Modeling and experimental validation of solid oxide fuel cell materials and stacks

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Large scale power production benefits from the high efficiency of gas-steam combined cycles. In the lower power range, fuel cells are a good candidate to combine with gas turbines. Such systems can achieve efficiencies exceeding 60%. High temperature Solid ...

The subject of this work is the study of the electrochemical promotion of catalysis (EPOC), also called non-Faradaic electrochemical modification of catalytic activity (NEMCA). In this phenomenon, application of small currents or potentials on catalysts in ...

This study addresses the development of a compact reactor for oxidative steam-reforming of methanol (OSRM) to produce hydrogen in autothermal mode for fuel cells. The string reactor uses catalytically active brass wires with a diameter of 500 mu m placed i ...

Electrical output behaviour obtained on solid oxide fuel cell stacks, based on planar anode supported cells (50 or 100 cm2 active area) and metallic interconnects, is reported. Stacks (1–12 cells) have been operated with cathode air and anode hydrogen flow ...

Maintaining a fuel cell system in correct operating conditions when subjected to fast load changes requires good system control. Best results are typically achieved using model based control strategies. This paper elaborates a control oriented PEM fuel cel ...

If fuel cell technology – with its inherent benefits of high efficiency and low emissions – is to be used in decentralised power sources, in mobile or transportation applications, the systems have to be able to adapt to fast load changes and varying operat ...

When running a fuel cell system in load following mode, several operating points (i.e. a combination of gas flow rates, pressures, humidities, temperatures and current density) can provide the required net power. Typically, only one of those operating poin ...

Reliability of SOFC stacks is a complex and key issue. This paper presents a simulation study including some degradation processes, namely, interconnect degradation and the anode reoxidation potential. Quantification for these phenomena has been included i ...

A new model for predicting the thermal and electrical performance of solid-oxide fuel cell(SOFC) cogeneration devices for residential buildings has been developed and demonstrated. This is a system-level model that considers the thermodynamic performance o ...

The search of new energy sources has motivated during the last few years numerous research projects due to environmental, economical and political reasons. One of the main subjects of these works is the development of fuel cells. Within this framework the ...

Decentralized energy systems are thought to have great potential for supplying electricity, cooling, and heating to buildings. A decentralized system combining a solid oxide fuel cell (SOFC) with an absorption chiller- heater (ACH) is proposed. The CO2-emi ...

Using petrol as a main source of energy, during the 20th century, has caused considerable amounts of damage among which are atmospheric pollution and global warming. At the same time, many geologists and economists expect that the discovery rate of new pet ...

Super Paramagnetic Iron Oxide Nanoparticles (SPIONs) com-bined with magnetic resonance imaging (MRI) are under clinical evaluation to enhance detection of neurodegenerative diseases. A major improvement would be to link therapeutic drugs to the SPIONs to a ...

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This dissertation reports on the development of devices and concepts for electrical and microfluidic cell manipulation. In the present context, the term cell manipulation stands for both cell handling and cell modification. The combination of microfluidic ...

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Dye-sensitized solar cells (DSC), introduced by O'Regan and Grätzel in 1991, are a low cost alternative to conventional silicon photovoltaic cells, the latter requiring extremely pure starting materials and sophisticated production procedures. DSC's, based ...

Electro-oxidn. of platinum film electrode deposited on yttria-stabilized zirconia (YSZ) is examd. in situ using potential programmed voltammetry at 450 DegC in oxygen contg. atm. Under prolonged anodic oxidn. different sorts of oxidized species are formed ...

Notch pathway is crucial for stem/progenitor cell maintenance, growth and differentiation in a variety of tissues. Using a transgenic cell ablation approach, we found in our previous study that cells expressing Notch1 are crucial for prostate early develop ...

Reactive Oxygen Species (ROS) is a family of oxygen-based active molecules, which are deeply involved in numerous crucial processes of cellular metabolism, where the redox equilibrium is very important. An imbalance between ROS and the cell ability to neut ...

Modeling and experimental validation of solid oxide fuel cell materials and stacks

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Thermo-economic Optimization of a Solid Oxide Fuel Cell, Gas Turbine Hybrid System

Electrochemical promotion of Pt catalysts for gas phase reactions

Compact string reactor for authotermal hydrogen production

Dynamic behaviour of SOFC short stacks

A fully analytical PEM fuel cell system model for control applications

An analytical, control-oriented state space model for a PEM fuel cell system

PEMFC system efficiency optimisation through model based control strategies

Simulation of SOFC stack and repeat elements including interconnect degradation and anode reoxidation risk

A Model for Simulating the Thermal and Electrical Production of Small-Scale Solid-Oxide Fuel Cell Cogeneration Systems within Building Simulation Programs

Investigation of platinum-based nanoparticles on boron-doped diamond substrate for applications in electrocatalysis

CO2-emissions reduction potential and costs of a decentralized energy system for providing electricity, cooling and heating in an office-building in Tokyo

Préparation et caractérisation de nanoparticules bimétalliques (Pt-Au) sur un substrat en diamant dopé au bore : application à l'électrocatalyse

Interaction of Functionalized Superparamagnetic Iron Oxide Nanoparticles with Brain Structures

Dynamics of actin and myosin II during cell polarization and directional locomotion

Electrical cell manipulation in microfluidic systems

Mécanismes d'action du TiO2 illuminé sur Escherichia Coli

Solid hybrid dye-sensitized solar cells : new organic materials, charge recombination and stability

Electrochemical investigation of platinum electrode in solid electrolyte cell

Notch signaling is required for normal prostatic epithelial cell proliferation and differentiation

Oxidative stress on biomaterials : from molecules to cells