The phase stability and conductivity of Ho2O3–Gd2O3 co-doped electrolyte for solid oxide fuel cell

Çorumlu, Vahit; Ermiş, İsmail; Acer, Semra Durmuş; Çifci, T.; Dağdemir, Yılmaz; Matmon, Ari

doi:10.1007/s10854-016-4500-y

Cited by 7 publications

(5 citation statements)

References 32 publications

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“…Rare earth sesquioxides (RES) play a vital role in many technologically important applications in the fields of solidstate lasers, solid-oxide fuel cells, radiation detectors, waveguides, scintillating materials, random-access memory devices and sensing (Irshad, Chandra Shekar, Ravindran et al, 2017;Krä nkel, 2015;Ç orumlu et al, 2016;Guo et al, 2004;Ting et al, 2014;Walsh et al, 2002;Salek et al, 2016). The entire lanthanide oxide series has been found to be intrinsically hydrophobic in nature.…”

Section: Introductionmentioning

confidence: 99%

Microstrain-assisted polymorphic phase transitions in (Eu_1−xLa _x )₂O₃

et al. 2019

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Solid solutions, (Eu 1Àx La x ) 2 O 3 (0 x 1), of the rare earth sesquioxides Eu 2 O 3 and La 2 O 3 have been prepared by a simple soft chemistry approach. The composition and morphology of the as-synthesized oxides have been characterized using energy-dispersive spectroscopy and scanning electron microscopy. The particles are of irregular shape and submicrometre size. In order to understand the structural evolution as a function of composition, angledispersive X-ray diffraction measurements have been carried out and the structural parameters have been obtained through Rietveld refinement. A structural phase transition from the cubic (C-type) to the monoclinic (B-type) structure and subsequently to the hexagonal (A-type) structure was observed with an increasing substitution of La. A detailed analysis of the transition boundaries in terms of the average cationic radius, R RE , shows that the onset of the C ! B transition is at R RE = 0.980 Å , whereas the B ! A transition occurs at R RE = 1.025 Å . A biphasic region of cubic and monoclinic structures is observed for 0.2 x 0.4 and one of monoclinic and hexagonal structures is observed for 0.5 x 0.6. The microstrain induced by the difference in size of the rare earth cations introduces a substitutional disorder in the crystal structure, which is a plausible cause of the observed phase transitions in these oxides.

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Section: Introductionmentioning

confidence: 99%

Microstrain-assisted polymorphic phase transitions in (Eu_1−xLa _x )₂O₃

et al. 2019

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“…10,11 In addition, they offer diverse applications in the field of new materials, for example, smart system integration, and as materials for micro-and nano-systems, nanostructures and devices. [12][13][14][15][16][17][18][19] Meanwhile, a large number of transition metal carboxylate complexes, including lanthanide carboxylates exist. Despite the vast number of complexes with organic carboxylates as ligands, much less is known about complexes featuring redox-active organometallic or metalorganic carboxylates.…”

Section: Introductionmentioning

confidence: 99%

Ferrocenyl-based di- and trinuclear lanthanide complexes: solid state structures, (spectro)electrochemical and DFT studies

Khalladi,

Kovalski,

Abdulmalic

et al. 2023

Dalton Trans.

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“…However, the challenges associated with the exiting fuel cells such as electrolyte functionality at high temperatures (900–1000 K) impede their widespread implementation in energy sectors where researchers have been striving continuously over a few decades to replace the existing yttria-stabilized zirconia (YSZ) electrolyte with REEs. For instance, Corumlu et al (2016) developed Bi 2 O 3 ternary system sample materials with stabilized Ho 2 O 3 and Gd 2 O 3 that have a maximum conductivity of 2.53 × 10 –1 S cm –1 at 973 K . In addition, Nd 3+ and Dy 3+ codoped Ce 0.8 Nd x ‑y Dy y O 2‑{ x ‑ y /2+ y } ( x = 0.2, y = 0.04, 0.08, 0.1), Au/Dy 2 O 3 , the binary system of (Bi 2 O 3 ) 1– x (Yb 2 O 3 ) x , Bi 3+ -doped Ce 0.75‑ x Bi x Gd 0.25 O 2 ( x = 0.0, 0.05, 0.10), CeO 2 tridoped with LiBi and Gd are the recently developed electrolyte systems.…”

Section: Introductionmentioning

confidence: 99%

Current Applications and Future Potential of Rare Earth Oxides in Sustainable Nuclear, Radiation, and Energy Devices: A Review

Hossain

Raihan

Akbar

et al. 2022

ACS Appl. Electron. Mater.

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To date, rare earth oxides (REOs) have proven to be key components in generating sustainable energy solutions, ensuring environmental safety and economic progress due to their diverse attributes. REOs' exceptional optical, thermodynamic, and chemical properties have made them indispensable in a variety of sophisticated technologies, including electric vehicle magnets, portable energy devices, fuel cell catalysts, radiation shielding, dosimetry, and many others. Therefore, the successful incorporation of rare earth elements (REEs) into host materials in controlled concentrations offers competitive advantages to fabricate portable energy devices, radiation sensors, and radiation shielding glasses, as well as to improve the performance of existing photovoltaic cells, which is of great interest to both researchers and industry. As the global demand for REEs grows rapidly, it is critical to comprehend the underlying physics as well as the wider consequences of REEs on sustainable energy and nuclear technologies, both in the near and long term. However, despite their relevance, a focused review on the applications, prospects, and challenges of REOs in photovoltaics, nuclear, and energy devices is still unavailable. To this effort, this review succinctly reports recent experimental studies on eight REOs (R 2 O 3 , R = Yb, Er, Sm, Eu, Y, Gd, Dy, and Ce) and their specific applications and industrial aspects. While several subdomains are reported, the applications of REOs in next-generation solar cells and photovoltaic devices for promoting zero-emission clean energy and rechargeable batteries for electric vehicles (EVs) are the most pioneering ones. Furthermore, REOs' chemical stability and compositional versatility allow them to be used in a variety of high-efficiency energy converters, including solid oxide fuel cells (SOFCs). From the perspective of thermodynamic and structural stability, the gamma and neutron absorptivity of REO-doped (such as Dy 3+ , Eu 3+ , Sm 3+ , Nd 3+ , etc.) glasses shows improved shielding performance in radiation domains. Aside from the applications, the prospects of REOs presented in this article are likely to encourage current and future scholars to pursue a wide range of important studies in the fields of energy and nuclear systems. This review also reports the key challenges (i.e., material degradation, phase transformation, magnetic entropy shift, etc.) associated with REOs in a standalone section. These challenges demand the immediate attention of scientists and engineers for efficient, costeffective, and environmentally sustainable solutions. At the end, future advancement pathways for REO applications are also suggested.

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The phase stability and conductivity of Ho2O3–Gd2O3 co-doped electrolyte for solid oxide fuel cell

Cited by 7 publications

References 32 publications

Microstrain-assisted polymorphic phase transitions in (Eu_1−xLa _x )₂O₃

Microstrain-assisted polymorphic phase transitions in (Eu_1−xLa _x )₂O₃

Ferrocenyl-based di- and trinuclear lanthanide complexes: solid state structures, (spectro)electrochemical and DFT studies

Current Applications and Future Potential of Rare Earth Oxides in Sustainable Nuclear, Radiation, and Energy Devices: A Review

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The phase stability and conductivity of Ho2O3–Gd2O3 co-doped electrolyte for solid oxide fuel cell

Cited by 7 publications

References 32 publications

Microstrain-assisted polymorphic phase transitions in (Eu1−x La x )2O3

Microstrain-assisted polymorphic phase transitions in (Eu1−x La x )2O3

Ferrocenyl-based di- and trinuclear lanthanide complexes: solid state structures, (spectro)electrochemical and DFT studies

Current Applications and Future Potential of Rare Earth Oxides in Sustainable Nuclear, Radiation, and Energy Devices: A Review

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Microstrain-assisted polymorphic phase transitions in (Eu_1−xLa _x )₂O₃

Microstrain-assisted polymorphic phase transitions in (Eu_1−xLa _x )₂O₃