Materials Literature
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ABSTRACT Binary combination of three safe amine based synthesized zinc dithiocarbamates (ZDC), namely zinc (N‐benzyl piperazino) dithiocarbamate (ZBPDC), zinc (N‐ethyl piperazino) dithiocarbamate (ZEPDC), and zinc (N‐phenyl piperazino) dithiocarbamate (ZPPDC) with mercapto benzothiazole disulfide (MBTS) as an effectiv…
Microstructural evolution of a Solid Oxide Electrolyser Cell (SOEC) La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 (LSCF) anode is investigated using 3D reconstruction techniques both on a reference and a long-term tested cell. In this framework, reconstructions have been obtained from focused ion beam-scanning electron microscopy a…
Solid oxide electrolysis cell for reducing CO 2 to CO was studied by using a LaGaO 3 -based (LSGM) electrolyte at elevated temperature (i.e. 973 - 1173 K). Different kinds of oxide were tried as cathodes for CO 2 electrolysis. It was found that LaFeO 3 –based perovskite material (La 0.6 Sr 0.4 Fe 0.9 Mn 0.1 O 3 , LSFM…
Galileo 1000 N is an SOFC-based micro-CHP system for single family homes. This contribution reports on the newest achievements in the lab on efficiency, durability and cyclability of SOFC stacks and complete micro-CHP systems. It also shows results of the field tests. Achievements are total efficiencies of 95% (LHV) a…
Biomineralization is a process of mineral deposition by organisms. Calcium salts are the major component of various biominerals, calcium carbonate being the predominant type in aquatic organisms. The mechanism of biomineralization has been conventionally analyzed by microscopic observation. The findings obtained sugge…
The effect of cation composition in LaNi 1- x Fe x O 3- δ on oxygen nonstoichiometry has been investigated with iodometric titration. For LaNi 0.6 Fe 0.4 O 3- δ , temperature and oxygen partial pressure dependence of oxygen nonstoichiometry has been determined by equilibrium thermogravimetry. The P (O 2 ) and temperat…
A transmission line based model was successfully applied to study the ageing effect in LSM-YSZ cathodes after being exposed to humidified air at 900 °C for up to 3000 h. A decrease in the YSZ conductivity was correlated with the formation of the less conducting monoclinic zirconia. The amount of La 2 Zr 2 O 7 , presen…
The measurement of the mass transport and oxygen exchange in materials for SOFCs has been greatly aided by the use of ion beam analysis techniques. In particular this has focused on the use of Secondary Ion Mass Spectrometry (SIMS) to measure diffusion profiles of oxygen 18 in ceramics to determine the kinetics of the…
Lanthanum strontium manganate (LSM) micro-electrodes with the nominal composition of (La 0.75 Sr 0.25 ) 0.95 MnO 3 were deposited on yttria stabilized zirconia (YSZ). The diameter varied from 20 – 100 μm and the thickness was kept constant at ca. 0.5 μm. Electrochemical characterization was carried out in situ at temp…
Metal supported cells are considered the next generation of Solid Oxide Fuel Cells due to higher robustness and cost-efficiency. However, improvement of the low temperature performance (< 700°C), increased durability and the use of manufacturing routes compatible to the metal substrate are key parameters for succes…
This paper discusses the structure and properties of a compression seal, Thermiculite 866, that is providing excellent service with SOFC development groups around the world. That performance is ilustrated by data showing the robustness and durability of the seal achieved during extended testing by a customer in his st…
We have accumulated practically all the information available in the literature regarding empirical models used for describing high-speed normal penetration of rigid strikers into concrete shields, including recently posed models. The description of the models is unified; this includes recommendations on the range of…
Versa Power Systems (VPS) is a developer of solid oxide fuel cells (SOFCs) for clean power generation and was recently acquired by FuelCell Energy (FCE). FCE is a global leader in the design, manufacture and distribution of Molten Carbonate Fuel Cell (MCFC) power plants. From an economic perspective, MCFCs scale-up ve…
In order to develop efficient Protonic Ceramic Fuel Cell, different composite electrodes made of BaCe 0.9 Y 0.1 O 3 and NiO or mixed ionic-electronic conductor (BSCF) were investigated as anode and cathode respectively. Ni-BCY composite synthesized by combustion offers sufficient open porosity, shows an electrical con…
Fraunhofer IKTS and Plansee SE continuously develop SOFC stacks with Chromium based interconnects (CFY) and electrolyte supported cells based on Scandia doped Zirconia. This technology has a great potential for cost-effective manufacturing and rapid up-scaling due to availability of major stack components and essentia…
We fabricated single cells with an 8YSZ electrolyte, a Pt anode, a spin-coated Ce 0.8 Sm 0.2 O 1.9 (SDC) cathode buffer layer and a LaNi 0.6 Fe 0.4 O 3 (LNF) cathode infiltrated with mixed conductor of Pr 6 O 11 . The cathode performance was investigated by the ac impedance method at 800 o C. The initial interface res…
Many years of close collaboration between Topsoe Fuel Cell A/S (TOFC) and Risø (to day DTU Energy Conversion) on SOFC development have ensured an efficient transfer of SOFC basic know how to industrial technology. The SOFC development in the consortium includes material development and manufacturing of materials, cell…
Osaka Gas started joint development of the residential SOFC CHP system with Kyocera in FY2004, and Aisin Seiki Co., Ltd. and Toyota Motor Corporation also took part in out development. Development for commercialization was completed at the end of the 2011 fiscal year, and product commercialization was started. Most si…
Ceres Power has developed a unique low temperature (500-620°C), low-cost metal-supported SOFC technology based on the use of thick-film Cerium Gadolinium Oxide (CGO) as the predominant oxygen ion conductor and structural ceramic, the fundamental details of which have been published previously (1). Since that paper was…
Solid oxide fuel cell (SOFC) triple combined cycle system, integrated with gas turbine (GT) and steam turbine (ST), is an ultimate fossil fuel electric power generation system with very high efficiency. In 2008, Mitsubishi Heavy Industries, Ltd. (MHI) operated the 200 kW-class SOFC micro gas turbine (MGT) hybrid syste…