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Search Publications

NIST Authors in Bold

Displaying 551 - 575 of 1647

Probing the paramagnetic interactions between the unpaired electronic spins of carbon atoms and the nuclear spins of hydrogen molecules with Raman spectroscopy

December 1, 2011
Author(s)
Andrea Centrone
… electronic spins of carbon atoms and the nuclear spins of hydrogen molecules were probed with Raman spectroscopy by … and Raman measures on carbon materials interacting with hydrogen molecules could result in a better understanding of … electronic spins of carbon atoms and the nuclear spins of hydrogen molecules with Raman spectroscopy …

Study of hydrogen diffusion in superprotonic ionic conductors, MHXO4, by m+SR and QENS

February 21, 2009
Author(s)
Yutaka Ikedo, Hiroshi Nozaki, Masashi Harada, Jun Sugiyama, Taku J. Sato, Yasumitsu Matsuo, Kusuo Nishiyama, James S. Lord, Yiming Qiu, John R. Copley
… implies a relationship between the presence of the atomic hydrogen (Mu) state and high σH+ in Phase I of CHS. According … Study of hydrogen diffusion in superprotonic ionic conductors, MHXO4, …

Grain growth and superconductivity of rhenium electrodeposited from water-in-salt electrolytes

February 25, 2020
Author(s)
William Sides, Ehsan Hassani, David P. Pappas, Yang Hu, Tae-Sick Oh, Qiang Huang
… electrolyte was used to mitigate embrittlement by reducing hydrogen evolution at the cathode where Re is deposited. The … of 220 °C in inert atmospheres. The introduction of hydrogen in the annealing ambient further facilitates this … transition temperature, water-in-salt electrolyte, hydrogen evolution …

Fabrication of 3D Printed Hydroxyapatite Composite Scaffolds for Bone Regeneration

May 19, 2021
Author(s)
Yoontae Kim, Eun-Jin Lee, Albert Davydov, Stanislav Frakhtbeyen, Jonathan Seppala, Laurence Chow, Tagaki Shozo, Stella Alimperti
… composite scaffold was printed using calcium phosphate cement (CPC) slurries at room temperature. The CPC … of a solid phase that includes a mixture of tetracalcium phosphate (TTCP; Ca4(PO4)2O) and dicalcium phosphate anhydrous (DCPA; CaHPO4), and a liquid phase that …

Progress on Optical-clock-based Time Scale at NIST: Simulations and Preliminary Real-Data Analysis

April 20, 2018
Author(s)
Jian Yao, Jeffrey A. Sherman, Tara M. Fortier, Thomas E. Parker, Judah Levine, Joshua J. Savory, Stefania Romisch, William F. McGrew, Robert J. Fasano, Stefan A. Schaeffer, Kyle P. Beloy, Andrew D. Ludlow
… a time scale composed of continuously-operating commercial hydrogen masers and an optical frequency standard that does … Cs fountain, hydrogen maser, Kalman filter, optical clock, Time scale …

Incorporating an Optical Clock into a Time Scale at NIST: Simulations and Preliminary Real-Data Analysis

March 29, 2018
Author(s)
Jian Yao, Jeffrey A. Sherman, Tara M. Fortier, Thomas E. Parker, Judah Levine, Joshua J. Savory, Stefania Romisch, William F. McGrew, Robert J. Fasano, Stefan A. Schaeffer, Kyle P. Beloy, Andrew D. Ludlow
… a time scale composed of continuously-operating commercial hydrogen masers and an optical frequency standard that does … Cs fountain, hydrogen maser, Kalman filter, optical clock, Time scale …

Methanol, Ethanol, and Hydrogen Sensing using Metal-Oxide and Metal (TiO subscript 2-Pt) Composite Nanoclusters on GaN Nanowires: A New Route towards Tailoring the Selectivity of Nanowire-Nanocluster based Chemical Sensors.

May 12, 2012
Author(s)
Geetha G. Aluri, Abhishek Motayed, Albert Davydov, Vladimir Oleshko, Kristine A. Bertness, Norman Sanford, Mulpuri V. Rao
… only to alcohols (methanol and ethanol in specific) and to hydrogen, and not to any other chemicals. All these hybrid … 100 sec. The GaN/(TiO-Pt) NWNC sensors were able to detect hydrogen concentrations from 1 ppm to 1% in nitrogen in less than 60 s. The detection limits for hydrogen is not our sensor's limitation but the measurement …

Negative Cooperativity upon Hydrogen Bond-Stabilized O 2 Adsorption in a Redox-Active Metal-Organic Framework

June 18, 2020
Author(s)
Julia Oktawiec, Henry Z. H. Jiang, Jenny G. Vitillo, Douglas A. Reed, Lucy E. Darago, Benjamin Trump, Varinia Bernales, Harriet Li, Kristen A. Colwell, Hiroyasu Furukawa, Craig Brown, Laura Gagliardi, Jeffrey R. Long
… adsorption of O 2 . In particular, moderate-strength hydrogen bonding stabilizes a cobalt(III)-superoxo species … Negative Cooperativity upon Hydrogen Bond-Stabilized O 2 Adsorption in a Redox-Active …
Displaying 551 - 575 of 1647
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