Perovskites, PrNi0.4Fe0.6O3–δ and PrNi0.4Co0.6O3–δ, as Potential Electrodes for Protonic Ceramic Electrochemical Cells

et al. 2022

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Protonic ceramic fuel cells (PCFCs) offer a convenient means of converting chemical energy into electricity with high performance and efficiency at low- and intermediate-temperature ranges. However, in order to ensure good life-time stability of PCFCs, it is necessary to ensure rational chemical design in functional materials. Within the present work, we propose new Ni-based perovskite phases of PrNi0.4M0.6O3–δ (where M = Co, Fe) for potential utilization in protonic ceramic electrochemical cells. Along with their successful synthesis, functional properties of the PrNi0.4M0.6O3–δ materials, such as chemical compatibility with a number of oxygen-ionic and proton-conducting electrolytes, thermal expansion behavior, electrical conductivity, and electrochemical behavior, were comprehensively studied. According to the obtained data, the Co-containing nickelate exhibits excellent conductivity and polarization behavior; on the other hand, it demonstrates a high reactivity with all studied electrolytes along with elevated thermal expansion coefficients. Conversely, while the iron-based nickelate had superior chemical and thermal compatibility, its transport characteristics were 2–5 times worse. Although, PrNi0.4Co0.6O3–δ and PrNi0.4Fe0.6O3–δ represent some disadvantages, this work provides a promising pathway for further improvement of Ni-based perovskite electrodes.

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Performance of Pr2(Ni,Cu)O4+δ electrodes in protonic ceramic electrochemical cells with unseparated and separated gas spaces

Cited by 21 publications

References 54 publications

Materials AIILnInO4 with Ruddlesden-Popper Structure for Electrochemical Applications: Relationship between Ion (Oxygen-Ion, Proton) Conductivity, Water Uptake, and Structural Changes

Materials AIILnInO4 with Ruddlesden-Popper Structure for Electrochemical Applications: Relationship between Ion (Oxygen-Ion, Proton) Conductivity, Water Uptake, and Structural Changes

Electrochemistry and energy conversion features of protonic ceramic cells with mixed ionic-electronic electrolytes

Nickel-Containing Perovskites, PrNi0.4Fe0.6O3–δ and PrNi0.4Co0.6O3–δ, as Potential Electrodes for Protonic Ceramic Electrochemical Cells

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