SA – TechConnect Briefs

Hydrogen generation by ammonia decomposition using Co supported on Mg/La mixed oxide: Effect of calcination atmosphere of support

Podila S., Driss H., Alhamed Y.A., Al-Zahrani A., Petrov L.A., King Abdulaziz University, SA

Generation of COx free hydrogen by ammonia decomposition (AD) is more attractive from practical and economical perspectives compared to other process. Previous studies showed that Ru supported on multi wall carbon nanotubes (MWCNTs) is the [...]

Attenuation of Disturbances Using Packed Bed of Nanoparticles

Asif M., Ali S.S., Hameed B.H., King Saud University, SA

The attenuation of disturbances and shocks is quite important as well as challenging task in a variety of situations. In the present work, the attenuation of disturbance through a packed bed of ultrafine nano-powder that [...]

Manufacturing of thermally stable nanocrystalline aluminum alloys and studying their corrosion behavior in Arabian Gulf seawater

Sherif E.M., King Saud University, SA

The as-received metal powders were used to synthesis bulk nanocrystalline Al; Al-10%Cu; and Al-10%Cu-5%Ti alloys using mechanical alloying and high frequency induction heat sintering (HFIHS). The corrosion behavior of these materials in natural Arabian Gulf [...]

Utilization of Industrial Waste as a Composite Cementing Materials

Khan M.I., King Saud University, SA

The deterioration in concrete structures exposed to harsh environments has become a matter of global concern. The requirement for high durability in concrete structures cannot be easily achieved using ordinary portland cement. Therefore, new materials [...]

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 [...]

Synthesis of Novel Functionalized-Graphene/Quantum Dots Hybrid System for Solar Cells Application

Babkair S.S., Khan M.T., Azam A., kau, SA

In the recent years functionalize graphene and inorganic quantum dots have emerged as strong acceptor material for the organic solar cells. But the power conversion efficiency of the devices based on these materials is still [...]