Dopamine and ascorbic acid electro-oxidation on Au, AuPt and Pt nanoparticles prepared by pulse laser ablation in water

Oko, Daniel Nii; Garbarino, Sébastien; Zhang, Jianming; Xu, Zhenhe; Chaker, Mohamed; Ma, Dongling; Guay, Daniel; Tavares, Ana C.

doi:10.1016/j.electacta.2015.01.192

Cited by 61 publications

(27 citation statements)

References 51 publications

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“…[76] Cata- lytic results identified that the loading of 4wt% resulted in an optimal performance with respect to both conversion and yield of acetic acid, well outperformingt he commercialc atalyst. The similar behavior was also observed for these PtAu alloy NPs used as electrochemicalc atalyst in formic acid and dopamine electro-oxidation, [140,141] indicating that the PtAu alloy NPs can be used as ap romising catalyst which can largely enhance the detection performance of biosensors (high sensitivity and low detection limit). [76] Recently,p lasmonic photocatalysis has come into af ocus as ah ighly promising technique for visible-light driven photocatalysis, such as photodepollution and photocatalyzedw ater splitting, due to the classic SPR effecto fp lasmonic metal NPs, that is, Au NPs.…”

Section: Catalysissupporting

confidence: 59%

Colloidal Metal Nanoparticles Prepared by Laser Ablation and their Applications

et al. 2017

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This review article highlights the recent advances of the synthesis and application of metal nanoparticles (NPs) fabricated via pulsed laser ablation in liquid (PLAL) phase and also introduces relevant NP formation mechanisms. Although wet-chemical approaches have been well established to synthesize colloidal metal NPs with various components and structures, some inherent drawbacks, such as reaction residuals and/or contaminations, largely limit some of their applications. The PLAL method has recently been developed as an alternative approach and received increasing attention for colloidal NP preparation, without involving complicated chemical reactions. In certain cases, by using PLAL, ligand-free and surface-clean NPs can be obtained and well dispersed in liquid, leading to the formation of a "surface-clean" NP dispersion. This unique feature renders PLAL-synthesised metal NPs attractive candidates for many interesting applications in catalysis, biology, sensing, and clean energy generation and storage. We conclude this review by proposing several interesting research directions and future challenges, from PLAL fabrication to applications. We hope this review can serve as a good reference and help with the further development of PLAL-NPs and their diverse applications.

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Section: Catalysissupporting

confidence: 59%

Colloidal Metal Nanoparticles Prepared by Laser Ablation and their Applications

et al. 2017

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“…[15,17] The latter route not just leads to cheaper targets but also to time saving since series testing can be conducted by finely tuning the target and ultimately the nanoparticle composition. For instance,d ifferent catalysts for water oxidation as shown for NiFe LDH (layered double hydroxide) [18,19] or PtAu [15,20] alloy series for electrochemical reactions could be tested by using this route.…”

Section: Introductionmentioning

confidence: 99%

Ultrasmall Yttrium Iron Garnet Nanoparticles with High Coercivity at Low Temperature Synthesized by Laser Ablation and Fragmentation of Pressed Powders

et al. 2017

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Pulsed laser ablation of pressed yttrium iron garnet powders in water is studied and compared to the ablation of a single-crystal target. We find that target porosity is a crucial factor, which has far-reaching implications on nanoparticle productivity. Although nanoparticle size distributions obtained by analytical disc centrifugation and transmission electron microscopy (TEM) are in agreement, X-ray diffraction and energy dispersive X-ray analysis show that only nanoparticles obtained from targets with densities close to that of a bulk target lead to comparable properties. Our findings also show why the gravimetrical measurement of nanoparticle productivity is often flawed and needs to be complemented by colloidal productivity measurements. The synthesized YIG nanoparticles are further reduced in size by laser fragmentation to obtain sizes smaller than 3 nm. Since the particle diameters are close to the YIG lattice constant, these ultrasmall nanoparticles reveal an immense change of the magnetic properties, exhibiting huge coercivity (0.11 T) and irreversibility fields (8 T) at low temperatures.

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“…The second appealing advantage of the LSPC technique for catalytic applications is the one‐step convenient synthesis of bi‐ (core–shell, intermetallic/alloyed structures, and heterostructure) and trimetallic NPs, which are always difficult to obtain by conventional methods . Synergistic effects of LAL‐synthesized nanoalloys have been confirmed by nickel–molybdenum and gold–iron NPs for the oxygen evolution reaction (OER), copper–nickel NPs for photocatalytic hydrogen evolution, and gold–platinum NPs for both 4‐nitrophenol reduction and electro‐oxidation of ascorbic acid …”

Section: Introductionmentioning

confidence: 99%

“…[14] Synergistic effectso fL ALsynthesized nanoalloys have been confirmed by nickel-molybdenum and gold-iron NPs for the oxygen evolution reaction (OER), [15] copper-nickel NPs for photocatalytic hydrogen evolution, [16] and gold-platinum NPs for both 4-nitrophenol reduction [17] and electro-oxidationo f ascorbic acid. [18] Owing to the unique surfactant-free feature, LAL-synthesized catalysts have displayed betterp erformances than those of commercialc atalysts (Pt/C and P25 TiO 2 ). For example, the electrocatalytic activity of the LAL-synthesized platinum-cobalt alloy NPs (mass activity of 0.28 mA mg Pt À1 and specific activity of 1.18 mA cm À2 )i st wo and five times higher than those of the commercial Pt/C (0.09 mA mg Pt À1 and 0.19 mA cm À2 )f or water oxidation.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Surfactant‐Free, Surface‐Charged, and Defect‐Rich Catalysts Developed by Laser Ablation and Processing in Liquids

Zhang

et al. 2017

ChemNanoMat

115

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For excellence in the synthesis of highly active metal and oxide catalysts, a newly emerging technique—laser synthesis and processing of colloids (LSPC)—is gaining increasing attention for catalytic applications, such as water splitting, fuel cells, and photodegradation of organic pollutants. The advantages of using LSPC‐synthesized metal catalysts have been reviewed elsewhere [Chem. Rev. 2017, 117, 3990–4103]. Herein, current challenges related to the properties (surface chemistry and particle evolution) of metal catalysts synthesized by laser ablation in liquids/laser processing in liquids are discussed. The main focus is on the advantages of LSPC in surfactant‐free defect engineering of oxide nanoparticles. Compared with other techniques (e.g., hydrogenation), LSPC provides a unique platform to simultaneously introduce oxygen vacancies and surface disorders into oxide (e.g., TiO2) nanomaterials; thus allowing narrowing of the band gap from both conduction and valence bands. Defect‐rich oxides have versatile uses, such as being directly applied as photocatalysts and as building blocks to construct supported, doped, and ternary oxide photocatalysts for electrochemical and photocatalytic applications. The LSPC‐synthesized catalysts are promising for applications as commercial catalysts in light of their higher activities than those of current Pt/C and P25 TiO2 commercial catalysts.

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Dopamine and ascorbic acid electro-oxidation on Au, AuPt and Pt nanoparticles prepared by pulse laser ablation in water

Cited by 61 publications

References 51 publications

Colloidal Metal Nanoparticles Prepared by Laser Ablation and their Applications

Colloidal Metal Nanoparticles Prepared by Laser Ablation and their Applications

Ultrasmall Yttrium Iron Garnet Nanoparticles with High Coercivity at Low Temperature Synthesized by Laser Ablation and Fragmentation of Pressed Powders

Recent Advances in Surfactant‐Free, Surface‐Charged, and Defect‐Rich Catalysts Developed by Laser Ablation and Processing in Liquids

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