Results 61 to 70 of about 68,717 (304)

Magneto‐Ionic Devices With Polymer‐Based Electrolytes

open access: yesAdvanced Functional Materials, EarlyView.
Polymer electrolytes are introduced for magneto‐ionic devices based on hydroxide and hydrogen ions. The magneto‐ionic effect results in a pronounced voltage‐controlled variation of coercivity in both devices. The switching speed is in the range of 100 ms.
Markus Gößler   +3 more
wiley   +1 more source

Eletrodeposição e caracterização de camadas magnéticas de magnetita [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Ciência e Engenharia de Materiais, Florianópolis, 2010Filmes finos de magnetita (Fe3O4) foram eletrodepositados pelos métodos ...
Souza, Daniel Aragão Ribeiro de
core  

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

open access: yesAdvanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang   +5 more
wiley   +1 more source

Synthesis and use of magnetic nanoparticles for the adsorption of mercury from water

open access: yes, 2012
This study used magnetite (Fe3O4) nanoparticles (NPs), mesoporous silica coated magnetite NPs (SCMNPs) and thiol functionalised silica-coated magnetite nanoparticles (SH-SCMNPs) for Hg(II) removal and recovery from water.
Hakami, Othman
core   +1 more source

Hydrogenated TiO2 coated core-shell structure C/Fe3O4@rGO lithium battery anodes

open access: yesCailiao gongcheng, 2023
The hydrogenated TiO2 coated core-shell structure C/Fe3O4@rGO (H-TiO2/C/Fe3O4@rGO) composite material with oxygen vacancy defects was prepared by a simple method as high-performance anode material for lithium-ion batteries (LIBs).
WU Qichao   +4 more
doaj   +1 more source

Polyphenol‐Inspired Materials for Agricultural Applications

open access: yesAdvanced Materials, EarlyView.
This review outlines the use of polyphenol‐inspired materials for sustainable agriculture, highlighting their molecular design, interfacial assembly, structure–property relationships, and prospects toward precision agriculture, climate resilience, ecosystem protection, and circular bioeconomy strategies.
Haofu Liu   +8 more
wiley   +1 more source

Sonochemical Assisted Synthesis of Cr-PTC Metal Organic Framework, ZnO, and Fe3O4 Composite and Their Photocatalytic Activity in Methylene Blue Degradation

open access: yesBulletin of Chemical Reaction Engineering & Catalysis
Methylene blue pollutants can be treated by photocatalytic methods using metal oxide-based semiconductor materials and metal organic framework (MOF). These two materials are often coupled into a composite to improve their physicochemical properties and ...
Siti Nurbayti   +8 more
doaj   +1 more source

Fenton-like Degradation of Phenol over Fe3O4-CGGP

open access: yesTaiyuan Ligong Daxue xuebao, 2023
Magnetic geopolymer (Fe3O4-CGGP) was prepared from coal gangue, and evaluated by Fenton-like degradation of phenol. It was found that Fe3O4 with a particle size of 10-20 nm was uniformly dispersed on the surface of coal gangue geopolymer (CGGP).
Danlei WU   +5 more
doaj   +1 more source

Magnetic Fe3O4 nanoparticles and chemotherapy agents interact synergistically to induce apoptosis in lymphoma cells [PDF]

open access: yes, 2010
Hongmei Jing1, Jing Wang1, Ping Yang1, Xiaoyan Ke1, Guohua Xia2, Baoan Chen21Department of Hematology and Lymphoma Research Center, Peking University Third Hospital, Beijing, People’s Republic of China; 2Department of Hematology, The Affiliated
Xia, Guohua   +12 more
core   +1 more source

Defect‐Engineered Microwave‐Responsive Ni@C Composites From Waste PET for Catalytic Plastic Upcycling

open access: yesAdvanced Materials, EarlyView.
A circular upcycling strategy transforms waste poly(ethylene terephthalate) bottles into microwave‐responsive Ni@C catalyst featuring lattice‐distorted nickel cores and defective carbon shells. These strain‐rich heterointerfaces enhance dielectric loss and promote localized microwave hotspots, accelerating peroxymonosulfate activation and polymer‐chain
Xiao Lu   +7 more
wiley   +1 more source

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