Results 91 to 100 of about 1,843,878 (304)

Comparative Analysis of Lead Ions and Ammonium Salts in Malachite Sulfurization-Assisted Flotation Based on Surface Layer Durability

Metals
Sulfurization-assisted flotation is a key process that uses sulfur compounds to modify mineral surfaces, enhancing hydrophobicity and flotation efficiency, especially for copper oxide minerals.
Ayman M. Ibrahim, Han Wang, Peilun Shen, Dianwen Liu   +3 more
doaj   +1 more source

Exploring the ternary interactions in Cu–ZnO–ZrO2 catalysts for efficient CO2 hydrogenation to methanol

Nature Communications, 2019
Despite great efforts, the reaction mechanism of CO2 hydrogenation to methanol and the nature of the active sites on Cu–ZnO–ZrO2 (CZZ) catalysts are still under debate. Herein, the authors report the interactions among the three components in controlling
Yuhao Wang, Shyam Kattel, Wengui Gao, Kongzhai Li, Ping Liu, Jingguang G. Chen, Hua Wang   +6 more
doaj   +1 more source

Metal Complex

The scientific community has given Schiff-based metallic complexes much attention because of their distinctive properties and numerous uses in a variety of fields, including biology and industry. The nature of the ligands and metal ions influences coordination chemistry.
Shilpa Laxman Sangle, Rekha Barku More, Savita V. Thakare   +2 more
openaire   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Enhancing Sulfidization and Flotation of Smithsonite Using Eco-Friendly Triethanolamine: Insights from Experimental and Simulation Studies

Molecules
Triethanolamine (TEA) is a promising eco-friendly alternative to inorganic ammonia for enhancing surface sulfidization and flotation recovery of smithsonite.
Song Zhang, Guanyu Liang, Yongjun Xian, Shuming Wen   +3 more
doaj   +1 more source

Surface Atom Motion to Move Iron Nanocrystals through Constrictions in Carbon Nanotubes under the Action of an Electric Current

, 2013
Under the application of electrical currents, metal nanocrystals inside carbon nanotubes can be bodily transported. We examine experimentally and theoretically how an iron nanocrystal can pass through a constriction in the carbon nanotube with a smaller ...
Coh, Sinisa, Cohen, Marvin L., Gannett, Will, Louie, Steven G., Zettl, A.   +4 more
core   +1 more source

Phytic Acid-Metal Complexes.

Experimental Biology and Medicine, 1965
SummarySodium phytate corresponding to a formula of C6H6O24P6Na12 · 3H2O (formula weight 977.8) was titrated against metal ions and in each case an inflection in the titration curve was obtained when 5 moles of a divalent metal ion had been added per mole sodium phytate.
P, Vohra, G A, Gray, F H, Kratzer
openaire   +2 more sources

Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling

Advanced Engineering Materials, EarlyView.
Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer, Eric R. Hoglund, Anton V. Ievlev, Patrick E. Hopkins   +3 more
wiley   +1 more source

A Complex Evaluation and Optimization Approach for Oxygen-Enriched Combustion Characteristics of Blended Fuels Based on Response Surface Methodology

Complexity, 2020
With the energy consumption increasing, the coal supply in China has been becoming tight, which has made it difficult for thermal power generation in Yunnan Province.
Y. C. Liu, H. Zhang, Z. M. Luo, S. Qing, A. M. Zhang, S. P. Yang   +5 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source