Liquid Phase Exfoliation
Liquid Phase Exfoliation - Related Videos
08:54
Synthesis and Exfoliation of Discotic Zirconium Phosphates to Obtain Colloidal Liquid Crystals
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Cited by 3 •
2016
A two dimensional model material of discotic zirconium phosphate was developed. The inorganic crystal with lamellar structure was synthesized by hydrothermal, reflux, and microwave-assisted methods. On exfoliation with organic molecules, layered crystals can be converted to monolayers, and nematic liquid crystal phase was formed at sufficient concentration of monolayers.
10:41
Preparation of Liquid-exfoliated Transition Metal Dichalcogenide Nanosheets with Controlled Size and Thickness: A State of the Art Protocol
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Cited by 44 •
2016
A protocol for the liquid exfoliation of layered materials to nanosheets, their size selection and size measurement by microscopic and spectroscopic techniques is presented.
11:00
Liquid Phase Reactor: Sucrose Inversion
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2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA Both batch and continuous flow reactors are used in catalytic reactions. Packed beds, which use solid catalysts and a continuous flow, are the most common configuration. In the absence of an extensive recycle stream, such packed bed reactors are typically modeled as "plug flow". The other most common continuous reactor is a stirred tank, which is assumed to be perfectly...
12:37
Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers
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2015
Here, we present a protocol to investigate multi-component phase diagrams using externally controlled magnetic beads as liquid carriers in a lab-in-tube approach. This approach can aid in applications that seek to gather further information on phase change in complex liquid systems.
12:04
Exfoliation of Egyptian Blue and Han Blue, Two Alkali Earth Copper Silicate-based Pigments
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Cited by 34 •
2014
The preparation and exfoliation of CaCuSi4O10 and BaCuSi4O10 are described. Upon stirring in hot water, CaCuSi4O10 spontaneously exfoliates into monolayers, whereas BaCuSi4O10 requires ultrasonication in organic solvents. Near infrared (NIR) imaging illustrates the NIR emission properties of these materials, and aqueous dispersions of these nanomaterials are useful for solution processing.
FAQs
Solvent selection is important because the liquid must interact favorably with the exposed crystal surfaces. This compatibility helps stabilize the separated sheets in dispersion while the applied processing energy works against interlayer forces. In chemistry, choosing the solvent therefore affects whether exfoliated nanosheets remain dispersed and supports control over the resulting colloidal material.
These techniques supply mechanical energy to the layered crystal. That energy helps overcome the forces holding adjacent sheets together, allowing separation into individual or few-layer nanosheets. Their role is not simply to mix the liquid; they drive exfoliation and influence whether the process produces a useful dispersion of thin sheets.
Centrifugation separates material according to its dispersal and settling behavior after processing. It can remove unexfoliated crystal fragments and help sort the dispersion, producing a more selected nanosheet population. This cleanup step is important when researchers need better control over sheet thickness or want to adjust the characteristics of the final colloid.
A typical workflow begins by placing a layered crystal in a suitably chosen liquid. Sonication, stirring, or high-shear mixing then supplies energy for sheet separation. Afterward, centrifugation can remove remaining unexfoliated material and sort the dispersion. The resulting colloid can be collected with controlled concentration, sheet thickness, and surface chemistry.
The process can provide control over several features of the nanosheet dispersion, including concentration, sheet thickness, and surface chemistry. These variables affect how the colloid can be used in later formulations or experiments. Such tunability makes the method relevant when a research application requires two-dimensional materials with selected physical or chemical characteristics.
In chemistry, the method provides scalable routes to colloids containing graphene, transition-metal dichalcogenides, and other layered materials. These dispersions can support work on inks, sensors, catalysis, energy storage, and composite materials. Its value lies in combining access to two-dimensional sheets with adjustable dispersion properties suited to different research and materials-development goals.