Laser-Induced Fluorescence of Methyl Substituted Vinoxy Radicals and Reactions of Oxygen Atoms with Olefins

1998 ◽  
Vol 102 (41) ◽  
pp. 7924-7930 ◽  
Author(s):  
Nobuaki Washida ◽  
Satoshi Inomata ◽  
Masashi Furubayashi
Keyword(s):  
Laser Induced Fluorescence ◽  
Vinoxy Radicals ◽  
Oxygen Atoms

Laser-induced fluorescence measurement of oxygen atoms above a catalytic combustor surface

1990 ◽  
Vol 29 (1) ◽  
pp. 111 ◽  
Author(s):  
Mark J. Dyer ◽  
Lisa D. Pfefferle ◽  
David R. Crosley
Keyword(s):  
Laser Induced Fluorescence ◽  
Fluorescence Measurement ◽  
Catalytic Combustor ◽  
Oxygen Atoms

Laser-Induced Fluorescence of the CHClCHO Radical and Reaction of Oxygen Atoms with Halogenated Ethylenes

2001 ◽  
Vol 105 (32) ◽  
pp. 7559-7568 ◽  
Author(s):  
Satoshi Inomata ◽  
Isabelle Bridier ◽  
Masashi Furubayashi ◽  
Takashi Imamura ◽  
Gen Inoue ◽  
...  
Keyword(s):  
Laser Induced Fluorescence ◽  
Oxygen Atoms

scholarly journals Imaging laser-induced fluorescence of oxygen atoms in a flame

1984 ◽  
Vol 23 (19) ◽  
pp. 3255 ◽  
Author(s):  
Marcus Aldén ◽  
Hans M. Hertz ◽  
Sune Svanberg ◽  
Svante Wallin
Keyword(s):  
Laser Induced Fluorescence ◽  
Oxygen Atoms

Laser‐induced fluorescence of oxygen atoms in a plasma reactor

1992 ◽  
Vol 60 (1) ◽  
pp. 35-37 ◽  
Author(s):  
G. Hancock ◽  
M. J. Toogood
Keyword(s):  
Plasma Reactor ◽  
Laser Induced Fluorescence ◽  
Oxygen Atoms

Avoidance of the photochemical production of oxygen atoms in one-dimensional, two-photon laser-induced fluorescence imaging

1993 ◽  
Vol 32 (24) ◽  
pp. 4636 ◽  
Author(s):  
Dirk L. van Oostendorp ◽  
Howard B. Levinsky ◽  
Christine E. van der Meij ◽  
Rob A. A. M. Jacobs ◽  
Wim T. A. Borghols
Keyword(s):  
Fluorescence Imaging ◽  
Laser Induced Fluorescence ◽  
One Dimensional ◽  
Two Photon ◽  
Photochemical Production ◽  
Oxygen Atoms

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.

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