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Study Findings from Sharif University of Technology Broaden Understanding of Clinical Trials and Studies (A comparative study on hydrogen interaction...

July 21, 2014



Study Findings from Sharif University of Technology Broaden Understanding of Clinical Trials and Studies (A comparative study on hydrogen interaction with defective graphene structures doped by transition metals)

By a News Reporter-Staff News Editor at Clinical Trials Week -- Current study results on Clinical Research have been published. According to news reporting originating in Tehran, Iran, by NewsRx journalists, research stated, "In the present work, the interaction of hydrogen molecules with defective graphene structures doped by transition metal atoms is investigated by using first principles density functional theory (DFT). Defective graphene structures include StoneWales (SW), 585 and 555-777 and transition metals include early TMs, i.e. scandium (Sc), titanium (Ti) and vanadium (V)."

The news reporters obtained a quote from the research from the Sharif University of Technology, "It is found that in comparison with the pristine graphene, presence of defects significantly enhances the metal binding. Among three defects, 585 divacancy leads to the strongest binding between graphene and metal. Hydrogen adsorption is then evaluated by sequential addition of hydrogen molecules to the system. The results reveal that in comparison with other structures, 555-777 defective structure doped by Sc has the maximum capacity for hydrogen molecules. Also it is indicated that none of hydrogen molecules were dissociated during relaxation, indicating that all hydrogen molecules are accessible for reversible storage."

According to the news reporters, the research concluded: "Moreover, it is found that binding energies for adsorption of hydrogen molecules over 555-777/ Sc system are in the favorable range of 0.20.4 eV/H-2."

For more information on this research see: A comparative study on hydrogen interaction with defective graphene structures doped by transition metals. Physica E-Low-Dimensional Systems & Nanostructures, 2014;60():104-111. Physica E-Low-Dimensional Systems & Nanostructures can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands (see also Clinical Research).

Our news correspondents report that additional information may be obtained by contacting R. Lotfi, Sharif Univ Technol, Sharif Energy Res Inst, Tehran, Iran.

Keywords for this news article include: Iran, Asia, Gases, Tehran, Elements, Hydrogen, Clinical Research, Inorganic Chemicals, Clinical Trials and Studies

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Clinical Trials Week


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