Results 91 to 100 of about 233,253 (265)

Production of ZnO Nanofibers from Zinc Galvanizing Flue Dust

Metals
This work focuses on the production of ceramic nanofibers from waste materials, which represents a significant contribution to the sustainable use of resources and innovative solutions in the field of nanotechnology.
Klaudia Kundráková, Jana Pirošková, Jarmila Trpčevská, Erika Múdra   +3 more
doaj   +1 more source

Gardiquimod Nanoemulsion Targets Cutaneous Leishmaniasis Lesions Reducing Systemic Toxicity and Parasite Burden

Advanced Healthcare Materials, EarlyView.
Nanoemulsion delivery of a TLR7 agonist enhances safety and promotes colocalization with Leishmania‐infected macrophages in skin lesions, enabling a ∼2‐log reduction in parasite burden. However, tissue‐level constraints and TLR‐driven regulatory feedback generate a mixed immune response that limits complete parasite clearance.
Carmen Palomino‐Cano, M. Carmen Mera‐Delgado, Esther Moreno, Esther Larrea, Lecnia Aguirre, Jonathan Miguel Zanatta, Sónia Barros‐Carvalho, Iola F. Duarte, Ricardo Silvestre, Juan M. Irache, Javier Carrión, Socorro Espuelas   +11 more
wiley   +1 more source

Selective Extraction of Lithium from Li Batteries by Leaching the Black Mass in Oxalic Acid

Batteries
In this work, a method for leaching black mass from spent Li batteries using oxalic acid was developed and experimentally verified with the objective of selectively separating lithium and cobalt.
Kristina Talianova, Martina Laubertová, Zita Takáčová, Jakub Klimko, Jaroslav Briančin, Simon Nagy, Dušan Oráč   +6 more
doaj   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Two-dimensional correlation infrared spectroscopy reveals the evolution of functional groups governing biochar oxidation resistance

Scientific Reports
To investigate the mechanistic pathways and intrinsic stability of biochar functional groups under controlled oxidation, a novel approach integrating Fourier transform infrared two-dimensional correlation spectroscopy (2D-COS) and moving window 2D-COS ...
Xiaoxiao Zhang, Xiangru Yuan, Xueqi Yang, Zengling Yang, Lujia Han   +4 more
doaj   +1 more source

COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption

Advanced Materials, EarlyView.
A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas, Lucía Torrico‐García‐Viso, Jose Antonio Suárez del Pino, Nekane Aramburu‐Merino, Pilar Segovia, Enrique G. Michel, Josep Puigmartí‐Luis, Enrique Velasco, Pedro Tarazona, Daniel Maspoch, David Rodríguez‐San‐Miguel, Félix Zamora   +11 more
wiley   +1 more source

Enhancing Hydrogen Embrittlement Resistance of Al–Zn–Mg–Cu Alloys via Si Microalloying and Optimized Heat Treatment

Metals
7xxx series aluminum alloys are critical structural materials in aerospace applications, but their susceptibility to hydrogen embrittlement (HE) poses significant challenges to service safety and durability.
Huijun Shi, Ruian Hu, Yi Lu, Shengping Wen, Wu Wei, Xiaolan Wu, Kunyuan Gao, Hui Huang, Zuoren Nie   +8 more
doaj   +1 more source

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

Advanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska, Leire Unanue, Itxaso Calafel, Dorleta Otaegui, Jorge L. Olmedo‐Martínez, Lourdes Irusta, Daniel Vinagre, Nora Aranburu, Nerea Casado, Ibon Odriozola, David Mecerreyes   +10 more
wiley   +1 more source

Approaching fully equiaxial grains of Er/Zr modified selective laser melted Al–Mg–Mn alloys

Journal of Materials Research and Technology
In this study, high-strength Al-8.5Mg-0.78Mn-0.96Er-1.94Zr alloys are prepared by selective laser melting(SLM). The microstructure and mechanical properties of the Al–Mg–Mn–Er–Zr alloys in the as-built and heat-treated states are investigated.
Wu Wei, Yuyan Zhai, Jifei Hu, Jianlei Bi, Zhengjiang Gao, Jiaoxi Yang, Xiaorong Zhou, Xiaolan Wu, Shengping Wen, Hui Huang, Li Rong, Kunyuan Gao, Zuoren Nie   +12 more
doaj   +1 more source

Recycling. Recycling of Precious Metals.

Shigen-to-Sozai, 1997
Brief historical and commercial information precedes a statement of the sources of ‘secondary precious metals’ materials and a discussion of the pyrometallurgical and chemical treatment circuits. Examples are given of the evaluation methods of materials being treated and pre-sampling methods of treatment and plant used are outlined.
openaire   +2 more sources