Results 71 to 80 of about 20,199 (258)

Kinetic Assessment of the Simultaneous Hydrodesulfurization of Dibenzothiophene and the Hydrogenation of Diverse Polyaromatic Structures

open access: yes, 2018
The elimination of sulfur from fossil fuels via hydrodesulfurization (HDS) is paramount to produce cleaner fuels. Ultradeep HDS refers to reducing sulfur in fuels below the 10 ppm level.
Edgar M. Morales-Valencia   +3 more
semanticscholar   +1 more source

Introducing the Cis‐2,3‐Bis(trifluoromethyl)cyclopropyl Chemotype: Late‐Stage Installation and Stereoelectronic Properties

open access: yesChemistryEurope, Volume 4, Issue 2, February 2026.
The cis‐2,3‐bis(trifluoromethyl)cyclopropyl chemotype is introduced. The steric demand of this motif is intermediate between that of the heptafluoroisopropyl and prefluorotertbutyl groups; yet, it induces significantly less lipophilicity than these due to its facial polarity.
Daniel Gaviña   +5 more
wiley   +1 more source

Phylogenomic Classification and Biosynthetic Potential of the Fossil Fuel-Biodesulfurizing Rhodococcus Strain IGTS8

open access: yesFrontiers in Microbiology, 2020
Rhodococcus strain IGTS8 is the most extensively studied model bacterium for biodesulfurization of fossil fuels via the non–destructive sulfur–specific 4S pathway.
Dean Thompson   +9 more
doaj   +1 more source

A Probable Origin of Dibenzothiophenes in Coals and Oils

open access: yesEnergies, 2021
To probe the possibility of thiophenolate as an origin of dibenzothiophenes (DBTs) and establish the detailed chemical transformations from thiophenolate to DBTs, the thermal degradation of thiophenolate has been carried out at various temperatures.
Yu Ji   +3 more
doaj   +1 more source

Shellfish Tissue Monitoring in Piscataqua Region Estuaries 2014 [PDF]

open access: yes, 2015
Originally conducted by the Gulf of Maine Council on the Marine Environment from 1993 to 2011, the Gulfwatch Program examined trends in the water quality of the Gulf of Maine by monitoring toxic contaminant concentrations in the tissues of shellfish ...
Wood, Matthew A.
core   +1 more source

Geolipidomics: Non‐Targeted Analysis of Rapidly Heated Geologic Samples With Gas‐Chromatography‐Mass Spectrometry

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract Lipids are powerful tools for reconstructing paleoenvironments and geologic processes because of their ubiquity and preservation in the rock record. Traditionally, organic geochemistry studies are targeted analyses of known biomarker compounds with known responses to past environmental conditions or geologic processes.
M. C. Baker   +2 more
wiley   +1 more source

Synthesis and Characterization of Uncracked IrO2‒SnO2‒Sb2O3 Oxide Films Using Organic Precursors and Their Application for the Oxidation of Tartrazine and Dibenzothiophene

open access: yesInternational Journal of Electrochemical Science, 2021
A ternary coating film of IrO2‒SnO2‒Sb2O3 on a Ti substrate was prepared by thermal decomposition in an adapted protocol of the Pechini method to obtain DSA type electrodes.
Miguel A. González–Fuentes   +8 more
doaj   +1 more source

Cyclometalated Pt(II) and Pd(II) Ring‐Expanded Complexes with N^C*S Type Ligands

open access: yesZeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 1, January 6, 2026.
The structures, electrochemistry, and photophysics of cyclometalated Pt(II) and Pd(II) complexes of the type [M(N^C*S)Cl] (M = Pt or Pd; C = phenyl, N = pyridyl), containing the S‐containing moieties 1‐thianthrenyl or 1‐dibenzo[b, d]thiophenyl, were studied.
Leo Payen, Pascal L. Jurzick, Axel Klein
wiley   +1 more source

Shellfish Tissue Monitoring in Piscataqua Region Estuaries 2010 and 2011 [PDF]

open access: yes, 2012
The goal of this project was to provide data for two PREP indicators of estuarine condition: TOX1 and TOX3. These two indicators report on “Shellfish tissue concentrations relative to FDA standards” and “Trends in shellfish tissue contaminant ...
New Hampshire Department of Environmental Services   +2 more
core   +2 more sources

Selective oxidation of bulky organic sulphides over layered titanosilicate catalysts [PDF]

open access: yes, 2016
The authors acknowledge the Czech Science Foundation (P106/12/G015) for the financial support.Selective oxidation of sulphides is a straightforward method of preparation of organic sulphoxides and sulphones, which are important chemical intermediates and
Prech, Jan   +2 more
core   +8 more sources

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