Results 91 to 100 of about 405,346 (229)

Multifunctional Solid Polymer Electrolyte Films Integrating Intrinsic Self‐Healing and Dual Photo‐/pH‐Responsive Ionic Sensing for Intelligent Flexible Electronics

open access: yesAdvanced Functional Materials, Volume 36, Issue 72, 7 September 2026.
Multifunctional solid polymer electrolyte (SPE) films integrating intrinsic self‐healing, mechanical stretchability, and dual photo‐ and pH‐responsive ionic conductivity are developed. Constructed from thermoplastic polyurethane (TPU) and hydrogen‐bonded poly(thiourea triethylene glycol) (PTUEG3), these films form a dynamic supramolecular network ...
Mei‐Li Li   +12 more
wiley   +1 more source

Sustainable Metal Recovery From E‐Waste: Exploring Greener Leachates in Hydrometallurgical Processes

open access: yesMetalMat, Volume 3, Issue 3, September 2026.
Recycling of electronic waste to synthesize valuable metals using green leachate. ABSTRACT The accumulation of electronic waste (e‐waste) poses environmental hazards and leads to the loss of valuable metals such as gold, silver, copper, and rare earth elements.
Shassatha Paul Saikat   +4 more
wiley   +1 more source

Transition Metal Chalcogenides: Perspectives on Their Applications for Nitrate Reduction

open access: yesChemistryOpen, Volume 15, Issue 9, September 2026.
This review paper reports the syntheses, properties, and applications of TMCs for electrochemical reduction of nitrate to ammonia. Various studies revealed that the conversion of nitrate to ammonia is principally the electrocatalytic hydrogenation of nitrate and the rate and yield of ammonia is competitively challenged by hydrogen evolution reaction ...
Martins O. Omorogie
wiley   +1 more source

Leaching of finely disseminated gold ore with cyanide and thiourea solutions

open access: yes, 2003
In this study, the aim was to investigate the gold recovery from finely disseminated ore by using thiourea as an alternative to the cyanidation process.
Gonen, N
core   +1 more source

Enhanced Recovery of Lithium and Cobalt from Spent Lithium-Ion Batteries Using Ultrasound-Assisted Deep Eutectic Solvent Leaching

open access: yesMetals
This study investigates the ultrasound-assisted leaching of Li and Co from spent batteries using a deep eutectic solvent (DES) composed of polyethylene glycol and thiourea.
Tlek Ketegenov   +4 more
doaj   +1 more source

Analysis and Prospects of Cyanide-Free Methods for In Situ Borehole Leaching of Precious Metals

open access: yesMetals
The declining quality of primary mineral resources necessitates the development of new approaches to the recovery of precious metals. One promising approach is in situ borehole leaching (ISL), which has been successfully applied to the recovery of ...
Bagdaulet Kenzhaliyev   +3 more
doaj   +1 more source

Thiourea leaching of gold bearing mine wastes from Madjarovo processing plant in SE Bulgaria

open access: yes, 2000
peer reviewedFlotation tailings derived from processing of complex sulphide gold-bearing ores have been repropcessed by means of thiourea leaching.
Gaydardzhiev, Stoyan
core  

1-(3-Chlorophenyl)-3-(2,6-dichlorobenzoyl)thiourea [PDF]

open access: yes, 2009
The structure of the title compound, C14H9Cl3N2OS, is composed of discrete molecules with bond lengths and angles quite typical for thiourea compounds of this class. The plane containing the thiocarbonyl and carbonyl groups subtends dihedral angles of 48.
Bolte, Michael   +5 more
core   +1 more source

Adsorption of Gold(I) and Gold(III) Using Multiwalled Carbon Nanotubes

open access: yesApplied Sciences, 2018
Carbon nanotubes are materials that have been investigated for diverse applications including the adsorption of metals. However, scarce literature has described their behavior in the case of the adsorption of precious metals.
Francisco Jose Alguacil
doaj   +1 more source

Recoveries of Ru(III) and Co(II) by Solvent Extraction and Ion Exchange from Tungsten Carbide-Cobalt Scrap through a HCl Leaching Solution

open access: yesMetals, 2019
The addition of ruthenium to tungsten carbide-cobalt hard metals improves their mechanical properties. Since ruthenium is a platinum group metal, the recovery of ruthenium together with cobalt from the scrap of hard metals is of great importance.
Hyeong Hun Ahn, Man Seung Lee
doaj   +1 more source

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