Graphene Oxide Framework Materials: Theoretical Predictions and Experimental Results

Burress, Jacob; Gadipelli, Srinivas; Ford, Jason A.; Simmons, Jason M.; Zhou, Wei; Yildirim, Taner

doi:10.1002/anie.201003328

Cited by 390 publications

(301 citation statements)

References 14 publications

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“…Despite this history, the structure of GO is still under debate. GO based materials have generated incredible interest for energy-related applications because of its multifunctional flexibility [25,26]. Moreover, GO has recently been studied for various biological applications [27], and has been applied in areas such as fabrication of intercalated GO composites [28].…”

Section: Simulation Details and Methodsmentioning

confidence: 99%

Nanoporous graphene oxide membrane and its application in molecular sieving

Fatemi¹,

Arabieh²,

Sepehrian³

2015

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Gas transport through graphene-derived membranes has gained much interest recently due to its promising potential in filtration and separation applications. In this work, we explore Kr-85 gas radionuclide sequestration from natural air in nanoporous graphene oxide membranes in which different sizes and geometries of pores were modeled on the graphene oxide sheet. This was done using atomistic simulations considering mean-squared displacement, diffusion coefficient, number of crossed species of gases through nanoporous graphene oxide, and flow through interlayer galleries. The results showed that the gas features have the densest adsorbed zone in nanoporous graphene oxide, compared with a graphene membrane, and that graphene oxide was more favorable than graphene for Kr separation. The aim of this paper is to show that for the well-defined pore size called P-7, it is possible to separate Kr-85 from a gas mixture containing Kr-85, O 2 and N 2 . The results would benefit the oil industry among others.

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Section: Simulation Details and Methodsmentioning

confidence: 99%

Nanoporous graphene oxide membrane and its application in molecular sieving

Fatemi¹,

Arabieh²,

Sepehrian³

2015

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“…Calculations have shown that a GO framework (GOF) which can be prepared from GO and benzenediboronic acid could be used for hydrogen adsorption (Fig. 13b), 170,171 predicting that the GOF can theoretically achieve 6.1 wt% H 2 uptake at 77 K and 1 bar. However, the experimental studies only showed a maximum uptake of 1 wt %.…”

Section: Gas Adsorptionmentioning

confidence: 99%

“…However, the experimental studies only showed a maximum uptake of 1 wt %. 170 In a similar study Srinivas et al used solvothermal reactions to prepare a porous GOF. 172 The obtained framework pillared by 1,4-phenyldiboronic acid had a maximum adsorption capacity of 1.2 wt% at 77 K and 10 bar.…”

Section: Gas Adsorptionmentioning

confidence: 99%

Environmental applications using graphene composites: water remediation and gas adsorption

et al. 2013

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This review deals with wide-ranging environmental studies of graphene-based materials on the adsorption of hazardous materials and photocatalytic degradation of pollutants for water remediation and the physisorption, chemisorption, reactive adsorption, and separation for gas storage. The environmental and biological toxicity of graphene, which is an important issue if graphene composites are to be applied in environmental remediation, is also addressed.

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“…Therefore, the charge and discharge kinetics must be very high. Recently, it was reported that by using of different activation procedures other than heat treatment, such as chemical reduction, to remove unreacted functional groups the O/C ratio could be reduced and improve the surface area and adsorption capacity of graphene oxide frameworks (GOFs) increases significantly [61]. Moreover, doping effect also can increase the capacity of hydrogen storage in graphene: the maximum hydrogen storage capacity in lithium ion doped pillared graphene material (Fig.15) around 7.6 wt% in the condition of 77 K and 100 bar pressure [10].…”

Section: Graphene and Graphanementioning

confidence: 99%