Chemical and electrochemical study of fabrics coated with reduced graphene oxide

Abstract

Please cite this article as: J. Molina, Chemical and electrochemical study of fabrics coated with reduced graphene oxide, Applied Surface Science (2013), http://dx.doi.org/10. 1016/j.apsusc.2013.04.020 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. and showed a decrease of 5 orders of magnitude in the resistance (Ω) when GO was reduced to RGO. The phase angle also changed from 90º for PES-GO (capacitative behavior) to 0º for RGO coated fabrics (resistive behavior). In general an increase in the number of RGO layers produced an increase of the conductivity of the fabrics. EIS measurements in metal/sample/electrolyte configuration showed better electrocatalytic properties and faster diffusion rate for RGO specimens. Scanning electrochemical microscopy was employed to test the electroactivity of the different fabrics obtained.The sample coated with GO was not conductive since negative feedback was obtained.When GO was reduced to RGO the sample behaved like a conducting material since positive feedback was obtained. Approach curves indicated that the redox mediator had influence on the electrochemical response. The Fe(CN) 6 3-/4-redox mediator produced a higher electrochemical response than Ru(NH 3 ) 6 3+/2+ one.

Polymer-grafted modification of cotton fabrics by SI-ARGET ATRP

“…This inexpensive, biodegradable, and renewable resource has been widely studied during the past decades. Efforts to improve the wrinkle recovery properties and handle of cotton fabrics have never stopped [1][2][3], and many attempts have been made to enhance functionalities of cotton fabrics such as antimicrobial ability [4][5][6], superhydrophobicity or/and superoleophilicity [7,8], self-cleaning property [9,10], UV radiation protection ability [11], flame retardancy [12,13], electrical conductivity or capacitive performance [14,15]. Textile products with multiple functionalities or stimuli-responsive (smart) property have generated great interest in recent years [16][17][18].…”

Graphene-based fabrics and their applications: a review

“…In their electrochemical characterization using scanning electrochemical microscopy, its amphoteric behavior was observed. The RGO coatings could act either as a reductant or as an oxidant [44]. In cyclic voltammetry characterization, only low scan rates allowed the observation of RGO redox processes due to the resistive nature of the coatings, composed of lots of RGO sheets that allowed the electrical flow through the fabric.…”

“…7 shows the evolution of the temperature of RGO-PU/PET fabrics depending on the applied potential. Molina et al published different works [43][44][45] in which PES fabrics were coated with RGO and they performed a complete electrochemical characterization of these materials with not traditionally employed techniques for the characterization of these materials such as: cyclic voltammetry, electrochemical impedance spectroscopy or scanning electrochemical microscopy. The RGO coatings demonstrated to be electroactive and were homogeneously distributed on the surface of the fabrics.…”

Application of functionalized graphene oxide in flame‐retardant polypropylene

“…The most promising strategies for the efficient preparation of large amounts of graphene sheets mainly rely on the chemical conversion of graphite to graphene oxide (GO) [5][6][7][8][9][10]. Very recently, many groups reported that the GO sheets could act as an intumescent flame-retardant additive in polymer composites [11][12][13][14][15].…”