High ionic conductivity dysprosium and tantalum Co-doped bismuth oxide electrolyte for low-temperature SOFCs

Cardenas-Terrazas, Paola; Ayala-Ayala, M. T.; Muñoz-Saldaña, J.; Fuentes, Antonio F.; Leal-Chávez, Daniel; Ledezma-Sillas, J.E.; Carreño-Gallardo, C.; Ramirez, José Martin Herrera

doi:10.1007/s11581-020-03572-y

Cited by 26 publications

(7 citation statements)

References 30 publications

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“…La and Nd are rare earth metals whereas Bi is a post-transition metal. Furthermore, as per our understanding, the bismuth oxide (Bi 2 O 3 ) showed the highest ionic conductivity at comparable temperatures [14]. The ionic conductivity of stabilized Bi 2 O 3 makes this material ideal as an electrolyte in SOFCs that function at lower temperatures < 1000 [15].…”

Section: Introductionmentioning

confidence: 84%

The La+3-, Nd+3-, Bi+3-Doped Ceria as Mixed Conductor Materials for Conventional and Single-Component Solid Oxide Fuel Cells

et al. 2023

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Clean energy devices are essential in today’s environment to combat climate change and work towards sustainable development. In this paper, the potential materials A2Ce2O7−δ (A = La+3, Nd+3, Bi+3) were analyzed for clean energy devices, specifically for conventional and single-component solid oxide fuel cells (SC-SOFCs). The wet chemical route has been followed for the preparation of samples. X-ray diffraction patterns showed that all three samples exhibited a defected fluorite cubic structure. It also revealed the presence of dopants in the ceria, which was confirmed by the fingerprint region of FTIR. The optical behavior, fuel cell performance and electrochemical behavior were studied by UV–vis, fuel cell testing apparatus and EIS, respectively. The SEM results showed that all samples had irregular polygons. In Raman spectra, the F2g mode corresponding to the space group (Fm3m) confirms the fluorite structure. The Raman spectra showed that A2Ce2O7−δ (A = La+3, Nd+3, Bi+3) have different trends. The conventional fuel cell performance showed that the maximum power density of Bi2Ce2O7 was 0.65 Wcm−2 at 600 °C. The performance of A2Ce2O7−δ (A = La3+, Nd3+, Bi3+) as a single-component fuel cell revealed that Nd2Ce2O7−δ is the best choice with semiconductors conductors ZnO and NCAL. The highest power density (Pmax) of the Nd2Ce2O7/ZnO was 0.58 Wcm−2, while the maximum power output (Pmax) of the Nd2Ce2O7/NCAL was 0.348 Wcm−2 at 650 °C. All the samples showed good agreement with the ZnO as compared to NCAL for SC-SOFCs.

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Section: Introductionmentioning

confidence: 84%

The La+3-, Nd+3-, Bi+3-Doped Ceria as Mixed Conductor Materials for Conventional and Single-Component Solid Oxide Fuel Cells

et al. 2023

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“…Wachsman et al 41,42 reported that 15D5WSB has an ionic conductivity of 0.016 S cm À1 at 500 1C (compared to 0.037 S cm À1 of D15Z5SB, as reported in this study). Wachsman et al 45 also reported that the (Dy 2 O 3 ) 0 . 13 (Ta 2 O 5 ) 0.02 -(Bi 2 O 3 ) 0.85 system has an ionic conductivity of 0.08 S cm À1 at 500 1C; however, they did not report its stability.…”

Section: Materials Advances Papermentioning

confidence: 94%

“…Meng et al 36 reported that a smaller amount of double-dope oxides can remain in the cubic phase at room temperature compared with that of a single dope oxide. Therefore, the effects of co-dopants such as Y–Ln (Ln = Ce, 37 Er, 38 Gd, 39 Nb, 39 Sc 39 and Zr 39 ), Dy–Ln (Ln = W, 40–42 Gd, 43 Ce, 43 Ho 44 and Ta 45 ), Er–Ln (Ln = W, 46 N 5 47 and Co 48 ), Eu 2 O 3 –Tb 4 O 7 , 49 La 2 O 3 –MoO 3 , 50 Gd 2 O 3 –Lu 2 O 3 , 51 Tb 4 O 7 –Gd 2 O 3 , 52 and Pr 2 O 3 –MoO 3 53 have been extensively studied recently. The co-doping of two metal oxides increases the entropies of quaternary systems, facilitating stabilization of δ-Bi 2 O 3 down to room temperature with lower dopant concentrations.…”

Section: Introductionmentioning

confidence: 99%

Stabilities and performance of single cubic phase dysprosium and zirconium co-doped bismuth oxide electrolytes for low temperature solid oxide fuel cells

et al. 2023

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“…The highest conductivity of 6.6 × 10 −2 S•cm −1 at 500 • C was observed for the sample containing 10 mol.% Dy and 5 mol.% W (10T5WSB). Dysprosium and tantalum dual-doped Bi 2 O 3 electrolytes were also investigated by Cardenas-Terrazas et al [227]. According to the results, the highest ionic conductivity belonged to the electrolyte comprising 13 mol.% Dy and 2 mol.% Ta (0.08 S•cm −1 at 500 • C).…”

Section: Bismuth-based Electrolytesmentioning

confidence: 99%

Progress in Material Development for Low-Temperature Solid Oxide Fuel Cells: A Review

Vostakola

Horri

2021

Energies

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Solid oxide fuel cells (SOFCs) have been considered as promising candidates to tackle the need for sustainable and efficient energy conversion devices. However, the current operating temperature of SOFCs poses critical challenges relating to the costs of fabrication and materials selection. To overcome these issues, many attempts have been made by the SOFC research and manufacturing communities for lowering the operating temperature to intermediate ranges (600–800 °C) and even lower temperatures (below 600 °C). Despite the interesting success and technical advantages obtained with the low-temperature SOFC, on the other hand, the cell operation at low temperature could noticeably increase the electrolyte ohmic loss and the polarization losses of the electrode that cause a decrease in the overall cell performance and energy conversion efficiency. In addition, the electrolyte ionic conductivity exponentially decreases with a decrease in operating temperature based on the Arrhenius conduction equation for semiconductors. To address these challenges, a variety of materials and fabrication methods have been developed in the past few years which are the subject of this critical review. Therefore, this paper focuses on the recent advances in the development of new low-temperature SOFCs materials, especially low-temperature electrolytes and electrodes with improved electrochemical properties, as well as summarizing the matching current collectors and sealants for the low-temperature region. Different strategies for improving the cell efficiency, the impact of operating variables on the performance of SOFCs, and the available choice of stack designs, as well as the costing factors, operational limits, and performance prospects, have been briefly summarized in this work.

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High ionic conductivity dysprosium and tantalum Co-doped bismuth oxide electrolyte for low-temperature SOFCs

Cited by 26 publications

References 30 publications

The La+3-, Nd+3-, Bi+3-Doped Ceria as Mixed Conductor Materials for Conventional and Single-Component Solid Oxide Fuel Cells

The La+3-, Nd+3-, Bi+3-Doped Ceria as Mixed Conductor Materials for Conventional and Single-Component Solid Oxide Fuel Cells

Stabilities and performance of single cubic phase dysprosium and zirconium co-doped bismuth oxide electrolytes for low temperature solid oxide fuel cells

Progress in Material Development for Low-Temperature Solid Oxide Fuel Cells: A Review

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