This proves that rock salt may have repeatedly lost and then recovered its sealing capacity during two stages of oil emplacement. Water and hydrocarbons were detected by UV Raman spectroscopy in the studied samples, in both HC-bearing inclusions and aqueous inclusions. These results are important ...
The binding energy was normalized to the C 1 s energy (284.6 eV) for adventitious hydrocarbons as the indirect standard. The UV-Vis diffuse reflectance spectra were measured using a UV-Vis near-infrared spectrometer (UV-3150, Shimadzu). The ambient photoluminescence (PL) emission spectra ...
Ga2O3surface (Fig. 3(e) and (f)). Note that the much weaker C signals detected from the bare Ga2O3film are due to surface adsorption of hydrocarbons in air. All these morphology and element-distribution analyses manifest the successful transfer of MLG on top of the Ga2O3films in our ...
Mixing of the Immiscible: Hydrocarbons in Water-Ice near the Ice Crystallization Temperature Using ultraviolet–visible (UV–vis), Fourier-transform Infrared (FTIR), and laser-induced-fluorescence (LIF) spectroscopic techniques, we show that, although ice infrared absorption features change from a broad...
Physical chemistry UV Raman studies of hydrocarbons in zeolites| (I) coke chemistryII) benzene in MFIIII) quantitative Raman analysis NORTHWESTERN UNIVERSITY Peter C. Stair ZhangChaoUV Raman spectroscopy is a powerful tool to investigate hydrocarbons-zeolite systems, including the coke formation ...
UV Raman spectroscopy is a powerful tool to investigate hydrocarbons-zeolite systems, including the coke formation mechanism during MTH reactions, the sorbet-framework interactions and the quantitative analysis of catalytic reactions.;First, methanol, dimethyl ether and ethylene reactions were carried out ...
These classes are identified as substituted fluorenes, polyolefin chains, and one-dimensional bent polyaromatic hydrocarbons. Naphthalene was also identified as an early stage reaction product. All of these molecules must be formed inside the zeolite pores due to the nature of the IR laser heating....
UV RamanResonance RamanSpectroscopyIsolated transition metal ionsTransition metal oxidesSelective oxidationActive sitesCatalystsIsolated transition metal ions/oxides in molecular sieves and on surfaces are a class of active sites for selective oxidation of hydrocarbons. Identifying the active sites and their ...
Phenanthrene, one of the aromatic hydrocarbons, was also examined at a concentration of 0.1 wt% and even at this level was found to have a strong signal-to-noise ratio. It should be noted that the instrument utilized in this study was designed to approximate the operation of a 'fieldable'...
ChemInform Abstract: Raman-UV Double Resonance in Acetylene: Rovibrational State Preparation and Spectroscopy.IRandRamanspectra(organicsubstances)hydrocarbons(acycliccompounds)ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals...