On the control of carbon nanostructures for hydrogen storage applications

Guay, Patrice; Stansfield, B.L.; Rochefort, Alain

doi:10.1016/j.carbon.2004.04.027

Cited by 69 publications

(56 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Less than 1 wt % uptakes have been calculated for SWNTs, MWNTs, and graphite nanofibers at 293 K and 10 MPa. [17] Assuming that Keywords: active sites · hydrogen adsorption · monolayers · physisorption · porous carbon Abstract: Hydrogen physisorption in different carbonaceous materials was investigated in liquid nitrogen (77 K). The total hydrogen adsorption was found to have a linear relationship with the surface area of pores < 30 .…”

Section: Introductionmentioning

confidence: 99%

Investigation of Hydrogen Physisorption Active Sites on the Surface of Porous Carbonaceous Materials

2008

Chemistry A European J

View full text Add to dashboard Cite

Hydrogen physisorption in different carbonaceous materials was investigated in liquid nitrogen (77 K). The total hydrogen adsorption was found to have a linear relationship with the surface area of pores <30 A. The surface area and porosity of the carbon materials were determined by dinitrogen adsorption at 77 K and density function theory (DFT). The active sites for hydrogen adsorption were investigated and found to be related to the edge orientation of defective graphene micro-sheet domains.

show abstract

Section: Introductionmentioning

confidence: 99%

Investigation of Hydrogen Physisorption Active Sites on the Surface of Porous Carbonaceous Materials

2008

Chemistry A European J

View full text Add to dashboard Cite

show abstract

“…The adsorption can occur on the inner hollow cavity of CNTs, on the outside surface, and on the interstitial spaces between the nanotube bundles. With the great progress in the methods of preparing CNTs, large efforts have been devoted to the fields of application, such as gas storage [10], preconcentration of volatile organic compounds [11], removal of chemical and toxic wastes from water [12], and GC [13], etc. In addition, the possibility of chemical functionalization of the CNT sidewalls also opens additional possibilities for sorption of different molecules.…”

Section: Introductionmentioning

confidence: 99%

Preparation of single‐walled carbon nanotube fiber coating for solid‐phase microextraction of organochlorine pesticides in lake water and wastewater

Lü

Liu

Yang

et al. 2007

J of Separation Science

View full text Add to dashboard Cite

The feasibility of single-walled carbon nanotubes (SWCNTs) as adsorbents for solid-phase microextraction was investigated by using organochlorine pesticides (OCPs) as model compounds. SWCNTs were attached onto a stainless steel wire through organic binder. Potential factors affecting the extraction efficiency were optimized, including extraction time, extraction temperature, desorption time, desorption temperature, and salinity. The developed method has a linear range of 2-800 ng/L for most analytes, with coefficients of correlation ranging from 0.9911 to 0.9996, LODs ranged from 0.19 to 3.77 ng/L (S/N = 3), and RSDs in the range of 3.5-13.9% (n = 5). Compared with the commercial PDMS fiber, the SWCNT fiber has better thermal stability (over 350 degrees C) and longer life span (over 150 times). The developed method was applied to determine trace OCPs in lake water and wastewater samples with external standard calibration. Results showed that OCP contamination was very low in these samples, and HCHs were detected in almost all water samples while DDT concentrations were almost under detection limits in these samples. Recoveries obtained at 20 ng/L spiking level were in the range of 88.4-111% for OCPs in lake water. For wastewater samples, however, the recoveries were satisfactory for HCHs (63.6-97.1%) but relatively low for DDTs (44.7-116%) due to the high content of organic matter in wastewater.

show abstract

“…Numerous theoretical works on the gas adsorption in carbonaceous materials have been published in the literature [10][11][12][13][14][15][16][17][18][19][20][21][22]. They studied the properties of material models where the adsorbent surface was constituted by graphite basal planes or the external and internal surfaces of single or multi-walled carbon nanotubes.…”

Section: Introductionmentioning

confidence: 99%

Capillary condensation and adsorption of binary mixtures

Weinberger

Darkrim-Lamari

Levesque

2006

The Journal of Chemical Physics

View full text Add to dashboard Cite

The adsorption of equimolar binary mixtures of hydrogen-carbon dioxide, hydrogen-methane and methane-carbon dioxide in porous material models is determined by Grand Canonical Monte Carlo simulations. The material models have an adsorbent surface similar to that of nanofibers with a herringbone structure. Our main result, which is relevant for hydrogen purification and carbon dioxide capture, is that the adsorption selectivities calculated for the mixtures can differ significantly from those deduced from simulations of the adsorption of pure gases, in particular when one of the adsorbed gases presents a capillary condensation induced by confinement within the pore network. A comparison of our data is also made with theoretical models used in the literature for predicting the properties of the mixture adsorption.

show abstract

On the control of carbon nanostructures for hydrogen storage applications

Cited by 69 publications

References 26 publications

Investigation of Hydrogen Physisorption Active Sites on the Surface of Porous Carbonaceous Materials

Investigation of Hydrogen Physisorption Active Sites on the Surface of Porous Carbonaceous Materials

Preparation of single‐walled carbon nanotube fiber coating for solid‐phase microextraction of organochlorine pesticides in lake water and wastewater

Capillary condensation and adsorption of binary mixtures

Contact Info

Product

Resources

About