Materials Search of Perovskite Cathode in SOFC by Statistical Analysis

Hwang, Jaekyun; Ando, Yasunobu; Watanabe, Satoshi

doi:10.1149/06801.0549ecst

Cited by 3 publications

(3 citation statements)

References 28 publications

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“…[40] The main problem, however, has been the stability [19] of this material which has been tackled by doping the system with Sr which replaces Ln in the structure to give the strontium-substituted cobaltite perovskites (LSC: La 1−x Sr x CoO 3−δ ). [30] LSC is a mixed conductor material and has shown good ionic conductivity and ORR catalytic properties. [41][42][43] The major issue with LSC, however, is its high TEC, of the order of 20 × 10 -6 K −1 .…”

Section: Substituted Lanthanum Cobaltitementioning

confidence: 99%

“…Total conductivity (S/cm) Ionic conductivity (S/cm) TEC (× 10 -6 °C−1 ) LaMnO 3 71 (700°C) [23] -9.5-10.75 (25-1000 °C) [24] La 0.8 Sr 0.2 MnO 3−δ 150(500°C) [25] 4.2 × 10 -10 (750°C) [26] 11.8 (30-1000 °C) [25] La 0.6 Sr 0.4 MnO 3−δ 125 (700°C) [27] -11.7-12.2 (25-1000 °C) [25] La 0.6 Sr 0.4 CoO 3−δ 1084 (1000°C) [28] 0.22 (800°C) [29] 20.5 (30-1000°C) [29] La 0.8 Sr 0.2 CoO 3−δ 1291 (1000°C) [28] 4.9 × 10 -4 (750°C) [30] 19.7 (100-900°C) [31] La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3−δ 320 (700°C) [31] 8 × 10 -3 (800°C) [29] 15.3 (100-600°C) [31] La 2 NiO 4+δ 85 (700°C) [32] 4 × 10 -2 (800°C) [33] 13.8 (75-900°C) [34] La 4 NiO 10±δ 87 (800°C) [35] -11.5 (250-800°C) [36] Pr 4 NiO 10±δ 90 (600°C) [37] -12 (25-1000°C) [37] There have been various attempts to resolve this cathode degradation but not with profound success yet. Use of electrical polarisation to de-segregate the strontium [58,59] and use of acid-etching to reduce the formation of passivating (Ce, Zr, Gd, Y)O 2−δ layers [56,60] and also an attempt to stop Cr poisoning by coating [61] the steel interconnects have been used but with less success.…”

Section: Materials Compositionmentioning

confidence: 99%

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Solid-oxide fuel cells: A critical review of materials for cell components

Yatoo

Habib

Malik³

et al. 2023

MRS Communications

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Solid-oxide fuel cells are efficient devices for the conversion of chemical to electrical energy and a typical solid-oxide fuel cell consists of a solid electrolyte, cathode, and anode. In the last few decades, researchers have been working extensively on materials development for different components of these devices. In this review article, we briefly discuss the requirements for different components and review prominent materials families explored by the scientific community. As the search for greener energy alternatives such as solid-oxide fuel cells has intensified manifold due to the climate change emergency, a substantial literature was produced on the materials development of these devices and, therefore, we believe a brief review article dedicated to the same will be valuable for the scientific community, particularly new young entrant researchers in the field. Graphical Abstract

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Section: Substituted Lanthanum Cobaltitementioning

confidence: 99%

Section: Materials Compositionmentioning

confidence: 99%

Solid-oxide fuel cells: A critical review of materials for cell components

Yatoo

Habib

Malik³

et al. 2023

MRS Communications

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“…Ionic conductivity (S/cm) TEC (x 10 La0.8Sr0.2CoO3- 1291 (1000 °C) 30 4.9 x 10 -4 (750 °C) 32 19.7 (100 -900 °C) 33…”

Section: Materials Composition Total Conductivity (S/cm)mentioning

confidence: 99%

A Critical Review on Materials for Solid Oxide Fuel Cell Components

Yatoo

Habib

Malik³

et al. 2023

Preprint

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Solid-oxide fuel cells are efficient devices for the conversion of chemical to electrical energy and a typical solid-oxide fuel cell consists of a solid electrolyte, cathode, and anode. In the last few decades, researchers have been working extensively on materials development for different components of these devices. In this review article, we briefly discuss the requirements for different components and review prominent materials families explored by the scientific community. As the search for greener energy alternatives such as solid-oxide fuel cells have intensified manifold due to the climate change emergency, a substantial literature was produced on the materials development of these devices and, therefore, we believe a brief review article dedicated to the same will be valuable for the scientific community, particularly new young entrant researchers in the field.

show abstract