A triple-layer model of the surface electrochemical properties of clay minerals

Leroy, Philippe; Revil, A.

doi:10.1016/j.jcis.2003.08.007

Cited by 277 publications

(275 citation statements)

References 19 publications

Supporting

Mentioning

266

Contrasting

Order By: Relevance

“…The capacitance 1 C describing the electrical potential behavior between the "0-plane" and the "β-plane" was adjusted using the Simplex algorithm [64] to match the modeled to the observed zeta potentials. This algorithm decreases in a least square sense the cost function between observed and computed zeta potentials (read Caceci and Cacheris [64] and Leroy and Revil [50] for more information regarding the Simplex algorithm). Other surface complexation parameters (equilibrium sorption constants) were taken from Heberling et al [10] ( Table 1).…”

Section: Zeta Potential Predicted By the Basic Stern Modelmentioning

confidence: 99%

Influence of surface conductivity on the apparent zeta potential of calcite

Leroy

Heberling

et al. 2016

Journal of Colloid and Interface Science

114

View full text Add to dashboard Cite

Zeta potential is a physicochemical parameter of particular importance in describing the surface electrical properties of charged porous media. However, the zeta potential of calcite is still poorly known because of the difficulty to interpret streaming potential experiments. The HelmholtzSmoluchowski (HS) equation is widely used to estimate the apparent zeta potential from these experiments. However, this equation neglects the influence of surface conductivity on streaming potential. We present streaming potential and electrical conductivity measurements on a calcite powder in contact with an aqueous NaCl electrolyte. Our streaming potential model corrects the apparent zeta potential of calcite by accounting for the influence of surface conductivity and flow regime. We show that the HS equation seriously underestimates the zeta potential of calcite, particularly when the electrolyte is diluted (ionic strength ≤0.01 M) because of calcite surface conductivity. The basic Stern model successfully predicted the corrected zeta potential by assuming that the zeta potential is located at the outer Helmholtz plane, i.e. without considering a stagnant diffuse layer at the calcite-water interface. The surface conductivity of calcite crystals was inferred from electrical conductivity measurements and computed using our basic Stern model. Surface conductivity was also successfully predicted by our surface complexation model.

show abstract

Section: Zeta Potential Predicted By the Basic Stern Modelmentioning

confidence: 99%

Influence of surface conductivity on the apparent zeta potential of calcite

Leroy

Heberling

et al. 2016

Journal of Colloid and Interface Science

114

View full text Add to dashboard Cite

show abstract

“…In Eq. However, because we include the Stern layer as part of the solid phase (Figure 1), the surface of the solid is conductive and is responsible for the so-called "surface conductivity" (e.g., [12,13]). …”

Section: The Reference Statementioning

confidence: 99%

“…(11) The current density j s of the solid phase is due to electrical conduction in the Stern layer coating the insulating grains. For clay materials, Leroy and Revil [12] and Leroy and Revil [13] presented a double layer model to determine the electrical conductivity associated with electromigration of the ions in the Stern layer.…”

Section: Ampère's Lawmentioning

confidence: 99%

Electrokinetic coupling in unsaturated porous media

Revil

Linde

Cérepi

et al. 2007

Journal of Colloid and Interface Science

Self Cite

216

337

View full text Add to dashboard Cite

Abstract. We consider a charged porous material that is saturated by two fluid phases that are immiscible and continuous at the scale of a representative elementary volume. The wetting phase for the grains is water and the non-wetting phase is assumed to be an electrically insulating viscous fluid. We use a volume averaging approach to derive the linear constitutive equations for the electrical current density as well as and the seepage velocities of the wetting and non-wetting phases at the scale of a representative elementary volume. These macroscopic constitutive equations are obtained by volume-averaging Ampère's law together with the Nernst-Planck equation and the Stokes equations. The material properties entering the macroscopic constitutive equations are explicitly described as a function of the saturation of the water phase, the electrical formation factor, and parameters that describe the capillary pressure function, the relative permeability function, and the variation of electrical conductivity with saturation. New equations are derived for the streaming potential and electro-osmosis coupling coefficients. A primary drainage and imbibition experiment is simulated numerically to demonstrate that the relative streaming potential coupling coefficient depends not only on the water saturation, but also on the material properties of the sample as well as the saturation history. We also compare the predicted streaming potential coupling coefficients with experimental data from four dolomite core samples. Measurements on these samples include electrical conductivity, capillary pressure, the streaming potential coupling coefficient at various level of saturation, and the permeability at saturation of the rock samples. We found a very good agreement between these experimental data and the model predictions.

show abstract

“…Normally, more negative surface sites will be created on the mineral surface with increasing temperature [e.g., Revil et al, 1999] and, as discussed above, G d will increase. To predict the partition coefficient, however, it is necessary to perform TLM calculations have [e.g., Leroy and Revil, 2004;Leroy et al, 2008]. Given the strong dependence of chargeability on salinity equation (28), M t is a less important parameter for estimating permeability from SIP response, and so we do not compute f Q in our study.…”

Section: Dependence On Temperaturementioning

confidence: 99%

Dependence of spectral‐induced polarization response of sandstone on temperature and its relevance to permeability estimation

Zisser¹,

Kemna²,

Nover³

2010

J. Geophys. Res.

View full text Add to dashboard Cite

[1] The possibility to estimate permeability from the electrical spectral induced polarization (SIP) response might be the most important benefit offered by SIP measurements. It can thus be deduced that, in the future, SIP measurements will be carried out more frequently at the field scale or in a well-logging context to estimate permeability. In the shallow subsurface, however, the temperature generally exhibits seasonal variability, and in the deeper subsurface, it usually increases with depth. Hence, knowledge about the dependence of the SIP response on temperature is necessary in order to avoid possible misinterpretation of datasets impacted by thermal effects. In our study, we present a semiempirical framework to describe the temperature dependence of the SIP response. We briefly introduce the SIP response and its relation to permeability in terms of an electrochemical polarization mechanism and combine this formulation with relationships for the dependence of ionic mobility on temperature. We compare the predictions of our formulation with the experimental data from SIP measurements performed on sandstone at temperatures from 0°C to 80°C. The measured SIP response was transformed into a relaxation time distribution, using the empirical Cole-Cole model and a regularized Debye decomposition procedure. The SIP response was found to be in good agreement with the theoretical model. The temperature dependence of both direct current conductivity and relaxation time is controlled mainly by the dependence of ionic mobility on temperature, and the shape of the relaxation time distribution of the investigated sandstone is almost independent of temperature. The temperature effect on the SIP response can therefore be easily corrected.Citation: Zisser, N., A. Kemna, and G. Nover (2010), Dependence of spectral-induced polarization response of sandstone on temperature and its relevance to permeability estimation,

show abstract

A triple-layer model of the surface electrochemical properties of clay minerals

Cited by 277 publications

References 19 publications

Influence of surface conductivity on the apparent zeta potential of calcite

Influence of surface conductivity on the apparent zeta potential of calcite

Electrokinetic coupling in unsaturated porous media

Dependence of spectral‐induced polarization response of sandstone on temperature and its relevance to permeability estimation

Contact Info

Product

Resources

About