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Chemistry

Chemical engineering & processing

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Displaying 76 - 100 of 781

The role of molecular modeling & simulation in the discovery and deployment of metal-organic frameworks for gas storage and separation

August 8, 2019
Author(s)
Arni Sturluson, Melanie Huynh, Alec Kaija, Caleb Laird, Sunghyun Yoon, Feier Hou, Zhenxing Feng, Christopher E. Wilmer, Yamil J. Colon, Yongchul G. Chung, Daniel Siderius, Cory M. Simon
Metal-organic frameworks (MOFs) are highly tunable, extended-network, crystalline, nanoporous materials with applications in gas storage, separations, and sensing. We review how molecular models and simulations of gas adsorption in MOFs have lucidly

Characterization of bubbler performance for low-volatility liquid precursor delivery

June 27, 2019
Author(s)
James E. Maslar, William A. Kimes, Brent A. Sperling, Ravindra K. Kanjolia
The performance of a bubbler to deliver the low-volatility, liquid cobalt precursor μ2- η2-(tBu- acetylene) dicobalthexacarbonyl (CCTBA) for reduced-pressure chemical vapor deposition and atomic layer deposition processes was characterized. A relatively

Interfaces In Aromatic Polymer-Nanocellulose Composites

March 22, 2019
Author(s)
Douglas M. Fox, Jeremiah Woodcock, Sindhu Seethamraju, Jeffrey W. Gilman, Katrina Wakeman, Tess Ravick
Formation of well dispersed cellulose – polymer composites is a challenge. This is magnified when preparing composites using nanoscale materials, where the bulk properties are dominated by interfacial properties. In this chapter, synthetic and processing

Compositional Imaging and Analysis of Late Iron Age Glass from the Broborg Vitrified Hillfort, Sweden

October 31, 2018
Author(s)
Jamie Weaver, Scott A. Wight, Carolyn Pearce, John McCloy, Thomas Lam, Rolf Sjoblom, David Peeler, Michael Schweiger, Albert Kruger, Scott Whittaker, Edward Vicenzi
Numerous Iron Age hillforts were constructed throughout Europe on high ground to serve ancient settlements. The edifice walls of a small fraction of hillforts were vitrified as a result of high temperature activity, most likely to reinforce the walls

Natural Alteration of 6Li Neutron Shielding Glass

September 21, 2018
Author(s)
Jamie L. Weaver, Danyal J. Turkoglu
Li-6 alumino-silicate glass, a neutron shielding material, has been studied to determine if and to what extent it alters under natural conditions. Analyses included neutron depth profiling, prompt gamma activation analysis, x-ray diffraction, and scanning

On the mechanisms and the characterization of the pulsed electron grafting of styrene onto poly(tetrafluoroethylene-co-hexafluoropropylene) to synthesize a polymer electrolyte membrane

September 21, 2018
Author(s)
Byung N. Kim, Alia Weaver, Marina Chumakov, Ileana M. Pazos, Dianne L. Poster, Karen Gaskell, Do H. Han, Gunther Scherer, Michael A. Yandrasits, Byung C. Lee, Mohamad Al-Sheikhly
During the pulsed-electron beam direct grafting of neat styrene onto poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP) substrate, the radiolytically-produced styryl and carbon-centered FEP radicals undergo various desired and undesired competing
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