Conducting polymer—solid electrolyte fibrillar composite material for adaptive networks

Soft Matter ◽  
2006 ◽  
Vol 2 (10) ◽  
pp. 870-874 ◽  
Author(s):  
Victor Erokhin ◽  
Tatiana Berzina ◽  
Paolo Camorani ◽  
Marco P. Fontana
Keyword(s):  
Composite Material ◽  
Solid Electrolyte ◽  
Conducting Polymer ◽  
Adaptive Networks

scholarly journals ELECTROCHEMICAL BEHAVIOR OF A COMPOSITE MATERIAL OF SOLID BIOPOLYMER ELECTROLYTE FROM CASSAVA STARCH / GRAPHENE OXIDE PREPARED AT DIFFERENT pH

2021 ◽  
Vol 18 (39) ◽  
pp. 43-55
Author(s):  
Alvaro ARRIETA ◽  
Jorge MENDOZA ◽  
Manuel PALENCIA
Keyword(s):  
Composite Material ◽  
Graphene Oxide ◽  
Composite Materials ◽  
Solid Electrolyte ◽  
Electrochemical Behavior ◽  
Lithium Perchlorate ◽  
Cassava Starch ◽  
Synthesis Process ◽  
Attractive Alternative ◽  
Oxide Addition

Background: Composite materials make it possible to modulate the properties of the source materials and expand their technological potential. In this sense, composite materials made from solid biopolymeric electrolytes and graphene oxide can be an attractive alternative for applications in organic electronics due to their electrochemical properties. Aim: The present work aims to evaluate the electrochemical behavior of a composite material made of solid biopolymeric electrolyte of cassava starch and graphene oxide at different concentrations to determine the effect of this concentration and the pH used in the production process. Methods: The composite material was made from the use of cassava starch plasticized with glycerol, glutaraldehyde, polyethylene glycol and with lithium perchlorate as electrolytes. During the synthesis process, graphene oxide was added in different concentrations (0, 0.25, 0.50, 1.00, 1.25, 1.50, and 1.75 %w/w) to evaluate the effect of the concentration of this component. The synthesis was carried out by thermochemical method with constant heating in an oven at 75 ° C for 48 hours. Films were prepared using synthesis solutions at different pH (5.0 and 9.0). The pH was regulated by adding HCl or NaOH to the synthesis solution as appropriate. Results and Discussion: The results showed that the cassava starch biopolymeric solid electrolyte films without plasticizers were stiff and brittle, so they broke easily. The films with plasticizers and the films of the composite material were stable to the manual traction, allowing their easy manipulation without breaking. The films presented a similar electrochemical behavior in terms of oxide reduction processes; however, the films with graphene oxide presented signals with higher peak currents. Films made at pH 9.0 showed 50 % more intensity in peak currents. The addition of graphene oxide affected the current parameters and peak potentials, being more marked in the films prepared at pH 9.0; at this pH the films with concentrations of graphene oxide lower than 1.00 %w/w presented variable Ep and Ip, while at concentrations of graphene oxide greater than 1%w/w, the behavior did not show significant variations. Conclusions: The addition of graphene oxide modulates or modifies the electrochemical behavior of cassava starch biopolymeric solid electrolyte films, and the processing pH can vary the effect of the graphene oxide addition.

All solid supercapacitors based on an anion conducting polymer electrolyte

RSC Advances ◽  
2016 ◽  
Vol 6 (24) ◽  
pp. 19826-19832 ◽  
Author(s):  
Chenxi Xu ◽  
Jian Yan ◽  
Qingqing Qin ◽  
Yuming Deng ◽  
Jigui Cheng ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Polymer Electrolyte ◽  
Conducting Polymer ◽  
Rate Capability ◽  
Cycling Stability ◽  
Good Rate Capability

Alkaline all solid supercapacitors based on a PBI–KOH solid electrolyte exhibit good rate capability and promising cycling stability.

Electrical percolation in composites of conducting polymers and dielectrics

2015 ◽  
Vol 35 (8) ◽  
pp. 731-741 ◽  
Author(s):  
Andrzej Katunin ◽  
Katarzyna Krukiewicz
Keyword(s):  
Electrical Conductivity ◽  
Composite Material ◽  
Numerical Model ◽  
Conducting Polymers ◽  
Conducting Polymer ◽  
Manufacturing Cost ◽  
High Electrical Conductivity ◽  
Electrical Percolation ◽  
Percolation Thresholds ◽  
High Conductance

Abstract This article deals with the electrical conductivity of a composite of two polymers, one of which is a conducting polymer, whereas the second is a dielectric. The problem was formulated within the framework of electrical percolation, i.e., the percolation thresholds, which allow for a high electrical conductivity, is under investigation. For this purpose, a numerical model was developed, and its parameters were analyzed and discussed. Based on the determined thresholds, it was possible to evaluate the weight ratios of the conducting-dielectric polymers in a composite. The proposed approach allows for reducing the manufacturing cost of composite material with respect to conducting polymers with simultaneous retaining of high conductance properties of conducting polymers, as well as durability and flexibility of dielectrics.

Artificial Single-Ion Conducting Polymer Solid Electrolyte Interphase Layer toward Highly Stable Lithium Anode

2021 ◽  
Vol 4 (1) ◽  
pp. 862-869
Author(s):  
Jianwei Zhang ◽  
Yunyun Zhong ◽  
Shuanjin Wang ◽  
Dongmei Han ◽  
Min Xiao ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Conducting Polymer ◽  
Solid Electrolyte Interphase ◽  
Interphase Layer ◽  
Lithium Anode ◽  
Ion Conducting ◽  
Ion Conducting Polymer

Conductive Nano-brush Synthesized by Physical Grafting of Conducting Polymers on Carbon Nanotube

2011 ◽  
Vol 1304 ◽  
Author(s):  
Kaushalkumar Purohit ◽  
Maureen Mirville ◽  
Sze C. Yang ◽  
Arun Shukla ◽  
Vijaya B. Chalivendra
Keyword(s):  
Composite Material ◽  
Conducting Polymers ◽  
Conducting Polymer ◽  
Physical Adsorption ◽  
Water Soluble ◽  
Poly Vinyl Alcohol ◽  
Electrical Networks ◽  
Electrically Conductive ◽  
Carbon Nano Tube ◽  
Electrically Conductive Composite

ABSTRACTWe report a novel method for synthesizing electrically conductive nano-brush (CNB) by physical grafting of organic conducting polymers on carbon nano tubes (CNT). The objective for this synthesis is to produce nano tubes having a CNT stem coated with flexible electronic conducting polymers. The nano-brush is to be blended into common polymers (e.g. epoxy, polyurethane, and poly(vinyl alcohol)) to form electrically conductive composite material. The flexible organic conducting polymer in CNB is a potentially sensitive electronic probe for mechanically induced nano-deformation of the composite because it is molecularly entangled with the host polymers. The electrical networks of CNB embedded in polymeric composites are potentially useful as in situ sensors for monitoring material deformation with an unprecedented level of sensitivity. The composite material is “smart” in the sense that it self-reports the structural “health” before load induced material failure.Our method for grafting conducting polymer does not require chemical reactions with the surface atoms of the carbon nano tube. We used physical adsorption to graft electronic conducting polymer to CNT. We first synthesized a water-soluble electronic conducting polymer which is a molecular complex between poly(acrylic acid) and polyaniline. The CNT solid were dispersed and un-bundled by sonnication in the conducting polymer solution. Due to the high affinity between CNT and the conducting polymer, the surface of CNT can be fully covered with the conducting polymer. The experimental data is consistent with a structure of nano brush with high density of conducting polymers grafted on the CNT surface.

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