scholarly journals Crossed beam reactive scattering of oxygen atoms and surface scattering studies of gaseous condensation

1979 ◽  
Author(s):  
S.J. Sibener
Keyword(s):  
Surface Scattering ◽  
Reactive Scattering ◽  
Oxygen Atoms

Reactive scattering of ground-state and electronically excited oxygen atoms on a liquid hydrocarbon surface

1997 ◽  
Vol 108 ◽  
pp. 387-399 ◽  
Author(s):  
Donna J. Garton ◽  
Timothy K. Minton ◽  
Michele Alagia ◽  
Nadia Balucani ◽  
Piergiorgio Casavecchia ◽  
...  
Keyword(s):  
Ground State ◽  
Liquid Hydrocarbon ◽  
Reactive Scattering ◽  
Electronically Excited ◽  
Excited Oxygen ◽  
Oxygen Atoms

Reactive scattering of oxygen atoms: O+I2, ICl, Br2

1975 ◽  
Vol 29 (6) ◽  
pp. 1813-1828 ◽  
Author(s):  
D.St.A.G. Radlein ◽  
J.C. Whitehead ◽  
R. Grice
Keyword(s):  
Reactive Scattering ◽  
Oxygen Atoms

Inelastic and Reactive Scattering Dynamics of Hyperthermal Oxygen Atoms on Ionic Liquid Surfaces: [emim][NTf[sub 2]] and [C[sub 12]mim][NTf[sub 2]]

2011 ◽  
Author(s):  
Bohan Wu ◽  
Jianming Zhang ◽  
Timothy K. Minton ◽  
Kenneth G. McKendrick ◽  
John M. Slattery ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Reactive Scattering ◽  
Oxygen Atoms ◽  
Liquid Surfaces

Surface Structure of A Liquid Perfluoropolyether Examined by Reactive Ion/Surface Scattering

1995 ◽  
Vol 380 ◽  
Author(s):  
T. Pradeep ◽  
S. A. Miller ◽  
H. W. Rohrs ◽  
B. Feng ◽  
R. G. Cooks
Keyword(s):  
Surface Structure ◽  
Metal Ion ◽  
Liquid Surface ◽  
Surface Scattering ◽  
Reactive Scattering ◽  
Self Assembled Monolayer ◽  
Molecular Systems ◽  
Surface Induced Dissociation ◽  
Chemical Sputtering ◽  
Surface Collision

ABSTRACTThis study shows that reactive ion/surface collisions can provide information on the surface structure of molecular systems. The microscopic structures of perfluorinated polyether (PFPE) liquid surfaces are characterized by ion/surface collision experiments in a mass spectrometer and the results are compared to those obtained with a fluorinated self-assembled monolayer (F-SAM) surface. Low energy (< 100 eV) beams of W+ and W(CO)6+ ions are used for surface-induced dissociation (SID) and ion/surface reactive scattering, while Xe+ and Kr+ beams are used for chemical sputtering experiments. Both the PFPE and F-SAM surfaces show similar SID fragments while reactions with W+ and W(CO)6+ lead to the scattered metal ion with multiple fluorine atoms attached. The main peaks in chemical sputtering spectra are similar for both surfaces as well. Both hydrogen probe beams and chemical sputtering confirm that the liquid PFPE surface is nearly free of impurities. Our results on both surfaces also suggest that the CF3 group of the monomer units is most likely projected outward from the bulk of the liquid surface.

Reactive scattering of crossed supersonic beams: Cl + CH2I2 → ICl + CH2I

1997 ◽  
Vol 92 (1) ◽  
pp. 71-75
Author(s):  
JIAN-XIN QI ◽  
GUANG-JUN WANG ◽  
KE-LI HAN ◽  
YONG-XIANG SHA ◽  
GUO-ZHONG HE ◽  
...  
Keyword(s):  
Reactive Scattering ◽  
Supersonic Beams

Catalytic CO Oxidation on Unreconstructed Cu(110) by Reactive As-Adsorbed Oxygen Atoms below 230 K

1996 ◽  
Vol 100 (3) ◽  
pp. 1048-1054 ◽  
Author(s):  
Tsuyoshi Sueyoshi ◽  
Takehiko Sasaki ◽  
Yasuhiro Iwasawa
Keyword(s):  
Co Oxidation ◽  
Adsorbed Oxygen ◽  
Catalytic Co Oxidation ◽  
Oxygen Atoms

Modification of optical properties of PC-PBT/Cr2O3 and PC-PBT/CdS nanocomposites by gamma irradiation

2020 ◽  
Vol 92 (2) ◽  
pp. 20402
Author(s):  
Kaoutar Benthami ◽  
Mai ME. Barakat ◽  
Samir A. Nouh
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Band Gap ◽  
Color Difference ◽  
Band Gap Energy ◽  
Polybutylene Terephthalate ◽  
Γ Irradiation ◽  
Gap Energy ◽  
Vis Spectroscopy ◽  
Oxygen Atoms

Nanocomposite (NCP) films of polycarbonate-polybutylene terephthalate (PC-PBT) blend as a host material to Cr2O3 and CdS nanoparticles (NPs) were fabricated by both thermolysis and casting techniques. Samples from the PC-PBT/Cr2O3 and PC-PBT/CdS NCPs were irradiated using different doses (20–110 kGy) of γ radiation. The induced modifications in the optical properties of the γ irradiated NCPs have been studied as a function of γ dose using UV Vis spectroscopy and CIE color difference method. Optical dielectric loss and Tauc's model were used to estimate the optical band gaps of the NCP films and to identify the types of electronic transition. The value of optical band gap energy of PC-PBT/Cr2O3 NCP was reduced from 3.23 to 3.06 upon γ irradiation up to 110 kGy, while it decreased from 4.26 to 4.14 eV for PC-PBT/CdS NCP, indicating the growth of disordered phase in both NCPs. This was accompanied by a rise in the refractive index for both the PC-PBT/Cr2O3 and PC-PBT/CdS NCP films, leading to an enhancement in their isotropic nature. The Cr2O3 NPs were found to be more effective in changing the band gap energy and refractive index due to the presence of excess oxygen atoms that help with the oxygen atoms of the carbonyl group in increasing the chance of covalent bonds formation between the NPs and the PC-PBT blend. Moreover, the color intensity, ΔE has been computed; results show that both the two synthesized NCPs have a response to color alteration by γ irradiation, but the PC-PBT/Cr2O3 has a more response since the values of ΔE achieved a significant color difference >5 which is an acceptable match in commercial reproduction on printing presses. According to the resulting enhancement in the optical characteristics of the developed NCPs, they can be a suitable candidate as activate materials in optoelectronic devices, or shielding sheets for solar cells.

Sign in / Sign up

Export Citation Format

Share Document