Synthesis of nanoparticles of La0.75Sr0.25Cr0.5Mn0.5O3−δ (LSCM) perovskite by solution combustion method for solid oxide fuel cell application

Raza, Mohsin Ali; Rahman, I.Z.; Beloshapkin, Sergey

doi:10.1016/j.jallcom.2009.06.059

Cited by 37 publications

(29 citation statements)

References 12 publications

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“…SCS has been used to synthesize large number of inorganic materials, either simple oxides (α-Al 2 O 3 [3], ceria [4], γ-Fe 2 O 3 [5], magnetite [6], anatase [7], zirconia [8] and cobalt oxides [9]), or mixed oxides with different complexity (wollastonite [10], CaAl 2 O 4 [11], YAG [12], doped MgO [13], Ti 1-x M x O 2 [14], perovskites [15][16][17]). In addition, due to SCD high versatility to obtain complex structures, some research groups have investigated the synthesis of ceramic pigments by means of this method.…”

Section: Introductionmentioning

confidence: 99%

Characteristics reproducibility of (Fe, Co)(Cr, Al) 2 O 4 pigments obtained by solution combustion synthesis

Gilabert

Palacios

Sanz

et al. 2016

Ceramics International

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Synthesis reproducibility of mixed spinels Fe 1-Ψ Co Ψ Cr 2-2Ψ Al 2Ψ O 4 (0≤Ψ≤1), obtained by Solution Combustion Synthesis using urea as fuel, has been studied. Pigments with spinel structure Fd-3m have been obtained for all the compositional range analyzed. Characteristics such as crystallinity, cell parameter, crystal size and specific surface area show a noticeable dependence with Ψ, but some of them present a low reproducibility, indicating a pronounced dependency with process conditions in each batch.Colouring power of synthesized pigments is highly significant, so they can be directly integrated in ceramic glasses without introducing a second thermal treatment. However, the generated colour also suffers from a limited reproducibility. IntroductionSolution combustion synthesis (SCS) is an innovative method to synthesize ceramic pigments, which allows obtaining materials in a direct pathway, with a low particle size, using short reaction times and moderate temperatures [1].Experimental results reported on this topic show that the traditional methodology for preparation of spinels via ceramic method involves annealing at temperatures up to 1400ºC and long soaking times [2]. During this thermal treatment, solid state reactions take place and the chromophore cations are incorporated into the newly generated host lattice. However, due to the elevated temperature reached during the process, the resulting pigment presents low specific surface area and high particle size, which is reflected in a low colouring power. For this reason, in the industrial practice a milling operation of the pigment is mandatory in order to obtain a marketable product. In addition, the ink-jet technology applied to ceramic decoration requires pigments with a particle size around 500 nm, which supposes an increase in the cost of the milling stage and a change in the milling technology. As a consequence, there is a growing demand for alternative routes for synthesizing pigments that give directly particle sizes near to the interval recommended for ink-jet machines. SCS is a method suitable to overcome some important disadvantages of ceramic pigment traditional processing because it could generate pigments as low cohesive masses formed of nanograins, easier to mill up to the submicrometer interval.3 SCS method begins with a concentrated aqueous solution of precursors of the desired product (being the nitrates the most frequently used), and a suitable fuel (glycine, urea, hexamethylentetraamine, hydrazine and their derivates, etc.). The solution is heated at high rate in order to evaporate all water and, afterwards, to ignite the fuel present in the solid residue, which supplies enough energy to carry out the synthesis reaction. The reaction product is frequently obtained as a spongy mass.SCS has been used to synthesize large number of inorganic materials, either simple Most of the spinel-type ceramic industrial pigments include more than three metals in their composition to adjust the final colour. As a consequence, it was investi...

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Section: Introductionmentioning

confidence: 99%

Characteristics reproducibility of (Fe, Co)(Cr, Al) 2 O 4 pigments obtained by solution combustion synthesis

Gilabert

Palacios

Sanz

et al. 2016

Ceramics International

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“…Over the last decades, considerable attention has been directed to the Solution Combustion Synthesis (SCS) [22], because the self-propagating high-temperature method is simple in process, low in cost and saving in time and energy consumption [23,24]. Moreover, it has been noted that the structural and morphological properties of the resulting systems depend strongly on the choice of fuel and, in turn, on the combustion reaction features (flame temperature and moles of produced gases).…”

Section: Introductionmentioning

confidence: 99%

The oncoming energy vector: Hydrogen produced in Pd-composite membrane reactor via bioethanol reforming over Ni/CeO 2 catalyst

et al. 2016

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“…[13][14][15][16] However, the synthesis of single-phase LSCM composed of fine powders requires a further improvement. Co-precipitation is a promising and simple chemical method to prepare well-defined and less-agglomerated perovskite powders.…”

Section: Introductionmentioning

confidence: 99%

Phase and microstructure development of LSCM perovskite materials for SOFC anodes prepared by the carbonate-coprecipitation method

Zupan¹,

Marinšek²,

Skalar³

2016

Mater. Tehnol.

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Most SOFC development has been based on nickel yttria-stabilized zirconia anodes. Such materials have excellent catalytic properties for fuel oxidation, high electrical conductivity, good mechanical strength and an appropriate thermal expansion coefficient compatible with other cell components. Unfortunately, cermet anodes based on doped zirconia exhibit some disadvantages, e.g., the catalysing side reaction of carbon deposition during hydro-carbon fuel oxidation and a susceptibility to sulphur poisoning. Perovskite-type compounds based on lanthanum-strontium-manganese-chromium oxide (LSCM) can serve as an alternative material. Since the optimal perovskite composition is still not known, La1-xSrxMnyCr1.yO3±d (x from 0 to 0.3 and y from 0.4 to 0.6) ceramics were prepared with the co-precipitation method. Crystalline phase formation was followed by X-ray powder diffraction and Rietveld refinement. Quantitative microstructure analysis of the samples sintered at various temperatures was performed on SEM micrographs using Axiovision 4.8 software. Keywords: co-precipitation, oxide LSCM anode, phase development, microstructure Ve~ina razvoja visokotemperaturnih gorivnih celic je temeljila na anodnih materialih na osnovi niklja in cirkonijevega dioksida, stabiliziranega z itrijem. Ta ima odli~ne katalitske lastnosti pri reakciji oksidacije goriva, visoko elektri~no prevodnost, dobro mehansko trdnost in temperaturni razteznostni koeficient, skladen z ostalimi komponentami celice. @al so ti materiali med delovanjem podvr`eni ne`elenim reakcijam izlo~anja ogljika in zastrupljanja z`veplom, zato jih posku{amo nadomestiti z oksidnimi spojinami perovskitnega tipa, z lantan-stroncij-mangan-krom oksidom (LSCM). Optimalna sestava teh materialov {e ni znana, zato smo z metodo soobarjanja pripravili keramiko La1-xSrxMnyCr1.yO3± d (x od 0 do 0,3 in y od 0,4 do 0,6). Z rentgensko pra{kovno analizo in Rietveldovim prilagajanjem smo spremljali razvoj kristalnih faz. Z analizo SEM posnetkov vzorcev po sintranju pri razli~nih temperaturah smo mikrostrukture pripravljenih materialov kvantitativno ovrednotili z uporabo programa Axiovision 4.8.

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Synthesis of nanoparticles of La0.75Sr0.25Cr0.5Mn0.5O3−δ (LSCM) perovskite by solution combustion method for solid oxide fuel cell application

Cited by 37 publications

References 12 publications

Characteristics reproducibility of (Fe, Co)(Cr, Al) 2 O 4 pigments obtained by solution combustion synthesis

Characteristics reproducibility of (Fe, Co)(Cr, Al) 2 O 4 pigments obtained by solution combustion synthesis

The oncoming energy vector: Hydrogen produced in Pd-composite membrane reactor via bioethanol reforming over Ni/CeO 2 catalyst

Phase and microstructure development of LSCM perovskite materials for SOFC anodes prepared by the carbonate-coprecipitation method

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