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Jyoti Mittal - One of the best experts on this subject based on the ideXlab platform.

  • applicability of waste materials bottom ash and deoiled soya as adsorbents for the removal and recovery of a hazardous dye brilliant green
    Journal of Colloid and Interface Science, 2008
    Co-Authors: Alok Mittal, Dipika Kaur, Jyoti Mittal
    Abstract:

    Deoiled soya, an agricultural waste material, and bottom ash, a waste of power plants, have been successfully used for the removal and recovery of the hazardous water-soluble dye brilliant green from water. To remove the dye from water, batch adsorption studies have been carried out by observing the effects of pH, concentration, amounts of adsorbents, size of adsorbent particles, etc. Attempts have also been made to monitor the adsorption process through Langmuir, Freundlich, Tempkin, and D-R adsorption isotherm models. Relevant thermodynamic parameters have also been calculated from these models. The adsorption process has been found endothermic and feasible at all the temperatures. The kinetics of the adsorption was also recorded and indicates pseudo-second-order kinetics in both cases. Kinetic operations also reveal the involvement of a film Diffusion Mechanism for the deoiled soya adsorption at all the temperatures, while bottom ash undergoes through a particle Diffusion Mechanism at only 30 degrees C and at higher temperatures a film Diffusion Mechanism operates. Bulk removal of the dye has been carried out through column studies for both adsorbents. Attempts have also been made to recover the dye from exhausted columns by eluting sulfuric acid of pH 3.

  • applicability of waste materials bottom ash and deoiled soya as adsorbents for the removal and recovery of a hazardous dye brilliant green
    Journal of Colloid and Interface Science, 2008
    Co-Authors: Alok Mittal, Dipika Kaur, Jyoti Mittal
    Abstract:

    Abstract Deoiled soya, an agricultural waste material, and bottom ash, a waste of power plants, have been successfully used for the removal and recovery of the hazardous water-soluble dye brilliant green from water. To remove the dye from water, batch adsorption studies have been carried out by observing the effects of pH, concentration, amounts of adsorbents, size of adsorbent particles, etc. Attempts have also been made to monitor the adsorption process through Langmuir, Freundlich, Tempkin, and D-R adsorption isotherm models. Relevant thermodynamic parameters have also been calculated from these models. The adsorption process has been found endothermic and feasible at all the temperatures. The kinetics of the adsorption was also recorded and indicates pseudo-second-order kinetics in both cases. Kinetic operations also reveal the involvement of a film Diffusion Mechanism for the deoiled soya adsorption at all the temperatures, while bottom ash undergoes through a particle Diffusion Mechanism at only 30 °C and at higher temperatures a film Diffusion Mechanism operates. Bulk removal of the dye has been carried out through column studies for both adsorbents. Attempts have also been made to recover the dye from exhausted columns by eluting sulfuric acid of pH 3.

Farzad Mashayek - One of the best experts on this subject based on the ideXlab platform.

  • lithium Diffusion Mechanism through solid electrolyte interphase in rechargeable lithium batteries
    Journal of Physical Chemistry C, 2019
    Co-Authors: Ajaykrishna Ramasubramanian, Vitaliy Yurkiv, Tara Foroozan, Marco Ragone, Reza Shahbazianyassar, Farzad Mashayek
    Abstract:

    The composition, structure, and the formation Mechanism of the solid–electrolyte interphase (SEI) in lithium-based (e.g., Li-ion and Li metal) batteries have been widely explored in the literature....

  • Lithium Diffusion Mechanism through Solid–Electrolyte Interphase in Rechargeable Lithium Batteries
    2019
    Co-Authors: Ajaykrishna Ramasubramanian, Vitaliy Yurkiv, Tara Foroozan, Marco Ragone, Reza Shahbazian-yassar, Farzad Mashayek
    Abstract:

    The composition, structure, and the formation Mechanism of the solid–electrolyte interphase (SEI) in lithium-based (e.g., Li-ion and Li metal) batteries have been widely explored in the literature. However, very little is known about the ion transport through the SEI. Understanding the underlying ion Diffusion processes across the SEI could lead to a significant progress, enabling the performance increase and improving safety aspects of batteries. Herein, we report the results of first-principles density functional theory calculations on the dominant Diffusion pathways, energetics, and the corresponding Diffusion coefficients associated with Li Diffusion through the polycrystalline SEI. This paper is particularly concerned with the Li Diffusion through the grain boundary (GB) formed between the three major inorganic components of the SEI, such as Li2O, LiF, and Li2CO3. It is found that Li Diffusion occurs through the numerous open channels formed by the GB. The energetics and potential barriers vary significantly depending upon the structure of these channels, with the general trend being that Li Diffusion in the GB is generally faster than in the neighboring crystalline regions within the grain interiors. In addition, the elastic properties of the GB are calculated allowing for more profound understanding of the SEI stability and formation

  • lithium Diffusion Mechanism through solid electrolyte interphase in rechargeable lithium batteries
    The Journal of Physical Chemistry, 2019
    Co-Authors: Ajaykrishna Ramasubramanian, Vitaliy Yurkiv, Tara Foroozan, Marco Ragone, Reza Shahbazianyassar, Farzad Mashayek
    Abstract:

    The composition, structure, and the formation Mechanism of the solid–electrolyte interphase (SEI) in lithium-based (e.g., Li-ion and Li metal) batteries have been widely explored in the literature. However, very little is known about the ion transport through the SEI. Understanding the underlying ion Diffusion processes across the SEI could lead to a significant progress, enabling the performance increase and improving safety aspects of batteries. Herein, we report the results of first-principles density functional theory calculations on the dominant Diffusion pathways, energetics, and the corresponding Diffusion coefficients associated with Li Diffusion through the polycrystalline SEI. This paper is particularly concerned with the Li Diffusion through the grain boundary (GB) formed between the three major inorganic components of the SEI, such as Li₂O, LiF, and Li₂CO₃. It is found that Li Diffusion occurs through the numerous open channels formed by the GB. The energetics and potential barriers vary significantly depending upon the structure of these channels, with the general trend being that Li Diffusion in the GB is generally faster than in the neighboring crystalline regions within the grain interiors. In addition, the elastic properties of the GB are calculated allowing for more profound understanding of the SEI stability and formation.

Alok Mittal - One of the best experts on this subject based on the ideXlab platform.

  • applicability of waste materials bottom ash and deoiled soya as adsorbents for the removal and recovery of a hazardous dye brilliant green
    Journal of Colloid and Interface Science, 2008
    Co-Authors: Alok Mittal, Dipika Kaur, Jyoti Mittal
    Abstract:

    Deoiled soya, an agricultural waste material, and bottom ash, a waste of power plants, have been successfully used for the removal and recovery of the hazardous water-soluble dye brilliant green from water. To remove the dye from water, batch adsorption studies have been carried out by observing the effects of pH, concentration, amounts of adsorbents, size of adsorbent particles, etc. Attempts have also been made to monitor the adsorption process through Langmuir, Freundlich, Tempkin, and D-R adsorption isotherm models. Relevant thermodynamic parameters have also been calculated from these models. The adsorption process has been found endothermic and feasible at all the temperatures. The kinetics of the adsorption was also recorded and indicates pseudo-second-order kinetics in both cases. Kinetic operations also reveal the involvement of a film Diffusion Mechanism for the deoiled soya adsorption at all the temperatures, while bottom ash undergoes through a particle Diffusion Mechanism at only 30 degrees C and at higher temperatures a film Diffusion Mechanism operates. Bulk removal of the dye has been carried out through column studies for both adsorbents. Attempts have also been made to recover the dye from exhausted columns by eluting sulfuric acid of pH 3.

  • applicability of waste materials bottom ash and deoiled soya as adsorbents for the removal and recovery of a hazardous dye brilliant green
    Journal of Colloid and Interface Science, 2008
    Co-Authors: Alok Mittal, Dipika Kaur, Jyoti Mittal
    Abstract:

    Abstract Deoiled soya, an agricultural waste material, and bottom ash, a waste of power plants, have been successfully used for the removal and recovery of the hazardous water-soluble dye brilliant green from water. To remove the dye from water, batch adsorption studies have been carried out by observing the effects of pH, concentration, amounts of adsorbents, size of adsorbent particles, etc. Attempts have also been made to monitor the adsorption process through Langmuir, Freundlich, Tempkin, and D-R adsorption isotherm models. Relevant thermodynamic parameters have also been calculated from these models. The adsorption process has been found endothermic and feasible at all the temperatures. The kinetics of the adsorption was also recorded and indicates pseudo-second-order kinetics in both cases. Kinetic operations also reveal the involvement of a film Diffusion Mechanism for the deoiled soya adsorption at all the temperatures, while bottom ash undergoes through a particle Diffusion Mechanism at only 30 °C and at higher temperatures a film Diffusion Mechanism operates. Bulk removal of the dye has been carried out through column studies for both adsorbents. Attempts have also been made to recover the dye from exhausted columns by eluting sulfuric acid of pH 3.

Fatemeh Maleky - One of the best experts on this subject based on the ideXlab platform.

  • correction analysis of moisture Diffusion Mechanism in structured lipids using magnetic resonance imaging
    RSC Advances, 2017
    Co-Authors: Sravanti Paluri, Mohammed Shavezipur, Dennis R. Heldman, Fatemeh Maleky
    Abstract:

    Correction for ‘Analysis of moisture Diffusion Mechanism in structured lipids using magnetic resonance imaging’ by Sravanti Paluri et al., RSC Adv., 2015, 5, 76904–76911.

  • analysis of moisture Diffusion Mechanism in structured lipids using magnetic resonance imaging
    RSC Advances, 2015
    Co-Authors: Sravanti Paluri, Mohammed Shavezipur, Dennis R. Heldman, Fatemeh Maleky
    Abstract:

    The Mechanism of moisture migration from a high moisture gel-layer to an adjacent lipid layer was characterized. Three lipid samples: cocoa butter (CB), palm kernel oil (PO) and 20% (w/w) cocoa powder in palm kernel oil (CPPO) were prepared by two methods, shearing during crystallization and static crystallization. Using Magnetic Resonance Imaging, samples' moisture uptake at a storage temperature of 20 °C was measured for 91 days and their effective diffusivity values were calculated. It was found that shearing reduces effective diffusivity of moisture in samples, thereby increasing their moisture-barrier capacity compared to unprocessed lipid systems. The Mechanism of moisture migration was found to be a combination of Fickian Diffusion and relaxation of lipid matrix in the statically crystallized cocoa butter samples, whereas Fickian Diffusion was the dominant Mechanism in sheared cocoa butter samples. Palm kernel oil samples exhibited a combination of Fickian and relaxation Mechanisms, regardless of the processing technique. Whereas the mixture of palm kernel oil and cocoa powder samples showed relaxation-Mechanism controlled migration due to the presence of hydrophilic cocoa powder particles.

Ajaykrishna Ramasubramanian - One of the best experts on this subject based on the ideXlab platform.

  • lithium Diffusion Mechanism through solid electrolyte interphase in rechargeable lithium batteries
    Journal of Physical Chemistry C, 2019
    Co-Authors: Ajaykrishna Ramasubramanian, Vitaliy Yurkiv, Tara Foroozan, Marco Ragone, Reza Shahbazianyassar, Farzad Mashayek
    Abstract:

    The composition, structure, and the formation Mechanism of the solid–electrolyte interphase (SEI) in lithium-based (e.g., Li-ion and Li metal) batteries have been widely explored in the literature....

  • Lithium Diffusion Mechanism through Solid–Electrolyte Interphase in Rechargeable Lithium Batteries
    2019
    Co-Authors: Ajaykrishna Ramasubramanian, Vitaliy Yurkiv, Tara Foroozan, Marco Ragone, Reza Shahbazian-yassar, Farzad Mashayek
    Abstract:

    The composition, structure, and the formation Mechanism of the solid–electrolyte interphase (SEI) in lithium-based (e.g., Li-ion and Li metal) batteries have been widely explored in the literature. However, very little is known about the ion transport through the SEI. Understanding the underlying ion Diffusion processes across the SEI could lead to a significant progress, enabling the performance increase and improving safety aspects of batteries. Herein, we report the results of first-principles density functional theory calculations on the dominant Diffusion pathways, energetics, and the corresponding Diffusion coefficients associated with Li Diffusion through the polycrystalline SEI. This paper is particularly concerned with the Li Diffusion through the grain boundary (GB) formed between the three major inorganic components of the SEI, such as Li2O, LiF, and Li2CO3. It is found that Li Diffusion occurs through the numerous open channels formed by the GB. The energetics and potential barriers vary significantly depending upon the structure of these channels, with the general trend being that Li Diffusion in the GB is generally faster than in the neighboring crystalline regions within the grain interiors. In addition, the elastic properties of the GB are calculated allowing for more profound understanding of the SEI stability and formation

  • lithium Diffusion Mechanism through solid electrolyte interphase in rechargeable lithium batteries
    The Journal of Physical Chemistry, 2019
    Co-Authors: Ajaykrishna Ramasubramanian, Vitaliy Yurkiv, Tara Foroozan, Marco Ragone, Reza Shahbazianyassar, Farzad Mashayek
    Abstract:

    The composition, structure, and the formation Mechanism of the solid–electrolyte interphase (SEI) in lithium-based (e.g., Li-ion and Li metal) batteries have been widely explored in the literature. However, very little is known about the ion transport through the SEI. Understanding the underlying ion Diffusion processes across the SEI could lead to a significant progress, enabling the performance increase and improving safety aspects of batteries. Herein, we report the results of first-principles density functional theory calculations on the dominant Diffusion pathways, energetics, and the corresponding Diffusion coefficients associated with Li Diffusion through the polycrystalline SEI. This paper is particularly concerned with the Li Diffusion through the grain boundary (GB) formed between the three major inorganic components of the SEI, such as Li₂O, LiF, and Li₂CO₃. It is found that Li Diffusion occurs through the numerous open channels formed by the GB. The energetics and potential barriers vary significantly depending upon the structure of these channels, with the general trend being that Li Diffusion in the GB is generally faster than in the neighboring crystalline regions within the grain interiors. In addition, the elastic properties of the GB are calculated allowing for more profound understanding of the SEI stability and formation.