Co-impregnation Method
Co-impregnation Method - Related Videos
08:01
Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide
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Cited by 4 •
2019
In this work, we prepared an adsorbent composed of the cationic N,N-dimethylamino propylacrylamide methyl chloride quaternary (DMAPAAQ) polymer gel and iron hydroxide for adsorbing arsenic from groundwater. The gel was prepared via a novel method designed to ensure the maximum content of iron particles in its structure.
08:00
A Synthetic Methodology for Preparing Impregnated and Grafted Amine-Based Silica Composites for Carbon Capture
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Cited by 5 •
2023
This work aims to facilitate the development of standardized techniques for impregnating or grafting aminated compounds onto silica substrates, which are often broadly described in the literature. Specific amounts of solvent, substrate, amines, and the values of other important experimental parameters will be discussed in detail.
06:26
Experimental Implementation of a New Composite Fabrication Method: Exposing Bare Fibers on the Composite Surface by the Soft Layer Method
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Cited by 3 •
2017
A protocol to expose bare fibers on the composite surface by eliminating resin rich area is presented. The fibers are exposed during fabrication of the composites, not by the post surface treatment. The exposed carbon composites exhibit high electrical conductivity in the through-thickness direction and high mechanical property.
09:44
Assessment of Hippocampal Dendritic Complexity in Aged Mice Using the Golgi-Cox Method
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Cited by 18 •
2017
Here we present a Golgi-Cox protocol in extensive detail. This reliable tissue stain method allows for a high-quality assessment of the cytoarchitecture in the hippocampus, and throughout the entire brain, with minimal troubleshooting.
10:26
Imaging Neurons within Thick Brain Sections Using the Golgi-Cox Method
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Cited by 10 •
2017
We present a protocol for using the Golgi-Cox staining method in thick brain sections, in order to visualize neurons with long dendritic trees contained within single tissue samples. Two variants of this protocol are also presented that involve cresyl violet counterstaining, and the freezing of unprocessed brains for long-term storage.
FAQs
Capillary action draws the precursor solution into the support’s pores, while pore diffusion helps distribute the dissolved components through the internal structure. This transport determines how uniformly the selected precursors contact the porous solid. More effective distribution can promote better component mixing and influence the dispersion of the active phases formed during later treatment.
Drying removes the solvent after the precursor solution has entered the support, leaving the chemical components within the porous structure. Subsequent thermal treatment can convert those precursors into the desired active phases. Together, these stages influence phase formation and the distribution of the resulting components, which can affect the properties and performance of the composite material.
The selected precursor composition, the structure of the porous support, and the conditions used for drying and thermal treatment all influence the result. These factors affect how the components distribute through the pores, how well they mix, which phases form, and how the final material performs. Controlling them helps produce a composite with the intended composition.
Simultaneous introduction places the selected chemical components in contact with the support during the same impregnation step. This can improve their mixing within the porous structure and simplify the synthesis compared with handling each component in separate preparation stages. The resulting distribution may also influence dispersion, phase formation, and the performance of materials made for chemical applications.
A typical preparation begins by making a solution containing the selected precursors and contacting it with a porous solid or support. Capillary action and pore diffusion distribute the solution through the structure. The impregnated support is then dried, and thermal treatment may follow to convert the retained precursors into the desired active phases.
The essential materials are a porous solid or support and a solution containing two or more selected chemical precursors. The support must contact the solution long enough for the components to enter and distribute through its pores. Drying is then required, and thermal treatment may be applied when conversion to active phases is desired.
Chemists use this approach when they need to prepare composite materials containing multiple components on or within a porous support. Its documented applications include supported catalysts, adsorbents, and other functional materials. It is particularly relevant when composition, component mixing, dispersion, or phase formation must be controlled to influence the material’s resulting behavior.
The final composite can be evaluated through its component distribution, dispersion, phase formation, and overall composition. These features indicate how effectively the precursors were introduced and converted within the porous support. For supported catalysts, the preparation is especially relevant because those structural outcomes can influence catalytic performance, while related materials may serve as adsorbents or functional solids.