| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Wang, Lei
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2023An analysis of rotationally moulded sandwich structure’s repeated impact properties
- 2023Fusion of Ni Plating on CP-Titanium by Electron Beam Single-Track Scanning: Toward a New Approach for Fabricating TiNi Self-Healing Shape Memory Coating
- 2022Green synthesis of Ag/Fe3O4 nanoparticles using Mentha longifolia flower extract: evaluation of its antioxidant and anti-lung cancer effects
- 2022An atomistic simulation study of rapid solidification kinetics and crystal defects in dilute Al–Cu alloyscitations
- 2022Multiscale analysis of crystalline defect formation in rapid solidification of pure aluminium and aluminium–copper alloyscitations
- 2022Reprocessed materials used in rotationally moulded sandwich structures for enhancing environmental sustainability: low-velocity impact and flexure-after-impact responsescitations
- 2022Multiscale analysis of crystal defect formation in rapid solidification of pure aluminium and aluminium-copper alloys
- 2022Mechanically Flexible Thermoelectric Hybrid Thin Films by Introduction of PEDOT:PSS in Nanoporous Ca3Co4O9citations
- 2021On the use of limestone calcined clay cement (LC<sup>3</sup>) in high-strength strain-hardening cement-based composites (HS-SHCC)citations
- 2021Bimetallic effects on Zn-Cu electrocatalysts enhance activity and selectivity for the conversion of CO2 to COcitations
- 2021Growth and optical properties of CaxCoO2 thin filmscitations
- 2021Guiding the Catalytic Properties of Copper for Electrochemical CO2 Reduction by Metal Atom Decoration.citations
- 2020The role of zinc in metakaolin-based geopolymerscitations
- 2020Unconventional valley-dependent optical selection rules and landau level mixing in bilayer graphenecitations
- 2019Magic continuum in twisted bilayer WSe2
- 2019An investigation of low velocity impact properties of rotationally molded skin–foam–skin sandwich structurecitations
- 2018Fracture toughness of rotationally molded polyethylene and polypropylenecitations
- 2016Nonlinear Generation of Vector Beams from AlGaAs Nanoantennascitations
- 2016Electron optics with p-n junctions in ballistic graphenecitations
- 2014Charge Control And Wettability Alteration At Solid-liquid Interfacescitations
- 2011A Common Genetic Variant in the 3′-UTR of Vacuolar H <sup>+</sup> -ATPase <i>ATP6V0A1</i> Creates a Micro-RNA Motif to Alter Chromogranin A Processing and Hypertension Riskcitations
- 2008Heritability and Genome-Wide Linkage in US and Australian Twins Identify Novel Genomic Regions Controlling Chromogranin Acitations
- 2007Polysulfide networks. in Situ formation and characterization of the elastomeric behaviorcitations
Places of action
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document
Charge Control And Wettability Alteration At Solid-liquid Interfaces
Abstract
Most solid surfaces acquire a finite surface charge upon exposure to aqueous environments due to desorption and/or adsorption of ionic species. The resulting electrostatic forces play a crucial role in many fields of science, including colloidal stability, self-assembly, wetting, and biophysics as well as technology. Enhanced oil recovery is an example of a large scale industrial process that hinges in many respects on these phenomena.In this paper, we present a series of experiments illustrating fundamental aspects of low salinity water flooding in well-defined model systems. We show how pH and ion content of the water phase as well as the presence of model polar components (fatty acids) in the oil phase affect the wettability (i.e. contact angle distribution) of oil-water-rock systems. Specifically, we discuss high resolution atomic force microscopy (AFM) experiments demonstrating the preferential adsorption ofmultivalent cations to mineral surfaces such as mica and gibbsite. Cation adsorption leads to increased and in some cases reversed surface charge at thesolid-liquid interface. In the case of charge reversal, the adsorption processcan trigger a wetting transition from complete water wetting in ambient oil (i.e. zero water contact angle) in the absence to partial wetting in the presence of divalent cations. While already dramatic for pure alkanes as baseoil, adding fatty acids to the oil phase enhances the effect of divalent ions on the oil-water-rock wettability even more. In this case, contact angle variations of more than 70° can be observed as a function of the saltconcentration. This enhancement is caused by the deposition of a thin film of fatty acid on the solid surface. AFM as well as surface plasmon resonance spectroscopy measurement in a microfluidic continuous flow cell directly demonstrate that adsorbed Ca ions promote secondary adsorption of acidic components from the oil phase.The combination of the effects discussed provides a rational scenario explaining many aspects of the success of low salinity water flooding.