The Experts below are selected from a list of 297 Experts worldwide ranked by ideXlab platform
Yury Gogotsi - One of the best experts on this subject based on the ideXlab platform.
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dispersions of two dimensional titanium carbide mxene in Organic Solvents
Chemistry of Materials, 2017Co-Authors: Kathleen Maleski, Vadym N. Mochalin, Yury GogotsiAbstract:Two-dimensional titanium carbide (Ti3C2Tx) MXene has attracted a great deal of attention in the research community and has already showed promise in numerous applications, but only its dispersions in aqueous solutions have previously been available. Here we show that Ti3C2Tx can be dispersed in many polar Organic Solvents, but the best dispersions were achieved in N,N-dimethylformamide, N-methyl-2-pyrrolidone, dimethyl sulfoxide, propylene carbonate, and ethanol. The dispersions were examined by measuring the concentration and absorbance spectra of MXene in Organic Solvents as well as correlating the concentration to solvent physical properties, such as surface tension, boiling point, and polarity index. Hildebrand and Hansen solubility parameters were additionally used to provide an initial understanding of how Ti3C2Tx MXene behaves in Organic media and potentially develop quantitative correlations to select Solvents and their combinations that can disperse Ti3C2Tx and other MXenes. Using this analysis, ...
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Dispersions of Two-Dimensional Titanium Carbide MXene in Organic Solvents
Chemistry of Materials, 2017Co-Authors: Kathleen Maleski, Vadym N. Mochalin, Yury GogotsiAbstract:© 2017 American Chemical Society. Two-dimensional titanium carbide (Ti 3 C 2 T x ) MXene has attracted a great deal of attention in the research community and has already showed promise in numerous applications, but only its dispersions in aqueous solutions have previously been available. Here we show that Ti 3 C 2 T x can be dispersed in many polar Organic Solvents, but the best dispersions were achieved in N,N-dimethylformamide, N-methyl-2-pyrrolidone, dimethyl sulfoxide, propylene carbonate, and ethanol. The dispersions were examined by measuring the concentration and absorbance spectra of MXene in Organic Solvents as well as correlating the concentration to solvent physical properties, such as surface tension, boiling point, and polarity index. Hildebrand and Hansen solubility parameters were additionally used to provide an initial understanding of how Ti 3 C 2 T x MXene behaves in Organic media and potentially develop quantitative correlations to select Solvents and their combinations that can disperse Ti 3 C 2 T x and other MXenes. Using this analysis, we have outlined a range of Organic Solvents, which can disperse Ti 3 C 2 T x , expanding the opportunities for processing techniques, such as mixing MXenes with other nanomaterials or polymers to form composites, preparing inks for printing, and deposition requiring solution processable materials, allowing the use of Ti 3 C 2 T x in a multitude of applications.
Kathleen Maleski - One of the best experts on this subject based on the ideXlab platform.
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dispersions of two dimensional titanium carbide mxene in Organic Solvents
Chemistry of Materials, 2017Co-Authors: Kathleen Maleski, Vadym N. Mochalin, Yury GogotsiAbstract:Two-dimensional titanium carbide (Ti3C2Tx) MXene has attracted a great deal of attention in the research community and has already showed promise in numerous applications, but only its dispersions in aqueous solutions have previously been available. Here we show that Ti3C2Tx can be dispersed in many polar Organic Solvents, but the best dispersions were achieved in N,N-dimethylformamide, N-methyl-2-pyrrolidone, dimethyl sulfoxide, propylene carbonate, and ethanol. The dispersions were examined by measuring the concentration and absorbance spectra of MXene in Organic Solvents as well as correlating the concentration to solvent physical properties, such as surface tension, boiling point, and polarity index. Hildebrand and Hansen solubility parameters were additionally used to provide an initial understanding of how Ti3C2Tx MXene behaves in Organic media and potentially develop quantitative correlations to select Solvents and their combinations that can disperse Ti3C2Tx and other MXenes. Using this analysis, ...
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Dispersions of Two-Dimensional Titanium Carbide MXene in Organic Solvents
Chemistry of Materials, 2017Co-Authors: Kathleen Maleski, Vadym N. Mochalin, Yury GogotsiAbstract:© 2017 American Chemical Society. Two-dimensional titanium carbide (Ti 3 C 2 T x ) MXene has attracted a great deal of attention in the research community and has already showed promise in numerous applications, but only its dispersions in aqueous solutions have previously been available. Here we show that Ti 3 C 2 T x can be dispersed in many polar Organic Solvents, but the best dispersions were achieved in N,N-dimethylformamide, N-methyl-2-pyrrolidone, dimethyl sulfoxide, propylene carbonate, and ethanol. The dispersions were examined by measuring the concentration and absorbance spectra of MXene in Organic Solvents as well as correlating the concentration to solvent physical properties, such as surface tension, boiling point, and polarity index. Hildebrand and Hansen solubility parameters were additionally used to provide an initial understanding of how Ti 3 C 2 T x MXene behaves in Organic media and potentially develop quantitative correlations to select Solvents and their combinations that can disperse Ti 3 C 2 T x and other MXenes. Using this analysis, we have outlined a range of Organic Solvents, which can disperse Ti 3 C 2 T x , expanding the opportunities for processing techniques, such as mixing MXenes with other nanomaterials or polymers to form composites, preparing inks for printing, and deposition requiring solution processable materials, allowing the use of Ti 3 C 2 T x in a multitude of applications.
Vadym N. Mochalin - One of the best experts on this subject based on the ideXlab platform.
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dispersions of two dimensional titanium carbide mxene in Organic Solvents
Chemistry of Materials, 2017Co-Authors: Kathleen Maleski, Vadym N. Mochalin, Yury GogotsiAbstract:Two-dimensional titanium carbide (Ti3C2Tx) MXene has attracted a great deal of attention in the research community and has already showed promise in numerous applications, but only its dispersions in aqueous solutions have previously been available. Here we show that Ti3C2Tx can be dispersed in many polar Organic Solvents, but the best dispersions were achieved in N,N-dimethylformamide, N-methyl-2-pyrrolidone, dimethyl sulfoxide, propylene carbonate, and ethanol. The dispersions were examined by measuring the concentration and absorbance spectra of MXene in Organic Solvents as well as correlating the concentration to solvent physical properties, such as surface tension, boiling point, and polarity index. Hildebrand and Hansen solubility parameters were additionally used to provide an initial understanding of how Ti3C2Tx MXene behaves in Organic media and potentially develop quantitative correlations to select Solvents and their combinations that can disperse Ti3C2Tx and other MXenes. Using this analysis, ...
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Dispersions of Two-Dimensional Titanium Carbide MXene in Organic Solvents
Chemistry of Materials, 2017Co-Authors: Kathleen Maleski, Vadym N. Mochalin, Yury GogotsiAbstract:© 2017 American Chemical Society. Two-dimensional titanium carbide (Ti 3 C 2 T x ) MXene has attracted a great deal of attention in the research community and has already showed promise in numerous applications, but only its dispersions in aqueous solutions have previously been available. Here we show that Ti 3 C 2 T x can be dispersed in many polar Organic Solvents, but the best dispersions were achieved in N,N-dimethylformamide, N-methyl-2-pyrrolidone, dimethyl sulfoxide, propylene carbonate, and ethanol. The dispersions were examined by measuring the concentration and absorbance spectra of MXene in Organic Solvents as well as correlating the concentration to solvent physical properties, such as surface tension, boiling point, and polarity index. Hildebrand and Hansen solubility parameters were additionally used to provide an initial understanding of how Ti 3 C 2 T x MXene behaves in Organic media and potentially develop quantitative correlations to select Solvents and their combinations that can disperse Ti 3 C 2 T x and other MXenes. Using this analysis, we have outlined a range of Organic Solvents, which can disperse Ti 3 C 2 T x , expanding the opportunities for processing techniques, such as mixing MXenes with other nanomaterials or polymers to form composites, preparing inks for printing, and deposition requiring solution processable materials, allowing the use of Ti 3 C 2 T x in a multitude of applications.
Sukkyu Chang - One of the best experts on this subject based on the ideXlab platform.
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signaling of water content in Organic Solvents by solvatochromism of a hydroxynaphthalimide based merocyanine dye
Dyes and Pigments, 2015Co-Authors: Hyunji Park, Sukkyu ChangAbstract:Abstract Determining the water content in Organic Solvents has attracted much research interest in view of its importance in various chemical processes. We investigated the signaling behavior of a benzothiazolium appended 4-hydroxynaphthalimide derivative 1 for the water content in water-miscible Organic Solvents such as tetrahydrofuran, acetone, dimethyl sulfoxide, acetonitrile, ethanol, and methanol using UV–vis and fluorescence spectroscopy. Probe 1 showed pronounced negative solvatochromism in common Organic Solvents and revealed excellent correlation between the 1/ λ max value and Reichardt's E T (30) parameter. The response to the changes in water content in the surveyed Organic Solvents could be analyzed using a ratiometric approach. The dependence of the absorption maximum ( λ max ) on the changes in water content was also useful as a calibration plot. The fluorescence signaling behavior was less pronounced than that of the UV–vis signaling, but was still usable.
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negative solvatochromism of merocyanine dyes application as water content probes for Organic Solvents
Sensors and Actuators B-chemical, 2011Co-Authors: Myung Gil Choi, Hye Rim Jeon, Sukkyu ChangAbstract:Abstract Two new merocyanine dyes derived from 7-hydroxycoumarin were prepared, and their signaling ability to detect water content in Organic Solvents was investigated. The dyes exhibited a pronounced negative solvatochromism, and dramatic changes in absorption spectra and λmax as a function of water content were observed. Solvatochromic behavior was pronounced in regions of less than 5% water content; therefore, these dyes could be used as chromogenic probes for detecting water in common water miscible Organic Solvents.
J M D Tascon - One of the best experts on this subject based on the ideXlab platform.
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graphene oxide dispersions in Organic Solvents
Langmuir, 2008Co-Authors: J I Paredes, S Villarrodil, A Martinezalonso, J M D TasconAbstract:The dispersion behavior of graphene oxide in different Organic Solvents has been investigated. As-prepared graphite oxide could be dispersed in N,N-dimethylformamide, N-methyl-2-pyrrolidone, tetrahydrofuran, and ethylene glycol. In all of these Solvents, full exfoliation of the graphite oxide material into individual, single-layer graphene oxide sheets was achieved by sonication. The graphene oxide dispersions exhibited long-term stability and were made of sheets between a few hundred nanometers and a few micrometers large, similar to the case of graphene oxide dispersions in water. These results should facilitate the manipulation and processing of graphene-based materials for different applications.
