Sintering and electrochemical performance of Nd2Ce2O7 electrolyte with Bi7WO13.5 sintering aid for proton conductor solid oxide fuel cells

Jiang, Yang; Song, Xingbao; Zhong, Zhibing; Lian, Zhixiang; Peng, Kaiping

doi:10.1016/j.jallcom.2020.155539

Cited by 6 publications

(2 citation statements)

References 57 publications

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“…In this regard, attempts are being made to create similar materials containing no alkaline earth metals. Among them are promising systems based on complex oxides of lanthanum with titanium, zirconium, tin, cerium, or niobium [249][250][251][252], as well as lanthanum oxides with trivalent elements LaXO 3 with a perovskite structure [253][254][255]. However, the practical application of these materials is currently constrained by the relatively high ohmic losses of FCs based on them [256][257][258].…”

Section: Membranes In Fuel Cellsmentioning

confidence: 99%

Membrane Technologies for Decarbonization

Alent’ev

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Воротынцев

et al. 2021

Membr. Membr. Technol.

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The deteriorating environmental situation has stimulated the world community to develop research related to the decarbonization of the economy and hydrogen energy. These two areas are essentially focused on membrane technologies, which play a crucial role in solving key tasks for these areas. This review is devoted to this research. The first part describes various membrane technologies aimed at capturing CO 2 from the most common gas mixtures, primarily containing nitrogen, methane, and hydrogen. In recent years, studies related to the amine purification of CO 2 , including membrane technologies, and the use of porous membranes filled with ionic liquids has also been intensively developed. Electromembrane technologies are also being developed that allow not only capture of CO 2 but also to process it into fuel or valuable chemicals. The course taken by several developed countries, including Russia, for the development of hydrogen energy includes the production, purification of hydrogen, and its conversion into energy. It should be noted that membrane technologies are fundamentally important for the development of each of these areas. Thus, the evolution of hydrogen is possible with the use of polymer membranes, and for deep purification and production of high-purity hydrogen by membrane catalysis; membranes based on palladium alloys are used. Finally, fuel cells are developed to produce energy from hydrogen, the most important part of which are proton or oxygen-conducting membranes.

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Section: Membranes In Fuel Cellsmentioning

confidence: 99%

Membrane Technologies for Decarbonization

Alent’ev

Волков

Воротынцев

et al. 2021

Membr. Membr. Technol.

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“…The structure A 2 B 2 O 7−δ was selected as A 2 B 2 O 7 -defected fluorites, like La 2 Zr 2 O 7 and La 2 Ce 2 O 7 , showed good proton conduction [11]. Proton conduction has also been demonstrated by Nd 2 Ce 2 O 7 and Gd 2 Ce 2 O 7 [12]; however, Nd 2 Ce 2 O 7 materials have a comparatively reduced sintering activity at densification temperatures up to 1500 • C [13]. If a dense electrolyte film could be produced at a lower temperature, it would reduce the cost and open possibilities for electrode-supported processes.…”

Section: Introductionmentioning

confidence: 99%

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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