The Experts below are selected from a list of 114000 Experts worldwide ranked by ideXlab platform
K. Turlybekuly - One of the best experts on this subject based on the ideXlab platform.
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Temperature dependence of the probability of "small heating" and total losses of ucns on the Surface of fomblin oils of different molecular mass.
arXiv: Instrumentation and Detectors, 2019Co-Authors: S. M. Cherniavsky, E. V. Lychagin, A. Yu. Muzychka, G. V. Nekhaev, Valery V. Nesvizhevsky, A. V. Strelkov, Serge Reynaud, K. TurlybekulyAbstract:We measured the temperature dependence of the probability of small heating and total losses of UCNs on the PFPE Fomblin Y Surface with various molecular masses Mw=2800, 3300, 6500 amu in the temperature range of 100-300 K. The probability of small heating sharply decreases with increasing Mw and decreasing temperature. The probability of total loss weakly decreases with decreasing temperature and takes the minimum value at Mw=3300 amu. As this oil provides a Homogeneous Surface with minimal probabilities of small heating and total losses of UCNs, it is the preferred candidate for experiments on measuring the neutron lifetime.
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temperature dependence of the probability of small heating and total losses of ucns on the Surface of fomblin oils of different molecular mass
European Physical Journal C, 2019Co-Authors: S. M. Cherniavsky, E. V. Lychagin, G. V. Nekhaev, Valery V. Nesvizhevsky, A. V. Strelkov, Serge Reynaud, Yu A Muzychka, K. TurlybekulyAbstract:We measured the temperature dependence of the probability of small heating and total losses of UCNs on the PFPE Fomblin Y Surface with various molecular mass $$M_{{\bar{W}}}$$ (2800, 3300, 6500 amu) in the temperature range of 100–300 K. The probability of small heating sharply decreases with increasing $$M_{{\bar{W}}}$$ and decreasing temperature. The probability of total loss weakly decreases with decreasing temperature and takes the minimum value at $$M_{{\bar{W}}} =3300 \, \hbox {amu}$$ . As this oil provides a Homogeneous Surface with minimal probabilities of small heating and total losses of UCNs, it is the preferred candidate for experiments on measuring the neutron lifetime.
Gordon Mckay - One of the best experts on this subject based on the ideXlab platform.
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ion exchange Homogeneous Surface diffusion modelling by binary site resin for the removal of nickel ions from wastewater in fixed beds
Chemical Engineering Journal, 2019Co-Authors: Ahmad Abushaikha, S J Allen, Gordon MckayAbstract:Abstract The presence of toxic heavy metals in wastewater is a continuing threat to both the environment and living organisms. The present study investigates the ion-exchange potential of a dual-exchanged (Na+/H+) chelating resin to remove nickel ions from wastewater in a fixed bed column ion exchanger. The resin contains iminodiacetic acid (IDA) functional groups that can lead to the capture of heavy metal ions, provided that the pH condition and ratio of Na+: H+ are appropriate. Too much Na+ results in precipitation of nickel hydroxide, resulting in clogging of the ion exchange columns, while too much H+ in the solution leads to competitive protonation, reducing the uptake of Ni2+ ions. The experimental work has been supported by modelling results using a new film-Homogeneous Surface diffusion model (HSDM) to simulate the fixed bed breakthrough curves for the two exchange processes – assigned 1 and 2. The best fit model simulation curves were obtained by optimizing the overall external diffusion mass transfer coefficient kf (=5.41 × 10−3 cms−1), the Surface diffusivity Ds (Ds1 = 224 × 10−7cm2s−1 for 2Na+/Ni2+ exchange; and, Ds2 = 3.60 × 10−10 cm2s−1 for 2H+/Ni2+ exchange) and the equilibrium constant KRP (KRP1 = 351 dm3/g for 2Na+/Ni2+ exchange; and KRP2 = 781 dm3/g for 2H+/Ni2+ exchange) until a good fit was obtained between the model and experimental data. Optimisation was achieved by employing the downhill simplex method and performing a multidimensional minimization of the objective function, i.e. minimizing the SSE between the experimental data and the model prediction.
Makvandi Ardavan - One of the best experts on this subject based on the ideXlab platform.
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A microwave-based one-pot process for Homogeneous Surface coating: improved electrochemical performance of Li(Ni1/3Mn1/3Co1/3)O2 with a nano-scaled ZnO:Al layer
'Wiley', 2021Co-Authors: Wolff Michael, Lobe Sandra, Dellen Christian, Uhlenbruck Sven, Ribeiro Caue, Guichard, Xavier H., Niederberger Markus, Makvandi Ardavan, Peterlechner Martin, Wilde GerhardAbstract:In this article, a versatile process based on microwave-assisted sol–gel synthesis is introduced in order to apply a Surface coating on cathode material for lithium-ion batteries. Here, a nano-scaled ZnO:Al (AZO) layer is coated Homogeneously onto Li(Ni1/3Mn1/3Co1/3)O2 (NMC111) powder at temperatures below 210°C within a few minutes. In contrast to other wet-chemical coating techniques, the method described here is conducted in a one-pot reaction and does not require a post-annealing step at elevated temperatures. Investigations via high resolution transmission electron microscopy (HR-TEM), scanning transmission electron microscopy (STEM) and inductively-coupled plasma optical emission spectroscopy (ICP-OES) promote a thorough understanding of coating microstructure and quality in dependence of reaction temperature, duration and precursor concentration. The AZO protective coating on NMC111 significantly reduces capacity fading during cycling in the voltage range of 3.0-4.5 V. Furthermore, applying optimal quantities of the coating agent on NMC111 lead to enhanced specific capacities compared to the uncoated material
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A microwave‐based one‐pot process for Homogeneous Surface coating: improved electrochemical performance of Li(Ni1/3Mn1/3Co1/3)O2 with a nano‐scaled ZnO:Al layer
'Wiley', 2021Co-Authors: Wolff Michael, Lobe Sandra, Dellen Christian, Uhlenbruck Sven, Ribeiro Caue, Guichard, Xavier H., Niederberger Markus, Fattakhova‐rohlfing Dina, Guillon Olivier, Makvandi ArdavanAbstract:In this article, a versatile process based on microwave-assisted sol-gel synthesis is introduced in order to apply a Surface coating on cathode material for lithium-ion batteries. Here, a nano-scaled ZnO:Al (AZO) layer is coated Homogeneously onto Li(Ni1/3Mn1/3Co1/3)O2 (NMC111) powder at temperatures below 210 °C within a few minutes. In contrast to other wet-chemical coating techniques, the method described here is conducted in a one-pot reaction and does not require a post-annealing step at elevated temperatures. Investigations via high resolution transmission electron microscopy (HR-TEM), scanning transmission electron microscopy (STEM) and inductively-coupled plasma optical emission spectroscopy (ICP-OES) promote a thorough understanding of coating microstructure and quality in dependence of reaction temperature, duration and precursor concentration. The AZO protective coating on NMC111 significantly reduce capacity fading during cycling in the voltage range of 3.0 – 4.5 V. Furthermore, applying optimal quantities of the coating agent on NMC111 lead to enhanced specific capacities compared to the uncoated material
Wolff Michael - One of the best experts on this subject based on the ideXlab platform.
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A microwave-based one-pot process for Homogeneous Surface coating: improved electrochemical performance of Li(Ni1/3Mn1/3Co1/3)O2 with a nano-scaled ZnO:Al layer
'Wiley', 2021Co-Authors: Wolff Michael, Lobe Sandra, Dellen Christian, Uhlenbruck Sven, Ribeiro Caue, Guichard, Xavier H., Niederberger Markus, Makvandi Ardavan, Peterlechner Martin, Wilde GerhardAbstract:In this article, a versatile process based on microwave-assisted sol–gel synthesis is introduced in order to apply a Surface coating on cathode material for lithium-ion batteries. Here, a nano-scaled ZnO:Al (AZO) layer is coated Homogeneously onto Li(Ni1/3Mn1/3Co1/3)O2 (NMC111) powder at temperatures below 210°C within a few minutes. In contrast to other wet-chemical coating techniques, the method described here is conducted in a one-pot reaction and does not require a post-annealing step at elevated temperatures. Investigations via high resolution transmission electron microscopy (HR-TEM), scanning transmission electron microscopy (STEM) and inductively-coupled plasma optical emission spectroscopy (ICP-OES) promote a thorough understanding of coating microstructure and quality in dependence of reaction temperature, duration and precursor concentration. The AZO protective coating on NMC111 significantly reduces capacity fading during cycling in the voltage range of 3.0-4.5 V. Furthermore, applying optimal quantities of the coating agent on NMC111 lead to enhanced specific capacities compared to the uncoated material
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A microwave‐based one‐pot process for Homogeneous Surface coating: improved electrochemical performance of Li(Ni1/3Mn1/3Co1/3)O2 with a nano‐scaled ZnO:Al layer
'Wiley', 2021Co-Authors: Wolff Michael, Lobe Sandra, Dellen Christian, Uhlenbruck Sven, Ribeiro Caue, Guichard, Xavier H., Niederberger Markus, Fattakhova‐rohlfing Dina, Guillon Olivier, Makvandi ArdavanAbstract:In this article, a versatile process based on microwave-assisted sol-gel synthesis is introduced in order to apply a Surface coating on cathode material for lithium-ion batteries. Here, a nano-scaled ZnO:Al (AZO) layer is coated Homogeneously onto Li(Ni1/3Mn1/3Co1/3)O2 (NMC111) powder at temperatures below 210 °C within a few minutes. In contrast to other wet-chemical coating techniques, the method described here is conducted in a one-pot reaction and does not require a post-annealing step at elevated temperatures. Investigations via high resolution transmission electron microscopy (HR-TEM), scanning transmission electron microscopy (STEM) and inductively-coupled plasma optical emission spectroscopy (ICP-OES) promote a thorough understanding of coating microstructure and quality in dependence of reaction temperature, duration and precursor concentration. The AZO protective coating on NMC111 significantly reduce capacity fading during cycling in the voltage range of 3.0 – 4.5 V. Furthermore, applying optimal quantities of the coating agent on NMC111 lead to enhanced specific capacities compared to the uncoated material
S. M. Cherniavsky - One of the best experts on this subject based on the ideXlab platform.
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Temperature dependence of the probability of "small heating" and total losses of ucns on the Surface of fomblin oils of different molecular mass.
arXiv: Instrumentation and Detectors, 2019Co-Authors: S. M. Cherniavsky, E. V. Lychagin, A. Yu. Muzychka, G. V. Nekhaev, Valery V. Nesvizhevsky, A. V. Strelkov, Serge Reynaud, K. TurlybekulyAbstract:We measured the temperature dependence of the probability of small heating and total losses of UCNs on the PFPE Fomblin Y Surface with various molecular masses Mw=2800, 3300, 6500 amu in the temperature range of 100-300 K. The probability of small heating sharply decreases with increasing Mw and decreasing temperature. The probability of total loss weakly decreases with decreasing temperature and takes the minimum value at Mw=3300 amu. As this oil provides a Homogeneous Surface with minimal probabilities of small heating and total losses of UCNs, it is the preferred candidate for experiments on measuring the neutron lifetime.
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temperature dependence of the probability of small heating and total losses of ucns on the Surface of fomblin oils of different molecular mass
European Physical Journal C, 2019Co-Authors: S. M. Cherniavsky, E. V. Lychagin, G. V. Nekhaev, Valery V. Nesvizhevsky, A. V. Strelkov, Serge Reynaud, Yu A Muzychka, K. TurlybekulyAbstract:We measured the temperature dependence of the probability of small heating and total losses of UCNs on the PFPE Fomblin Y Surface with various molecular mass $$M_{{\bar{W}}}$$ (2800, 3300, 6500 amu) in the temperature range of 100–300 K. The probability of small heating sharply decreases with increasing $$M_{{\bar{W}}}$$ and decreasing temperature. The probability of total loss weakly decreases with decreasing temperature and takes the minimum value at $$M_{{\bar{W}}} =3300 \, \hbox {amu}$$ . As this oil provides a Homogeneous Surface with minimal probabilities of small heating and total losses of UCNs, it is the preferred candidate for experiments on measuring the neutron lifetime.