Hydrogen adsorption in carbon nanostructures

Poirier, Éric

doi:10.1016/s0360-3199(01)00014-3

Cited by 176 publications

(140 citation statements)

References 17 publications

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“…A well-known rule of thumb for hydrogen storage in physisorbent materials is "Chahine's rule" 26 which predicts 1 wt% Gibbs excess maximum uptake per 500 m 2 g -1 of BET surface area at 77 K. A similar trend has been shown for methane uptake in physisorbent materials at 298 K, 27,28 and the carbons in this study are consistent with previous reports (shown in Figure S12). The relationship for methane is 4.4 mmol g -1 (6.6 wt%) Gibbs excess maximum uptake per 1000 m 2 g -1 of BET surface area at 298 K. Figure S12.…”

Section: Dependence Of Measured Uptake Capacity On Surface Areasupporting

confidence: 91%

Anomalous Isosteric Enthalpy of Adsorption of Methane on Zeolite-Templated Carbon

et al. 2013

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A thermodynamic study of the enthalpy of adsorption of methane on high surface area carbonaceous materials was carried out from 238 to 526 K. The absolute quantity of adsorbed methane as a function of equilibrium pressure was determined by fitting isotherms to a generalized Langmuir-type equation. Adsorption of methane on zeolite-templated carbon, an extremely high surface area material with a periodic arrangement of narrow micropores, shows an increase in isosteric enthalpy with methane occupancy; i.e., binding energies are greater as adsorption quantity increases. The heat of adsorption rises from 14 to 15 kJ/mol at near-ambient temperature and then falls to lower values at very high loading (above a relative site occupancy of 0.7), indicating that methane/ methane interactions within the adsorption layer become significant. The effect seems to be enhanced by a narrow pore-size distribution centered at 1.2 nm, approximately the width of two monolayers of methane, and reversible methane delivery increases by up to 20% over MSC-30 at temperatures and pressures near ambient.

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Section: Dependence Of Measured Uptake Capacity On Surface Areasupporting

confidence: 91%

Anomalous Isosteric Enthalpy of Adsorption of Methane on Zeolite-Templated Carbon

et al. 2013

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“…In the second communication [9], are presented somewhat more modest values of reversible sorption -up to 4 molecules Н 2 /atom С, which still exceeds twice the H/C atomic ratio in СН 4 and corresponds to the sorption of 0.4 g Н 2 /g С. But these values have not been confirmed by other authors and were subject to the strict critics [7,[10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 85%

“…For instance, according to Gupta and Strivastava, the CFC prepared from ethylenе at 600°C over the Cu/Ni catalysts have the hydrogen storage capacity of 10÷15 wt.% at the pressure of 90 atm [31] (however, it should be noted that these CFC could contain a rather significant amount of Ni, which was used as a catalyst; therefore part of the sorption can be assigned to the formation of hydride NiH 3 ). On the other hand, according to Poirier et al [14], the CFC produced from acetylene or ethylene over the Ni or Cu/Ni catalysts at the same hydrogen pressure demonstrated the storage capacity of onlỹ 0.7 wt.%. It is remarkable, that upon the same hydrogen pressure of 10.5 МРа the identical capacity was shown by supermicroporous АХ-21 [14].…”

Section: Introductionmentioning

confidence: 92%

“…On the other hand, according to Poirier et al [14], the CFC produced from acetylene or ethylene over the Ni or Cu/Ni catalysts at the same hydrogen pressure demonstrated the storage capacity of onlỹ 0.7 wt.%. It is remarkable, that upon the same hydrogen pressure of 10.5 МРа the identical capacity was shown by supermicroporous АХ-21 [14]. The latter one has the surface area ca.…”

Section: Introductionmentioning

confidence: 92%

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Adsorption Methods of Hydrogen and Methane Storage for the Fuel Cell Application

Исмагилов

Фенелонов

Krechetova

et al. 2017

Eurasian Chem. Tech. J.

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Adsorption of H 2 and CH 4 was performed at a pressure of to 100 atm on the samples of catalytic filamentous carbon (CFC) and supermicroporous active carbon (SAC) with a surface area ca. 3000 m 2 /g. It is shown that H 2 is better sorbed on the CFC than on the SAC, while the opposite is observed for the CH 4 adsorption. The high values of H 2 sorption on the CFC (to 25-35 mg H 2 /g carbon) with a surface area of 100-300 m 2 /g is explained by hydrogen intercalation between the graphite-like CFC layers. Thus, it is worthwhile investigating the possibility of hydrogen and methane storage on the carbon porous materials.

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“…Strobel et al [162] were also unable to confirm the high storage capacity values of CNFs. Poirier et al [163] studied hydrogen adsorption in various carbon nanostructures including nanofibers. They found that at room temperature CNFs could adsorb merely 0.7 wt.% at 105 bar.…”

Section: Carbon and Carbon-based Nanostructuresmentioning

confidence: 99%

Advances in the application of nanotechnology in enabling a ‘hydrogen economy’

2008

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Hydrogen is gaining a great deal of attention as an energy carrier as well as an alternative fuel. However, in order to fully implement the so called 'hydrogen economy' significant technical challenges need to be overcome in the fields of production and storage of hydrogen and its point of use especially in fuel cells for the automotive industry. The purpose of this review is to present and discuss recent advances in the use of nanomaterials for solar hydrogen production and on-board solid state storage of hydrogen. The role of nanotechnology in enhancing the efficiency of fuel cells and reducing their cost is also discussed.

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Hydrogen adsorption in carbon nanostructures

Cited by 176 publications

References 17 publications

Anomalous Isosteric Enthalpy of Adsorption of Methane on Zeolite-Templated Carbon

Anomalous Isosteric Enthalpy of Adsorption of Methane on Zeolite-Templated Carbon

Adsorption Methods of Hydrogen and Methane Storage for the Fuel Cell Application

Advances in the application of nanotechnology in enabling a ‘hydrogen economy’

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