One-pot synthesis of highly dispersed PtAu nanoparticles–CTAB–graphene nanocomposites for nonenzyme hydrogen peroxide sensor

Li, Panpan; Li, Jiawei; Liu, Xiuhui; Li, Ming; Lu, Xiaoquan

doi:10.1016/j.jelechem.2015.05.027

Cited by 18 publications

(7 citation statements)

References 47 publications

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“…Unlike monometallic nanoparticles, many of the bimetallic nanoparticles have excellent electrochemical properties that make them the center of interest and are referred for electrochemical determination of H 2 O 2 by the scientists. Various studies reported bimetallic nanoparticles for electrochemical detection of H 2 O 2 such as Fe@Pt core-shell [175] , Au-Pd bimetallic nanoparticles [176] , Ag-Au/Cu2O nanocubes [177] , Pt-Ag [178] and Pt-Au [179] . These studies show remarkable electrochemical response of H 2 O 2 towards bimetallic nanocatalysts as compared to monometallic.…”

Section: Electroreduction Of Oxygenmentioning

confidence: 99%

Recent progress on electrochemical production of hydrogen peroxide

Sehrish

Manzoor

et al. 2019

Chem Rep

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Hydrogen peroxide (H 2 O 2), first synthesized in 1818 through the acidification of barium peroxide (BaO 2) with nitric acid, is a clear and colorless liquid which is entirely miscible with water and variety of organic solvents such as carboxylic acid and esters. Anthraquinone process (an old production process of H 2 O 2), a batch process carried out in large facilities is an energy demanding process that requires large facilities, and involves oxidation of anthraquinone molecules and sequential hydrogenation. Moreover, the direct synthesis method enables production in a continuous mode as well as it permits small scale, decentralized production. Many drawbacks associated with these processes such as, energetic inefficiency and inherent disadvantages have motivated researchers, industry and academia to find out alternative for synthesis of H 2 O 2. Electrochemical route based on catalyst selectively reduce oxygen to hydrogen peroxide. O 2 is cathodically reduced to produce H 2 O 2 via 2-electron pathway or 4-electron pathway to get H 2 O. Electrolysis of water has an important place in storage and electrochemical energy conversion process where problem is to choose a sufficiently stable and active electrode for anodic oxygen evolution reaction. Most commonly used catalysts on the cathode are carbon based materials such as carbon black, carbon nanotubes, graphite, carbon sponge, and carbon fiber. In perspective of expanding demand of production and usage of hydrogen peroxide we review the past literature to summarize different production processes of H 2 O 2. In this review, we mainly focus on electrochemical production of hydrogen peroxide along with other alternatives, such as anthraquinone method for industrial H 2 O 2 production and direct synthesis process. We also review the catalytic activity, selectivity and stability for enhanced yield of H 2 O 2. From revision of last two decade's literature including experimental and theoretical data; we argue that successful implementation of electrochemical H 2 O 2 production can be realized on the basis of stable, active and selective catalyst.

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Section: Electroreduction Of Oxygenmentioning

confidence: 99%

Recent progress on electrochemical production of hydrogen peroxide

Sehrish

Manzoor

et al. 2019

Chem Rep

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“…Amatore’s group microfabricated a platinum-black coated platinum (Pt/Pt-black) electrode that showed high sensitivity, allowing almost five decades of concentration with a detecting limitation down to 10 nM [16]. In many recent works, several alloys based on Pt have been verified to possess even better performance than pristine Pt with improved catalytical activity, anti-interference, and long-term duration originating from the specific interaction in the alloys [17,18,19,20]. However, such nano-catalysts with extremely high surface energy cannot directly modify the electrode alone but have to be used with an essential support material to obtain satisfactory dispersibility and well-controlled particle size for sensing application.…”

Section: Introductionmentioning

confidence: 99%

“…Among many possibilities, graphene oxide (GO) has been widely accepted as one extraordinary candidate for immobilizing the precursor of the catalysts owing to its substantial lattice defects and chemical groups [21]. Furthermore, the subsequent reduced graphene oxide (rGO) is a typical good conductor for electrochemical sensors with several superiorities, e.g., large surface area, excellent electron transport, as well as wide potential window [17,22,23,24,25,26]. To date, a good performance of the modified electrode on the basis of graphene and Pt-based catalyst composites has been reported in a great deal of literature [17,22,27,28,29].…”

Section: Introductionmentioning

confidence: 99%

“…However, there is still significant room for improvement in, for example, the aggregation for both graphene sheets and catalytic particles. To overcome this issue, the surfactants were introduced onto the graphene surfaces to counter the agglomeration and the hydrophobic properties of both graphene and metal-nanoparticles, such as cetyl trimethyl ammonium bromide (CTAB), sodium dodecyl benzyl sulfate (SDBS), and sodium dodecyl sulfate (SDS) [17,30,31,32,33,34]. These surfactants can not only contribute to perfecting the dispersion of the nano-components but can also facilitate the size construability of the catalysts due to the amplified active area for anchoring the metallic precursor or particles.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Facile Fabrication of Hierarchical rGO/PANI@PtNi Nanocomposite via Microwave-Assisted Treatment for Non-Enzymatic Detection of Hydrogen Peroxide

Yin

Sharma

et al. 2019

Nanomaterials

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A hierarchical composite based on the modified reduced graphene oxide with platinum-nickel decorated polyaniline nano-spheres (rGO/PANI@PtNi) was facilely prepared via microwave-assisted self-reduction for an application in nonenzymatic hydrogen peroxide (H2O2) detection. Compared to the pristine rGO, the composite exhibited a much tougher surface due to the stacking of conductive PANI nano-spheres on rGO sheets, leading to good dispersion of PtNi nanoparticles and a large active area. Furthermore, the multi-valance Ni2+/3+ in the PtNi particles effectively promoted the catalytic property of Pt sites and facilitated a superior electrochemical performance of PtNi alloy than that of neat Pt. Owing to the synergistic effect of the improved electrical conductivity and the promoted electrocatalytical property, the modified glassy carbon electrode (GCE) with rGO/PANI@PtNi nanocomposite displayed an outstanding electrochemical sensitivity towards H2O2 with a fast response time (<2 s), a wide linear range (0.1–126.4 mM), a low detection limit (0.5 µM), as well as a long-life stability for one week without obvious degradation. This novel strategy opens a novel and promising approach to design high performance sensors for H2O2 detection.

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“…Conventionally, the measurable signal of ELISA is generated by conversion of the enzyme substrate into a coloured molecule [6][7][8]. Unfortunately, natural enzymes have several intrinsic shortcomings, including limited lifetime, high cost and complex experimental conditions [9][10][11][12]. Although various inorganic nanoparticles with enzyme mimetic activities, such as carbon materials [13][14][15], metal oxides [16,17], and noble metal nanoparticles or nanoclusters [18][19][20] could be used to replace the natural enzymes, some heavy metal ions, such as Ag ?…”

Section: Introductionmentioning

confidence: 99%