Results 41 to 50 of about 24,336 (264)

Electrically Induced Phase Transition and Synaptic Functionality in MoTe2/Graphene Memristors

open access: yesAdvanced Functional Materials, EarlyView.
An electrically induced reversible 2H ↔ 1T′ phase transition is demonstrated in a vertical Au/Ti/MoTe2/graphene memristor with a laterally contacted graphene electrode. Resistive switching proceeds through a compositionally invariant amorphous/2H ↔ amorphous/1T′ transformation, in which a self‐formed amorphous MoTe2 interfacial region is proposed to ...
Chien‐Hua Wang   +7 more
wiley   +1 more source

Poly(vinyl alcohol)-Based Anion Exchange Membranes for Alkaline Direct Ethanol Fuel Cells

open access: yesInternational Journal of Renewable Energy Development, 2021
Crosslinked anion exchange membranes (AEMs) made from poly(vinyl alcohol) (PVA) as a backbone polymer and different approaches to functional group introduction were prepared by means of solution casting with thermal and chemical crosslinking.
Asep Muhamad Samsudin   +3 more
doaj   +1 more source

Bio‐Inspired Multifunctional Superhydrophilic Coatings With Remarkably Fast Self‐Healing Abilities

open access: yesAdvanced Functional Materials, EarlyView.
We developed bio‐inspired multifunctional hydrogel‐based coatings that exhibit extremely fast/repeatable self‐healing abilities, long‐lasting anti‐fogging performance, superhydrophilicity in air, and underwater superoleophobicity. By doping multivalent metal‐ions into the hydrogel networks, which promoted hydrogen bonding formation and enhanced the ...
Hyeonjin Kim   +5 more
wiley   +1 more source

Radiation Grafting of Adsorbent for Improving Nickel Adsorption Capacity from Aqueous Solutions: Chitosan/ Poly (Vinyl Alcohol) Radiation Grafted with Acrylic Acid [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2014
groups bonded to the polymer. The aim of this study was to investigate the effect of radiation grafting of acrylic acid on the crosslinked Chitosan/poly (vinyl alcohol) adsorbent film to improve the absorption of nickel from aqueous solutions.
Nasrin Sheikh, Shohreh Kianfar
doaj  

Bio-Inspired nacre-like nanolignocellulose-poly (vinyl alcohol)-TiO2 composite with superior mechanical and photocatalytic properties

open access: yesScientific Reports, 2017
Nacre, the gold standard for biomimicry, provides an excellent example and guideline for assembling high-performance composites. Inspired by the layered structure and extraordinary strength and toughness of natural nacre, nacre-like nanolignocellulose ...
Yipeng Chen   +7 more
doaj   +1 more source

Studying of the optical properties of poly (vinyl alcohol) films using Aluminum sulphate as additive by measuring allowed direct transition energy gap

open access: yesمجلة بغداد للعلوم, 2011
The change in the optical band gap and optical activation energy have been investigated for pure Poly (vinyl alcohol)and Poly (vinyl alcohol) doped with Aluminum sulphate to proper films from their optical absorption spectra. The absorption spectra were
Baghdad Science Journal
doaj   +1 more source

Rare‐Earth–Functionalized Carbon Dot Hydrogels as Mechanically Robust Antibacterial Wound Dressings

open access: yesAdvanced Healthcare Materials, EarlyView.
The schematic depicts a dynamically cross‐linked PVA hydrogel network in which reversible borate ester bonds and hydrogen‐bonding interactions integrate lanthanum‐doped carbon dots (La‐CDs) and dipotassium glycyrrhizinate (DPG) to form a mechanically robust, multifunctional matrix.
Shih‐Han Tsai   +4 more
wiley   +1 more source

Preparation and characterization of nanofibrillated cellulose/poly (vinyl alcohol) composite films

open access: yesMaderas: Ciencia y Tecnología, 2016
Poly (vinyl alcohol) based composite films with different loadings of cellulose nanofibrils were prepared using a solvent casting method and their tensile, optical and wettability properties were tested.
Behzad Kord   +3 more
doaj  

Synthesis and Study of the Antimicrobial Activity of Modified Polyvinyl Alcohol Films Incorporated with Silver Nanoparticles

open access: yesمجلة بغداد للعلوم, 2023
       A new class of biologically active nanocomposites and modified polymers based on poly (vinyl alcohol) (PVA) with some organic compounds [II, IV, V and VI] were synthesized using silver nanoparticles (Ag-NPs).
Basma J. Ahmed   +2 more
doaj   +1 more source

Poly(vinyl alcohol)-Iodine Complex in Poly(vinyl alcohol) Films Soaked at High Iodine Concentrations [PDF]

open access: yesPolymer Journal, 1990
Poly(vinyl alcohol)-Iodine Complex in Poly(vinyl alcohol) Films Soaked at High Iodine ...
Sakuramachi, Hiromi   +2 more
openaire   +1 more source

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