Results 1 to 10 of about 326,285 (407)
Fluorine abundances in planetary nebulae [PDF]
Astrophys.J.631:L61-L64,2005, 2005 We have determined fluorine abundances from the F II 4789 and F IV 4060 nebular emission lines for a sample of planetary nebulae (PNe). Our results show that fluorine is generally overabundant in PNe, thus providing new evidence for the synthesis of ...
Butler K. +6 more
core +2 more sources
On the origin of fluorine in the Milky Way [PDF]
Mon.Not.Roy.Astron.Soc. 354 (2004) 575, 2004 The main astrophysical factories of fluorine (19F) are thought to be Type II supernovae, Wolf-Rayet stars, and the asymptotic giant branch (AGB) of intermediate mass stars.
Agostino Renda +43 more
core +3 more sources
Electronic Structures and Optical Properties of Partially and Fully Fluorinated Graphene [PDF]
Phys. Rev. Lett. 114, 047403 (2015), 2015 In this letter we study the electronic structures and optical properties of partially and fully fluorinated graphene by a combination of abinitio G0W0 calculations and large-scale multi-orbital tight-binding simulations.
Katsnelson, Mikhail I. +4 more
core +3 more sources
Superconductivity in WO2.6F0.4 synthesized by reaction of WO3 with Teflon [PDF]
Phys. Rev B 84, 174519 (2011), 2011 WO3-xFx (x < 0.45) perovskite-like oxyfluorides were prepared by a chemically reducing fluorination route using the polymer polytetrafluoroethylene (Teflon). The symmetry of the crystal structures of WO3-xFx changes from monoclinic to tetragonal to cubic
Cava, R. J. +2 more
core +2 more sources
Absence of stable atomic structure in fluorinated graphene [PDF]
, 2016 Based on the results of first-principles calculations we demonstrate that significant distortion of graphene sheets caused by adsorption of fluorine atoms leads to the formation of metastable patterns for which the next step of fluorination is ...
Boukhvalov, Danil W.
core +3 more sources
Porous Materials for Atmospheric Water Harvesting
ChemistryOpen, 2023 Atmospheric Water Harvesting (AWH) using porous adsorbents is emerging as a promising solution to combat water shortage. Thus, a clearer understanding of the developing trends and optimization strategies of different porous adsorbents can be extremely ...
Shuai Zhang +4 more
doaj +1 more source
Global Impact and Balancing Act: Deciphering the Effect of Fluorination on B1s Binding Energies in Fluorinated $h$-BN Nanosheets [PDF]
Precis Chem. 2024, 2, 239-244, 2023 X-ray photoelectron spectroscopy (XPS) is an important characterization tool in the pursuit of controllable fluorination of two-dimensional hexagonal boron nitride ($h$-BN). However, there is a lack of clear spectral interpretation and seemingly conflicting measurements exist. To discern the structure-spectroscopy relation, we performed a comprehensive
arxiv +1 more source
Novel First-Principles Insights into Graphene Fluorination [PDF]
, 2021 Comprehensive first-principles calculations are performed on diverse arrangements of relevant chemical defects in fluorographene to provide accurate microscopic insights into the process of graphene fluorination. The minimum energy paths for the half- and full-fluorination processes are calculated for a better understanding of these phenomena.
arxiv +1 more source
Comparative thermal research on tetraazapentalene-derived heat-resistant energetic structures
Scientific Reports, 2020 Organic inner salt structures are ideal backbones for heat-resistant energetic materials and systematic studies towards the thermal properties of energetic organic inner salt structures are crucial to their applications.
Jing Zhou +5 more
doaj +1 more source