GRAPHENE–NIL BLUENANOCOMPOSITE FOR NONENZYMATIC DETECTION OF HYDROGEN PEROXIDE

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KARIMI SHERVEDANI REZA; ANSARIFARD ELHAM

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Seminar Paper

Paper Information

Seminar: IRANIAN SEMINAR OF ANALYTICAL CHEMISTRY
Year:2014 | Issue:20

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Title

GRAPHENE–NIL BLUENANOCOMPOSITE FOR NONENZYMATIC DETECTION OF HYDROGEN PEROXIDE

Author(s)

KARIMI SHERVEDANI REZA | ANSARIFARD ELHAM | Issue Writer Certificate

Keywords

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Abstract

SINCE RELIABLE AND FAST DETERMINATION OF H2O2 IS IMPORTANT IN MANY AREAS SUCH AS MEDICINE, FOOD CONTROL, ENVIRONMENTAL PROTECTION, AND A KEY FACTOR IN THE DEVELOPMENT OF EFFICIENT BIOSENSORS, THE STUDY OF ELECTROCHEMICAL H2O2 SENSOR HAS ATTRACTED EXTENSIVE ATTENTION [1].HOWEVER, THERE ARE SEVERAL DISADVANTAGES OF THE ENZYME-MODIFIED ELECTRODES, SUCH AS INSTABILITY, HIGH COST OF ENZYMES AND COMPLICATED IMMOBILIZATION PROCEDURE. THE ACTIVITY OF ENZYMES CAN BE EASILY AFFECTED BY TEMPERATURE, PH VALUE, AND TOXIC CHEMICALS. IN ORDER TO SOLVE THESE PROBLEMS, CONSIDERABLE ATTENTION HAS BEEN PAID TO DEVELOP NONENZYMATIC ELECTRODES, FOR INSTANCE, NOBLE METALS, METAL ALLOYS, AND METAL NANOPARTICLES [2].RECENTLY, GRAPHENENANOSHEETS (GNS) HAVE AROUSED EXTENSIVE INTERESTS IN ELECTROCHEMISTRY FILED DUE TO ITS HIGH SURFACE AREA, SUPER CONDUCTIVITY AND WIDE POTENTIAL WINDOW [3].IN PRESENT WORK, THE GRAPHENE/NILE BLUE NANOCOMPOSITEELECTRODE WAS PREPARED BY SPRAYING 10MLGRAPHENE OXIDE/NILE BLUE (GO/NB) HOMOGENEOUS SOLUTION ONTO GC (0.03 CM2) DISK SURFACE AND DRIED. THEN, THE OBTAINED GO/NB-GC ELECTRODE WAS SCANNED 14 CYCLES IN KNO3 N2-SATURATED SOLUTION FROM 0.0 TO-1.3 V AT 20 MV S-1 AND THE RESULTING ELECTRODE WAS DENOTED AS ERGO/ NB-GC. FOR COMPARISON, THE ER-GO/GC ELECTRODE WAS ALSO SYNTHESIZED BY THE SAME WAY. THE CATALYTIC PERFORMANCE OF THIS SENSOR FOR H2O2 REDUCTIONIS INVESTIGATED USING A CYCLIC VOLTAMMETRY (CV) IN PBS (PH=7) IN THE ABSENCE OR PRESENCE OF H2O2.THESE RESULTS INDICATED THAT THE MODIFICATION OF NB ON THE SURFACE OF GO SHEETS SIGNIFICANTLY IMPROVED THE ELECTROCATALYTICACTIVITY TOWARDS THE REDUCTION OF H2O2. THEREFORE, THE CATALYTIC NATURE OF NB COMBINED WITH THE HIGH SURFACE AREA OF GNSTOWARDS H2O2MAKES HOLD THE PROMISE FOR THE DEVELOPMENT OF NONENZYMATIC SENSOR AT LOW COST.

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APA: Copy

KARIMI SHERVEDANI, REZA, & ANSARIFARD, ELHAM. (2014). GRAPHENE–NIL BLUENANOCOMPOSITE FOR NONENZYMATIC DETECTION OF HYDROGEN PEROXIDE. IRANIAN SEMINAR OF ANALYTICAL CHEMISTRY. SID. https://sid.ir/paper/913610/en

Vancouver: Copy

KARIMI SHERVEDANI REZA, ANSARIFARD ELHAM. GRAPHENE–NIL BLUENANOCOMPOSITE FOR NONENZYMATIC DETECTION OF HYDROGEN PEROXIDE. 2014. Available from: https://sid.ir/paper/913610/en

IEEE: Copy

REZA KARIMI SHERVEDANI, and ELHAM ANSARIFARD, “GRAPHENE–NIL BLUENANOCOMPOSITE FOR NONENZYMATIC DETECTION OF HYDROGEN PEROXIDE,” presented at the IRANIAN SEMINAR OF ANALYTICAL CHEMISTRY. 2014, [Online]. Available: https://sid.ir/paper/913610/en

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