Topic: Solar Technologies
Capturing and Using CO2 as Feedstock for Clean Chemical Processes Technologies
Chemical-looping technology for capturing CO2 are discussed with critical assessments of the circulating fluidized bed systems and the packed bed reactor with periodic switching of the feed streams of fuel and air. Beside, some industrial [...]
Pelletized silica and polyethyleneimine composites for CO2 capture via adsorption
Amine adsorbent powders are of broad interest to facilitate CO2 capture towards reducing atmospheric greenhouse gas. It is recognized, however, that industrial adsorption processes require pelletized rather than powdered adsorbents. Mesoporous silica and branched polyethyleneimine [...]
Development of the Novel Functionality of Probiotics Fermented Noni Hydrolysates
This study aimed to help the release of functional nutrients from noni fruit by enzymatic hydrolysis, and to subsequently shorten the fermentation time during the biotransformation of some compounds. This study firstly investigated the optimal [...]
Commercial pilot for closed-loop wastewater treatment and biofuel production using microalgae
In wastewater treatment, significant energy is used to dilute, discharge, or landfill valuable resources. This situation is untenable due to energy costs and global scarcity of clean water. Algae Systems has developed and patented a [...]
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 [...]