Intercalation and retention of carbon dioxide in a smectite clay promoted by interlayer cations

L Michels, JO Fossum, Z Rozynek, H Hemmen… - Scientific reports, 2015 - nature.com
A good material for CO2 capture should possess some specific properties:(i) a large
effective surface area with good adsorption capacity,(ii) selectivity for CO2,(iii) regeneration …

Clay nanolayer encapsulation, evolving from origins of life to future technologies

JO Fossum - The European Physical Journal Special Topics, 2020 - Springer
Clays are the siblings of graphite and graphene/graphene-oxide. There are two basic ways
of using clays for encapsulation of sub-micron entities such as molecules, droplets, or …

Cation exchange dynamics confined in a synthetic clay mineral

G Grassi, L Michels, Z Rozynek, MAS Altoé… - The European Physical …, 2014 - Springer
In this work we report X-Ray Diffraction (XRD) and Energy Dispersive X-Ray Spectroscopy
(EDS) measurements to investigate the confined cation exchange process in saline …

Evaluation and comparison of bentonite surface fractal dimension and prediction of swelling deformation: Synchrotron radiation SAXS and N2-adsorption isotherms …

L Peng, B Chen, Y Pan - Construction and Building Materials, 2021 - Elsevier
A key parameter for calculating the swelling deformation using fractal model is the fractal
dimension. Small angle X-ray scattering (SAXS) and liquid nitrogen adsorption method …

Physicochemical characterisation of fluorohectorite: Water dynamics and nanocarrier properties

SR Larsen, L Michels, ÉC dos Santos, MC Berg… - Microporous and …, 2020 - Elsevier
Clay minerals such as fluorohectorite (FHt) have come into prominence as drug carrier
systems due to their layered structure and excellent cation exchange capabilities. Water …

Continuous water adsorption states promoted by Ni2+ confined in a synthetic smectite

MAS Altoé, L Michels, EC dos Santos, R Droppa Jr… - Applied Clay …, 2016 - Elsevier
The water adsorption isotherms of Ni-fluorohectorite have been obtained from the relative
humidity dependence of X-ray diffraction intensities, and continuous transitions between the …

Spontaneous formation of an ordered interstratification upon Ni-exchange of Na-fluorohectorite

P Loch, KWB Hunvik, F Puchtler, S Weiß, KK Seljelid… - Applied Clay …, 2020 - Elsevier
Interstratified structures are a common phenomenon in layered silicates and the
differentiation between random and ordered interstratifications might be in some cases …

Simultaneous quick-scanning X-ray absorption spectroscopy and X-ray diffraction

D Lützenkirchen-Hecht, B Bornmann… - Journal of Physics …, 2022 - iopscience.iop.org
The existing setup for time-resolved quick-scanning X-ray absorption spectroscopy
(QEXAFS) at beamline P64 at the PETRA III storage ring is complemented by new …

Water vapor diffusive transport in a smectite clay: Cationic control of normal versus anomalous diffusion

L Michels, Y Méheust, MAS Altoe, ÉC Dos Santos… - Physical Review E, 2019 - APS
The transport of chemical species in porous media is ubiquitous in subsurface processes,
including contaminant transport, soil drying, and soil remediation. We study vapor transport …

The Impact of Thermal History on Water Adsorption in a Synthetic Nanolayered Silicate with Intercalated Li+ or Na+

L Michels, CLS Da Fonseca, Y Méheust… - The Journal of …, 2020 - ACS Publications
For applications benefitting from the swelling properties of nanolayered silicates (clay
minerals), it is of paramount importance to understand the hysteresis in the clay–water …