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- W2021845294 abstract "The hydrogen storage (H-storage) capacity of alkali (Li + , Na + and K + ) and alkaline earth metal ion (Mg 2+ and Ca 2+ ) doped cubane, cyclohexane and adamantane has been investigated using Density Functional Theory (DFT) based M05-2X functional employing 6-31+G∗∗ basis set. The adsorption of number of H 2 molecules on the metal ion doped complexes depends on ionic radii and charge of the metal ions. Among the 15 complexes investigated in this study, Mg 2+ ion doped cubane, cyclohexane and adamantane complexes have higher H-storage capacity when compared to other complexes. The calculated binding energy (BE) of 5H 2 @Cub-Mg 2+ complex is 46.85 kcal/mol with binding energy per H 2 molecule (BE/nH 2 ) of 9.37 kcal/mol. The corresponding gravimetric density of the complexes is 7.3 wt%. In the case of 4H 2 @Cyc-Mg 2+ complex, the BE is 32.19 kcal/mol (BE/nH 2 is 8.05 kcal/mol with 6.9 wt% in gravimetric density). The Adm-Mg 2+ complexes adsorb 4H 2 molecules with BE of 33.33 kcal/mol, the BE of per H 2 molecule is 8.33 kcal/mol. The corresponding gravimetric density of the complex is around 4.8 wt%, respectively. A new linker modified MOP-9 has been constructed based on the results and their H-storage capacity has also estimated. • To determine the H-storage capacities of cubane, cyclohexane and adamantane. • To assess the role of metal ions and their oxidation state in H-storage applications. • To design new metal-organic polyhedra (MOP) based on the results." @default.
- W2021845294 created "2016-06-24" @default.
- W2021845294 creator A5029695620 @default.
- W2021845294 creator A5064261512 @default.
- W2021845294 date "2014-02-01" @default.
- W2021845294 modified "2023-10-13" @default.
- W2021845294 title "Hydrogen storage capacity of alkali and alkaline earth metal ions doped carbon based materials: A DFT study" @default.
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- W2021845294 doi "https://doi.org/10.1016/j.ijhydene.2013.11.075" @default.
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