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Biswas S, Naskar H, Pradhan S, Wang Y, Bandyopadhyay R, Pramanik P. Simultaneous voltammetric determination of Adrenaline and Tyrosine in real samples by neodymium oxide nanoparticles grafted graphene. Talanta 2020; 206:120176. [DOI: 10.1016/j.talanta.2019.120176] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 07/12/2019] [Accepted: 07/24/2019] [Indexed: 12/11/2022]
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2
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Fezai F, Séverac C, Gros P, Meireles M, Evrard D. A New Sensor with Increased Lifetime Based on a Mixed Diazonium Thick Film/Gold Nanoparticles Interface for Hg(II) Trace Detection. ELECTROANAL 2019. [DOI: 10.1002/elan.201900434] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Fatma Fezai
- Laboratoire de Génie ChimiqueUniversité de Toulouse, CNRS, INPT, UPS Toulouse France
| | | | - Pierre Gros
- Laboratoire de Génie ChimiqueUniversité de Toulouse, CNRS, INPT, UPS Toulouse France
| | - Martine Meireles
- Laboratoire de Génie ChimiqueUniversité de Toulouse, CNRS, INPT, UPS Toulouse France
| | - David Evrard
- Laboratoire de Génie ChimiqueUniversité de Toulouse, CNRS, INPT, UPS Toulouse France
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3
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Sol-gel synthesis of cubic titanium dioxide nanoparticle using poly(ethylene glycol) as a capping agent: voltammetric simultaneous determination of uric acid and guanine. Mikrochim Acta 2018; 185:513. [DOI: 10.1007/s00604-018-3042-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 10/04/2018] [Indexed: 01/13/2023]
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4
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Rodríguez González MC, Rivera LM, Pastor E, Hernández Creus A, García G. A facile method for the fabrication of hierarchical nanosized metal catalysts. J Catal 2018. [DOI: 10.1016/j.jcat.2018.07.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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High index surfaces of Au-nanocrystals supported on one-dimensional MoO3-nanorod as a bi-functional electrocatalyst for ethanol oxidation and oxygen reduction. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.06.040] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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González MCR, Orive AG, Salvarezza RC, Creus AH. Electrodeposition of gold nanoparticles on aryl diazonium monolayer functionalized HOPG surfaces. Phys Chem Chem Phys 2015; 18:1953-60. [PMID: 26685776 DOI: 10.1039/c5cp06415e] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gold nanoparticle electrodeposition on a modified HOPG surface with a monolayer organic film based on aryl diazonium chemistry has been studied. This organic monolayer is electrochemically grown with the use of 2,2-diphenyl-1-picrylhydrazyl (DPPH), a radical scavenger. The electrodeposition of gold on this modified surface is highly favored resulting in an AuNP surface density comparable to that found on glassy carbon. AuNPs grow only in the areas covered by the organic monolayer leaving free clean HOPG zones. A progressive mechanism for the nucleation and growth is followed giving hemispherical AuNPs, homogeneously distributed on the surface and their sizes can be well controlled by the applied electrodeposition potential. By using AFM, C-AFM and electrochemical measurements with the aid of two redox probes, namely Fe(CN)6(4-)/Fe(CN)6(3-) and dopamine, relevant results about the electrochemical modified surface as well as the gold nanoparticles electrodeposited on them are obtained.
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Affiliation(s)
- M C R González
- Área de Química Física, Departamento de Química, Facultad de Ciencias, Universidad de La Laguna, Instituto de Materiales y Nanotecnología, Avda. Francisco Sánchez s/n, 38071-La Laguna, Tenerife, Spain.
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7
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Ren X, Song Y, Liu A, Zhang J, Yang P, Zhang J, Yuan G, An M, Osgood H, Wu G. Role of polyethyleneimine as an additive in cyanide-free electrolytes for gold electrodeposition. RSC Adv 2015. [DOI: 10.1039/c5ra12217a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Study of the influence of polyethyleneimine on the cyanide-free gold nucleation process and morphology of gold electrodeposits.
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8
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Gründer Y, Ramasse QM, Dryfe RAW. A facile electrochemical route to the preparation of uniform and monoatomic copper shells for gold nanoparticles. Phys Chem Chem Phys 2015; 17:5565-8. [DOI: 10.1039/c4cp05804f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Monoatomic copper shells are electrodeposited onto gold nanoparticles without the presence of a solid substrate.
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Affiliation(s)
- Y. Gründer
- School of Chemistry
- University of Manchester
- Manchester M13 9PL
- UK
| | - Q. M. Ramasse
- SuperSTEM Laboratory
- SciTech Daresbury Campus
- Daresbury WA4 4AD
- UK
| | - R. A. W. Dryfe
- School of Chemistry
- University of Manchester
- Manchester M13 9PL
- UK
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9
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Effect of different chemical modification of carbon nanotubes for the oxygen reduction reaction in alkaline media. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.04.123] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Fabrication of a highly sensitive sumatriptan sensor based on ultrasonic-electrodeposition of Pt nanoparticles on the ZrO2 nanoparticles modified carbon paste electrode. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2013.10.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Lin C, Song Y, Cao L, Chen S. Oxygen reduction catalyzed by Au-TiO2 nanocomposites in alkaline media. ACS APPLIED MATERIALS & INTERFACES 2013; 5:13305-13311. [PMID: 24215534 DOI: 10.1021/am404253b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Au-TiO2 nanocomposites were prepared by chemical deposition of gold nanoparticles onto TiO2 nanocolloids that were synthesized by a hydrothermal method. Transmission electron microscopic measurements showed that the TiO2 colloids exhibited an average diameter of about 5 nm and clearly defined lattice fringes that were consistent with those of anatase TiO2 and formed rather large agglomerates that spanned a few hundred nanometers in length. Additionally, gold nanoparticles were found to be embedded within the TiO2 matrices, and the size increased with increasing gold loading but all ranged from 10 to 50 nm in diameter. Consistent results were obtained in X-ray diffraction measurements. Electrochemical studies demonstrated that the resulting Au-TiO2 nanocomposites exhibited apparent electrocatalytic activity in oxygen reduction that was markedly improved as compared to that of TiO2 particles alone, as reflected in the onset potential, number of electron transfers involved, and kinetic current density. Among the series, the best catalyst for oxygen reduction was identified with the Au/Ti atomic ratio of 5.2%. The enhanced oxygen reduction kinetics was ascribed to the dissociation of water and formation of surface-adsorbed hydroxyl moieties that was facilitated by the loading of gold nanoparticles onto the TiO2 colloids.
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Affiliation(s)
- Chan Lin
- College of Chemistry and Chemical Engineering, Ocean University of China , Qingdao, Shandong 266100, China
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12
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Gründer Y, Fabian MD, Booth SG, Plana D, Fermín DJ, Hill PI, Dryfe RA. Solids at the liquid–liquid interface: Electrocatalysis with pre-formed nanoparticles. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.03.185] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Zhou YG, Rees NV, Pillay J, Tshikhudo R, Vilakazi S, Compton RG. Gold nanoparticles show electroactivity: counting and sorting nanoparticles upon impact with electrodes. Chem Commun (Camb) 2012; 48:224-6. [DOI: 10.1039/c1cc16407d] [Citation(s) in RCA: 132] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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14
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Komorsky-Lovrić Š, Lovrić M. Theory of square-wave voltammetry of two-step electrode reaction with kinetically stabilized intermediate. J Electroanal Chem (Lausanne) 2011. [DOI: 10.1016/j.jelechem.2011.05.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Blocking properties of gold electrodes modified with 4-nitrophenyl and 4-decylphenyl groups. J Solid State Electrochem 2011. [DOI: 10.1007/s10008-011-1381-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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16
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Mirkhalaf F, Mason TJ, Morgan DJ, Saez V. Frequency effects on the surface coverage of nitrophenyl films ultrasonically grafted onto indium tin oxide. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:1853-1858. [PMID: 21218810 DOI: 10.1021/la104402z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The covalent attachment of various organic molecules on conductive supports including indium tin oxide (ITO) using diazonium chemistry has been known for many years. A commonly used method to achieve this is the electrochemical reduction of diazonium compounds leading to radicals, followed by binding of the radicals to the support. In the present report, an alternative method using ultrasound at different frequencies (20, 582, 863, and 1142 kHz) to induce the surface grafting of nitrobenzene diazonium onto an ITO surface is described. It is shown that the grafting on ITO is more efficient in the lower ultrasonic frequency range that is ascribed to changes in the balance between the physical and chemical effects of cavitation with frequency. Both the physical and chemical effects of cavitation play important roles at all frequencies, but at high ultrasound frequencies, the physical effects are relatively small. At 20 kHz, the physical component, including mass transport, is larger than at higher frequencies, and mechanisms based on these observations have been proposed. Ultrasonic grafting has an advantage over electrografting in that it may provide more control over surface coverage, thus it is suggested that the ultrasonic method is used where the surface concentration of the organic layer must be controlled.
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Affiliation(s)
- Fakhradin Mirkhalaf
- Sonochemistry Centre, Faculty of Health and Life Sciences, Coventry University, Coventry CV1 5FB, UK.
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Kissling GP, Miles DO, Fermín DJ. Electrochemical charge transfer mediated by metal nanoparticles and quantum dots. Phys Chem Chem Phys 2011; 13:21175-85. [DOI: 10.1039/c1cp21996k] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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18
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Li Q, Batchelor-McAuley C, Lawrence NS, Hartshorne RS, Compton RG. The synthesis and characterisation of controlled thin sub-monolayer films of 2-anthraquinonyl groups on graphite surfaces. NEW J CHEM 2011. [DOI: 10.1039/c1nj20461k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Mazloum-Ardakani M, Beitollahi H, Amini MK, Mirkhalaf F, Mirjalili BF, Akbari A. Application of 2-(3,4-dihydroxyphenyl)-1,3-dithialone self-assembled monolayer on gold electrode as a nanosensor for electrocatalytic determination of dopamine and uric acid. Analyst 2011; 136:1965-70. [DOI: 10.1039/c0an00823k] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Kullapere M, Mirkhalaf F, Tammeveski K. Electrochemical behaviour of glassy carbon electrodes modified with aryl groups. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2010.08.104] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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Mirkhalaf F, Schiffrin DJ. Electrocatalytic oxygen reduction on functionalized gold nanoparticles incorporated in a hydrophobic environment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:14995-5001. [PMID: 20799698 DOI: 10.1021/la1021565] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The electrocatalytic properties of gold nanoparticles covalently capped with a monolayer film of 1,4-decylphenyl groups for oxygen reduction in an alkaline solution have been studied. Functionalized nanoparticles were adsorbed on a film of the same capping ligand previously grafted to a glassy carbon electrode. The molecular film-nanoparticle assembly was characterized by cyclic voltammetry and XPS. It is shown that although the attachment of the capping ligand to the electrode surface blocks direct electron transfer, the metal centers of the incorporated nanoparticles provide sites for electron tunneling from the electrode surface thus leading to sites where oxygen reduction can take place. Rotating disk voltammetry shows that the oxygen reduction reaction follows mainly a peroxide formation channel on these nanostructured surfaces. The capping ligand greatly influences the reduction mechanism by establishing a local hydrophobic environment at the reaction centers within the film.
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Affiliation(s)
- Fakhradin Mirkhalaf
- Sonochemistry Centre, Faculty of Health and Life Sciences, Coventry University, Coventry, CV1 5FB, UK.
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Mamuru SA, Ozoemena KI, Fukuda T, Kobayashi N, Nyokong T. Studies on the heterogeneous electron transport and oxygen reduction reaction at metal (Co, Fe) octabutylsulphonylphthalocyanines supported on multi-walled carbon nanotube modified graphite electrode. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2010.06.056] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Alexeyeva N, Matisen L, Saar A, Laaksonen P, Kontturi K, Tammeveski K. Kinetics of oxygen reduction on gold nanoparticle/multi-walled carbon nanotube hybrid electrodes in acid media. J Electroanal Chem (Lausanne) 2010. [DOI: 10.1016/j.jelechem.2010.01.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Kullapere M, Kozlova J, Matisen L, Sammelselg V, Menezes HA, Maia G, Schiffrin DJ, Tammeveski K. Electrochemical properties of aryl-modified gold electrodes. J Electroanal Chem (Lausanne) 2010. [DOI: 10.1016/j.jelechem.2009.12.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Jirkovský JS, Halasa M, Schiffrin DJ. Kinetics of electrocatalytic reduction of oxygen and hydrogen peroxide on dispersed gold nanoparticles. Phys Chem Chem Phys 2010; 12:8042-52. [DOI: 10.1039/c002416c] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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