Results 91 to 100 of about 4,204 (206)

Polymer‐clay nanocomposite hydrogels with multiple responses to multiple stimuli

open access: yesResponsive Materials, Volume 3, Issue 3, August 2025.
Multistimuli‐responsive polymer‐smectite nanocomposite hydrogels designed by the polymer network design using functionalized polymer networks, copolymer nanocomposite hydrogel and functionalized smectite are summarized. Abstract Hydrogels are widely studied for their stimuli‐responsive properties.
Ploypailin Milin Saengdet, Makoto Ogawa
wiley   +1 more source

Titanium in Muscovite, Biotite, and Hornblende: Modeling, Thermometry, and Rutile Activities of Metapelites and Amphibolites [PDF]

open access: yes, 2012
Reactions involving the VITiIVAl-VIAlIVSi exchange in muscovite, biotite, and hornblende were calibrated thermodynamically using a set of experimental and natural data in rutile-plus quartz/coesite-bearing assemblages.
Chambers, Jennifer A., Kohn, Matthew J.
core   +1 more source

Direct evidence of a zigzag spin chain structure in the honeycomb lattice: A neutron and x-ray diffraction investigation on single crystal $\rm Na_2IrO_3$

open access: yes, 2012
We have combined single crystal neutron and x-ray diffractions to investigate the magnetic and crystal structures of the honeycomb lattice $\rm Na_2IrO_3$.
Cao, G.   +8 more
core   +1 more source

Crystal structure and crystal chemistry of fluorannite and its relationships to annite [PDF]

open access: yes, 2007
This contribution deals about the crystal chemical characterization of fluorannite from Katugin Ta-Nb deposit, Chitinskaya Oblast’, Kalar Range, Transbaikalia, Eastern-Siberian Region, Russia. The mineral chemical formula is (K0.960Na0.020Ba0.001) (Fe2+2.
BRIGATTI, Maria Franca   +3 more
core   +1 more source

Links between environmental conditions and pedogenic phyllosilicates in Podzols in the Tatra Mountains (Poland) – I. Mineralogy

open access: yesGeoderma
Pedogenic minerals reflect the environmental conditions that prevailed during soil formation. The present study investigates the clay mineral composition of the fine clay fraction separated from four soil profiles in the Tatra Mountains, Poland.
Artur Kuligiewicz   +6 more
doaj   +1 more source

Vanadium-rich Muscovite from Austria: Crystal Structure, Chemical Analysis, and Spectroscopic Investigations [PDF]

open access: yes, 2019
The crystal structure of a green, transparent, vanadium-rich muscovite-2M_1 (V_2O_3 = 11.35 wt.%, one of the highest amounts reported to date in muscovite) with the optimized formula (K_(0.94)Na_(0.06))M2(Al_(1.20)V^(3+)_(0.61)Mg_(0.12)Cr^(3+)_(0.07))T1 ...
Bernhardt, Heinz-Jürgen   +4 more
core  

New Insights into the Molecular Structures, Compositions, and Cation Distributions in Synthetic and Natural Montmorillonite Clays [PDF]

open access: yes, 2012
International audienceWe present a detailed investigation of the molecular structure of montmorillonite, an aluminosilicate clay with important applications in materials sciences, such as for catalysis, drug delivery, or as a waste barrier.
Allier, Teddy   +9 more
core   +2 more sources

Textural and hydration properties of a synthetic montmorillonite compared with a natural Na-exchanged clay analogue. [PDF]

open access: yes, 2010
International audienceAn aluminous montmorillonite has been synthesized at hydrothermal conditions (623 K, 120 MPa) and compared to the natural Na-exchanged Wyoming montmorillonite (Na-SWy2).
Le Forestier, Lydie   +3 more
core   +4 more sources

Evolution of Dioctahedral Vermiculite in Geological Environments—An Experimental Approach

open access: yesClays and Clay Minerals, 2013
AbstractDioctahedral vermiculite commonly occurs in soils and fresh sediments, but has not been reported in sedimentary rocks. Little is known of the evolution of this mineral during diagenesis. According to the available literature, dioctahedral vermiculite is likely to exhibit strong potential for selective sorption and fixation of K+ involving ...
openaire   +2 more sources

Adsorption of ciprofloxacin on 2:1 dioctahedral clay minerals

open access: yesApplied Clay Science, 2011
Abstract Frequent detection of antibiotics in natural environment and wastewater effluent requires systematic investigations of various clay minerals. Dioctahedral 2:1 clay minerals are major constituents of soil and sediments. Interaction of these clay minerals and ciprofloxacin (CIP) was studied.
Wang, Chih-Jen   +2 more
openaire   +2 more sources

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