reduced graphene oxide-nh2 modified low pressure

The Effect of Different Reduction Methods on

Large quantity of graphene oxide (GO) was prepared by Modified Hummer's method, in which graphite was treated with a mixture of sulphuric acid, potassium permanganate and hydrogen peroxide. A chemically reduced graphene oxide (r-GO) was prepared using sodium borohydride (NaBH 4 ), followed by thermal treatment and thermal treatment of chemically reduce using NaBH 4 .

Synthesis and functionalization of graphene and

2016/2/4The group had used graphite oxide, graphene oxide, thermally reduced graphene oxide, and electrochemically reduced graphene oxide for fabrication of immunosensor (). It was found that thermally reduced graphene oxide has provided the best performance with the linear detection range from 0.3 mg ml -1 to 7 mg ml -1 .

Thermal reduction of graphene oxide: How temperature

2018/12/1Reduction temperature plays the most crucial role as it controls the quality of reduced graphene oxide in terms of weight percentage of carbon and lattice defect. The study leads to achieving highest content with a minimum defect in the graphene lattice at the optimum temperature, which is found to be 350 C at standard atmospheric pressure.

Reduced graphene oxide supported Ti

A new electrochemical sensor constructed using reduced graphene oxide/Ti-based metal–organic framework (RGO/Ti-MOF)-modified glassy carbon electrode (GCE) has been introduced for electro-catalytic oxidation and determination of Propranolol, a most used β-adrenergic receptor. Synthesized RGO/Ti-MOF composite as a synergistic catalyst has very active sites and great ability for electron

Graphene Oxide Modified Electrodes for Dopamine

"A facile electrochemical sensor based on reduced graphene oxide and Au nanoplates modified glassy carbon electrode for simultaneous detection of ascorbic acid, dopamine and uric acid," Sensors and Actuators B: Chemical, vol. 204, pp. 302–309, 2014.

Reduced graphene oxide‐based materials for

GO should be reduced, making reduced graphene oxide (rGO), to bring back the π network, which is the representative characteristic of graphene. 34-36 Reduction techniques can be employed in various way as chemical, thermal, and electrochemical process.

Reduced graphene oxide‐based materials for

GO should be reduced, making reduced graphene oxide (rGO), to bring back the π network, which is the representative characteristic of graphene. 34-36 Reduction techniques can be employed in various way as chemical, thermal, and electrochemical process.

Graphene Oxide: Structure, Properties, Synthesis, and

2020/12/30Graphene materials also include graphene oxide (GO)—chemically modified graphene obtained by oxidation and exfoliation of graphite—and reduced graphene oxide (RGO), which is a form of graphene oxide after chemical, thermal, microwave, photochemical

Synthesis and functionalization of graphene and

2016/2/4The group had used graphite oxide, graphene oxide, thermally reduced graphene oxide, and electrochemically reduced graphene oxide for fabrication of immunosensor (). It was found that thermally reduced graphene oxide has provided the best performance with the linear detection range from 0.3 mg ml -1 to 7 mg ml -1 .

Functional chemically modified graphene film:

2017/10/4Graphene oxide (GO) sheets were synthesized via a modified Hummers method. GO dispersion with a high concentration of 6 mg ml −1 was chosen to form GO hydrogel, followed by chemical reduction to derive a free–standing reduced GO (rGO) film.

Functional chemically modified graphene film:

2017/10/4Graphene oxide (GO) sheets were synthesized via a modified Hummers method. GO dispersion with a high concentration of 6 mg ml −1 was chosen to form GO hydrogel, followed by chemical reduction to derive a free–standing reduced GO (rGO) film.

Bio‐inspired method to fabricate poly‐dopamine/reduced

In this study, GO was reduced to reduced graphene oxide through a bio‐inspired method, which was functionalized modified by poly‐dopamine (PDA). Then a series of PDA/reduced graphene oxide sheet films were prepared by vacuum filtration on the surface of cellulose acetate membrane (under the pressure of −0.1 MPa).

Functional chemically modified graphene film:

2017/10/4Graphene oxide (GO) sheets were synthesized via a modified Hummers method. GO dispersion with a high concentration of 6 mg ml −1 was chosen to form GO hydrogel, followed by chemical reduction to derive a free–standing reduced GO (rGO) film.

Reduced graphene oxide for room

2009/10/7We present the sensing properties of reduced GO devices for detecting low-concentration NO 2 and NH 3 gases under a practical environment, i.e., atmospheric pressure and room temperature. In particular, the effect of various thermal treatments on the reduction of GO and the subsequent sensing performance is studied.

Fabrication and characterization of reduced graphene

A low-cost and fast reduction method for the fabrication of reduced graphene oxide (r-GO) by using a dielectric barrier discharge plasma jet under atmospheric pressure has been presented. Highly reduced r-GO with the carbon atomic ratio up to 87.43% is obtained

A sensitive electrochemiluminescence immunosensor for the detection of PSA based on CdWS nanocrystals and Ag+UIO

Reduced graphene oxide (rGO) and Au NPs were modified on the surface of GCE to set up a stable sensitive sensing area, on which PSA capture antibody (Ab 1) was immobilized to capture PSA via antigen-antibody immunoreaction.

Highly sensitive, scalable reduced graphene oxide with

2019/10/17Graphene oxide was synthesized using a modified Hummer's method and reduced using a chemical route. Field emission-scanning electron microscope, x-ray diffraction and Raman spectroscopy were used to characterize the as-synthesized nano-composite.

Engineering work function of graphene oxide from p to

In this work, we demonstrate doping graphene oxide (GO) films using a low power atmospheric pressure plasma jet (APPJ) with subsequent tuning of the work function. The surface potential of the plasma functionalized GO films could be tuned by 120 10 mV by

Graphene Oxide Quantum Dots Incorporated into a Thin

Graphene oxide quantum dots (GOQDs), novel carbon-based nanomaterials, have attracted tremendous research interest due to their unique properties associated with both graphene and quantum dots. In the present study, thin film nanocomposite (TFN) membranes comprising GOQDs dispersed within a tannic acid (TA) film were fabricated by an interfacial polymerization reaction for low-pressure

Reduced graphene oxide

2017/10/15Reduced graphene oxide-NH 2 (R-GO-NH 2), a kind of amino graphene oxide, was embedded into the polyamide (PA) layer of nanofiltration (NF) composite hollow fiber membranes via interfacial polymerization to enhance the permeate flux and antifouling properties of NF membranes under low pressure conditions.

Synthesis and functionalization of graphene and

2016/2/4The group had used graphite oxide, graphene oxide, thermally reduced graphene oxide, and electrochemically reduced graphene oxide for fabrication of immunosensor (). It was found that thermally reduced graphene oxide has provided the best performance with the linear detection range from 0.3 mg ml -1 to 7 mg ml -1 .

Reduced graphene oxide

2017/10/1Abstract Reduced graphene oxide-NH 2 (R-GO-NH 2), a kind of amino graphene oxide, was embedded into the polyamide (PA) layer of nanofiltration (NF) composite hollow fiber membranes via interfacial polymerization to enhance the permeate flux and antifouling properties of NF membranes under low pressure conditions.

Coatings

Graphene and its functionalised derivatives are transforming the development of biosensors that are capable of detecting nucleic acid hybridization. Using a Molecular Dynamics (MD) approach, we explored single-stranded or double-stranded deoxyribose nucleic acid (ssDNA or dsDNA) adsorption on two graphenic species: graphene oxide (GO) and reduced graphene oxide functionalized with aminated

Reduced Graphene Oxide (rGO)

The assembly of reduced graphene oxide (rGO) and fullerene (C60) into hybrid (rGO/C60) wires was successfully performed by employing the liquid–liquid interfacial precipitation method. The rGO sheets spontaneously wrapped C60 wires through the π–π interaction between rGO and C60. Structural characterization of the rGO/C60 wires was carried out by using UV/visible spectroscopy, scanning

Inkjet printing ultra

2017/3/10These inks can be dispensed by inkjet printing to form continuous films that can be reduced by a subsequent thermal or chemical process to form conductive reduced graphene oxide (RGO) []. It is generally believed that particles delivered by inkjet printing must be substantially smaller than the nozzle diameter of the printer to avoid the risk of blocking by particle agglomerates [ 3, 8, 9 ].

Graphite oxide

Graphite oxide, formerly called graphitic oxide or graphitic acid, is a compound of carbon, oxygen, and hydrogen in variable ratios, obtained by treating graphite with strong oxidizers and acids for resolving of extra metals.The maximally oxidized bulk product is a yellow solid with C:O ratio between 2.1 and 2.9, that retains the layer structure of graphite but with a much larger and irregular

Voltammetric Determination of Rhodamine B Using a

A novel modified electrode for RhB quantifying was developed based on the composite of ZIF-67 and reduced graphene oxide. Owing to synergetic effects from rGO with good electroconductivity properties and ZIF-67 with excellent textural properties, the use of ZIF-67/rGO modified electrode in DPV technique provides the broad linear response range and low LOD of RhB detection.

Solar Applications of Graphene

In these cells, low pressure CVD-grown graphene is used as the graphene source. These cells consist of anode composed of graphene, MoO3, C60 and copper phthalocyanine (CuPc). This is a similar composition to many PEDOT:PSS electrodes and allows for a direct comparison in performance- one of the many reasons why the composition was chosen.

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