Electrical degradation of porous and dense LSM/YSZ interface

Brant, Márcia Caldeira; Matencio, Tullio; Dessemond, Laurent; Domingues, Rosana Zacarias

doi:10.1016/j.ssi.2006.02.012

Cited by 55 publications

(34 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is liable for the significant loss of voltages in SOFC mostly due to a great deal of polarization losses connected to reduction reaction [10,37,38]. The excessively used cathode material is strontium doped lanthanum manganite (La1−xSrxMnO3 (LSM)) in high temperature SOFC [10,12,[39][40][41][42][43][44][45][46]. It is associated to a manganite family of perovkites in which lanthanum is partially replaced with strontium.…”

Section: Cathodementioning

confidence: 99%

A Brief Description of High Temperature Solid Oxide Fuel Cell’s Operation, Materials, Design, Fabrication Technologies and Performance

et al. 2016

View full text Add to dashboard Cite

Today's world needs highly efficient systems that can fulfill the growing demand for energy. One of the promising solutions is the fuel cell. Solid oxide fuel cell (SOFC) is considered by many developed countries as an alternative solution of energy in near future. A lot of efforts have been made during last decade to make it commercial by reducing its cost and increasing its durability. Different materials, designs and fabrication technologies have been developed and tested to make it more cost effective and stable. This article is focused on the advancements made in the field of high temperature SOFC. High temperature SOFC does not need any precious catalyst for its operation, unlike in other types of fuel cell. Different conventional and innovative materials have been discussed along with properties and effects on the performance of SOFC's components (electrolyte anode, cathode, interconnect and sealing materials). Advancements made in the field of cell and stack design are also explored along with hurdles coming in their fabrication and performance. This article also gives an overview of methods required for the fabrication of different components of SOFC. The flexibility of SOFC in terms fuel has also been discussed. Performance of the SOFC with varying combination of electrolyte, anode, cathode and fuel is also described in this article.

show abstract

Section: Cathodementioning

confidence: 99%

A Brief Description of High Temperature Solid Oxide Fuel Cell’s Operation, Materials, Design, Fabrication Technologies and Performance

et al. 2016

View full text Add to dashboard Cite

show abstract

“…In fact, Brant et al [19] observed the formation of SZ at the interface between YSZ and porous LSM after annealing over 1200 ℃. According to van Roosmalen and Cordfunke [20], the formation of SZ from La 0.7 Sr 0.3 MnO 3 and ZrO 2 is estimated to start at 1247 ℃.…”

Section: Phases Of the Ysz Filmsmentioning

confidence: 99%

Characterization of yttria-stabilized zirconia films deposited by dip-coating on La0.7Sr0.3MnO3 substrate: Influence of synthesis parameters

Marrero¹,

Ribeiro²,

Malfatti³

et al. 2013

J Adv Ceram

View full text Add to dashboard Cite

Yttria-stabilized zirconia (YSZ, ZrO 2 -8%Y 2 O 3 ) films were deposited onto lanthanum strontium manganite (LSM, La 0.7 Sr 0.3 MnO 3 ) substrates using dip-coating process aiming for the application in solid oxide fuel cells (SOFCs). YSZ precursor was prepared by sol-gel method; three values of the organic/inorganic concentration ratio (1, 3 and 5) were utilized and the sol viscosity was adjusted (60 mPa·s and 100 mPa·s) before deposition on the substrate. The influence of these synthesis parameters on the structure and morphology of the deposited films was examined by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The films showed characteristic peaks of LSM, YSZ (with cubic structure) and secondary phases of SrZrO 3 and La 2 O 3 . Depending on the synthesis conditions, crack-free, homogeneous and well adhered films were obtained, with thickness of 11-24 m.

show abstract

“…Its crystalline structure is influenced by temperature and oxygen partial pressure (Fergus et al, 2009;Singhal & Kendall, 2003).It is rhombohedral at room temperature while the undoped lanthanum manganites is orthorhombic (Fergus et al, 2009;Singhal & Kendall, 2003). LSM reacts with YSZ at temperatures above 1300 °C and unwanted electronic insulating phases like La 2 Zr 2 O 7 and SrZrO 3 are formed (Brant et al, 2006;Ralph et al, 2001 as cited in Wincewicz & Cooper, 2005). The amounts of these electronically insulating phases depend on the La/Sr ratio in the LSM (Sun et al, 2010).…”

Section: Wwwintechopencommentioning

confidence: 99%