Results 81 to 90 of about 113,868 (281)

Preparation and characterization of antibacterial silver loaded montmorillonite under microwave irradiation

Science and Engineering of Composite Materials, 2013
Silver loaded montmorillonite (Ag-MMT) was prepared by ion exchange reaction under microwave irradiation. The effects of microwave irradiation time, AgNO3 concentration, and microwave power on the silver content of Ag-MMT were investigated using the ...
Li Tian, Zhang Yuanyuan, Song Zhiyong, Wu Hongtao, Li Shuhao   +4 more
doaj   +1 more source

Heating causes non-linear microwave absorption anomaly in single wall carbon nanotubes [PDF]

, 2018
Microwave impedance measurements indicate a non-linear absorption anomaly in single wall carbon nanotubes at low temperatures (below $20$ K). We investigate the nature of the anomaly using a time resolved microwave impedance measurement technique.
Csősz, Gábor, Gyüre, Balázs, Karsa, Anita, Márkus, Bence Gábor, Márkus, Ferenc, Simon, Ferenc, Sági, Olivér   +6 more
core   +2 more sources

Tailoring Microstructure in Copper‐Based Conductive Metal–Organic Frameworks for Enhanced Chemiresistive Sensing and Uptake of Sulfur Dioxide

Advanced Functional Materials, EarlyView.
Precursor‐ and solvent‐mediated synthesis yields four Cu3(HHTP)2 morphologies with distinct physicochemical, sorption, and sensing properties toward SO2. Uptake capacities correlate with BET surface area, while sensing performance scales with particle aspect ratio.
Patrick Damacet, Zhuoran Zhong, Elí Sánchez‐González, Camille L. Slagle, Ilich A. Ibarra, Katherine A. Mirica   +5 more
wiley   +1 more source

Principais aplicações das microondas na produção e refino de petróleo Principal applications of microwaves in production and refining of petroleum

Química Nova, 2008
Microwave irradiation offers a clean, inexpensive, and convenient method of heating, which is an alternative way of introducing energy into chemical systems.
Montserrat Fortuny, André Luis Dantas Ramos, Cláudio Dariva, Sílvia Maria da Silva Egues, Alexandre Ferreira Santos, Márcio Nele, Raquel Campos Cauby Coutinho   +6 more
doaj   +1 more source

Direct-current control of radiation-induced differential magnetoresistance oscillations in two-dimensional electron systems

, 2007
Magnetoresistance oscillations in two-dimensional electron systems driven simultaneously by a strong direct current and a microwave irradiation, are analyzed within a unified microscopic scheme treating both excitations on an equal footing. The microwave-
Ryzhii V. I., X. L. Lei
core   +1 more source

High‐Entropy Perovskite Nanofibers for Bifunctional Air Electrodes in Reversible Protonic Ceramic Electrochemical Cells

Advanced Functional Materials, EarlyView.
High‐entropy perovskite nanofibers serve as robust and active bifunctional air electrodes in reversible protonic ceramic electrochemical cells. Their compositional complexity stabilizes the lattice, enriches oxygen vacancies, and accelerates surface exchange.
Hyeonggeun Kim, Incheol Jeong, Seeun Oh, Dongyeon Kim, Kang Taek Lee   +4 more
wiley   +1 more source

Experimental Investigation into the Law of Rock Breaking Through the Combination of Microwave Irradiation and Cutting Tools Under Multiple Conditions

Buildings
Microwave irradiation of rocks can reduce the strength of rocks and ease their subsequent excavation. Exploring the combination of microwave and cutting tools for rock breaking under different conditions is important to the practical engineering ...
Xiang-Xin Su, Zheng-Wei Li, Yang-Yi Zhou, Shi-Ping Li   +3 more
doaj   +1 more source

Microwave-Assisted Noncatalytic Esterification of Fatty Acid for Biodiesel Production: A Kinetic Study

Energies, 2020
This study developed a microwave-mediated noncatalytic esterification of oleic acid for producing ethyl biodiesel. The microwave irradiation process outperformed conventional heating methods for the reaction.
Hoang Chinh Nguyen, Fu-Ming Wang, Kim Khue Dinh, Thanh Truc Pham, Horng-Yi Juan, Nguyen Phuong Nguyen, Hwai Chyuan Ong, Chia-Hung Su   +7 more
doaj   +1 more source

Variable frequency microwave (VFM) processing facilities and application in processing thermoplastic matrix composites [PDF]

, 2003
Microwave processing of materials is a relatively new technology advancement alternative that provides new approaches for enhancing material properties as well as economic advantages through energy savings and accelerated product development.
Ball, J. A. R., Ku, H. S., Siores, E., Siu, F.   +3 more
core   +1 more source

A Tracer Diffusion Study of Diverse Photo‐Ionic Phenomena in Strontium Titanate

Advanced Functional Materials, EarlyView.
Two strong interfacial photo‐ionic effects are demonstrated for the model system SrTiO3 through the application of isotope exchange experiments: UV illumination is found to enhance the oxygen surface exchange coefficient by several orders of magnitude and to depress the surface space‐charge potential substantially.
David M. Schwenkel, Timon F. Kielgas, George F. Harrington, Roger A. De Souza   +3 more
wiley   +1 more source