Chemically stable proton conducting doped BaCeO3 by citrate-EDTA complexing sol-gel process for solid oxide fuel cell

Sailaja, Jampana Madhuri; Murali, N.; Margarette, S.J.; Jyothi, N. Krishna; Rajkumar, K.; Veeraiah, V.

doi:10.1016/j.sajce.2018.08.002

Cited by 11 publications

(7 citation statements)

References 31 publications

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“…For example, in recent studies, it was shown that such materials can be layered praseodymium or neodymium nickelates codoped with barium [56,57]. In addition, it is of interest to modify the film composition itself by introducing a small amount of zirconium which would increase the stability of the film in atmospheres containing hydrocarbons and water vapor [58,59] and to introduce an excess of Ba in the initial composition [33] or partlly substitute Ba with other alkaline earth metals to reduce its evaporation [32].…”

Section: Resultsmentioning

confidence: 99%

“…The probable reason for this is the more intense evaporation of barium from the film compared to that of the compacts due to the more developed surface. In the literature, the problem of Ba evaporation is considered for both volume samples and films [28,29,30,31,32,33,34]. It becomes more pronounced at increased sintering temperatures and for films with a thickness of less than 10 microns.…”

Section: Introductionmentioning

confidence: 99%

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Comparative Study of Electrophoretic Deposition of Doped BaCeO3-Based Films on La2NiO4+δ and La1.7Ba0.3NiO4+δ Cathode Substrates

et al. 2019

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This paper presents the results of a comparative study of methods to prevent the loss of barium during the formation of thin-film proton-conducting electrolyte BaCe0.89Gd0.1Cu0.01O3−δ (BCGCuO) on La2NiO4+δ-based (LNO) cathode substrates by electrophoretic deposition (EPD). Three different methods of the BCGCuO film coating were considered: the formation of the BCGCuO electrolyte film without (1) and with a protective BaCeO3 (BCO) film (2) on the LNO electrode substrate and the formation of the BCGCuO electrolyte film on a modified La1.7Ba0.3NiO4+δ (LBNO) cathode substrate (3). After the cyclic EPD in six stages, the resulting BCGCuO film (6 μm) (1) on the LNO substrate was completely dense, but the scanning electron microscope (SEM) analysis revealed the absence of barium in the film caused by its intensive diffusion into the substrate and evaporation during the sintering. The BCO layer prevented the barium loss in the BCGCuO film (2); however, the protective film possessed a porous island structure, which resulted in the deterioration of the film’s conductivity. The use of the modified LBNO cathode also effectively prevented the loss of barium in the BCGCuO film (3). A BCGCuO film whose conductivity behavior most closely resembled that of the compacts was obtained by using this method which has strong potential for practical applications in solid oxide fuel cell (SOFC) technology.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative Study of Electrophoretic Deposition of Doped BaCeO3-Based Films on La2NiO4+δ and La1.7Ba0.3NiO4+δ Cathode Substrates

et al. 2019

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“…19 NTO was synthesized using previously reported literature 20 , AP was acquired from national chemicals.2.2 Synthesis of BZC and BZC/r GOBZC was synthesized using the previously reported sol-gel citrate-disodium ethylenediaminetetraacetate (EDTA) method. 21 Nitrate salts of metals Ba 2+ , Cu 2+ , and Zn 2+ were mixed in the 2:1:1 ratio followed by the addition of citric acid and EDTA in 2:1 mole ratio than of total metal content. The mixture was heated between 90-100 o C to form a gel.…”

Section: Methodsmentioning

confidence: 99%

Influence of BaZnCuO3 and BaZnCuO3/rGO on the thermal decomposition of AP and NTO

Dave

Sirach

2022

Preprint

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BaZnCuO3 (BZC) was synthesized using the sol-gel method. The BZC was incorporated in reduced graphene oxide (rGO) to produce BZC/rGO composite. The synthesized catalysts were characterized using Raman, powder X-ray diffraction (XRD), and Ultraviolet-visible (UV-Vis) analysis. The comparative effect of BZC and BZC:rGO composite was studied on the thermal decomposition of and 3-nitro-3H-1,2,4-triazol-5-one (NTO) and Ammonium Perchlorate (AP) using simultaneous Thermo-gravimetric technique (TG-DTA). BZC was a better catalyst for decreasing the thermal decomposition temperature and the thermo-kinetic parameters of both AP and NTO compared to BZC/rGO composite. BZC can reduce the thermal decomposition of AP and NTO by 121 oC, and 46 oC, respectively. The findings support BZC as a possible catalyst in the thermolysis of both NTO and AP.

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“…This approach gained attention in SOFC applications in the past few years. 110 In addition to gasses or ceramics, this method is widely used in synthesizing organics and biomaterials. 15 The word "sol-gel" came from the process or transition from liquid to solid (di-or multi-phasic gel).…”

Section: Sol-gel Methodsmentioning

confidence: 99%

“…Sol‐gel method is popular in ceramic synthesis. This approach gained attention in SOFC applications in the past few years 110 . In addition to gasses or ceramics, this method is widely used in synthesizing organics and biomaterials 15 .…”

Section: Wet Chemical Methodsmentioning

confidence: 99%

A review on the preparation of anode materials and anode films for solid oxide fuel cell applications

Hadi

Somalu

Osman

et al. 2021

Intl J of Energy Research

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The primary components of SOFCs are the anode, cathode, and the electrolyte. Anode is critical in achieving the effective electrochemical oxidation of fuel; thus, its performance can be improved using homogenous powder synthesized through an appropriate method. Various synthesis methods, including solidstate reaction and wet chemical methods have been used to synthesize anode materials. However, each technique has several advantages and disadvantages.Given that anode is a porous electrode, few criteria, such as high conductivity, tolerance towards carbon deposition, chemical stability, and thermal stability, must be fulfilled. Researchers also modified the existing synthesis method to improve the performance of the anode. In addition, various anode fabrication techniques including physical and colloidal deposition techniques are briefly discussed to understand their effect on the performance of the deposited layers.The aim of this review is to discuss the various anode synthesis and deposition techniques and their influence on the properties and performance of SOFCs.

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Chemically stable proton conducting doped BaCeO3 by citrate-EDTA complexing sol-gel process for solid oxide fuel cell

Cited by 11 publications

References 31 publications

Comparative Study of Electrophoretic Deposition of Doped BaCeO3-Based Films on La2NiO4+δ and La1.7Ba0.3NiO4+δ Cathode Substrates

Comparative Study of Electrophoretic Deposition of Doped BaCeO3-Based Films on La2NiO4+δ and La1.7Ba0.3NiO4+δ Cathode Substrates

Influence of BaZnCuO3 and BaZnCuO3/rGO on the thermal decomposition of AP and NTO

A review on the preparation of anode materials and anode films for solid oxide fuel cell applications

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