Determination of adsorption energy distribution by regularization and a characterization of certain adsorption isotherms

Merz, P.H.

doi:10.1016/0021-9991(80)90012-1

Cited by 75 publications

(38 citation statements)

References 25 publications

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“…It is known that Tikhonov regularization (Wahba, 1977;Merz, 1980, Groetsch, 1984 can provide stable solutions of this ill-posed problem. This is discussed further below.…”

Section: Nmr Spin-lattice Reluxation Measurements Of Pore Volume-to-smentioning

confidence: 99%

Characterization of fluid distributions in porous media by NMR techniques

et al. 1996

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“…It is known that Tikhonov regularization (Wahba, 1977;Merz, 1980, Groetsch, 1984 can provide stable solutions of this ill-posed problem. This is discussed further below.…”

Section: Nmr Spin-lattice Reluxation Measurements Of Pore Volume-to-smentioning

confidence: 99%

Characterization of fluid distributions in porous media by NMR techniques

et al. 1996

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“…Analytical expressions of the CAS underlying NICA isotherm have been reported as well as expressions for the dependence of the main parameters of this distribution (average and variance) with respect to pH Rey-Castro et al, 2009). Notice that the use of the analytical expressions of the CAS underlying NICA overcomes the limitations due to the possible presence of artefacts in the CAS obtained by direct numerical inversion of experimental binding data (Dzombak et al, 1986;Merz, 1980;Vos and Koopal, 1985).…”

Section: Conditional Affinity Spectra At Constant Total Metal Concentmentioning

confidence: 99%

Competition effects in cation binding to humic acid: Conditional affinity spectra for fixed total metal concentration conditions

David

Mongin

Rey-Castro

et al. 2010

Geochimica et Cosmochimica Acta

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“…This method, called regularization, has been described in detail in several works (Wilson 1992;Szombathely et al 1992;Merz 1980;Whaba 1977). In this work, we used the procedure proposed by Davies et al (1999) and by Davies and Seaton (1998).…”

Section: Pore Size Distributionsmentioning

confidence: 99%

On the influence of heterogeneity of graphene sheets in the determination of the pore size distribution of activated carbons

et al. 2011

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We model carbon-based microporous materials, such as activated carbons, taking into account surface defects in the form of geometrical rugosity in the inner surface of each graphitic slit pore. The used model is a simplified variation of the randomly etched graphite (REG) pore model (Seaton et al., Langmuir 13:1199-1204.When subcritical Ar or N 2 is used as probe-gas to simulate the adsorption process in slit pores assembled with ideally perfect graphene walls, the resulting pore size distribution (PSD) rather consistently shows a relatively low population of pores around 12-13 Å. This feature is supposed to be an artifact introduced by the perfect graphene sheets modeling assumptions.In this study, we particularly examine to which extent the gap of the PSD around 12-13 Å is linked to the perfect graphene sheet model and the effects of surface rugosity in the determination of the PSD. Adsorption isotherms of nitrogen at 77 K and local density distributions are studied simultaneously in the simulation. We found that, by mixing a complete series of heterogeneous pores with 25% of repulsive sites, a noticeable improvement in the fitting between the theoretical and the experimental isotherms was achieved and the PSD gap was eliminated. The mixed model with 25% of repulsive sites provided a more realistic estimate of the internal structure of microporous carbons.

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Determination of adsorption energy distribution by regularization and a characterization of certain adsorption isotherms

Cited by 75 publications

References 25 publications

Characterization of fluid distributions in porous media by NMR techniques

Characterization of fluid distributions in porous media by NMR techniques

Competition effects in cation binding to humic acid: Conditional affinity spectra for fixed total metal concentration conditions

On the influence of heterogeneity of graphene sheets in the determination of the pore size distribution of activated carbons

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