Low Thermal Conductivity of RE-Doped SrO(SrTiO3)1 Ruddlesden Popper Phase Bulk Materials Prepared by Molten Salt Method

Putri, Yulia Eka; Said, Suhana Mohd; Refinel, Refinel; Ohtaki, Michitaka; Syukri, Syukri

doi:10.1007/s13391-018-0062-x

Cited by 10 publications

(9 citation statements)

References 28 publications

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“…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%

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: 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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“…2,3 Therefore, it was utilized as a host doped with rare-earth ions such as Eu 3+ , Ho 3+ , Sm 3+ , and Dy 3+ . 2,12–15…”

Section: Introductionmentioning

confidence: 99%

Energetic structure of Sm³⁺ luminescence centers in Sr₂TiO₄

et al. 2022

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“…[3] It is well known that the properties of the RP phase depend on the nature and composition of cations at the A-a nd B-site. [4][5][6][7] As reported in [6], antiferromagnetic interactionsi nS rLaMnO 4 gradually decrease when strontium is partially substituted by barium. Sr 2 TiO 4 ,w hich has been found to have no absorption in the visible light spectrum can intensely absorbi nt he 400-600 nm range after doping with Fe 3 + and La 3 + .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Sr_1+2xLa_1‐2xFe_1‐xNb_xO₄ (x=0, 0.1, 0.3, and 0.5) by Sol‐gel Method: Structural, Magnetic, and Dielectric Properties

et al. 2020

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REPRINTz Materials Science inc. Nanomaterials &Polymers Synthesis of Sr 1 + + 2x La 1-2x Fe 1-x Nb x O 4 (x = 0, 0.1, 0.3, and 0.5) by Sol-gel Method: Structural, Magnetic, and Dielectric PropertiesArif Kurnia, [a] Emriadi, [a] NandangM ufti, [b] and Zulhadjri* [a] One -l ayered Ruddlesden-Popper phase Sr 1 + 2x La 1-2x Fe 1-x Nb x O 4 doped with niobium was synthesized using as ol-gel method for various Nb concentrations (x = 0, 0.1, 0.3, and 0.5). Singlephase samples could be observed with x = 0a nd 0.1, while x = 0.3 and 0.5 contain additional phases.M icrostructurer esults showed that the increase of niobium content corresponded to ad ecrease in the grain size of the samples. The magnetic measurements indicated that antiferromagnetic interactions of doped samples had decreased. The dielectric constant of the samples decreased as x increased due to the increase in conductivity. The origin of conductioni nthe samples might be caused by hopping conduction due to the mixed oxidation states of iron with charge + 3and + 4.

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Low Thermal Conductivity of RE-Doped SrO(SrTiO3)1 Ruddlesden Popper Phase Bulk Materials Prepared by Molten Salt Method

Cited by 10 publications

References 28 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

Energetic structure of Sm³⁺ luminescence centers in Sr₂TiO₄

Synthesis of Sr_1+2xLa_1‐2xFe_1‐xNb_xO₄ (x=0, 0.1, 0.3, and 0.5) by Sol‐gel Method: Structural, Magnetic, and Dielectric Properties

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Low Thermal Conductivity of RE-Doped SrO(SrTiO3)1 Ruddlesden Popper Phase Bulk Materials Prepared by Molten Salt Method

Cited by 10 publications

References 28 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

Energetic structure of Sm3+ luminescence centers in Sr2TiO4

Synthesis of Sr1+2xLa1‐2xFe1‐xNbxO4 (x=0, 0.1, 0.3, and 0.5) by Sol‐gel Method: Structural, Magnetic, and Dielectric Properties

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Energetic structure of Sm³⁺ luminescence centers in Sr₂TiO₄

Synthesis of Sr_1+2xLa_1‐2xFe_1‐xNb_xO₄ (x=0, 0.1, 0.3, and 0.5) by Sol‐gel Method: Structural, Magnetic, and Dielectric Properties