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Dokhan S, di Caprio D, Taleb A, Reis FDAA. Effects of Adsorbate Diffusion and Edges in a Transition from Particle to Dendritic Morphology during Silver Electrodeposition. ACS APPLIED MATERIALS & INTERFACES 2022; 14:49362-49374. [PMID: 36281976 DOI: 10.1021/acsami.2c15258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
During silver electrodeposition on Au nanoparticle (NP)-covered highly oriented pyrolitic graphite, a transition from an initial growth of microsized particles to the growth of dendrites with pine tree shape (nanotrees) is observed, which is an advancement for material growth with hierarchical surface roughness. Using kinetic Monte Carlo simulations of an electrodeposition model, those results are explained by the interplay of diffusive cation flux in the electrolyte and relaxation of adsorbed atoms by diffusion on quenched crystal surfaces. First, simulations on NP-patterned substrates show the initial growth of faceted silver particles, followed by the growth of nanotrees with shapes similar to the experiments. Next, simulations on electrodes with large prebuilt particles explain the preferential nanotree growth at corners and edges as a tip effect. Simulations on wide flat electrodes relate the nanotree width with two model parameters describing surface diffusion of silver atoms: maximal number of random hops (G) and probability of hop per neighbor (P). Finally, simulations with small electrode seeds confirm the transition from initially compact particles to the nucleation of nanotrees and provide estimates of the transition sizes as a function of those parameters. The simulated compact and dendritic deposits show dominant (111) surface orientation, as observed in experiments. Extrapolations of simulation results to match microparticle and nanotree sizes lead to G = 4 × 1011 and P = 0.03, suggesting to interpret those sizes as diffusion lengths on the growing surfaces and giving diffusion coefficients 2 to 3 × 10-13 m2/s for deposited silver atoms. These results may motivate studies to relate diffusion coefficients with atomic-scale interactions.
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Affiliation(s)
- Sohère Dokhan
- PSL Research University, Chimie ParisTech─CNRS, Institut de Recherche de Chimie Paris, 75005Paris, France
- Unité de Recherche Matériaux, Procédés et Environnement URMPE, Faculté des Sciences, Université M'hamed Bougara de Boumerdés, 35000Boumerdés, Algerie
| | - Dung di Caprio
- PSL Research University, Chimie ParisTech─CNRS, Institut de Recherche de Chimie Paris, 75005Paris, France
| | - Abdelhafed Taleb
- PSL Research University, Chimie ParisTech─CNRS, Institut de Recherche de Chimie Paris, 75005Paris, France
- Sorbonne Universités, 75231Paris, France
| | - Fábio D A Aarão Reis
- Instituto de Física, Universidade Federal Fluminense, Avenida Litorânea s/n, 24210-340Niterói, Rio de Janeiro, Brazil
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Wang J, Luo Z, Lin X. An ultrafast electrochemical synthesis of Au@Ag core-shell nanoflowers as a SERS substrate for thiram detection in milk and juice. Food Chem 2022; 402:134433. [DOI: 10.1016/j.foodchem.2022.134433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/25/2022] [Accepted: 09/26/2022] [Indexed: 11/17/2022]
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Ceballos M, López I, Arizmendi-Morquecho A, Sánchez-Domínguez M. Attomolar detection of 4-aminothiophenol by SERS using silver nanodendrites decorated with gold nanoparticles. NANOTECHNOLOGY 2022; 33:385602. [PMID: 35700703 DOI: 10.1088/1361-6528/ac7882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/14/2022] [Indexed: 06/15/2023]
Abstract
In the present work we report a simple, fast, reproducible and cheap methodology for surface enhanced Raman spectroscopy (SERS) substrate fabrication of silver dendritic nanostructures (prepared by electrodeposition) decorated with gold nanospheres by electrophoretic deposition. This is the first report where a metal dendritic nanostructure has been decorated with another type of metal nanoparticles by this technique. The decorated nanostructures were used directly as SERS substrate using 4-aminothiophenol (4-ATP) as analyte. The objective of the decoration is to create more hot-spots in order to detect the analyte in a lower concentration. Decorated nanodendrites had a detection limit one million times lower than bare silver nanodendrites and all the substrates showed an increase in the Raman intensity at concentrations below 1 nM; because this concentration corresponds to the threshold for the formation of a monolayer resulting in a triple mechanism of intensity increase, namely electric field, chemical factor and hot-spots. 4-ATP was detected in attomolar concentration, which is below 1 ppq, corresponding to an analytical enhancement factor in the order of 1015.
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Affiliation(s)
- Manuel Ceballos
- Centro de Investigación en Materiales Avanzados, S. C. (CIMAV), Unidad Monterrey, Alianza Norte 202, Parque de Investigación e Innovación Tecnológica, 66628, Apodaca, Nuevo León, Mexico
| | - Israel López
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Químicas, Laboratorio de Materiales I, Av. Universidad, Cd. Universitaria, 66455, San Nicolás de los Garza, Nuevo León, Mexico
- Universidad Autónoma de Nuevo León, UANL, Centro de Investigación en Biotecnología y Nanotecnología (CIBYN), Laboratorio de Nanociencias y Nanotecnología, Parque de Investigación e Innovación Tecnológica (PIIT), 66629, Apodaca, Nuevo León, Mexico
| | - Ana Arizmendi-Morquecho
- Centro de Investigación en Materiales Avanzados, S. C. (CIMAV), Unidad Monterrey, Alianza Norte 202, Parque de Investigación e Innovación Tecnológica, 66628, Apodaca, Nuevo León, Mexico
| | - Margarita Sánchez-Domínguez
- Centro de Investigación en Materiales Avanzados, S. C. (CIMAV), Unidad Monterrey, Alianza Norte 202, Parque de Investigación e Innovación Tecnológica, 66628, Apodaca, Nuevo León, Mexico
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Liu C, Wu J, Wang S, Fang J. Directional controllable electrodeposition growth of homogeneous Au nano-rampart arrays and its reliable SERS applications. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Ceballos M, López I, Arizmendi-Morquecho A, Sánchez-Domínguez M. Zeptomolar detection of 4-aminothiophenol by SERS using silver nanodendrites decorated with gold nanoparticles. NANOTECHNOLOGY 2021; 33:125601. [PMID: 34875636 DOI: 10.1088/1361-6528/ac40be] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 12/07/2021] [Indexed: 06/13/2023]
Abstract
In the present work, we report a simple, fast, reproducible and cheap methodology for SERS substrate fabrication of silver dendritic nanostructures (prepared by electrodeposition) decorated with gold nanospheres by electrophoretic deposition. This is the first report where a metal dendritic nanostructure has been decorated with another type of metal nanoparticles by this technique. The decorated nanostructures were used directly as SERS substrate using 4-aminothiophenol (4-ATP) as analyte. The objective of the decoration is to create more hot-spots in order to detect the analyte in a lower concentration. Decorated nanodendrites had a detection limit one million times lower than bare silver nanodendrites and all the substrates showed an increase in the Raman intensity at concentrations below 1 nM; because this concentration corresponds to the threshold for the formation of a monolayer resulting in a triple mechanism of intensity increase, namely electric field, chemical factor and hot-spots. 4-ATP was detected in zeptomolar concentration, which is below 1 ppq, corresponding to an analytical enhancement factor in the order of 1015.
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Affiliation(s)
- Manuel Ceballos
- Centro de Investigación en Materiales Avanzados, S. C. (CIMAV), Unidad Monterrey, Alianza Norte 202, Parque de Investigación e Innovación Tecnológica, 66628, Apodaca, Nuevo León, Mexico
| | - Israel López
- Universidad Autónoma de Nuevo León, UANL, Facultad de Ciencias Químicas, Laboratorio de Materiales I, Av. Universidad, Cd. Universitaria, 66455, San Nicolás de los Garza, Nuevo León, Mexico
- Universidad Autónoma de Nuevo León, UANL, Centro de Investigación en Biotecnología y Nanotecnología (CIBYN), Laboratorio de Nanociencias y Nanotecnología, Parque de Investigación e Innovación Tecnológica (PIIT), 66629, Apodaca, Nuevo León, Mexico
| | - Ana Arizmendi-Morquecho
- Centro de Investigación en Materiales Avanzados, S. C. (CIMAV), Unidad Monterrey, Alianza Norte 202, Parque de Investigación e Innovación Tecnológica, 66628, Apodaca, Nuevo León, Mexico
| | - Margarita Sánchez-Domínguez
- Centro de Investigación en Materiales Avanzados, S. C. (CIMAV), Unidad Monterrey, Alianza Norte 202, Parque de Investigación e Innovación Tecnológica, 66628, Apodaca, Nuevo León, Mexico
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