TechConnect Proceedings Papers
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Enhanced fuel cell performance with modified Nafion® membranes
The interaction of Nafion® 212 membrane with a carbocyclic fuel, decalin was studied. Decalin treatment of N212 improved vapor sorption and membrane conductivity. In addition a substantial increase of peak power in a H2/Air fuel [...]
Molecular Hydrogen Storage in Fullerenes for Use on Board Fuel Cell Vehicles – A Density Functional Theory Study
Hydrogen gas is a potential fuel to replace gasoline on board vehicles. However, viable storage methods must be developed. Carbon nanomaterials are promising because they are cheap, lightweight and abundant but carbon-hydrogen physisorption is weak [...]
Ammonia Decomposition over Ni Supported on Multi-Wall Carbon Nanotubes: Effect of Surface Functional Groups
Zhang H., Alhamed Y., Kojima Y., Al-Zahrani A., Idriss H., Petrov L., Daous M., King Abdulaziz University, SA
Functional groups on the Multi-Wall Carbon Nanotubes (MWCNTs) surfaces play an important role in anchoring metal ions. Transition metals such as Fe, Co, Ni supported on MWCNTs with surface carboxyl groups have demonstrated an excellent [...]
Hydrogen Generation from Thermochemical Water-Splitting Using Core Shell Ni-Ferrite/Y2O3 Nanoparticles
During thermochemical water-splitting process for hydrogen generation,ferritenanoparticles undergo significant grain growth that reduces their surface area and affect the porous morphology. Consequently, hydrogen volume generation diminishes with increase in thermochemical cycles. In order to mitigate [...]
Solar Energy System Prototype with a Maximum Power Point Tracking (MPPT)
The paper shows the design and implementation of a novel power management unit that combines (mixes) several power harvesting sources and delivers (routes) the power to the working load and the battery. The system can [...]
Theoretical modelling of nanofluids for heat transfer
In this talk we will discuss two uses of nanofluids for heat transfer: for cooling purposes and for absorbing solar thermal energy. In the first case we show that a popular theoretical model, which has [...]
Synthesis of Visible light Nanocomposites for H2 Production
Visible light active nanocomposites were synthesized by the sol-gel method using non-ionic surfactant as a template. Cr-doped ZrO2-modified coupled ZnO/TiO2 composite was thoroughly characterized for surface area, crystal phase, microstructure, elemental identification and band gap [...]
Fabrication of Infrared Energy Harvester Using Electrically Small Particles
A novel structure based on electrically small resonators is proposed for harvesting the infrared energy and yielding more than 84% harvesting efficiency. The proposed harvester has been fabricated using nano-fabrication tools. Moreover, silver adhesion improvement [...]