2014
DOI: 10.1002/er.3203
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Hydrogen storage on graphene using Benkeser reaction

Abstract: SUMMARY Recently, graphene has received great attention as potential hydrogen storage media. Here, we report a new route to store/chemisorb high content of hydrogen on graphene by employing Benkeser reaction. Graphene nanosheets are produced via a soft chemistry synthetic route involving oxidation of graphite using Improved method, ultrasonic exfoliation, and chemical reduction by using hydrazine with overnight heat treatment. Graphene is hydrogenated by using lithium in ethylenediamine under Benkeser reaction… Show more

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Cited by 28 publications
(14 citation statements)
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“…The main arguments for the use of a hybrid system rather than HGMs alone were as follows: First, the volumetric storage density can be increased by approximately 80% compared with HGMs alone; second, the costs can be significantly reduced when compared with a stand-alone hydrolytic system. Studies in metal-organic frameworks showed that storage densities of up to γ G = 17.6 wt% (MOF-210) and γ V = 54 kg/m 3 (NOTT-112) are possible at low temperatures (77 K) [62,63], with graphene up to 15 wt% being realized [64]. So far, storage densities of γ G = 3.1 wt% and γ V = 18.7 kg/m 3 were achieved in experiments with NaBH 4 .…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…The main arguments for the use of a hybrid system rather than HGMs alone were as follows: First, the volumetric storage density can be increased by approximately 80% compared with HGMs alone; second, the costs can be significantly reduced when compared with a stand-alone hydrolytic system. Studies in metal-organic frameworks showed that storage densities of up to γ G = 17.6 wt% (MOF-210) and γ V = 54 kg/m 3 (NOTT-112) are possible at low temperatures (77 K) [62,63], with graphene up to 15 wt% being realized [64]. So far, storage densities of γ G = 3.1 wt% and γ V = 18.7 kg/m 3 were achieved in experiments with NaBH 4 .…”
Section: Resultsmentioning
confidence: 99%
“…As a conclusion, a study with HGMs and NH 3 BH 3 should be carried out, and the results compared with the current study. Studies in metal-organic frameworks showed that storage densities of up to γ G = 17.6 wt% (MOF-210) and γ V = 54 kg/m 3 (NOTT-112) are possible at low temperatures (77 K) [62,63], with graphene up to 15 wt% being realized [64].…”
Section: Resultsmentioning
confidence: 99%
“…It was concluded that water as a quenching agent and potassium as a source of electrons represent the optimal combination to achieve the highest degree of hydrogenation . The modified Birch reduction method (Benkeser reaction), utilizing alkyl amine as a solvent (allowing to perform the reaction at room temperature), has been used for graphene hydrogenation . The last category of graphane preparation combines various synthetic approaches.…”
Section: Introductionmentioning
confidence: 99%
“…[18] The modified Birch reduction method (Benkeser reaction), utilizing alkyl amine as as olvent (allowing to perform the reaction at room temperature), has been used for graphene hydrogenation. [19] The last category of graphane preparation combines various synthetic approaches. For example, electrochemical exfoliation of graphite in ad eep eutectic solvent accompanied by hydrogenationh as been reported.…”
Section: Introductionmentioning
confidence: 99%
“…One way to address the problem is to optimize existing materials either chemically [6,7] or geometrically [8]. Among the most promising materials are carbon based [9][10][11], hydrides [12,13], and metal organic framework [14]. In this work, we considered modification of graphene to enhance its storage capacity.…”
Section: Introductionmentioning
confidence: 99%