scholarly journals Synthesis of Aqueous Dispersion of Graphenes via Reduction of Graphite Oxide in the Solution of Conductive Polymer

10.5772/24834 ◽  
2011 ◽  
Author(s):  
Sungkoo Lee ◽  
Kyeong K. ◽  
Eunhee Lim
Keyword(s):  
Graphite Oxide ◽  
Conductive Polymer ◽  
Aqueous Dispersion

Facile synthesis of silver-decorated reduced graphene oxide as a hybrid filler material for electrically conductive polymer composites

RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15070-15076 ◽  
Author(s):  
Linxiang He ◽  
Sie Chin Tjong
Keyword(s):  
Graphene Oxide ◽  
Polymer Composites ◽  
Reduced Graphene Oxide ◽  
Graphite Oxide ◽  
Conductive Polymer ◽  
Facile Synthesis ◽  
Hybrid Filler ◽  
Electrically Conductive ◽  
Conductive Polymer Composites ◽  
Reduced Graphene

Nano silver-decorated reduced graphene oxide (Ag–RGO) sheets were synthesized by simply dissolving graphite oxide and silver nitrate inN,N-dimethylformamide and keeping the suspension at 90 °C for 12 h.

Interface polymerization synthesis of conductive polymer/graphite oxide@sulfur composites for high-rate lithium-sulfur batteries

2015 ◽  
Vol 155 ◽  
pp. 54-60 ◽  
Author(s):  
Xiwen Wang ◽  
Zhian Zhang ◽  
Xiaolin Yan ◽  
Yaohui Qu ◽  
Yanqing Lai ◽  
...  
Keyword(s):  
Graphite Oxide ◽  
Conductive Polymer ◽  
High Rate ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Enzymatic Synthesis of Polyaniline/Graphite Oxide Nanocomposites

2012 ◽  
Vol 1448 ◽  
Author(s):  
C. Guerrero-Bermea ◽  
S. Sepulveda-Guzman ◽  
R. Cruz-Silva
Keyword(s):  
Graphite Oxide ◽  
Enzymatic Synthesis ◽  
Colloidal Stability ◽  
Aqueous Dispersion ◽  
Enzymatic Polymerization ◽  
Polymerization Reaction ◽  
As Doping ◽  
Fourier Transformed Infrared Spectroscopy ◽  
Vis Spectroscopy ◽  
Horseradish Peroxide

ABSTRACTIn this work, we prepared graphite oxide (GO)/polyaniline nanocomposites by enzymatic polymerization of aniline in an aqueous dispersion of graphite oxide. Two GO dispersions with sheets having an average lateral size of 12.50 μm and 247 nm were used. The enzymatic polymerization was carried out in aqueous acidic medium using toluenesulfonic acid (TSA) as doping agent, horseradish peroxide (HRP) as catalyst, and hydrogen peroxide as oxidizer. The polymerization reaction was studied using 1.0, 2.5 and 5 wt % of GO and nGO dispersions. No changes were observed in the catalytic activity of the peroxidase during the enzymatic synthesis due to the additionof GO sheets. Scanning electron microscopy images show that PANI colloids were attached on GO sheets. The PANI-GO colloids were characterized by ultraviolet–visible spectroscopy and Fourier transformed infrared spectroscopy, whereas their colloidal stability was evaluated at different pHs. The UV-vis spectroscopy study revealed that GO affects the electronic conjugation of PANI modifying its absorption spectrum.

Antimony-doped tin oxide nanoparticles for conductive polymer nanocomposites

2008 ◽  
Vol 23 (3) ◽  
pp. 869-880 ◽  
Author(s):  
W.E. Kleinjan ◽  
J.C.M. Brokken-Zijp ◽  
R. van de Belt ◽  
Z. Chen ◽  
G. de With
Keyword(s):  
Polymer Nanocomposites ◽  
Tin Oxide ◽  
Particle Surface ◽  
Conductive Polymer ◽  
Aqueous Dispersion ◽  
Small Decrease ◽  
Conductivity Measurements ◽  
Sb Doping ◽  
Tin Oxide Nanoparticles ◽  
Fractal Particle

Nanoparticles of antimony-doped tin oxide (ATO) were characterized for 0–33.3% Sb doping, both in aqueous dispersion and as dried powder. Antimony is incorporated in the cassiterite SnO2 structure of the ATO nanoparticles (d ≈ 7 nm) up to the highest doping levels, mainly as SbV, but with increasing Sb doping the SbIII content increases. We found adsorption of NH3 at the particle surface and evidence for the incorporation of nitrogen in the crystal lattice of the particles. The total nitrogen content increases with increasing Sb doping of the particles. Compact powder conductivity measurements show an increase in conductivity of ATO powder up to 13% Sb and a small decrease for higher Sb contents. Furthermore, we show that these particles can be used to prepare highly transparent conductive cross-linked ATO/acrylate nanocomposites with a continuous fractal particle network through the polymer matrix and a very low percolation threshold (ϕc ≈ 0.3 vol%).

Design and fabrication of conductive polymer hydrogels and their applications in flexible supercapacitors

2020 ◽  
Vol 8 (44) ◽  
pp. 23059-23095 ◽  
Author(s):  
Xinting Han ◽  
Guangchun Xiao ◽  
Yuchen Wang ◽  
Xiaona Chen ◽  
Gaigai Duan ◽  
...  
Keyword(s):  
Conductive Polymer ◽  
Polymer Hydrogels ◽  
Conductive Materials ◽  
Flexible Supercapacitors

Conductive polymer hydrogels, which combine the advantages of both polymers and conductive materials, have huge potential in flexible supercapacitors.

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