Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The conversion of fuel into hydrogen-rich gas is necessary for fuel cells. This can be achieved either indirectly in fuel processing systems, in which the hydrocarbon feed is converted in an external catalytic steam reformer, or directly in the fuel cell. In this paper, the unit module of solid oxide fuel cell was ass…
A high-pressure dual-chamber SOFC testing facility is established to measure AC impedance spectra of a planar anode-supported single-cell stack using flow distributors, with emphasis on the effect of pressurization to the anodic concentration polarization. Measurements show that the high frequency arcs of impedance sp…
Surface pretreatments by 1, 2-Bis(triethoxysilyl) ethane (BTSE), 1.2-bis [triethoxysilylpropyl]amine (BTSPA), and 1.2-bis [triethoxysilyl]tetrasulfide (BTSPS) were evaluated from the viewpoint of improving corrosion resistance of a thin cobalt film. These silane-coupling layers are formed on cobalt oxide by immersion…
The reduced operating temperatures of SOFCs makes the possible of using metallic alloys as interconnect. Stainless steel 441 is one of the common studied materials for the interconnect component. The oxidation behavior of a stainless steel 441 in various oxygen pressure atmospheres in the initial 2 hours was investiga…
The CNR-ITAE has a long and proven experience in SOFCs having contributed to the penetration of this technology into Europe since the early 1980's. In this communication will be reported the CNR-ITAE experience in the electrochemical screening of SOFC components under practical operating conditions, electrochemical pr…
Electrodes under active dissolution conditions are known to systematically exhibit an inductive behavior in the low-frequency range. The variation of the steady-state specific surface area as a function of potential is explored as the origin of this inductive behavior, using numerical simulations. The results confirm…
LiFeO2 was investigated as an alternative anode material for the intermediate temperature solid oxide fuel cell. At 650°C in Argon with 5% H2, LFO exhibited good electronic conductivity of 5.1 Scm-1. Fuel cell testing of composite anode of 40 wt% LFO and 60 wt% GDC and cathode with 40 wt% La0.6Sr0.4CoO3 and 60 wt% GDC…
Performances of solid oxide fuel cell is described and established in the literature as a function of the cell design and microstructural properties along with material composition. However, industrial platform to produce the different powders leads to different characteristics of these powders which can lead to diffe…
In-situ alloying of polypropylene (PP)/polystyrene (PS) binary polymer blends using anhydrous aluminum chloride as a catalyst was investigated by small angle light scattering. The phase structures, morphology, and compatibilization effect in the obtained alloys during the in-situ alloying process were investigated by…
Co-doped samples of (La0.9Sr0.1-xBix)0.98Ga0.8Mg0.2O3 - δ(LSBGM, x=0.00, 0.02, 0.05, 0.08 and 0.1) were synthesized using glycine-nitrate process (GNP) and properties were characterized to explore their use as a solid electrolyte for intermediate temperature solid oxide fuel cells (IT-SOFCs). The effects of Bi3+ dopin…
Lowering the SOFC operating temperature is a major challenge. Using conventional electrolyte materials, a solution consists in preparing thin layers to limit the ohmic losses. The coatings are synthesized by sputtering a metallic Zr-16 at%Y target in the presence of a reactive argon-oxygen discharge. The deposition st…
We report the fabrication, characterisation and use of graphene for the fabrication of Graphene Ring Microelectrodes (GRiMEs). Graphene was fabricated using a modified Hummers method and optimised hydrazine-thermal reduction procedure. So-formed graphene was characterised using measurement of light transmittance, shee…
Relationship between microstructure and performance of Sr-doped LaMnO3 (LSM)/Sc2O3-stabilized ZrO2 (ScSZ) composite cathodes was investigated using equivalent circuit models (ECMs) analysis. The cathodes were prepared by impregnating prefabricated porous ScSZ layers with a LSM/ScSZ powder slurry. This method enabled c…
Non-stoichiometric variation of oxygen content in La0.8Sr0.2Sc0.2Mn0.8O3±δ were determined by means of coulometric titration as a function of oxygen partial pressure p(O2) and temperature. La0.8Sr0.2Sc0.2Mn0.8O3±δ oxides shows oxygen excess and oxygen deficient composition depending on p(O2). Random defect model was c…
Ba0.5La0.5CoO3 (BLC) and Pr1.9(Ni,Cu,Ga)O4 (PNCG) composite cathode were investigated to enhance electrochemical performance in solid oxide fuel cells using Sr- and Mg-doped lanthanum gallate (LSGM) electrolyte films at intermediate temperatures (773–973 K). Effect of the calcination temperature of the composite catho…
This paper deals with the evaluation of different detection strategies used in power electronic devices as a critical element for an effective mitigation of voltage disturbances. The effectiveness of those detection schemes in the mitigation of disturbances such as voltage sags by a Solid-State Transfer Switch is eval…
Electrochemical Impedance Spectroscopy (EIS) is an experimental technique largely used in electrochemistry and corrosion studies. However, almost all published papers have just measured the EIS at the corrosion potential, especially for corrosion purposes. This fact limits the capability of the technique. In this pape…
Minor components in a porous electrode of solid oxide fuel cells (SOFCs) can affect the electrode performance. In this study, we focus on minor components derived from raw materials and production processes. Standard polycrystalline dense cathode samples of La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) were prepared using high puri…
Stress in yttria stabilized zirconia (YSZ) thin films was controlled by using various substrates, which had different thermal expansion coefficient (TEC), and electrical properties of the films were measured to study the relationship between the stress filed and electrical properties. Thin films of YSZ were deposited…
Solid oxide fuel cells (SOFCs) are promising as energy producing devices, which at this stage of development will require extensive analysis and benefit from numerical modeling. A 3D model is developed based on the FEM for a single cell planar SOFC design optimization. Ion, electron, heat, gas-phase species and moment…