Magnetic iron oxide and iron oxide@gold nanoparticle anchored nitrogen and sulfur-functionalized reduced graphene oxide electrocatalyst for methanol oxidation

Fuel cells have been attracting more and more attention in recent decades due to high-energy demands, fossil fuel depletions and environmental pollution throughout world. In this study, we report the synthesis of metallic and bimetallic nanoparticles such as spherical iron oxide nanoparticles [(sp)Fe3O4], rod iron oxide nanoparticles [(rd)Fe3O4] and iron@gold nanoparticles (Fe3O4@AuNPs) involving L-cysteine functionalized reduced graphene oxide nanohybrids [(sp)Fe3O4/cys/rGO, (rd)Fe3O4/cys/rGO and Fe3O4@AuNPs/cys/rGO] and their application as an electrocatalyst for methanol electro-oxidation. The nanohybrids have been characterized by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The experimental results have demonstrated that reduced graphene oxide-supported bimetallic nanoparticles enhanced the electrochemical efficiency for methanol electro-oxidation with regard to diffusion efficiency, oxidation potential and forward oxidation peak current. Fe3O4@AuNPs/cys/rGO, in comparison to (sp)Fe3O4/cys/rGO and (rd)Fe3O4/cys/rGO, showed the most efficiency for methanol electro-oxidation.

[1]  M. L. Yola,et al.  A sensitive molecular imprinted electrochemical sensor based on gold nanoparticles decorated graphene oxide: Application to selective determination of tyrosine in milk , 2015 .

[2]  Vinod K. Gupta,et al.  A novel glucose biosensor platform based on Ag@AuNPs modified graphene oxide nanocomposite and SERS application. , 2013, Journal of colloid and interface science.

[3]  S. Ji,et al.  Evolution of the electrocatalytic activity of carbon-supported amorphous platinum–ruthenium–nickel–phosphorous nanoparticles for methanol oxidation , 2014 .

[4]  N. Essayem,et al.  Pt-AlOOH-SiO2/graphene hybrid nanomaterial with very high electrocatalytic performance for methanol oxidation , 2015 .

[5]  P. Shen,et al.  A cobalt phosphide on carbon decorated Pt catalyst with excellent electrocatalytic performance for direct methanol oxidation , 2015 .

[6]  P. Shen,et al.  Methanol and ethanol electrooxidation on Pt and Pd supported on carbon microspheres in alkaline media , 2007 .

[7]  Mohammad A. Khalilzadeh,et al.  A new strategy for determination of bisphenol A in the presence of Sudan I using a ZnO/CNTs/ionic liquid paste electrode in food samples. , 2014, Food chemistry.

[8]  Vinod K. Gupta,et al.  A voltammetric biosensor based on ionic liquid/NiO nanoparticle modified carbon paste electrode for the determination of nicotinamide adenine dinucleotide (NADH) , 2014 .

[9]  Mehmet Lütfi Yola,et al.  Molecularly imprinted electrochemical biosensor based on Fe@Au nanoparticles involved in 2-aminoethanethiol functionalized multi-walled carbon nanotubes for sensitive determination of cefexime in human plasma. , 2014, Biosensors & bioelectronics.

[10]  R. Barbucci,et al.  Biohydrogels with magnetic nanoparticles as crosslinker: characteristics and potential use for controlled antitumor drug-delivery. , 2012, Acta biomaterialia.

[11]  L. Uzun,et al.  A novel magnetic Fe@Au core-shell nanoparticles anchored graphene oxide recyclable nanocatalyst for the reduction of nitrophenol compounds. , 2014, Water research.

[12]  S. Karna,et al.  Potentiometric stripping analysis of methyl and ethyl parathion employing carbon nanoparticles and halloysite nanoclay modified carbon paste electrode. , 2012, Analytica chimica acta.

[13]  Yueping Fang,et al.  Electroless synthesis of two-dimensional sandwich-like Pt/Mn3O4/reduced-graphene-oxide nanocomposites with enhanced electrochemical performance for methanol oxidation , 2014 .

[14]  Chia-Fu Chou,et al.  Electrokinetic preconcentration and detection of neuropeptides at patterned graphene-modified electrodes in a nanochannel. , 2014, Analytical chemistry.

[15]  S. K. Ling,et al.  Dye Adsorption on Layered Graphite Oxide , 2011 .

[16]  M. Baghayeri,et al.  Multi-walled carbon nanotubes decorated with palladium nanoparticles as a novel platform for electrocatalytic sensing applications , 2014 .

[17]  F. Karimi,et al.  Application of CdO nanoparticle ionic liquid modified carbon paste electrode as a high sensitive biosensor for square wave voltammetric determination of NADH. , 2014, Materials science & engineering. C, Materials for biological applications.

[18]  M. L. Yola,et al.  A novel electro analytical nanosensor based on graphene oxide/silver nanoparticles for simultaneous determination of quercetin and morin , 2014 .

[19]  A. Srivastava,et al.  Adsorptive stripping voltammetric determination of imipramine, trimipramine and desipramine employing titanium dioxide nanoparticles and an Amberlite XAD-2 modified glassy carbon paste electrode. , 2013, The Analyst.

[20]  M. L. Yola,et al.  Determination of amikacin in human plasma by molecular imprinted SPR nanosensor , 2014 .

[21]  R. Pérez‐Hernández,et al.  Synthesis of magnetite (Fe3O4) nanoparticles without surfactants at room temperature , 2007 .

[22]  Yuan Fang,et al.  Microspheres assembled by KMn8O16 nanorods and their catalytic oxygen reduction activity in direct methanol fuel cells , 2014 .

[23]  Junjie Huang,et al.  One-step synthesis of nanocrystalline TiO2-coated carbon nanotube support for Pt electrocatalyst in direct methanol fuel cell , 2014 .

[24]  Hassan Karimi-Maleh,et al.  A Voltammetric Sensor for Simultaneous Determination of Vitamin C and Vitamin B6 in Food Samples Using ZrO2 Nanoparticle/Ionic Liquids Carbon Paste Electrode , 2015, Food Analytical Methods.

[25]  A. Solak,et al.  Electrochemical studies on graphene oxide-supported metallic and bimetallic nanoparticles for fuel cell applications , 2014 .

[26]  Pradeep Mathur,et al.  Biomimetic sensor for certain catecholamines employing copper(II) complex and silver nanoparticle modified glassy carbon paste electrode. , 2013, Biosensors & bioelectronics.

[27]  Ping Yang,et al.  Two dimensional MoS2/graphene composites as promising supports for Pt electrocatalysts towards methanol oxidation , 2015 .

[28]  V. Soldi,et al.  Properties of filmogenic solutions of gliadin crosslinked with 1-(3-dimethyl aminopropyl)-3-ethylcarbodiimidehydrochloride/N-hydroxysuccinimide and cysteine , 2009 .

[29]  U. V. Varadaraju,et al.  Nitrogen containing carbon nanotubes as supports for Pt – Alternate anodes for fuel cell applications , 2005 .

[30]  Vinod K. Gupta,et al.  Electrocatalytic determination of captopril in real samples using NiO nanoparticle modified (9,10-dihydro-9,10-ethanoanthracene-11,12-dicarboximido)-4-ethylbenzene-1,2-diol carbon paste electrode , 2014 .

[31]  Xian-Jin Yang,et al.  Evolution of palladium/copper oxide–titanium dioxide nanostructures by dealloying and their catalytic performance for methanol electro-oxidation , 2015 .

[32]  M. L. Yola,et al.  Catalytic activity of Fe@Ag nanoparticle involved calcium alginate beads for the reduction of nitrophenols , 2014 .

[33]  M. S. Qureshi,et al.  A novel impedimetric biosensor based on graphene oxide/gold nanoplatform for detection of DNA arrays , 2013 .

[34]  Myeongjin Kim,et al.  Fabrication of low-methanol-permeability sulfonated poly(phenylene oxide) membranes with hollow glass microspheres for direct methanol fuel cells , 2015 .

[35]  Shaobin Wang,et al.  Adsorptive and photocatalytic removal of reactive dyes by silver nanoparticle-colemanite ore waste , 2014 .

[36]  Guangwei He,et al.  Novel sulfonated poly (ether ether ketone)/phosphonic acid-functionalized titania nanohybrid membrane by an in situ method for direct methanol fuel cells , 2015 .

[37]  Mehmet Lütfi Yola,et al.  A novel efficient photocatalyst based on TiO2 nanoparticles involved boron enrichment waste for photocatalytic degradation of atrazine , 2014 .

[38]  Zelin Li,et al.  Direct electrodeposition of PtPd alloy foams comprised of nanodendrites with high electrocatalytic activity for the oxidation of methanol and ethanol , 2012 .

[39]  A. Mohamed,et al.  Noble metal modified reduced graphene oxide/TiO2 ternary nanostructures for efficient visible-light-driven photoreduction of carbon dioxide into methane , 2015 .