Results 41 to 50 of about 3,676 (209)

Leaching Behavior of Copper Sulfide Concentrate in Sulfate–Chloride Media With Hydrogen Peroxide and Ethylene Glycol

Engineering Reports, Volume 8, Issue 5, May 2026.
Copper sulfide concentrate leaching in sulfate–chloride media was significantly enhanced by chloride ions and stabilized hydrogen peroxide. Ethylene glycol suppressed oxidant decomposition at high temperature, increasing copper recovery to 75.2% and overcoming chalcopyrite passivation through a surface‐reaction‐controlled mechanism.
Mohammadreza AziziKasin, Behzad Shahbazi
wiley   +1 more source

Trace Element Composition of Molybdenite: Deposit Type Discrimination and Limitations

, 2023
Molybdenite is a common sulfide hosting many trace elements. Trace elements in molybdenite from individual deposits have been widely used to constrain the source and conditions of ore-forming fluids.
Houmingrui Tan, Yumiao Meng, Xiaowen Huang, Mao Tan   +3 more
core   +1 more source

Molybdenite Re-Os dating of Mo-Th-Nb-REE rich marbles: pre-Variscan processes in Moldanubian Variegated Group (Czech Republic)

Geologica Carpathica, 2015
In an effort to contribute to the discussion concerning the age of rocks of the Moldanubian Variegated Group, we have undertaken Re-Os dating of molybdenite of banded carbonatite-like marbles (CLM) from the graphite mine Václav at Bližná (Southern ...
Drábek Milan, Stein Holly
doaj   +1 more source

Chemically‐Linked Heterostructures of Palladium Nanosheets and 2H‐MoS2

Small, Volume 22, Issue 25, 4 May 2026.
The photoresponse of MoS2 devices is extended to the near‐infrared region (up to 1700 nm) through chemical connection to Pd nanosheets (PdNS). A maleimide is used for covalent connection to MoS2, and a phenyl bromide moiety for linkage to the PdNS. In the absence of the chemical linker, van der Waals heterostructures show poorer enhancement of the ...
Ramiro Quirós‐Ovies, Pablo Bastante, Simon Hettler, Víctor Vega‐Mayoral, Sergio Aina, Vasileios Balos, Thomas Pucher, Andrés Castellanos‐Gomez, Raul Arenal, Juan Cabanillas‐Gonzalez, Emilio M. Pérez, Jesús Santamaría, Víctor Sebastian   +12 more
wiley   +1 more source

Study on flotation behavior and mechanism of separating chalcopyrite and Molybdenite with ethyl mercaptoglycolate as inhibitor [PDF]

, 2023
The effect of ethyl thioglycolate organic small molecule inhibitors on chalcopyrite molybdenite flotation behaviour is investigated via single mineral micro-flotation tests, zeta potential tests, and X-ray photoelectron spectroscopy (XPS) analysis ...
Xu-Zhao, Liu, Yao-Yao, Yang, Xiao-Feng, Yao-yao Liu, Xu Zhao, Xiao-feng Yang   +5 more
core   +1 more source

Direct Exfoliation of Natural SiO2-Containing Molybdenite in Isopropanol: A Cost Efficient Solution for Large-Scale Production of MoS2 Nanosheetes

Nanomaterials, 2018
The cost-effective exfoliation of layered materials such as transition metal dichalcogenides into mono- or few- layers is of significant interest for various applications.
Wenyan Zhao, Tao Jiang, Yujie Shan, Hongrui Ding, Junxian Shi, Haibin Chu, Anhuai Lu   +6 more
doaj   +1 more source

Pore Size Effects of Mesoporous N‐Doped Carbon Nanospheres as Advanced Support Material on the Activity of Molybdenum Sulfide Catalysts for the Hydrogen Evolution Reaction

Advanced Functional Materials, Volume 36, Issue 35, 30 April 2026.
By tuning the pore size of mesoporous N‐doped carbon (MPNC) nanospheres as support material for molybdenum sulfide, the electrochemical activity of the composite material for the hydrogen evolution reaction can be optimized. An ideal MPNC pore size of 60 nm allows a high number of molybdenum sulfide active sites while maintaining efficient proton and ...
Niklas Ortlieb, Christian Völker, Lars Guggolz, Anna Fischer   +3 more
wiley   +1 more source

Rock Formation Acid Mine Drainage in Epithermal Gold Mineralization, Pandeglang, Banten Province

JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2019
Mine acid water is acidic water and contains iron and sulfate, which is formed under natural conditions when geological strata containing pyrites are exposed to an oxidizing atmosphere or environment.
Dudi Nasrudin Usman, Sri Widayati, Sriyanti Sriyanti, Era Setiawan   +3 more
doaj   +1 more source

Mechanisms of Temperature‐Dependent Hysteresis in Freestanding BaTiO3/MoS2 Heterostructures [PDF]

Advanced science
Freestanding ferroelectric BaTiO3 membranes are combined with monolayer MoS2 into 2D field‐effect transistors. At room temperature they provide ultrahigh‐κ gating with steep subthreshold swing and minimal hysteresis. Upon cooling, strong ferroelectric switching produces two stable memory states with long retention times.
Pucher T, Mompeán F, Rouco V, León C, Santamaría J, Munuera C, García‐Hernández M, Castellanos‐Gomez A.   +7 more
europepmc   +2 more sources

The Effect of Temperature and Physical State of Water on the Frictional Properties of Chlorite‐Altered Basaltic Gouges (Krafla Geothermal Field, Iceland)

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Changes in the physical state of water may alter fault frictional properties in high‐temperature geothermal systems, yet they have been little studied. Here, we perform slide‐hold‐slide experiments to examine the frictional properties (frictional strength μss and frictional healing Δμ) of chlorite‐altered basalt from Krafla Geothermal Field ...
W.‐H. Wu, W. Feng, R. Gomila, T. Tesei, A. K. Mortensen, G. Di Toro   +5 more
wiley   +1 more source