Results 51 to 60 of about 2,824 (186)

Oxidation of Aqueous Sulfide by Chlorate: Implications for Native Sulfur Formation on Mars

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The recent discovery of native sulfur (“sulfur stones” consist of elemental sulfur) by Curiosity rover in the Gale Crater has sparked considerable research interest toward identifying its formation mechanisms that could generate novel insights into Martian sulfur cycling.
J. Wang, S. Kim, Z. Gold, R. L. Cheng, C. Muñoz‐Saez, N. M. Fernandez   +5 more
wiley   +1 more source

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

Advanced Engineering Materials, Volume 28, Issue 14, 22 July 2026.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho, M. Naeem, T. H. C. Costa, M. S. Libório, J. C. A. Queiroz, C. B. B. Luna, R. R. M. Sousa, P. S. Vieira, E. M. Araújo   +8 more
wiley   +1 more source

Chalcopyrite Nanoparticles as a Sustainable Thermoelectric Material [PDF]

Nanomaterials, 2015
In this report, copper iron sulfide nanoparticles with various composition were synthesized by a thermolysis based wet chemical method. These inherently sustainable nanoparticles were then fully characterized in terms of composition, structure, and morphology, as well as for suitability as a thermoelectric material.
Maninder Singh, Masanobu Miyata, Shunsuke Nishino, Derrick Mott, Mikio Koyano, Shinya Maenosono   +5 more
openaire   +3 more sources

Synergistic Cu‐Fe Interactions Enhance Phase Transformation Kinetics Toward High‐Performance CuFeS2‐Based All‐Solid‐State Batteries

Advanced Functional Materials, Volume 36, Issue 56, 13 July 2026.
CuFeS2 is found to induce the formation of intermediate phases, highlighting a strong Cu–Fe synergistic effect during conversion reactions in lithium all‐solid‐state batteries (Li‐SSBs). The integrated reaction pathway effectively suppresses phase separation and accelerates reaction kinetics, leading to enhanced electrochemical reversibility and ...
Changjiang Bai, Katherine A. Mazzio, Florian Ruske, Goutham Srinivas, Tim Bernges, Junwei Meng, Xiangping Min, Yanan Sun, Vinita Ahuja, Román Healy Corominas, Volodymyr Baran, Götz Schuck, Michael Haumann, Jürgen Janek, Wolfgang G. Zeier, Philipp Adelhelm   +15 more
wiley   +1 more source

The influence of NaCl on xanthate adsorption on chalcopyrite surface and chalcopyrite flotation

Minerals Engineering
Due to freshwater scarcity, mineral flotation plants have been using alternative water resources including seawater together with water recycling, resulting in the accumulation of salts in process water. However, how salts affect the adsorption of xanthates on the surfaces of sulphide minerals and subsequent sulphide mineral flotation is unclear.
Hwang, Minsu, Mu, Yufan, Cao, Liang, Peng, Yongjun   +3 more
openaire   +3 more sources

Ag‐Promoted Na Retention for Synergistic Defect Passivation in Kesterite Solar Cells

Advanced Energy and Sustainability Research, Volume 7, Issue 7, July 2026.
A synergistic Ag–Na codoping strategy in solution‐processed kesterite solar cells enables simultaneous lattice ordering and defect passivation. Ag promotes grain growth and Na retention, while Na enhances carrier concentration and reduces recombination.
Outman El Khouja, Yuancai Gong, Harris Goniotakis, Ivan Caño, David Rovira Ferrer, Alex Jiménez‐Arguijo, Oriol Segura‐Blanch, Romain Scaffidi, Claudia Malerba, Matteo Valentini, Francisco Hernández‐Ramírez, Sergio Giraldo, Marcel Placidi, Zacharie Jehl Li‐Kao, Edgardo Saucedo   +14 more
wiley   +1 more source

Effect of regrinding and pulp aeration on the flotation of chalcopyrite in chalcopyrite/pyrite mixtures

Powder Technology, 2014
Abstract In flotation, regrinding is used to increase the liberation of value minerals, such as chalcopyrite, from gangue minerals. As a result of the significant decrease in particle size following regrinding, flotation efficiency is generally worst.
Clement Owusu, Daniel Fornasiero, Jonas Addai-Mensah, Massimiliano Zanin   +3 more
openaire   +4 more sources

Compositions of Cu-(Fe)-Sulfides in the 109 Reduced Granite-Related Cu Deposit, Xinjiang, Northwest China: Implications to the Characteristics of Ore-Forming Fluids

Geofluids, 2020
In general, porphyry Cu deposit is related to the highly oxidized ore-forming system. However, there are many porphyry Cu deposits that are related to the reduced ore-forming system, and the ore-forming characteristics of reduced porphyry Cu deposit are ...
Rui Liu, Genwen Chen, Jianxing Yang
doaj   +1 more source

Silver‐Alloyed Wide‐Bandgap (Ag,Cu)(In,Ga)S2 Thin‐Film Solar Cells With 15.5% Efficiency

Progress in Photovoltaics: Research and Applications, Volume 34, Issue 7, Page 942-956, July 2026.
This study reports improvements in compositional homogeneity, microstructure, enhanced radiative recombination, and extended carrier lifetime of CIGS absorber via Ag incorporation. The optimal Ag‐alloyed CIGS solar cells achieve 15.5% PCE and 948 mV VOC, competing with the VOC of the Ag‐free reference sample from the same batch.
Yucheng Hu, Ece Washbrook, Arivazhagan Valluvar Oli, Andrea Griesi, Yurii P. Ivanov, Mariam Pelling, Simon M. Fairclough, Kulwinder Kaur, Michele Melchiorre, Adam Hultqvist, Tobias Törndahl, Wolfram Hempel, Wolfram Witte, Giorgio Divitini, Susanne Siebentritt, Rachel A. Oliver, Gunnar Kusch   +16 more
wiley   +1 more source

Effects of Thermal Pretreatment on the Oxidative Dissolution of Chalcopyrite: Electrochemical Study with Synthetic Minerals

Journal of MMIJ
Understanding the leaching mechanism of chalcopyrite from natural resources is important for expanding Cu production via hydrometallurgical processes.
Katsuya KOMORITA, Yu-ki TANINOUCHI, Hiroaki NAKANO   +2 more
doaj   +1 more source