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Search Publications

NIST Authors in Bold

Displaying 726 - 750 of 3841

Automated SIMS for Determining Isotopic Distributions in Particle Polutations

February 1, 1998
Author(s)
David S. Simons, John G. Gillen, Cynthia J. Zeissler, R H. Fleming, P J. McNitt
… throughput is achieved by using a commercial secondary ion microscope to collect direct ion images simultaneously from multiple particles within the … image pairs are recorded by spatially resolved single ion counting with a resistive anode encoder (RAE) image …

Air-Stable Cu(I) Metal-Organic Framework for Hydrogen Storage

September 1, 2023
Author(s)
Debabrata Sengupta, Patrick Melix, Saptasree Bose, Joshua Duncan, Xingjie Wang, Mohammad Mian, Kent Kirlikovali, Faramarz Joodaki, Timur Islamoglu, Taner N. Yildirim, Randall Snurr, Omar Farha
… contain open metal sites have the potential for storing hydrogen (H2) at ambient temperatures. In particular, … demonstrate very high isosteric heats of adsorption for hydrogen relative to other reported MOFs with open metal … isosteric heats of adsorption (32 kJ/mol) with good hydrogen storage capability under ambient conditions (10.4 …

Achieving 0.2 % Relative Expanded Uncertainty in Ion Chromatography Analysis using a High-Performance Methodology

April 12, 2011
Author(s)
Ryan G. Brennan, Therese A. Butler, Michael R. Winchester
… spectrometry (ICP-OES) has been successfully translated to ion chromatography (IC) to enable analyses with extremely low … high-performance (HP), ion chromatography (IC), low uncertainty, anion SRM … Achieving 0.2 % Relative Expanded Uncertainty in Ion Chromatography Analysis using a High-Performance …

Modification to a testing assembly to enable strain-life measurements in pressurized hydrogen gas

August 25, 2023
Author(s)
Peter Bradley, May Ling Martin, Matthew Connolly, Robert Amaro, Damian Lauria, Andrew Slifka
… material lifetime and damage response. Strain-life data in hydrogen gas environments is missing in the literature and could provide valuable insights into hydrogen effects on the mechanical response of metals such as steels. We adapted existing hydrogen-gas-environment mechanical-testing equipment, which …

Reduction of Hydrogen Cyanide Concentrations and Acute Inhalation Toxicity From Flexible Polyurethane Foam Combustion Products by the Addition of Copper Compounds. Part 4. Effects of Combustion Conditions and Scaling on the Generation of Hydrogen cyanide

December 1, 1992
Author(s)
Barbara C. Levin, E Braun, M Paabo, Richard H. Harris Jr., Magdalena Navarro
… of cuprous oxide (Cu2O) in reducing the concentrations of hydrogen cyanide (HCN) from flexible polyurethane foams (FPU) … hydrogen cyanide, acute toxicity, combustion products, … Reduction of Hydrogen Cyanide Concentrations and Acute Inhalation Toxicity … of Combustion Conditions and Scaling on the Generation of Hydrogen cyanide …

Exploring the Chemical Space of Metal-Organic Frameworks with rht Topology for High Capacity Hydrogen Storage

May 9, 2024
Author(s)
Kunhuan Liu, Zhijie Chen, Timur Islamoglu, Seung-Joon Lee, Haoyuan Chen, Taner N. Yildirim, Omar Farha, Randall Snurr
… Hydrogen is considered a crucial clean energy vector to … but due to the low volumetric energy density of gaseous hydrogen, it is difficult to store hydrogen for many practical applications. Cryogenic … Frameworks with rht Topology for High Capacity Hydrogen Storage …

Postsynthetic Metalation of Robust Hydrogen-Bonded Organic Framework for Heterogeneous Catalysis

June 21, 2019
Author(s)
Bin Han, Hailong Wang, Chiming Wang, Hui Wu, Wei Zhou, Banglin Chen, Jianzhuang Jiang
… Hydrogen-bonded organic framework (HOF)-based catalysts still … bis(tetraoxacalix[2]arene[2]triazine), depending on the hydrogen bonding with the help of π-π interactions. The … heterogeneous catalyst with porous hydrogen-bonded structure retained, which exhibits excellent …

Broadening of the drumhead mode spectrum due to in-plane thermal fluctuations of two-dimensional trapped-ion crystals in a Penning trap

November 5, 2020
Author(s)
Athreya Shankar, Chen Tang, Matthew Affolter, Kevin Gilmore, Daniel H. Dubin, Scott E. Parker, Murray Holland, John Bollinger
… this work, we establish in-plane thermal fluctuations in ion positions as a major contributor to the broadening of the … Penning trap, quantum simulation, quantum sensing, trapped-ion crystals … in-plane thermal fluctuations of two-dimensional trapped-ion crystals in a Penning trap …

Isotopic and Other Influences of the Realization of the Triple Point of Hydrogen

August 1, 2005
Author(s)
B Fellmuth, L Wolber, Y Hermier, F Pavese, PPM Steur, I Peroni, A Szmyrka-Grzebyk, L Lipinski, Weston L. Tew, H Nakano, H Sakurai, O Tamura, D I. Head, K D. Hill, A G. Steele
… dependence of the triple-point tmeperature of equilibrium, hydrogen on the deuterium content at low concentrations has … To investigate the thermodynamic properties of the hydrogen-deuterium mixtures and to elucidate the factors that … some of these have been compared with an open-cell system. Hydrogen has with a deuterium content ranging from 27.2 mu …

X-Ray Reflectivity and FTIR Measurements of N2 Plasma Effects on the Density Profile of Hydrogen Silsesquioxane Thin Films

October 1, 2001
Author(s)
V. J. Lee, C G. Chao, Eric K. Lin, Wen-Li Wu, B M. Fanconi, J K. Lan, Y L. Cheng, H C. Liou, Y L. Wang, M S. Feng
… N2 plasma effects on the density depth profile of hydrogen silsesquioxane (HSQ) thin films. The SXR data … density profile, exposure time, FTIR, hydrogen silsesquioxane, low-k dielectric, plasma effect, … of N2 Plasma Effects on the Density Profile of Hydrogen Silsesquioxane Thin Films …

Stacking Faults Assist Lithium-Ion Conduction in a Halide-Based Superionic Conductor

April 6, 2022
Author(s)
Elias Sebti, Hayden Evans, Hengning Chen, Peter Richardson, Kelly White, Raynald Giovine, Krishna P. Koirala, Yaobin Xu, Eliovardo Gonzalez-Correa, Chongmin Wang, Craig Brown, Anthony Cheetham, Pieremanuele Canepa, Raphaele Clement
… of defect-enabled Li + conduction in this class of Li-ion conductors. … Stacking Faults, Ion Conductor, diffraction, solid-state battery … Stacking Faults Assist Lithium-Ion Conduction in a Halide-Based Superionic Conductor …

A New Experiment for Determining Evaporation and Condensation Coefficients of Cryogenic Propellants

March 1, 2016
Author(s)
Kishan Bellur, E F. Medici, M Kulshreshtha, V Konduru, D Tyrewala, A Tamilarasan, J McQuillen, Juscelino Leao, Daniel S. Hussey, David L. Jacobson, Julia Scherschligt, J Hermanson, C Choi, J Allen
… to determine the accommodation coecients for liquid hydrogen and liquid methane. The experimental e ort utilizes … experiments are the first known observation of a liquid hydrogen menisci condensing and evaporating inside aluminum … a finite contact angle, albeit very small, between liquid hydrogen and aluminum oxide. …

Determining Steel Weld Qualification and Performance for Hydrogen Pipelines

March 17, 2023
Author(s)
Matthew Connolly, Andrew Slifka, Damian Lauria, Peter Bradley, May Ling Martin, Zack Buck, Newell Moser, Robert Amaro, Chris Looney
… Determining Steel Weld Qualification and Performance for Hydrogen Pipelines … Determining Steel Weld Qualification and Performance for Hydrogen Pipelines …

Electrolyte stability determines scaling limits for solid-state 3D Li-ion batteries

December 20, 2011
Author(s)
Dmitry A. Ruzmetov, Vladimir P. Oleshko, Paul M. Haney, Henri J. Lezec, K Karki, K Baloch, Amit K. Agrawal, Albert Davydov, Sergiy Krylyuk, Y Liu, JY Huang, Mihaela M. Tanase, John Cumings, Albert A. Talin
… Rechargeable, all-solid state Li-ion batteries (LIBs) with high specific capacity and small … Lithium ion battery, nanowire, nanobattery, in situ transmission … stability determines scaling limits for solid-state 3D Li-ion batteries …

Effect of N-Terminal Glutamic Acid and Glutamine on Fragmentation of Peptide Ions

March 27, 2010
Author(s)
Bhaskar Godugu, Pedatsur Neta, Yamil Simon, Stephen Stein
… path for electrospray generated tryptic peptide ions is the dissociation of the peptide bond linking the … peptide ions, mass spectrometry, collision induced dissociation, … Glutamic Acid and Glutamine on Fragmentation of Peptide Ions …

Collisional Energy Dependence of Peptide Ion Fragmentation

March 1, 2009
Author(s)
Pedatsur Neta, Y Simon-Manso, Xiaoyu Yang, Stephen Stein
… The collision voltage at which the sum of the fragment ion abundances was equal to the remaining parent ion (V 1/2 ) was the principal measure of fragmentation. Each … a relative measure of the ease of fragmentation of an ion in each class. A few peptides with certain structures do …
Displaying 726 - 750 of 3841
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