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Search Publications by

Antonio Faraone (Fed)

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Displaying 1 - 25 of 51

Quantifying and Suppressing Proton Intercalation to Enable High-Voltage Zn-Ion Batteries

November 4, 2021
Fei Wang, Lauren E. Blanc, Qin Li, Antonio Faraone, Xiao Ji, Huaiyu H. Chen-Mayer, Rick L. Paul, Joseph Dura, Enyuan Hu, Kang Xu, Linda F. Nazar, Chunsheng Wang
We explore the Zn-ion intercalation mechanisms/interfacial dynamics of VPO4F and quantify the water dynamics in water-in-salt (WISE) and hybrid aqueous-non aqueous electrolytes (HANEs). We demonstrate that H+ intercalation dominates electrochemical

Atomic Dynamics of Metallic Glass Melts La 50 Ni 15 Al 35 and Ce 70 Cu 19 Al 11 Studied by Quasielastic Neutron Scattering

June 23, 2021
Peng Luo, Abhishek Jaiswal, Zhikun Cai, Nathan P. Walter, Long Zhou, Dawei Ding, Ming Liu, Rebecca Mills, Andrey Podlesynak, Georg Ehlers, Antonio Faraone, Haiyang Bai, Weihua Wang, Y. Z.
By employing quasi-elastic neutron scattering, we studied the atomic-scale relaxation dynamics and transport mechanism of La50Ni15Al35 and Ce69Cu20Al10Nb1 Studied by Quasi-Elastic Neutron Scattering metallic glass melts in the temperature range of over 200

Entangled Polymer Dynamics in Attractive Nanocomposite Melts

June 23, 2020
Erkan Senses, Saeid Darvishi, Madhu Sudan Tyagi, Antonio Faraone
We investigate single chain dynamics of an entangled linear poly (ethylene oxide) melt in presence of well-dispersed attractive nanoparticles using high resolution neutron spectroscopy at particle volume fractions as high as 0.53. The short time dynamics

Polymer Dynamics in Block Copolymer Electrolytes Detected by Neutron Spin Echo

May 19, 2020
Whitney S. Loo, Antonio Faraone, Lorena S. Grundy, Kevin W. Gao, Nitash P. Balsara
Polymer chain dynamics of a nanostructured block copolymer electrolyte are investigated by neutron spin-echo spectroscopy. Monomeric friction, determined by fitting the short-time data to the Rouse model, increases with increasing salt concentration. Tube

Dynamic Equivalence between Soft Star Polymers and Hard Spheres

November 19, 2019
Zhe Wang, Antonio Faraone, Panchao Yin, Lionel Porcar, Yun Liu, Changwoo Do, Kunlun Hong, Wei-Ren Chen
We measure a series of star polymer dispersions to study the dynamics of soft colloidal liquids. We find that as the concentration increases, the slowing of the long-time self-diffusivity of the star polymer, normalized by the short-time self-diffusivity

Disentangling Polymer Network and Hydration Water Dynamics in Polyhydroxyethyl Methacrylate Physical and Chemical Hydrogels

August 8, 2019
Daria Noferini, Antonio Faraone, Marta Rossi, Eugene Mamontov, Emiliano Fratini, Piero Baglioni
Cross-linker nature and water content may impact the microscopic dynamics of hydrogels components, and thus their properties in applications such as drug-delivery. To investigate this aspect, we used quasi-elastic neutron scattering with contrast variation

Low-Temperature Rotational Tunneling of Tetrahydroborate Anions in Lithium Benzimidazolate-Borohydride Li 2 (blm)BH 4

August 7, 2019
Alexander V. Skripov, Mirjana NMN Dimitrievska, Olga A. Babanova, R. V. Skoryunov, Alexei V. Soloninin, Fabrice Morelle, Y. Filinchuk, Antonio Faraone, Hui Wu, Wei Zhou, Terrence J. Udovic
To investigate the dynamical properties of the novel hybrid compound, lithium benzimidazolate-borohydride Li2(bIm)BH4 (where bIm denotes a benzimidazolate anion, C7N2H5u-^), we have used a set of complementary techniques: neutron powder diffraction, ab

Wide-Angle Polarization Analysis on the Multi-Axis Crystal Spectrometer for the Study of Collective and Single Particle Dynamics of Methanol at its Prepeak

July 1, 2019
Wangchun Chen, Shannon M. Watson, Yiming Qiu, Jose Rodriguez Rivera, Antonio Faraone
Neutron polarization analysis capability with a large scattering angle and momentum transfer coverage has not been widely implemented for the separation of coherent and incoherent quasi-elastic neutron scattering (QENS) spectra. A feasibility test for soft

Nanoscale Particle Motion Reveals Polymer Mobility Gradient in Nanocomposites

May 21, 2019
Erkan Senses, Suresh Narayanan, Antonio Faraone
Polymer mobility near nanoparticle surfaces has been extensively discussed, however, direct experimental observation in the nanocomposite melts has been a difficult task. Here, by taking advantage of large dynamical asymmetry between miscible matrix and

Nanoscale Dynamics of Water Confined in Ordered Mesoporous Carbon

April 1, 2019
Kanae Ito, Antonio Faraone, Madhu Sudan Tyagi, Toshio Yamaguchi, Sow-Hsin Chen
The single particle dynamics of water confined within an ordered mesoporous carbon matrix was investigated in the temperature range from 290 K to 170 K by quasielastic neutron scattering using three high resolution neutron spectrometers. Thus, it was

Dynamics of Hydride Ions in Metal Hydride-Reduced BaTiO 3 Samples Investigated with Quasielastic Neutron Scattering

January 31, 2019
Carin Eklof-Osterberg, Reji Nedumkandathil, Ulrich Haussermann, Aleksander Jaworski, Andrew J. Pell, Madhu Sudan Tyagi, Niina H. Jalarvo, Bernhard Frick, Antonio Faraone, Maths Karlsson
Perovskite-type oxyhydrides, BaTiO3-xH^x, have been recently shown to exhibit hydride ion (H-) conductivity at elevated temperatures, but the underlying mechanism of hydride ion conduction and how it depends on temperature and oxygen vacancy concentration

Tracking the Progression of Anion Reorientational Behavior between a-Phase and b-Phase Alkali-Metal Silanides, MSIH 3 , by Quasielastic Neutron Scattering

October 25, 2018
Mirjana NMN Dimitrievska, Jean-Noel Chotard, Raphael Janot, Antonio Faraone, Wan Si Tang, Alexander V. Skripov, Terrence J. Udovic
Quasielastic neutron scattering (QENS) measurements over a wide range of resolutions were used to probe the reorientational behavior of the pyramidal SiH3- anions in the mono-alkali silanides (MSiH3, where M-K, Rb, and Cs) within the low-temperature

Two Inherent Crossovers of the Diffusion Process in Glass-Forming Liquids

October 5, 2018
Maiko Kofu, Antonio Faraone, Madhu Sudan Tyagi, Michihiro Nagao, Osamu Yamamuro
We report on incoherent quasielastic neutron scattering measurements examining a self-diffusion process in two types of glass-forming liquids, a molecular liquid (3-methylpentane) and an ionic liquid (1-butyl-3-methylimidazolium bis

Nature of Decahydro-Closo-Decaborate Anion Reorientations in an Ordered Alkali-Metal Salt: Rb 2 B 10 H 10

July 12, 2018
Mirjana NMN Dimitrievska, Vitalie Stavila, Alexei V. Soloninin, Roman V. Skoryunov, Olga A. Babanova, Hui Wu, Wei Zhou, Wan Si Tang, Antonio Faraone, Jacob Daniel Tarver, Benjamin Trump, Alexander V. Skripov, Terrence J. Udovic
The ordered monoclinic phase of the alkali-metal decahydro-closodecaborate salt Rb2B10H10 was found to be stable from about 250 K all the way up to an order-disorder phase transition temperature of approximately equal} 762 K. The broad temperature range

Dynamics of Phospholipid Membranes Beyond Thermal Undulations

June 7, 2018
Sudipta Gupta, Judith U. De Mel, Rasangi M. Perera, Piotr Zolnierczuk, Markus Bleuel, Antonio Faraone, Gerald J. Schneider
We investigated the molecular dynamics of unilamellar lipsomes by neutron spin echo spectroscopy. We report the first experimental evidence of a short-range motion at the length-scale of the size of the head group of a lipid. The associated mean square

Highly Reversible Zinc Metal Anode for Aqueous Batteries

June 1, 2018
Fei Wang, Oleg Borodin, Tao Gao, Xiulin Fan, Wei Sun, Fudong Han, Antonio Faraone, Joseph Dura, Kang Xu, Chunsheng Wang
Metallic zinc (Zn) has been regarded as an ideal anode material for aqueous batteries, because of its high theoretical capacity (820 mAh/g), low electrochemical potential (-0.762 V vs. SHE), high abundance, low toxicity and intrinsic safety. There has been