Fuel cells & Hydrogen – Page 7

Development of Efficient, Compact and Environmentally Friendly Hydrocarbon Reformer for the Production of Pure Hydrogen

Ciocci R., Abu-Mahfouz I., Elnashaie S., Penn State University at Harrisburg, US

Hydrogen represents one of the most promising clean fuels for the future. Reforming of hydrocarbons (e.g. natural gas, gasoline, diesel, etc.) represents the most promising route for the production of hydrogen because it yields hydrogen [...]

Bifurcation Behavior of a Novel Auto-thermal Circulating Fluidized Bed (CFB) Membrane Reformer

Abu-Mahfouz I., Elnashaie S., Ciocci R., Penn State University at Harrisburg, US

Static Bifurcation (SB), which mostly exhibits itself as multiple steady states, is characteristic of a novel auto-thermal Circulating Fluidized Bed Membrane Steam Reformer (CFB_MSR) for hydrocarbons. The present paper focuses on the practical implications of [...]

Nanomaterials for Desulfurization & Hydrogen Generation

Venugopal G., Vylkov N., Unfried K., Sapp M., Hunt A., nGimat Co., US

Energy R&D is being driven by concerns about global warming and air pollution largely attributed to pollutants from the burning of fossil fuels. While long-term energy strategies may call for the complete replacement of petroleum-based [...]

Novel Composite Membranes Containing Functionalised Silsesquioxanes and Ionic Liquids for High Temperature Fuel Cell Applications

Dutta N., Roy Choudhury N., Subianto S., Mistry M., Ian Wark Research Institute, AU

Today most of our energy supply comes from non-renewable energy resources such as fossil fuels, but there is an increasing drive towards the use of more environmentally friendly, renewable energy source. Of these alternative energies, [...]

Directed self-organization and Molecular wiring of catalytic nanoparticles for fuel cells

Dutta N.K., Mayavan S., Roy Choudhury N., University of South Australia, AU

The usefulness of nanosized metallic particles in new generation devices and materials has prompted researchers to synthesize particles on various novel supports. The tunability in size and distribution of nanoparticles via bottom up tools opens [...]

Modeling the Temperature Field in Reforming Anodes of a Button-Shaped SOFC

Zinovik I., Poulikakos D., ETH Swiss Federal Institute of Technology, CH

A new model for the determination of the temperature field in porous reforming anodes of SOFCs is presented. The model is implemented in a commercial CFD software package. Heat transfer, fluid flow and electrochemical reactions [...]

Effects of Spin Coating Catalysts on Micro-Fuel Cells Efficiency

Lung T., Reissman T., Kirby B., Garcia E., Cornell University, US

Using spin coating as the catalyst application technique in order to receive an even distribution on the porous silicon PEM. With even distribution, resistivity is more consistent, which produces a better power output from the [...]

Continuous Hydrothermal Flow Syntheses of Nanosize Materials Used In Solid Oxide Fuel Cells

Weng X., Darr J.A., University College London, UK

Our research group has developed a novel nanomaterials synthesis method using a continuous hydrothermal flow synthesis (CHFS) reactor. In this reactor, nanosize particles are produced through co-precipitation in supercritical water. Sub 50 nm sized particles [...]

In-plane and through-plane electrochemical conductivity and fuel cell performance of thin-film YSZ electrolytes

Johnson A.C., Ramanathan S., Harvard University, US

Submicron electrolyte films are a key component of intermediate temperature solid oxide fuel cells. Several groups have reported size-dependent in-plane ionic conductivity in thin films of yttria-stabilized zirconia (YSZ) and gadolinia-doped ceria. Here we report [...]

Topic: Fuel cells & Hydrogen