Results 31 to 40 of about 2,215,063 (343)

Properties of Anion Exchange Membranes with a Focus on Water Electrolysis

open access: yesMembranes, 2022
Recently, alkaline membrane water electrolysis, in which membranes are in direct contact with water or alkaline solutions, has gained attention. This necessitates new approaches to membrane characterization. We show how the mechanical properties of FAA3,
Hamza Khalid   +4 more
doaj   +1 more source

Thermal Conductivity of Polymers and Their Nanocomposites [PDF]

open access: yesAdvances in Materials, 2018
Polymers are usually considered as thermal insulators, and their applications are limited by their low thermal conductivity. However, recent studies have shown that certain polymers have surprisingly high thermal conductivity, some of which are ...
Xiangfan Xu   +3 more
semanticscholar   +1 more source

Theoretical Verification of Photoelectrochemical Water Oxidation Using Nanocrystalline TiO2 Electrodes

open access: yesMolecules, 2015
Mesoscopic anatase nanocrystalline TiO2 (nc-TiO2) electrodes play effective and efficient catalytic roles in photoelectrochemical (PEC) H2O oxidation under short circuit energy gap excitation conditions. Interfacial molecular orbital structures of (H2O)
Shozo Yanagida   +4 more
doaj   +1 more source

Structural and Electrotransport Properties of Perfluorinated Sulfocationic Membranes Modified by Silica and Zirconium Hydrophosphate

open access: yesMembranes, 2022
A correlation between changes in structural and electrotransport properties of membranes after modification by silica and zirconium hydrophosphate was established.
Svetlana A. Shkirskaya   +2 more
doaj   +1 more source

The tunable permittivity of multi-walled carbon nanotubes/silver nanoparticles reinforced polyvinyl alcohol (PVA) nanocomposites at low frequency

open access: yesMaterials Research Express, 2018
This paper is about tailoring high permittivity of multi-walled carbon nanotubes/silver nanoparticles (MWNT-AgNP) filled polyvinyl alcohol (PVA) nanocomposites at low frequency. PVA/MWNT-AgNP nanocomposites were synthesized via solution-casting technique
Yusliza Yusof   +3 more
doaj   +1 more source

Rheological and dielectric properties of different gold nanoparticle sizes

open access: yesLipids in Health and Disease, 2011
Background Gold nanoparticles (GNPs) have found themselves useful for diagnostic, drug delivery and biomedicine applications, but one of the important concerns is about their safety in clinical applications.
Abdelhalim Mohamed Anwar K   +2 more
doaj   +1 more source

Nonmonotonic (in concentration) conductivity of aqueous solutions of fungal melanin

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2018
The conductivity of aqueous (distilled and natural water) solutions of fungal melanin (purified and non-purified) has been studied. It has been shown that, in the presence of impurities, the conductivity of solution increases (for the concentration 0.1 ...
O.V. Kovalchuk, T.M. Kovalchuk
doaj   +1 more source

Longitudinal conductivity of massless fermions with tilted Dirac cone in magnetic field [PDF]

open access: yes, 2015
We investigate a longitudinal conductivity of a two-dimensional relativistic electron gas with a tilted Dirac cone in magnetic field. It is demonstrated that the conductivity behaves differently in the directions parallel and perpendicular to the tilting
Ogata, Masao   +2 more
core   +1 more source

Processing and characterization of CaTiO3 perovskite ceramics [PDF]

open access: yesProcessing and Application of Ceramics, 2014
Calcium titanate (CaTiO3) ceramics with perovskite structure were produced by solid state reaction. Calcium carbonate (CaCO3) and titanium dioxide (TiO2) were mixed (in molar ratios 1/1 and 3/2), and the obtained mixtures were calcined at 1150 °C in ...
Guilherme Gralik   +4 more
doaj   +1 more source

Prediction of Thermo-Physical Properties of TiO2-Al2O3/Water Nanoparticles by Using Artificial Neural Network [PDF]

open access: yes, 2020
In this paper, an artificial neural network is implemented for the sake of predicting the thermal conductivity ratio of TiO2-Al2O3/water nanofluid. TiO2-Al2O3/water in the role of an innovative type of nanofluid was synthesized by the sol–gel method. The
Ahmadi, Mohammad Hossein   +6 more
core   +2 more sources

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