Materials and manufacturing technologies for solid oxide fuel cells

Menzler, Norbert H.; Tietz, Frank; Uhlenbruck, Sven; Buchkremer, Hans Peter; Stöver, D.

doi:10.1007/s10853-010-4279-9

Cited by 274 publications

(184 citation statements)

References 154 publications

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“…Reviews by Steele [58]. Fergus highlights the stringent requirements for such seals which, during fuel cell operation, and as noted above, are subjected to high temperatures, together with aggressive environments that are both oxidizing and reducing in nature, in addition to thermal cycling stresses [48].…”

Section: Sofc Alloysmentioning

confidence: 99%

Recent developments in the preparation, characterization and applications of glass- and glass–ceramic-to-metal seals and coatings

et al. 2011

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There has, in recent years, been a major revival of interest in glass-and glass-ceramic-to-metal seals and coatings for new applications. Experience dictates that many factors need to be taken into consideration in the successful design and manufacture of high-quality seals, particularly if an adequate component lifetime is to be achieved. For example, during their preparation, undesirable reactions may occur between diffusing metal species and glass constituents, and these can lead to the formation of highly localized internal stresses, which can initiate failure of a seal either during manufacture or, more seriously, whilst in service due to the influence of static fatigue. In the case of high-temperature systems, reactions under hostile operating conditions also need to be taken into consideration. In this review, the factors learnt from past experience that influence the formation and lifetime behaviour of glass and glass-ceramic/metal systems are briefly introduced, and their relevance to the newer applications including solid oxide fuel cell sealants and coatings on titanium for biomedical applications is discussed.

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Section: Sofc Alloysmentioning

confidence: 99%

Recent developments in the preparation, characterization and applications of glass- and glass–ceramic-to-metal seals and coatings

et al. 2011

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“…In addition, they exhibit considerable ionic conductivity at elevated temperatures, due to the migration of oxygen vacancies induced by the stabilizer [27]. In any case, concerning the influence of the microstructural characteristics on the behavioral features, there are abundant evidences of the advantages of using nanostructured zirconia-based materials in applications such as solid oxide fuel cells (SOFCs) or thermal barrier coatings (TBCs) [28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Large scale synthesis of nanostructured zirconia-based compounds from freeze-dried precursors

Gómez¹,

Villanueva²,

Vie³

et al. 2013

Journal of Solid State Chemistry

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a b s t r a c tNanocrystalline zirconia powders have been obtained at the multigram scale by thermal decomposition of precursors resulting from the freeze-drying of aqueous acetic solutions. This technique has equally made possible to synthesize a variety of nanostructured yttria or scandia doped zirconia compositions. SEM images, as well as the analysis of the XRD patterns, show the nanoparticulated character of those solids obtained at low temperature, with typical particle size in the 10-15 nm range when prepared at 673 K. The presence of the monoclinic, the tetragonal or both phases depends on the temperature of the thermal treatment, the doping concentration and the nature of the dopant. In addition, Rietveld refinement of the XRD profiles of selected samples allows detecting the coexistence of the tetragonal and the cubic phases for high doping concentration and high thermal treatment temperatures. Raman experiments suggest the presence of both phases also at relatively low treatment temperatures.

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“…SOFCs cover a wide range of applications from auxiliary power units (1-10 kW) and combined heat and power plants (hundreds of kW) to stationary installations (MW range) [1]. Depending on the design, SOFCs can operate at various temperatures within the region of 500-1000°C [2,3].…”

Section: Introductionmentioning

confidence: 99%

Inkjet printing infiltration of Ni-Gd:CeO2 anodes for low temperature solid oxide fuel cells

Wang¹,

Tomov²,

Mitchell-Williams³

et al. 2017

J Appl Electrochem

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The effect of inkjet printing infiltration of Gd 0.1 Ce 0.9 O 2-x in NiO-Gd 0.1 Ce 0.9 O 2-x anodes on the performance of symmetrical and button cells was investigated. The anodes were fabricated by inkjet printing of suspension and sol inks. Symmetrical cells were produced from composite suspension inks on Gd 0.1 Ce 0.9 O 2-x electrolyte. As-prepared scaffolds were infiltrated with Gd 0.1-Ce 0.9 O 2 ink. Increasing the number of infiltration steps led to formation of ''nano-decoration'' on pre-sintered anodes. High resolution SEM analysis was employed for microstructural characterization revealing formation of fine anode sub-structure with nanoparticle size varying in the range of 50-200 nm. EIS tests were conducted on symmetrical cells in 4% hydrogen/argon gas flow. The measurements showed substantial reduction of the activation polarization as a function of the number of infiltrations. The effect was assigned to the extension of the triple phase boundary. The i-V testing of a reference (NiO-8 mol% Y 2 O 3 stabilized ZrO 2 /NiO-Gd 0.1 Ce 0.9 O 2-x /Gd 0.1 Ce 0.9-O 2-x /Gd 0.1 Ce 0.9 O 2-x -La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3-d ) cell and an identical cell with infiltrated anode revealed *2.5 times improvement in the maximum output power at 600°C which corresponded with the reduction of the polarization resistance of the symmetrical cells at the same temperature (2.8 times). This study demonstrated the potential of inkjet printing technology as an infiltration tool for cost effective commercial SOFC processing. Graphical abstract

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Materials and manufacturing technologies for solid oxide fuel cells

Cited by 274 publications

References 154 publications

Recent developments in the preparation, characterization and applications of glass- and glass–ceramic-to-metal seals and coatings

Recent developments in the preparation, characterization and applications of glass- and glass–ceramic-to-metal seals and coatings

Large scale synthesis of nanostructured zirconia-based compounds from freeze-dried precursors

Inkjet printing infiltration of Ni-Gd:CeO2 anodes for low temperature solid oxide fuel cells

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