Synthesis and characterization of bisulfonated poly(vinyl alcohol)/graphene oxide composite membranes with improved proton exchange capabilities

2020 ◽  
Vol 91 ◽  
pp. 106752
Author(s):  
S.C. Sánchez-Ballester ◽  
V. Soria ◽  
G. Rydzek ◽  
K. Ariga ◽  
A. Ribes-Greus
Keyword(s):  
Graphene Oxide ◽  
Vinyl Alcohol ◽  
Composite Membranes ◽  
Proton Exchange ◽  
Synthesis And Characterization ◽  
Poly Vinyl Alcohol ◽  
Oxide Composite

Synthesis and Characterization of Chitosan-Poly Vinyl Alcohol-Graphene Oxide Nanocomposites

2018 ◽  
Vol 7 (1) ◽  
pp. 1-12
Author(s):  
Fariba Saeedi ◽  
Arash Montazeri ◽  
Yaser Bahari ◽  
Malihe Pishvaee ◽  
Mohammad Ranjbar
Keyword(s):  
Graphene Oxide ◽  
Vinyl Alcohol ◽  
Weight Percent ◽  
Viscosity Measurement ◽  
Synthesis And Characterization ◽  
Poly Vinyl Alcohol ◽  
Rheological Analysis ◽  
X Ray ◽  
Aqueous Mixture

In this article, nanocomposites based on Chitosan (CS)/ poly vinyl alcohol (PVA) and graphene oxide (GO) nanoparticles were prepared by casting the stable aqueous mixture of the components in a mold. The prepared nanocomposites were characterized using Fourier-transform infrared spectroscopy (FTIR), X-ray diffractions (XRD) and viscosity measurement. Scanning Electron Microscopy (SEM) results indicated that the GO was uniformly dispersed in the polymer matrix. The water uptake ability of nanocomposites increased with an increasing the PVA content. While, the addition of GO to CS/PVA lead to a decrease in the degree of water absorption. According to the rheological analysis the viscosity of the samples decreased with increasing the GO weight percent in CS/PVA mixture.

Synthesis and characterization of reduced graphene oxide by cobalt oxide composite electrode

2020 ◽  
Author(s):  
S. Veeresh ◽  
H. Ganesh ◽  
Y. S. Nagaraj ◽  
M. Vandana ◽  
S. P. Ashokkumar ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Cobalt Oxide ◽  
Composite Electrode ◽  
Synthesis And Characterization ◽  
Oxide Composite ◽  
Reduced Graphene
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