Molecular dynamics study of hydrogen adsorption in carbonace
This work attempts to shed light on molecular hydrogen adsorption in carbonaceous microporous materials by exploiting molecular dynamics simulations combined with geometry optimization calculations of the solid structures. Carbon structures were considered here because of evidence suggesting that they may be efficient media for hydrogen storage. The inclusion of oxygen functional groups in these solid structures was also examined since they could affect hydrogen adsorption. Insertion of oxygen functional groups causes a decrease in hydrogen adsorption and this effect is more evident in narrow pores. Hydrogen molecules adsorb in the pores as structured layers, depending on pore slit width. The amount of hydrogen adsorbed reached 4.41% w/w for the purely carbonaceous materials, whereas for the oxygenated materials adsorption was limited to 3.30% w/w. The estimated adsorption density inside the pores exceeded the liquid hydrogen density for both solid structures investigated.
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Chemical Engineer, PhD. Owner and senior scientist at SinodosChemistry [[login to view URL]] Affiliate/ senior lecturer of London TFE [[login to view URL]] Owner / consultant at Sinodos Business Consultants [[login to view URL]] Extensive experience and expertise in the fields of : - Polymers - Chemistry - Pollution control - Computational Tools - Energy Efficiency - Sustainability - Kinetics - Thermodynamics - Occupational Health and Safety - Physical and Chemical processes - Simulation of physical and chemical processes - CO2 capture - H2 storage - adsorption and absorption - Micro porous materials Scientific consultant expert for innovators globally. Participation in R&D projects. Scientific Researcher. Invited member of the IVIN network. Active researcher and scientific consultant since 2005.
