Results 21 to 30 of about 382,237 (314)

cis,trans,cis-1,2,3,4-Tetrakis[2-(ethylsulfanyl)phenyl]cyclobutane

open access: yesIUCrData, 2016
The title cyclobutane derivative, C36H40S4, formed serendipitously through a photochemically initiated [2 + 2] cycloaddition. The asymmetric unit contains half a molecule with the 2-(ethylsulfanyl)phenyl substituents in a cis configuration, the other ...
Barbara Sohr   +4 more
doaj   +1 more source

Lunar ore geology and feasibility of ore mineral detection using a far-IR spectrometer

open access: yesFrontiers in Earth Science, 2023
Lunar sulfides and oxides are a significant source of noble and base metals and will be vital for future human colonies’ self-sustainability. Sulfide detection (pyrite and troilite) applies to many technological fields and use cases, for example, as a ...
Jakub Ciazela   +15 more
doaj   +1 more source

Optimization of factors affecting on sulfide oxidation from synthetic spent caustic by Haloalkaliphilic Thioalkalivibrio versutus by focus on sodium ion effect: Application of response surface methodology [PDF]

open access: yesIranian Journal of Chemical Engineering, 2017
In the present study, the effects of four factors including initial sulfide concentration (mg l-1 ), agitation speed (rpm), amount of inoculums (%) and sodium concentration (mg l-1) on removal efficiency (%R) and yield of sulfate production by ...
H. kalantari   +3 more
doaj  

Sulfur Cave (Romania), an extreme environment with microbial mats in a CO2-H2S/O2 gas chemocline dominated by mycobacteria

open access: yesInternational Journal of Speleology, 2018
Sulfur Cave (Puturosu Mountain, Romania) is an extreme environment, unique for displaying life in a gas chemocline. The lower part of the cave is filled with CO2, CH4, and H2S of mofettic origin, while the upper part contains air that floats above the ...
Serban M. Sarbu   +18 more
doaj   +1 more source

Canopy uptake dominates nighttime carbonyl sulfide fluxes in a boreal forest [PDF]

open access: yes, 2017
Nighttime vegetative uptake of carbonyl sulfide (COS) can exist due to the incomplete closure of stomata and the light independence of the enzyme carbonic anhydrase, which complicates the use of COS as a tracer for gross primary productivity (GPP).
Aalto, J.   +15 more
core   +7 more sources

Mechanochemically Prepared Highly Conductive Na2.88Sb0.88W0.12S4-NaI Composite Electrolytes for All-Solid-State Sodium Battery

open access: yesElectrochemistry, 2022
Solid electrolytes with high ionic conductivity, high formability, and high electrochemical properties are required to improve the performance of all-solid-state sodium batteries.
Takuma TAKAYANAGI   +5 more
doaj   +1 more source

The Seagrass Holobiont and Its Microbiome

open access: yesMicroorganisms, 2017
Seagrass meadows are ecologically and economically important components of many coastal areas worldwide. Ecosystem services provided by seagrasses include reducing the number of microbial pathogens in the water, providing food, shelter and nurseries for ...
Kelly Ugarelli   +3 more
doaj   +1 more source

Mechanochemical Synthesis of Potassium–Ion Conductor K3SbS4

open access: yesElectrochemistry
Antimony-based sulfide solid electrolytes exhibit high conductivity for alkaline cations. In this study, we synthesized K3SbS4 potassium-ion conductors using the mechanochemical method for the nominal compositions with x mol% excess K2S (x = 0, 5, 10 ...
Takehiro NAKAO   +6 more
doaj   +1 more source

Platinum group element mineralization at Musongati (Burundi) : concentration and Pd-Rh distribution in pentlandite [PDF]

open access: yes, 2017
The mafic-ultramafic intrusions of the Karagwe-Ankole belt in Burundi are considered as a new potential source for platinum group elements (PGE). The intrusions have mainly been studied for their PGE potential with regard to PGE concentration, but the ...
Dewaele, Stijn   +2 more
core   +1 more source

pH-Dependence of the Aqueous Phase Room Temperature Brønsted Acid-Catalyzed Chemoselective Oxidation of Sulfides with H2O2

open access: yesMolecules, 2015
A pH-dependence of the Brønsted acid-catalyzed oxidation of sulfides to the corresponding sulfoxides with H2O2 is reported for the first time based on our systematic investigation of the catalytic performance of a series of Brønsted acids. For all of the
Hai-Min Shen   +8 more
doaj   +1 more source

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