Effect of sintering conditions on structural and morphological properties of Y- and Co-doped BaZrO3 proton conductors

Hossain, Md. Forhad; Yamamoto, Takayuki; Hashizume, Kazuyoshi

doi:10.1016/j.ceramint.2021.06.138

Cited by 33 publications

(17 citation statements)

References 62 publications

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“…Recently, Hossain et al reviewed the proton-conducting BZO perovskites in terms of material science and computational engineering. These in-depth focused reviews on the physical characteristics of barium zirconate from experimental and theoretical studies will help to perform future research in this sector. − Hossain et al also experimentally studied SOFC electrolyte materials preparation in different sintering conditions , and conductivity measurements in various hydrogen-containing atmospheres − for the BaZr 0·9 Y 0·1 O 3‑α (BZY), BaZr 0·955 Y 0·03 Co 0·015 O 3‑α (BZYC), and Gd 2 O 3 sintered pellets. Last, but not least, very recent studies show that SOFC electrodes associated with multiple REOs have also shown promising characteristics, such as resistance to sulfur poisoning and stable degradation behavior at high temperatures, which are desirable in fuel cell applications. , Specific applications of REOs in SOFCs are given in Table .…”

Section: Applications and Prospects Of Rare Earth Oxidesmentioning

confidence: 99%

“…These in-depth focused reviews on the physical characteristics of barium zirconate from experimental and theoretical studies will help to perform future research in this sector. 104−106 Hossain et al also experimentally studied SOFC electrolyte materials preparation in different sintering conditions 107,108 and conductivity measurements in various hydrogen-containing atmospheres 109−113 for the BaZ-…”

Section: Applications and Prospects Of Rare Earth Oxidesmentioning

confidence: 99%

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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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101

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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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Section: Applications and Prospects Of Rare Earth Oxidesmentioning

confidence: 99%

Section: Applications and Prospects Of Rare Earth Oxidesmentioning

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.

Self Cite

101

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“…The powder was molded into a disk shape with a mold of 10 mm, subjected to hydrostatic pressing at 200 MPa, and then sintered at 1600°C for 5 h in air atmosphere. 29,40,41,42,43,44 The sintered sample was subjected to density measurement by Archimedes method 45 to obtain 98% or more to the theoretical density of 6.2 g/cm 3 . The sample size after surface polishing was approximately 7 mm in diameter and 2 mm in thickness.…”

Section: Sample Preparation and Density Measurementmentioning

confidence: 99%

Hydrogen isotope dissolution and release behavior in Y‐doped BaCeO₃

2021

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Oxides having a perovskite structure are known to exhibit good proton conductivity in a high-temperature region, which makes them potential candidates in the tritium recovery and purification system of the electrochemical devices of fusion reactors such as hydrogen pumps, hydrogen sensors, and tritium monitoring systems. But the dissolution of hydrogen into the proton conductor and its release behavior is not well known yet. In this study, the dissolution and release behavior of hydrogen was investigated in BaCe 0.9 Y 0.1 O 3−α proton conductor by exposing deuterium gas (D 2 ) and heavy water vapor (D 2 O) at 600 or 700°C for 5 h. The dissolved deuterium amount in the sample was measured using a temperature-programmed desorption analysis (TDS) method. The relationship between the amount of deuterium dissolved in the sample with the exposure pressure was also investigated. At room temperature (RT), the diffusivity of hydrogen (e.g., deuterium) was calculated from the change of the amount of residual hydrogen in the exposed sample due to the change of storage time. The Tritium Migration Analysis Program, Version 4 (TMAP4) simulation code was used to simulate and compare the experimental value of the obtained diffusivity. Although diffusivity at RT has not been reported in the past, the diffusivity is close to the extrapolation value of the literature data. From the comparison of this research results with literature, it may consider that the dominant diffusion mechanism does not change regardless of the temperature range.

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“…The doped perovskite oxides show obvious higher protonic conductivity compared with those of un-doped in hydrogen or water vapor containing atmosphere. Until now, a lot of trivalent cations including Y, Pr, Tb, Yb, and Sm have been used to substitute the cation of Ce or Zr in BaCe(Zr)O 3 membranes [ 24 , 25 , 26 ]. The chemical stability, hydrogen permeation flux, and electrical conductivity of the doped membranes also have been thoroughly investigated.…”

Section: Introductionmentioning

confidence: 99%

Dual-Phase Mixed Protonic-Electronic Conducting Hydrogen Separation Membranes: A Review

Cheng

2022

Membranes

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Owing to the excellent properties of high selectivity, high thermal stability, and low cost, in the past twenty years, mixed protonic-electronic conducting hydrogen separation membranes have received extensive attention. In particular, dual-phase mixed protonic-electronic conducting membranes with high ambipolar conductivity are more attractive because of the high hydrogen permeability. This paper aimed to present a review of research activities on the dual-phase membranes, in which the components, the characteristics, and the performances of different dual-phase membranes are introduced. The key issues that affect the membrane performance such as the elimination of the inter-phase reaction, the combination mode of the phases, the phase ratio, and the membrane configuration were discussed. The current problems and future trends were simply recommended.

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Effect of sintering conditions on structural and morphological properties of Y- and Co-doped BaZrO3 proton conductors

Cited by 33 publications

References 62 publications

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

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

Hydrogen isotope dissolution and release behavior in Y‐doped BaCeO₃

Dual-Phase Mixed Protonic-Electronic Conducting Hydrogen Separation Membranes: A Review

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Effect of sintering conditions on structural and morphological properties of Y- and Co-doped BaZrO3 proton conductors

Cited by 33 publications

References 62 publications

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

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

Hydrogen isotope dissolution and release behavior in Y‐doped BaCeO3

Dual-Phase Mixed Protonic-Electronic Conducting Hydrogen Separation Membranes: A Review

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Product

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Hydrogen isotope dissolution and release behavior in Y‐doped BaCeO₃