Results 51 to 60 of about 456 (131)

Microwave‐Assisted Recycling of Lithium‐Ion Batteries: Linking Process Optimization to Volatile Organic Compounds and Fluorinated Gases Emission Mitigation

Battery Energy, Volume 5, Issue 2, March 2026.
Microwave‐assisted recycling of black mass from spent lithium‐ion batteries was optimized through a Design of Experiments approach, linking heating parameters to lithium recovery efficiency and volatile emissions. Combining GC–MS and multinuclear NMR analyses, the study identifies key conditions minimizing hazardous fluorinated and organic gas ...
Alberto Mannu, Giacomo Luigi Petretto, Erica Pietrobelli, Alessandro Bonometti, Maria Enrica Di Pietro, Andrea Mele, Laura Eleonora Depero, Elza Bontempi   +7 more
wiley   +1 more source

Efficient Recycling of Spent LiCoO2 Cathodes Via Confined Pore‐Assisted Simplified Direct Carbothermic Reduction Without External Reducing Agents

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 2, March 2026.
A simplified direct carbothermic reduction (SDCR) process is developed for efficient recycling of spent LiCoO2 cathodes. The SDCR method employs carbon conductive agents and organic binders embedded in the electrode as internal reducing agents, while the confined pores of calendered electrodes promote the retention of in situ generated reduction gases.
Donghun Kang, Joowon Im, Sujong Chae, Haeseong Jang, Minseong Ko   +4 more
wiley   +1 more source

Synthesis of high purity rutile nanoparticles from medium-grade Egyptian natural ilmenite

Beni-Suef University Journal of Basic and Applied Sciences, 2015
The Egyptian magmatic ilmenite is classified as a medium-grade ore. The present work is an attempt to produce a high-quality TiO2 that can be used in several industries from this medium-grade raw material using the mechanical activation, carbothermic ...
Mohamed G. Shahien, Mohamed M.H. Khedr, Ayman E. Maurice, Ahmed A. Farghali, Rabea A.M. Ali   +4 more
doaj   +1 more source

Eco‐Efficient Processing and Refining Routes for Secondary Raw Materials from Silicon Ingot and Wafer Manufacturing

Advanced Energy and Sustainability Research, Volume 7, Issue 2, February 2026.
The ICARUS project developed pilot‐scale processes to recover and refine secondary raw materials from silicon photovoltaic (PV) ingot and wafer manufacturing waste. Silicon kerf, graphite, and silica residues are purified into high‐value inputs for the PV value chain and beyond.
Martin Bellmann, Berhane Darsene Dimd, Anne‐Karin Søiland, Arne Dahle, C. Landaas, Victorien Iwaszko, Rene Peche, Wolfram Palitzsch, Philippe Lenain, Iratxe de Meatza, Theodora Kyratsi, Liu Huiping, Emanuele Milani, Guy Chichignoud, Stefan Fischer, Almut Schwenke, Eirik Nordboe, Marco Pieterse, Roland Riva   +18 more
wiley   +1 more source

Perovskite‐Type Metal Oxides and the Role of Carbon Materials in Zn‐Based Aqueous Batteries

Advanced Energy and Sustainability Research, Volume 7, Issue 2, February 2026.
Carbon materials play a critical role in perovskite‐type metal oxide cathodes for zinc‐based batteries. Beyond improving electrical conductivity, carbon actively participates in oxygen reduction and evolution reactions, forming metal–oxygen carbon bonds that enhance catalytic performance.
Mario García‐Rodríguez, Diego Cazorla‐Amorós, Emilia Morallón   +2 more
wiley   +1 more source

Controlled preparation of silicon and magnesium silicide on silica glass substrate through magnesiothermic reduction

International Journal of Ceramic Engineering & Science, 2020
Magnesiothermic reduction has received attention as a method to produce silicon retaining the morphology of the silicon dioxides that serve as the starting materials of the reduction.
Takashi Henmi, Takeshi Shiono, Keisuke Matsubara, Tsutomu Kiyomura, Hiroki Kurata, Takashi Wakasugi, Arifumi Okada, Kohei Kadono   +7 more
doaj   +1 more source

Direct Production of Ferrochrome by Segregation Reduction of Chromite in the Presence of Calcium Chloride

Metals, 2018
A solid reduction process is described whereby chromite is reduced with the help of calcium chloride to produce ferrochrome alloy powders with high metal recovery. The process involves segregation reduction of chromite using graphite as the reductant and
Dawei Yu, Dogan Paktunc
doaj   +1 more source

Thermodynamic modeling of silicon carbide formation during the Acheson process in non-stoichiometric mixtures

Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук
A brief review and critical evaluation of the literature related to the mechanism of carbothermic reduction of silicon oxide is presented. To resolve the contradictions in the literature data about the number of chemical reactions and key intermediate ...
V. B. Shcherbakova, P. S. Grinchuk
doaj   +1 more source

Microstructure Evolution and Phase Transformation of Iron Produced from the Sustainable Carbothermic Reduction Process of High-Pressure Acid Leaching Residue. [PDF]

ACS Omega, 2023
Setiawan A, Harjanto S, Kawigraha A, Ikhwani N, Rhamdhani MA.   +4 more
europepmc   +1 more source

A Kinetic Study on the Carbothermic Reduction of Molybdenite in the Presence of Sodium Carbonate

Journal of Advanced Materials in Engineering, 2015
in this research, the kinetics of carbothermic reduction of molybdenite in the presence of sodium carbonate was studied. For this purpose, mixed powder of molybdenite, graphite, and sodium carbonate with 1:4:2 mole ratio was investigated using ...
K. Sheybani, M.H. Abbasi, M. Shamanian
doaj