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Kinetics and Mechanism of Tin Electrodeposition from Fluoroborate Bath onto Pencil Graphite Electrode. Electrocatalysis (N Y) 2022. [DOI: 10.1007/s12678-022-00776-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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2
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Chong H, Zhang G, Wu Y, Xu B, Wang G, Wang C. Enantioselective recognition of amino acid based on electrochemical deposition and X-ray diffraction technology. J Inorg Biochem 2021; 218:111398. [PMID: 33684685 DOI: 10.1016/j.jinorgbio.2021.111398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 02/01/2023]
Abstract
Addition of D-Asp in the electrochemical deposition process of Bismuth film resulted the generation of a new diffraction peak in X-ray diffraction (XRD) spectrum. This phenomenon was not observed in the situation of L-Asp. The new diffraction peak might suggest D-Asp could result in the generation of a specific Bismuth structure. Enantioselective recognition of D- and L-Asp can be realized based on this new XRD peak. The limit of detection was determined to be 3.5 × 10-8 and 1.7 × 10-8 mol L-1 for D- and L-Asp, respectively. The XRD spectra of electrodeposited Copper films fabricated in the presence of D- or L-Asp showed different lattice plane diffraction peak intensity ratios. The reason was believed to be chirality induced different binding capabilities of Asp enantiomers that influenced Copper film growth. Therefore, the combination of electrochemical deposition using Copper as metal source and XRD technology can be used to achieve enantioselective recognition of Asp. The limit of detection for D- and L-Asp were determined to be 1.5 × 10-10 and 1.2 × 10-11 mol L-1, respectively.
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Affiliation(s)
- Hui Chong
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Gaomin Zhang
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, China
| | - Yaohang Wu
- College of Materials Science and Engineering, Jilin University, Changchun City, Jilin Province, China
| | - Bin Xu
- Testing Center of Yangzhou University, City of Yangzhou, Jiangsu Province, China
| | - Guoxiu Wang
- School of Mathematical and Physical Sciences, PO Box 123, Broadway, Sydney, NSW, 2007 Australia.
| | - Chengyin Wang
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, China; Testing Center of Yangzhou University, City of Yangzhou, Jiangsu Province, China.
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3
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Esmailzadeh S, Shahrabi T, Yaghoubinezhad Y, Darband GB. An analytical study on nucleation and growth mechanism of nanostructured Ni-Se coating by the chronoamperometry and pulse potential techniques. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2020.114949] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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4
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Isaev VA, Grishenkova OV, Zaikov YP. Theoretical aspects of 2D electrochemical phase formation. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04847-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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El-Hallag IS, Moharram YI, Darweesh MA, Tartour AR. Factors Affecting Nucleation and Growth of Chromium Electrodeposited from Cr3+ Electrolytes Based on Deep Eutectic Solvents. J ELECTROCHEM SCI TE 2020. [DOI: 10.33961/jecst.2020.00731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Gupta A, Srivastava C. Nucleation and growth mechanism of tin electrodeposition on graphene oxide: A kinetic, thermodynamic and microscopic study. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.113964] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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7
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Esmailzadeh S, Shahrabi T, Barati Darband G, Yaghoubinezhad Y. Pulse electrodeposition of nickel selenide nanostructure as a binder-free and high-efficient catalyst for both electrocatalytic hydrogen and oxygen evolution reactions in alkaline solution. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135549] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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8
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Pham-Truong TN, Mebarki O, Ranjan C, Randriamahazaka H, Ghilane J. Electrochemical Growth of Metallic Nanoparticles onto Immobilized Polymer Brush Ionic Liquid as a Hybrid Electrocatalyst for the Hydrogen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2019; 11:38265-38275. [PMID: 31554394 DOI: 10.1021/acsami.9b11407] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Platinum and palladium are the first choice electrocatalysts to drive the hydrogen evolution reaction. In this report, surface modification was introduced as a potential approach to generate hybrid electrocatalyst. The immobilized polymer brush, poly(1-allyl-3-methylimidazolium) (PAMI), was used as a nanostructured template for guiding the electrochemical deposition of metallic nanoparticles (Pd, Pt). The intrinsic properties of the polymer brush in term of nanostructured architecture and the anions mobility within the polymer was exploited to generate a hybrid electrocatalyst. The latter was generated using two different approaches including the direct electrochemical deposition of Pd or Pt metal and the indirect approach through the anion exchange reaction followed by the electrochemical deposition under self-electrolytic conditions. The hybrid structure based on the polymer/metallic NP exhibits an enhancement of the catalytic performance toward hydrogen evolution reaction with a low Tafel slope and overpotential. Interestingly, the indirect approach leads to decrease the metal loading by two orders of magnitude, when compared to those generated in the absence of the polymeric layer, while retaining the electrocatalytic performance.
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Affiliation(s)
- Thuan-Nguyen Pham-Truong
- Université de Paris, ITODYS, CNRS, UMR 7086, SIELE group , 15 rue J-A de Baïf , F-75013 Paris , France
| | - Ouiza Mebarki
- Université de Paris, ITODYS, CNRS, UMR 7086, SIELE group , 15 rue J-A de Baïf , F-75013 Paris , France
| | - Christine Ranjan
- Université de Paris, ITODYS, CNRS, UMR 7086, SIELE group , 15 rue J-A de Baïf , F-75013 Paris , France
| | - Hyacinthe Randriamahazaka
- Université de Paris, ITODYS, CNRS, UMR 7086, SIELE group , 15 rue J-A de Baïf , F-75013 Paris , France
| | - Jalal Ghilane
- Université de Paris, ITODYS, CNRS, UMR 7086, SIELE group , 15 rue J-A de Baïf , F-75013 Paris , France
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9
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Pourrahimi S, Rezaei M, Tabaian SH. Electrochemical investigation of Pt–Pd nanoparticles formation–reduction kinetics and nucleation mechanisms. J APPL ELECTROCHEM 2019. [DOI: 10.1007/s10800-019-01354-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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10
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Aguirre MDC. Nucleation and growth mechanisms of palladium, nanoflower-shaped, and its performance as electrocatalyst in the reduction of Cr(VI). J APPL ELECTROCHEM 2019. [DOI: 10.1007/s10800-019-01323-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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11
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Lüsi M, Erikson H, Merisalu M, Rähn M, Sammelselg V, Tammeveski K. Electrochemical reduction of oxygen in alkaline solution on Pd/C catalysts prepared by electrodeposition on various carbon nanomaterials. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2018.12.061] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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12
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Zhang G, Xu B, Chong H, Wei W, Wang C, Wang G. Effect of glyphosate on X-ray diffraction of copper films prepared by electrochemical deposition. RSC Adv 2019; 9:14016-14023. [PMID: 35519352 PMCID: PMC9064028 DOI: 10.1039/c9ra01385g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 04/23/2019] [Indexed: 11/21/2022] Open
Abstract
In the process of electrochemical deposition of metals, the additives can directly affect the final morphology of the metal. Using glyphosate as the additive, copper thin films were prepared by the electrochemical deposition method from a CuSO4 aqueous solution under a specific voltage. The copper thin films were grown on the surface of the indium tin oxide (ITO) film, which was used as the working electrode in a classical three-electrode cell. Glyphosate combined with the copper ion to form a complex, and hindered further reduction and crystallization of the copper ions. The results indicated that the peak intensities of the X-ray diffraction peaks decreased with the increase in the glyphosate concentrations, which can be used as a basis for quantitative detection. The method is simple and highly sensitive. Quantitative probing of glyphosate by combining electrochemical deposition and X-ray diffraction methods.![]()
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Affiliation(s)
- Gaomin Zhang
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Bin Xu
- Testing Center
- Yangzhou University
- Yangzhou 225009
- China
| | - Hui Chong
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
| | - Wenxian Wei
- Testing Center
- Yangzhou University
- Yangzhou 225009
- China
| | - Chengyin Wang
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
- Testing Center
| | - Guoxiu Wang
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- China
- Centre for Clean Energy Technology
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13
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Rezaei M, Haghshenas DF, Ghorbani M, Dolati A. Electrochemical Behavior of Nanostructured Fe-Pd Alloy During Electrodeposition on Different Substrates. J ELECTROCHEM SCI TE 2018. [DOI: 10.33961/jecst.2018.9.3.202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Mamme MH, Köhn C, Deconinck J, Ustarroz J. Numerical insights into the early stages of nanoscale electrodeposition: nanocluster surface diffusion and aggregative growth. NANOSCALE 2018; 10:7194-7209. [PMID: 29620775 DOI: 10.1039/c7nr08529j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Fundamental understanding of the early stages of electrodeposition at the nanoscale is key to address the challenges in a wide range of applications. Despite having been studied for decades, a comprehensive understanding of the whole process is still out of reach. In this work, we introduce a novel modelling approach that couples a finite element method (FEM) with a random walk algorithm, to study the early stages of nanocluster formation, aggregation and growth, during electrochemical deposition. This approach takes into account not only electrochemical kinetics and transport of active species, but also the surface diffusion and aggregation of adatoms and small nanoclusters. The simulation results reveal that the relative surface mobility of the nanoclusters compared to that of the adatoms plays a crucial role in the early growth stages. The number of clusters, their size and their size dispersion are influenced more significantly by nanocluster mobility than by the applied overpotential itself. Increasing the overpotential results in shorter induction times and leads to aggregation prevalence at shorter times. A higher mobility results in longer induction times, a delayed transition from nucleation to aggregation prevalence, and as a consequence, a larger surface coverage of smaller clusters with a smaller size dispersion. As a consequence, it is shown that a classical first-order nucleation kinetics equation cannot describe the evolution of the number of clusters with time, N(t), in potentiostatic electrodeposition. Instead, a more accurate representation of N(t) is provided. We show that an evaluation of N(t), which neglects the effect of nanocluster mobility and aggregation, can induce errors of several orders of magnitude in the determination of nucleation rate constants. These findings are extremely important towards evaluating the elementary electrodeposition processes, considering not only adatoms, but also nanoclusters as building blocks.
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Affiliation(s)
- Mesfin Haile Mamme
- Vrije Universiteit Brussel (VUB), Research Group Electrochemical and Surface Engineering (SURF), Pleinlaan 2, 1050 Brussels, Belgium.
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15
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Hasan M, Khunsin W, Mavrokefalos CK, Maier SA, Rohan JF, Foord JS. Facile Electrochemical Synthesis of Pd Nanoparticles with Enhanced Electrocatalytic Properties from Surfactant-Free Electrolyte. ChemElectroChem 2017. [DOI: 10.1002/celc.201701132] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Maksudul Hasan
- Department of Chemistry, Chemistry Research Laboratory; University of Oxford; Mansfield Road Oxford OX1 3TA England, UK
- Tyndall National Institute; University College Cork; Lee Maltings, Cork Ireland
| | - Worawut Khunsin
- Department of Physics; Imperial College London; London SW7 2AZ England, UK
| | - Christos K. Mavrokefalos
- Department of Chemistry, Chemistry Research Laboratory; University of Oxford; Mansfield Road Oxford OX1 3TA England, UK
| | - Stefan A. Maier
- Department of Physics; Imperial College London; London SW7 2AZ England, UK
| | - James F. Rohan
- Tyndall National Institute; University College Cork; Lee Maltings, Cork Ireland
| | - John S. Foord
- Department of Chemistry, Chemistry Research Laboratory; University of Oxford; Mansfield Road Oxford OX1 3TA England, UK
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16
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Mamme MH, Deconinck J, Ustarroz J. Transition between kinetic and diffusion control during the initial stages of electrochemical growth using numerical modelling. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.11.111] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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David IG, Popa DE, Buleandra M. Pencil Graphite Electrodes: A Versatile Tool in Electroanalysis. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2017; 2017:1905968. [PMID: 28255500 PMCID: PMC5307002 DOI: 10.1155/2017/1905968] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 12/19/2016] [Accepted: 01/04/2017] [Indexed: 05/05/2023]
Abstract
Due to their electrochemical and economical characteristics, pencil graphite electrodes (PGEs) gained in recent years a large applicability to the analysis of various types of inorganic and organic compounds from very different matrices. The electrode material of this type of working electrodes is constituted by the well-known and easy commercially available graphite pencil leads. Thus, PGEs are cheap and user-friendly and can be employed as disposable electrodes avoiding the time-consuming step of solid electrodes surface cleaning between measurements. When compared to other working electrodes PGEs present lower background currents, higher sensitivity, good reproducibility, and an adjustable electroactive surface area, permitting the analysis of low concentrations and small sample volumes without any deposition/preconcentration step. Therefore, this paper presents a detailed overview of the PGEs characteristics, designs and applications of bare, and electrochemically pretreated and chemically modified PGEs along with the corresponding performance characteristics like linear range and detection limit. Techniques used for bare or modified PGEs surface characterization are also reviewed.
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Affiliation(s)
- Iulia Gabriela David
- Department of Analytical Chemistry, Faculty of Chemistry, University of Bucharest, Panduri Av. 90–92, District 5, 050663 Bucharest, Romania
| | - Dana-Elena Popa
- Department of Analytical Chemistry, Faculty of Chemistry, University of Bucharest, Panduri Av. 90–92, District 5, 050663 Bucharest, Romania
| | - Mihaela Buleandra
- Department of Analytical Chemistry, Faculty of Chemistry, University of Bucharest, Panduri Av. 90–92, District 5, 050663 Bucharest, Romania
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18
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Kakhki RM. Recent developments on the modification of graphite electrodes with nanoparticles. RUSS J APPL CHEM+ 2016. [DOI: 10.1134/s10704272160030204] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Application of CdS quantum dots modified carbon paste electrode for monitoring the process of acetaminophen preparation. Anal Biochem 2016; 502:36-42. [DOI: 10.1016/j.ab.2016.02.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 02/22/2016] [Accepted: 02/23/2016] [Indexed: 11/19/2022]
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20
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Adsorptive stripping voltammetric determination of anticancer drug lomustine in biological fluids using in situ mercury film coated graphite pencil electrode. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2015.11.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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21
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Rasouli H, Tabaian SH, Rezaei M. Galvanic replacement of electrodeposited nickel by palladium and investigation of the electrocatalytic activity of synthesized Pd/(Ni) for hydrogen evolution and formic acid oxidation. RSC Adv 2016. [DOI: 10.1039/c5ra27219j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Highly active Pd/(Ni) catalysts were synthesized by well controlled galvanic replacement of electrodeposited nickel, towards hydrogen evolution and FA oxidation.
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Affiliation(s)
- Hassanali Rasouli
- Department of Mining and Metallurgical Engineering
- Amirkabir University of Technology (Tehran Polytechnic)
- Tehran
- Iran
| | - Seyed Hadi Tabaian
- Department of Mining and Metallurgical Engineering
- Amirkabir University of Technology (Tehran Polytechnic)
- Tehran
- Iran
| | - Milad Rezaei
- Department of Mining and Metallurgical Engineering
- Amirkabir University of Technology (Tehran Polytechnic)
- Tehran
- Iran
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22
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Electrochemical Synthesis of Pd Nano Particles on Pencil-Graphite and Application for Suzuki Coupling Reactions. Catal Letters 2015. [DOI: 10.1007/s10562-015-1571-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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23
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Akanda MR, Sohail M, Aziz MA, Kawde AN. Recent Advances in Nanomaterial-Modified Pencil Graphite Electrodes for Electroanalysis. ELECTROANAL 2015. [DOI: 10.1002/elan.201500374] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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24
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Shrestha S, Biddinger EJ. Palladium electrodeposition in 1-butyl-1-methylpyrrolidinium dicyanamide ionic liquid. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.05.164] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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25
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Kawde AN, Aziz M, Baig N, Temerk Y. A facile fabrication of platinum nanoparticle-modified graphite pencil electrode for highly sensitive detection of hydrogen peroxide. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.01.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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26
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Mendoza-Huizar LH, Garrido-Márquez D, Rios-Reyes CH, Rivera M, García-Sánchez E, Galán-Vidal C. A Kinetic and AFM Study of the Electrodeposition of Palladium Nanoclusters onto Highly Oriented Pyrolytic Graphite (HOPG). J CLUST SCI 2015. [DOI: 10.1007/s10876-014-0837-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Asnavandi M, Suryanto BHR, Zhao C. Controlled electrodeposition of nanostructured Pd thin films from protic ionic liquids for electrocatalytic oxygen reduction reactions. RSC Adv 2015. [DOI: 10.1039/c5ra13898a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nanostructured Pd thin films are prepared from protic ionic liquids via hydrogen-assisted electrodeposition for oxygen reduction reactions.
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Affiliation(s)
- Majid Asnavandi
- School of Chemistry
- The University of New South Wales
- Sydney
- Australia
| | | | - Chuan Zhao
- School of Chemistry
- The University of New South Wales
- Sydney
- Australia
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28
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The Role of Electrodeposited Pd Catalyst Loading on the Mechanisms of Formic Acid Electro-Oxidation. Electrocatalysis (N Y) 2014. [DOI: 10.1007/s12678-013-0181-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Uberman PM, Pérez LA, Martín SE, Lacconi GI. Electrochemical synthesis of palladium nanoparticles in PVP solutions and their catalytic activity in Suzuki and Heck reactions in aqueous medium. RSC Adv 2014. [DOI: 10.1039/c3ra47854h] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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30
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Mechanism for nucleation and growth of electrochemical deposition of palladium(II) on a platinum electrode in hydrochloric acid solution. Sci China Chem 2013. [DOI: 10.1007/s11426-013-5026-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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31
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Salomé S, Rego R, Querejeta A, Alcaide F, Oliveira MC. An electrochemical route to prepare Pd nanostructures on a gas diffusion substrate for a PEMFC. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.04.159] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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32
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Gold nanoparticle-modified graphite pencil electrode for the high-sensitivity detection of hydrazine. Talanta 2013; 115:214-21. [PMID: 24054582 DOI: 10.1016/j.talanta.2013.04.038] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 04/16/2013] [Accepted: 04/17/2013] [Indexed: 11/20/2022]
Abstract
A novel gold nanoparticle-modified graphite pencil electrode (AuNP-GPE) is prepared just by immersing a bare GPE in AuNP solution, followed by heating for 15 min. The bare and modified GPEs are characterized by FE-SEM imaging and cyclic voltammetry. The AuNP-GPEs showed excellent electrocatalytic activities with respect to hydrazine oxidation, with good reproducibility. To reduce the quantification and detection limits, and increase the hydrazine sensitivity, the pH and square wave voltammetry parameters are optimized. A square wave voltammetry study as a function of the hydrazine concentration showed that the AuNP-GPE detector's quantification limit was 100 nmol L(-1) hydrazine, much lower than the value obtained using amperometry (10 µmol L(-1)). The limits of detection (at 3σ) for hydrazine sensing at AuNP-GPEs using square wave voltammetry and amperometry were 42 nmol L(-1) and 3.07 µmol L(-1). Finally, the modified electrode was used to determine the hydrazine concentration in drinking water, and satisfactory results are obtained. This simple, rapid, low-cost method for fabricating a modified electrode is an attractive approach to the development of new sensors.
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33
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Electrochemical nucleation of palladium on graphene: A kinetic study with an emphasis on hydrogen co-reduction. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2012.09.092] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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34
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Rezaei M, Tabaian SH, Haghshenas DF. A kinetic description of Pd electrodeposition under mixed control of charge transfer and diffusion. J Electroanal Chem (Lausanne) 2012. [DOI: 10.1016/j.jelechem.2012.10.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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