Results 81 to 90 of about 277,305 (372)

Magnetic and Structural Properties of A-Site Ordered Chromium Spinel Sulfides: Alternating Antiferromagnetic and Ferromagnetic Interactions in the Breathing Pyrochlore Lattice [PDF]

J. Phys. Soc. Jpn. 87, 034709(1-8) (2018), 2018
We report a comprehensive study on the magnetic and structural properties of the spinel sulfides LiInCr4S8, LiGaCr4S8, and CuInCr4S8, where Li+/Cu+ and Ga3+/In3+ ions form a zinc-blende-type order. On the basis of synchrotron X-ray diffraction and magnetization data obtained using polycrystalline samples, these three sulfides are suggested to be ...
arxiv   +1 more source

Molybdenum-catalyzed enantioselective sulfoxidation controlled by a nonclassical hydrogen bond between coordinated chiral imidazolium-based dicarboxylate and peroxido ligands [PDF]

, 2018
Chiral alkyl aryl sulfoxides were obtained by molybdenum-catalyzed oxidation of alkyl aryl sulfides with hydrogen peroxide as oxidant in mild conditions with high yields and moderate enantioselectivities.
Carrasco Carrasco, Carlos Jesús, Galindo del Pozo, Agustín, Montilla Ramos, Francisco Javier   +2 more
core  

The Spitzer Spectroscopic Survey of S-type Stars [PDF]

, 2012
S-type AGB stars are thought to be in the transitional phase between M-type and C-type AGB stars. Because of their peculiar chemical composition, one may expect a strong influence of the stellar C/O ratio on the molecular chemistry and the mineralogy of ...
A. A. Zijlstra, Acke, Allamandola, Andersen, B. Acke, Begemann, Begemann, Blommaert, Brown, Cami, Cardelli, Carpenter, Cau, Chan, Cherchneff, Cherchneff, Chiar, D. Barry, D. Ladjal, DePew, Dijkstra, Drimmel, F. van Wyk, Fabian, Ferrarotti, Ferrarotti, G. C. Sloan, Gielen, Goebel, Groenewegen, Grossman, Guandalini, Gustafsson, H. Van Winckel, Henning, Heras, Herwig, Higdon, Hoefner, Hony, Hony, Höfner, Höfner, Iben, J. A. D. L. Blommaert, J. Cami, J. Menzies, J. Th. van Loon, Jaeger, Jura, Justtanont, K. Exter, K. Smolders, Keller, L. Decin, Lagadec, Lebzelter, Leisenring, Lorenz-Martins, M. A. T. Groenewegen, M. Desmet, M. Feast, M. Matsuura, Marshall, Martin, McCabe, McDonald, Mutschke, Mutschke, N. Cox, Onaka, P. de Cat, P. Degroote, P. Neyskens, Peeters, Pendleton, Piccirillo, Pitman, Pojmanski, Pojmański, Posch, Posch, R. Sahai, R. Østensen, Raskin, S. Bloemen, S. Hony, S. Saesen, S. Uttenthaler, S. Van Eck, Schutte, Sloan, Sloan, Sloan, Sloan, Sloan, Smith, Smolders, Stencel, T. Verhoelst, Tielens, Treffers, Uttenthaler, Van Eck, Van Eck, van Loon, Vardya, Volk, W. Zima, Woitke, Woźniak, Zechmeister, Zhukovska, Zijlstra   +113 more
core   +3 more sources

Effects of Chemical Pressure on Superconductivity in Electrochemically Intercalated (TMA)yFe2(Se1−xSx)2 (TMA = Tetramethylammonium)

Advanced Functional Materials, EarlyView.
Intercalation of a series of FeSe1−xSx host crystals with tetramethylammonium cations (TMA+) linearly scales the critical temperature Tc from 43 K down to 28 K with increasing sulfur incorporation. The chemical pressure induced by the partial substitution shows a weakening of the superconducting properties in both hosts and intercalates in a remarkably
Nadine Lammer, Dominik Werhahn, Leonard Moritz, Dirk Johrendt   +3 more
wiley   +1 more source

Scientific Opinion on Flavouring Group Evaluation 91, Revision 2 (FGE.91Rev2): Consideration of simple aliphatic and aromatic sulphides and thiols evaluated by the JECFA (53^rd and 68^th meetings) structurally related to aliphatic and alicyclic mono-, di-, tri-, and polysulphides with or without additional oxygenated functional groups evaluated by EFSA in FGE.08Rev5 (2012) [PDF]

EFSA Journal, 2014
The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids of the European Food Safety Authority was requested to consider evaluations of flavouring substances assessed since 2000 by the Joint FAO/WHO Expert Committee on Food Additives
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)
doaj   +1 more source

GOLD IN THE ORE OF THE GOLD-PYRITE DEPOSIT ABYZ (CENTRAL KAZAKHSTAN)

Известия Томского политехнического университета: Инжиниринг георесурсов, 2021
Relevance of the research. More than 20 gold-pyrite deposits are known in the Chingiz-Tarbogatai structural-formational zone. All deposits have one problem in common: during ore dressing, a significant part of the gold goes into the «pyrite» concentrate ...
Aleksey K. Mazurov, Anastasiya N. Nikolayeva, Maksim A. Rudmin, Tamara Y. Yakich, Aleksey S. Ruban, Shynar Z. Baybolova   +5 more
doaj   +1 more source

Making Photoresponsive Metal–Organic Frameworks an Effective Class of Heterogeneous Photocatalyst

Advanced Functional Materials, EarlyView.
This review summarizes photoresponsive MOFs for photocatalytic applications, focusing on their capacity to enhance light harvesting, charge transfer, and surface reactions. While existing studies provide foundational insights, emerging characterization techniques enable a deeper understanding of photoresponsive MOFs.
Rui Liu, Hao Wu, Hoi Ying Chung, Yun Hau Ng   +3 more
wiley   +1 more source

Trace-elements in sulfides of the Dergamysh cobalt-bearing massive sulfide deposit, the Southern Urals: Mode of occurrence and matter sources

Литосфера, 2020
Subject of study. The article presents the results of study of trace elements (TEs) in sulfides of the main ore body (borehole 1T) and the northwestern ore body (borehole 200) of the Dergamysh cobalt-bearing massive sulfide deposit hosted in ...
I. Yu. Melekestseva, V. V. Maslennikov, S. P. Maslennikova   +2 more
doaj   +1 more source

Enhanced oxygen and hydrogen evolution reaction by zinc doping in cobalt–nickel sulfide heteronanorods

Electrochemical Science Advances, 2021
Developing highly efficient electrocatalysts for the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) is critical to enable electrical‐to‐hydrogen energy conversion technologies to reality.
Jing Du, Zehua Zou, Cailing Xu
doaj   +1 more source

Sulfur analysis of Bolu-Mengen lignite before and after microbiological treatment using reductive pyrolysis and gas chromatography/mass spectrometry [PDF]

, 2005
Atmospheric pressure-temperature programmed reduction coupled with on-line mass spectrometry (AP-TPR/MS) is used for the first time on microbiologically treated coal samples as a technique to monitor the degree of desulfurization of the various sulfur ...
Bozdemir T., Brown S. D., Durusoy T., Durusoy T., Gryglewicz G., J. Yperman, Jagtoyen M., Juszczak A., Karavaiko G. I., Klein J., Maes I. I., Maes I. I., Maes I. I., Mullens S., Olson G., Olsson G., R. Carleer, Rutkowski P., S. Mullens, Selsbo S., Stefanova M., T. Bozdemir, T. Durusoy, Van Aelst J., Van Aelst J., Y. Yürüm, Yperman J., Álvarez R.   +27 more
core   +1 more source