Thin film fabrication and simultaneous anodic reduction of. Electromagnetic interference emi transparent shielding. Utilization of graphene oxide electrophoretic deposition for. In this work, reduced graphene oxide rgo thin films of varying thicknesses are fabricated onto fluorinedoped tin oxide fto glass via electrophoretic deposition technique. Electrophoretic deposition of graphenebased materials. Allsolidstate reduced graphene oxide supercapacitor with. Graphene oxide go were utilized to improve the interfacial performance of carbon fiber cf and epoxy resin. The oxygen functional groups of go were significantly removed by the epd process, and the asdeposited go film by epd. A facile, rapid, and scalable electrophoretic deposition approach is developed for the fabrication of largearea chemically derived graphene films on conductive substrates based on the electrophoretic deposition of graphene oxide and reduced graphene oxide components.
The coatings were characterized using sem, ftir, contact angle and roughness measurements and by antibacterial studies against li. Abstract electrophoretic deposition epd is a facile and feasible technique to prepare functional nanocomposite coatings for application in orthopedicrelated implants. The suspension of go was characterized by measuring the zeta potential of the solution using a dispersion optical analyzer. Pdf simultaneous silicon oxide growth and electrophoretic. Enhancement of interfacial adhesion in glass fiberepoxy. The epd parameters voltage and deposition time were varied to deposit. Pdf electrophoretic deposition of graphene oxide nanosheets. We directly constructed reduced graphene oxide titanium oxide nanotube rgotnt film using a singlestep, combined electrophoretic deposition anodization cepda method. Electrophoretic deposition, graphene, graphene oxide. Electrophoretic deposition of graphene oxide nanosheets on copper pipe for corrosion protection essam hares 1,2 a. Electrophoretic deposition of reduced graphene oxide for the formation of carefully designed interfaces.
Electrophoretic deposition epd is an alternative method that may be used to obtain binderfree carbon nanotube graphene composite electrochemical capacitor electrodes. Jan 12, 2016 electrophoretic deposition epd is a facile and feasible technique to prepare functional nanocomposite coatings for application in orthopedicrelated implants. Electrophoretic deposition of graphene enhanced aluminum and bismuth trioxide nanothermite thin films. Utilization of graphene oxide electrophoretic deposition. Scanning electron microscopy images reveal the presence of go sheets on the silicon substrate, and this is also confirmed by xray photoelectron spectroscopy xps, albeit. Bacterial toxicity of graphene nanosheets in the form of graphene nanowalls deposited on stainless steel substrates was investigated for both grampositive and gramnegative models of bacteria. In the present work, electrophoretic deposition epd was used to deposit graphene oxide go onto carbon steel from a go water suspension.
Us20110227000a1 electrophoretic deposition and reduction. The coating of electrical interfaces with reduced graphene oxide rgo films and their subsequent chemical modification are essential steps in the fabrication of graphenebased sensing platforms. Electrophoretic deposition of reduced graphene oxide. This is a pdf file of an unedited manuscript that has been accepted for. Graphene is a new class of planar sp 2hybridized carbon atoms in honeycomb lattice with exceptional properties. Among the extraordinary features of graphene is its very high mechanical strength, which makes it an. Enhancement of interfacial adhesion in glass fiberepoxy composites by electrophoretic deposition of graphene oxide on glass fibers haroon mahmooda, manoj tripathib, nicola pugnoc, b, d, alessandro pegorettia, a department of industrial engineering and instm research unit, university of trento, via sommarive 9, 38123 trento, italy. Electrophoretically deposited graphene oxide and carbon. Coating microstructure and morphologies were investigated by scanning electron. The coating was observed to consist of a polymer matrix with embedded, agglomerated.
Simultaneous silicon oxide growth and electrophoretic deposition of graphene oxide pina a. The sample thicknesses increase with increasing number of deposition cycles 5, 10, 20 cycles. The coating of electrical interfaces with reduced graphene oxide rgo. Graphene oxide go coatings were deposited on copper strips via electrophoretic. In the present work, graphene oxide go was deposited on aluminum al by cathodic electrophoretic deposition epd. Initially, graphite oxide powder was added in water with a concentration level of 1 mgml and the dispersion was subjected to bathsonication for 1 h. A characteristic feature of this process is that colloidal particles suspended in a liquid medium migrate under the influence of an electric field electrophoresis and. Then, go was transformed into thermallyreduced graphene oxide rgo at an appropriate temperature. Sep 25, 2019 the electrophoretic deposition epd of graphene. Graphene sheets were fabricated by electrophoretic deposition method from water suspension of graphene oxide followed by thermal reduction. Reduced graphene oxide thin film on conductive substrates.
Electrophoretic nanocrystalline graphene film electrode for. Free electrophoretic deposition of graphene quantum. Nickel ion decoration made go positively charged and further made cathodic epd feasible. In the present work, electrophoretic deposition epd is used to deposit reduced graphene oxide rgo nanosheets onto a tio 2 nanotube array for application as photoelectrode in dyesensitized solar cells dsscs. These advantages have prompted interest to develop water based graphene oxide coating by epd. Electrophoretic deposition of graphene enhanced aluminum. On the basis of measuring the efflux of cytoplasmic materials of the bacteria, it was found that the cell membrane damage of the bacteria caused by direct contact of the bacteria with the. Electrophoretic nanocrystalline graphene film electrode. Abstract we report the deposition of films composed of overlapped and stacked platelets of graphene oxide go reduced by an electrophoretic deposition epd process. Us20110227000a1 electrophoretic deposition and reduction of.
Preparation of reduced graphene oxidenioh2 composites by. Article click chemistry on gold electrodes modified with. The successful synthesis of graphite oxide was carried by the modified hummers method. This method, based on the simultaneous anodic growth of tubular tio 2 and the electrophoreticdriven motion of rgo, allowed the formation of an effective interface between the two components, thus improving the. The asdeposited rgo nanosheets are very uniform and can be obtained with controllable thickness. Prior art keywords method graphene oxide substrate deposited combination prior art date 20100319 legal status the legal status is an assumption and is not a legal. Electrophoretic deposition epd, is a term for a broad range of industrial processes which includes electrocoating, cathodic electrodeposition, anodic electrodeposition, and electrophoretic coating, or electrophoretic painting.
Reduced graphene oxide thin film on conductive substrates by. This method, based on the simultaneous anodic growth of tubular tio 2 and the electrophoreticdriven motion of rgo, allowed the formation of an effective interface. Electrophoretic deposition of graphene oxide on mild carbon. A characteristic feature of this process is that colloidal particles suspended in a liquid medium migrate under the. Electrophoretic deposition of graphenerelated materials. Characteristics of silicon oxide thin films prepared by. Electrophoretic deposition epd is a facile and feasible technique to prepare functional nanocomposite coatings for application in orthopedicrelated implants. A simple electrophoretic deposition method was developed to prepare graphene oxide go films on the frameworks of nickel foam without any conductive agents and polymer binders. Preparation of reduced graphene oxidenioh2 composites.
An effective way to prepare graphene oxidecarbon fiber hybrid fiber was proposed by the treatment with hydrogen peroxide and concentrated nitric acid combined with electrophoretic deposition process. Utilization of graphene oxide electrophoretic deposition for construction of electrochemical sensors and biosensors. A sensitive and stable nonenzymatic sensing platform for dglucose based on a reduced graphene oxide rgo matrix modified with nioh2 nanostructures was established. In this work, a ternary graphene oxidechitosanhydroxyapatite gocsha composite coating on ti substrate was successfully fabricated by epd. Pdf electrophoretic deposition of graphene oxide on. It is based on the mixing of negatively charged graphene oxide go with nickel ions resulting in a positively charged composite making cathodic electrophoretic deposition possible.
Pdf electrophoretic deposition of graphenebased materials. Download a pdf of our prospectus or order a printed copy to be. Since gfs are nonconductive materials, two copper plates were used as electrodes in the epd process. A facile, rapid, scalable, and environmentally friendly electrophoretic deposition epd approach has been developed for the fabrication of reduced graphene oxide rgo and nioh2 syntheses based on epd of graphene oxide go and nino32 colloidal suspension.
Electrophoretic deposition of graphene oxide on mild. The oxygen functional groups of go were significantly removed by the epd process, and the asdeposited go film by epd showed improved electrical conductivity 1. Pdf electrophoretic deposition of graphene oxide on aluminum. Electrophoretic deposition of reduced graphene oxide thin. Several factors can determine the yield of the epd process, such as applied voltage, deposition time and particularly the presence of dispersion additives stabilisers in the suspension solution. The thickness of the resulting rgonioh 2 matrix deposited on au could be controlled by varying the time of electrophoretic deposition. Electrophoretic codeposition of chitosan and graphene. In this work, electrophoretic deposition epd of graphene oxide at 2. Prior to the coating process, the go solution sigmaaldrich, 4 mgml with a conductivity of 7. Materials and methods electrophoretic deposition of go. The thickness of go sheets was found in the range 12 nm as determined by atomic force microscope afm. Graphene oxide silver nanoparticles abstract a novel twolayer reinforced carbon.
Characterization, low thermal annealing, surface and anticorrosive properties samira naghdi,1. This work is ultimately aimed to deposit graphene oxide go nanosheets onto the surface of copper cu pipe by electrophoretic deposition epd technique for enhancing the corrosion resistance. Reduced graphene oxide hydrogels, deposited in nickel foam by electrophoretic deposition, for supercapacitor, james dickerson and viet hung pham abstract electrophoretic deposition of sno2 nanostructured thick films for co sensing, paula vilarinho, elizabete costa, and alexandre santos abstract. We report the deposition of films composed of overlapped and stacked platelets of graphene oxide go reduced by an electrophoretic deposition epd process. Electrophoretic deposition of calcium silicatereduced graphene oxide composites on titanium substrate calcium silicate csgraphene coatings have been used to improve the biological and mechanical fixation of metallic prosthesis. Anodic deposition on cu pipe was carried out under. The formation of nanocrystalline graphene sheets has been confirmed by scanning electron microscopy, xray diffraction and raman spectroscopy. Electrophoretic deposition of graphenebased materials usn open. Pdf electrophoretic deposition of graphene oxide nanosheets on. A simple electrophoretic deposition method was developed to prepare graphene oxide go. A special focus will be on the use of electrophoretic based approaches for the deposition of rgo and hybrid materials. Largearea, conductive and flexible reduced graphene oxide.
In this study graphene coatings were deposited on mild steel substrate using feasible and environmental friendly method. A stable suspension is the key for uniform deposition of graphene on gfs. Electrophoretic codeposition of chitosan and graphene oxide. An effective way to prepare graphene oxide carbon fiber hybrid fiber was proposed by the treatment with hydrogen peroxide and concentrated nitric acid combined with electrophoretic deposition process. Graphene oxide go coatings were developed from gowater suspension using electrophoretic deposition epd. Graphene oxide coatings deposited on steel substrate using. In the first approach, graphene oxide sheets are electrophoretically deposited from an aqueous solution after. Apr 26, 2019 this work is ultimately aimed to deposit graphene oxide go nanosheets onto the surface of copper cu pipe by electrophoretic deposition epd technique for enhancing the corrosion resistance. Preparation of graphene oxide coatings onto carbon fibers by. The effects of low thermal annealing 50200 c on hydrophobicity of algo samples were investigated by water contact angle wca measurement. The go coating was used as a barrier layer for the corrosion protection of carbon steel. The coating of electrical interfaces with reduced graphene oxide rgo films and their subsequent chemical modification are essential steps in the fabrication of graphene based sensing platforms. Read electrophoretic deposition of graphene oxide on continuous carbon fibers for reinforcement of both tensile and interfacial strength, composites science and technology on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Toxicity of graphene and graphene oxide nanowalls against.
The effects of low thermal annealing 50200 c on hydrophobicity of algo samples were investigated by water contact angle wca. Silver nanoparticlesgraphene oxide decorated carbon fiber. The electrophoretic deposition epd of graphene related materials grms is an attractive strategy for a wide range of applications. Graphene coating on copper by electrophoretic deposition. Abandoned application number us52,7 inventor rodney s.
Introduction graphene and graphene oxide go has attracted increasing interest of many scientists because of its unique properties which find application across many fields. The research progress of the epd of graphenebased composite materials and their. Oct 27, 2016 read electrophoretic deposition of graphene oxide on continuous carbon fibers for reinforcement of both tensile and interfacial strength, composites science and technology on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Preparation of graphene oxide coatings onto carbon fibers. The suspension of go was characterized by measuring the zeta potential of the solution using a dispersion optical. The electrophoretic deposition epd technique is an attractive approach for development of graphene and graphene oxide go films for a variety of applications. Simultaneous silicon oxide growth and electrophoretic deposition of graphene oxide.
Enormous number of papers regarding to graphene and graphene oxide are focused on improvement of. Electrophoretic deposition of graphene oxide on aluminum. Combined electrophoretic depositionanodization method to. Chitosan graphene oxide go composite coatings intended for antibacterial applications were obtained by cathodic electrophoretic deposition epd on stainless steel. Electrophoretic deposition of calcium silicatereduced. Electrophoretic deposition and thermal reduction as high. Pdf this work is ultimately aimed to deposit graphene oxide go nanosheets onto the surface of copper cu pipe by electrophoretic. Electrophoretic deposition of graphene oxide nanosheets on. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.
During electrophoretic deposition of graphene oxide go sheets on silicon substrates, not only deposition but also simultaneous anodic oxidation of the silicon substrate takes place, leading to a threelayered material. Electrophoretic deposition of graphene oxide reinforced. The measured capacitance improved threefold, reaching a maximum speci. Simultaneous silicon oxide growth and electrophoretic. Choub, guozhong caob, younseoung leec, wonjun leed adepartment of materials science and engineering, hanbat national university, daejeon 305719, republic of korea b department of materials science and engineering, university.
Electrophoretic deposition epd is promising techniquea for graphene oxide deposition with a number of advantages including simple experimental apparatus, economic cost, high throughput, fine control of film thicknesses, and broad selection of substrates. The electrophoretic deposition epd of graphenerelated materials grms is an attractive strategy for a wide range of applications. The sensing matrix was fabricated in onestep through an electrophoretic deposition approach. Understanding chemical properties of electrophoretically. Electrophoretic deposition epd is a promising technique for graphene oxide. Understanding chemical properties of electrophoretically deposited. Onestep electrophoretic deposition of reduced graphene. Epd provides an economical means of achieving controlled uniform deposition at high rates.