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Neutron research

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Displaying 276 - 300 of 914

Interplay between the Reorientational Dynamics of the B 3 H 8 - Anion and the Structure in KB 3 H 8

February 25, 2021
Author(s)
M. S. Andersson, Jakob Grinderslev, X.-M. Chen, X. Chen, Ulrich Haussermann, Wei Zhou, T. R. Jensen, M. Karlsson, Terrence J. Udovic
The local structure and reorientational dynamics of KB 3H 8 were studied using quasielastic and inelastic neutron scattering, Raman spectroscopy, first-principles calculations and differential scanning calorimetry. The results reveal the existence of a

Tailoring electrode-electrolyte-interfaces in lithium-ion batteries using molecularly engineered functional polymers

February 22, 2021
Author(s)
Laisuo Su, Jamie Weaver, Mitchell C. Groenenboom, Nathan Nakamura, Eric Rus, Priyanka Anand, Shikhar Krishn Jha, Joseph Okasinski, Joseph Dura, B Reeja-Jayan
Electrode−electrolyte interfaces (EEIs) affect the rate capability, cycling stability, and thermal safety of lithium-ion batteries (LIBs). Designing stable EEIs with fast Li+ transport is crucial for developing advanced LIBs. Here, we study Li+ kinetics at

Adsorption of Non-Ionic Surfactant and Monoclonal Antibody on Siliconized Surface Studied by Neutron Reflectometry

February 15, 2021
Author(s)
Zhenhuan Zhang, Ann M. Woys, Kunlun Hong, Christoph Grapentin, Tarik A. Khan, Isidro E. Zarraga, Norman J. Wagner, Yun Liu
The adsorption of monoclonal antibodies (mAbs) on hydrophobic surfaces is known to cause protein aggregation and degradation. Therefore, surfactants, such as Poloxamer 188, are widely used in therapeutic formulations to stabilize mAbs and protect mAbs from

Micromechanical Behaviorof Multilayered Ti/Nb Composites Processed by Accumulative Roll Bonding: An in-situ Synchrotron X-ray Diffraction Investigation

February 14, 2021
Author(s)
S. Jiang, R. L. Peng, Z. Hegedus, Thomas Gnaupel-Herold, J. J. Moverare, U. Lienert, F. Fang, X. Zhao, L. Zuo, N. Jia
Ti/Nb multilayered composites were fabricated by accumulative roll bonding (ARB). With increasing ARB cycles, shear bands become predominant in the continuously strengthened composites. The correlation between micromechanical behavior and mechanical

Why Polymer Glasses with Enhanced Sub-nanosecond Relaxation are Tougher

February 12, 2021
Author(s)
Christopher Soles, Adam B. Burns, Kanae N. Ito, Jack Douglas, Robert Dimeo, Madhu Sudan Tyagi, Jingsheng Wu, Albert F. Yee, Yueh-Ting Shih, Liping Huang
This manuscript explores the connection between the fast relaxation processes in a polymer glass and essential trends in the mechanical toughness, a non-linear mechanical property that is of practical interest for engineering polymers with high impact

National Institute of Standards and Technology Environmental Scan 2020

February 9, 2021
Author(s)
Heather Evans, Kristen K. Greene, William M. Healy, Elizabeth Hoffman, Kate Rimmer, Anna V. Sberegaeva, Neil M. Zimmerman
The 2020 National Institute of Standards and Technology Environmental Scan provides an analysis of key external factors that could impact NIST and the fulfillment of its mission in coming years. The analyses were conducted through four separate lenses

A Combinatory Ferroelectric Compound Bridging Simple ABO 3 and A-Site-Ordered Quadruple Perovskite

February 2, 2021
Author(s)
Jianfa Zhao, Jiacheng Gao, Wenmin Li, Yuting Qian, Xiao Wang, Xi Shen, Zhiwei Hu, Cheng Dong, Qingzhen Huang, Lipeng Cao, Zhi Li, Jun Zhang, Chongwen Ren, Lei Duan, Qingqing Liu, Richeng Yu, Yang Ren, Shih-Chang Weng, Hong-Ji Lin, Chien-Te Chen, Liu-Hao Tjeng, Youwen Long, Zheng Deng, Jinlong Zhu, Xiancheng Wang, Hongming Weng, Runze Yu, Martha Greenblatt, Changqing Jin

Electrolyte Layer Gas Triggers Cathode Potential Instability in CO2 Electrolyzers

February 1, 2021
Author(s)
Kevin Krause, Jason K. Lee, ChungHyuk Lee, Hisan W. Shafaque, Pascal J. Kim, Kieran F. Fahy, Pranay Shrestha, Jacob LaManna, Elias Baltic, David Jacobson, Daniel Hussey, Aimy Bazylak
Electrolytic carbon dioxide (CO2) reduction is becoming increasingly promising for managing anthropogenic CO2 emissions; however, issues related to unstable performance and ineffective gas management are still not fully accounted for in the field. Here, we

Implementation of a Self-Consistent Slab Model of Bilayer Structure in the SasView Suite

February 1, 2021
Author(s)
Luoxi Tan, James G. Elkins, Brian H. Davison, Elizabeth Kelley, Jonathan Nickels
Slab models are simple and useful structural descriptions which have long been used to describe lyotropic lamellar phases, such as lipid bilayers. Typically, slab models break a bilayer structure into three pieces, an inner solvent-free core and two

Water Migration and Swelling in Engineered Barrier Materials for Radioactive Waste Disposal

January 25, 2021
Author(s)
Joanna McFarlane, Lawrence M Anovitz, Michael C. Cheshire, Victoria H. DiStefano, Hassina Z. Bilheux, Jean-Christophe Bilheux, Luke L. Daemen, Richard E. Hale, Ronald L. Howard, A. J. Ramirez-Cuesta, Louis J. Santodonato, Markus Bleuel, Daniel S. Hussey, David L. Jacobson, Jacob LaManna, Edmund Perfect, Logan Qualls
Deep underground repositories are needed to isolate radioactive waste from the biosphere. Bentonite is an integral component of many multibarrier repository systems. Information on the hydraulic behavior of bentonite is needed for modeling the long-term

Neel Ordering in the Distorted Honeycomb Pyrosilicate: C-Er 2 Si 2 O 7

January 18, 2021
Author(s)
Gavin Hester, T. N. DeLazzer, S. S. Lim, Craig Brown, K. A. Ross
The rare-earth pyrosilicate family of compounds (RE 2Si 2O 7) hosts a variety of polymorphs, some with honeycomb-like geometries of the rare-earth sublattices, and the magnetism has yet to be deeply explored in many of the cases. Here we report on the

Time-Resolved SANS Reveals Pore-Forming Peptides Cause Rapid Lipid Reorganization

January 15, 2021
Author(s)
Michael H. Nguyen, Mitchell DiPasquale, Brett W. Rickeard, Caesar G. Yip, Kaity N. Greco, Elizabeth Kelley, Drew Marquardt
Cells depend on proper lipid transport and their precise distribution for vital cellular function. Disruption of such lipid organization can be initiated by external agents to cause cell death. Here, we investigate two antimicrobial pore-forming peptides

Conduction Band Control of Oxyhalides with a Triple-Fluorite Layer for Visible Light Photocatalysis

January 8, 2021
Author(s)
Akinobu Nakada, Daichi Kato, Hikaru Takahira, Masayoshi Yabuuchi, Masanobu Higashi, Hajime Suzuki, Maria Kirsanova, Naoji Kakudou, Cedric Tassel, Takafumi Yamamoto, Craig Brown, Akinori Saeki, Artem M. Abakumov, Hiroshi Kageyama, Ryu Abe
Compounds with fluorite-type Bi 2O 2 layers display various properties due to stereoactive Bi-ions. Bi 2O 2-based oxyhalides are promising visible-light photocatalysts, where several strategies have been demonstrated to control the valence band maximum

Structural Characterization and Modeling of a Respiratory Syncytial Virus Fusion Glycoprotein Nanoparticle Vaccine in Solution

January 4, 2021
Author(s)
Susan T. Krueger, Joseph E. Curtis, Daniel R. Scott, Alexander Grishaev, Greg Glenn, Gale Smith, Larry Ellingsworth, Oleg Borisov, Ernest Maynard
Globally, respiratory syncytial virus (RSV)is a major cause of sever lower respiratory tract infection in young children, older adults, and immune compromised populations, for which there are no licensed vaccines. The RSV fusion (F)/polysorbate 80 (PS80)

Complex by Design: Hydrotrope-Induced Micellar Growth in Deep Eutectic Solvents

January 1, 2021
Author(s)
Adrian Sanchez-Fernandez, Anna E. Leung, Elizabeth Kelley, Andrew J. Jackson
Here the microstructure of hydrotrope-surfactant assemblies in 1:2 choline chloride:glycerol (ChCl:Glyc) is presented. The effect of choline salicylate (ChSal) on the micellization of hexadecyltrimethylammonium chloride (C 16TAC) was investigated by

The interactive effect of heat and mass transport on water condensation in the gas diffusion layer of a proton exchange membrane fuel cell

December 31, 2020
Author(s)
Po-Ya A. Chuang, Md A. Rahman, Felipe Mojica, Daniel S. Hussey, David L. Jacobson, Jacob LaManna
Despite recent advancement in fuel cell technology, significant challenges remain in achieving high power density operation to meet the stringent targets of performance, durability and cost. This is due to the lack of fundamental understanding in

Spatially graded porous transport layers for gas evolving electrochemical energy conversion: High performance polymer electrolyte membrane electrolyzers

December 15, 2020
Author(s)
Jason K. Lee, ChungHyuk Lee, Kieran F. Fahy, Pascal J. Kim, Jacob LaManna, Eli Baltic, Daniel S. Hussey, David L. Jacobson, A Gago, S Kolb, K Friedrich, Aimy Bazylak
Decarbonizing society's energy infrastructure is foundational for a sustainable future and can be realized by harnessing renewable energy for clean hydrogen and on-demand power with fuel cells. Here, we elucidate how graded porous transport layers (PTLs)

VDAC Gating Thermodynamics, but Not Gating Kinetics, Are Virtually Temperature Independent

December 15, 2020
Author(s)
Maria Queralt-Martin, David Hoogerheide, Sergei Y. Noskov, Alexander M. Berezhkovskii, Tatiana Rostovtseva, Sergey Bezrukov
The voltage-dependent anion channel, VDAC, is the most abundant protein in the mitochondrial outer membrane and an archetypical β-barrel channel. Here, we study the effects of temperature on VDAC channels reconstituted in planar lipid membranes at the
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