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Pumford A, White RJ. Controlling the Collision Type and Frequency of Single Pt Nanoparticles at Chemically Modified Gold Electrodes. Anal Chem 2024; 96:4800-4808. [PMID: 38470344 DOI: 10.1021/acs.analchem.3c04668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Studying the electrochemical response of single nanoparticles at an electrode surface gives insight into the dynamic and stochastic processes that occur at the electrode interface. Herein, we investigated single platinum nanoparticle collision dynamics and type (elastic vs inelastic) at gold electrode surfaces modified with self-assembled monolayers (SAMs) of varying terminal chemistries. Collision events are measured via the faradaic current from catalytic reactions at the Pt surface. By changing the terminal, solution-facing group of a thiolate monolayer, we observed the effect of hydrophobicity at the solution-electrode interface on single-particle collisions by employing either a hydrophobic -CH3 terminal group (1-hexanethiol), a hydrophilic -OH terminal group (6-mercaptohexanol), or an equimolar mixture of the two. Changes in the terminal group lead to alterations in collision-induced current magnitude, collisional frequency, and the distinct shape of the collision event current transient. The effects of the terminal group of the SAM were probed by measuring quantitative differences in the events monitored through both the hydrogen evolution reaction (HER) and hydrazine oxidation. In both cases, a platinum nanoparticle (PtNP) favors adsorption to bare and hydrophilic surfaces but demonstrates elastic collision behavior when it collides with a hydrophobic surface. In the case of a mixed monolayer, distinct characteristics of hydrophobic and hydrophilic surfaces are observed. We report how single nanoparticle collisions can reveal nanoscale surface heterogeneity and can be used to manipulate the nature of single-particle interactions on an electrode surface by functionalized self-assembled monolayers.
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Affiliation(s)
- Audrey Pumford
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Ryan J White
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
- Department of Electrical Engineering and Computer Science, University of Cincinnati, Cincinnati, Ohio 45221, United States
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2
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Weiß LJK, Music E, Rinklin P, Banzet M, Mayer D, Wolfrum B. On-Chip Electrokinetic Micropumping for Nanoparticle Impact Electrochemistry. Anal Chem 2022; 94:11600-11609. [PMID: 35900877 DOI: 10.1021/acs.analchem.2c02017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Single-entity electrochemistry is a powerful technique to study the interactions of nanoparticles at the liquid-solid interface. In this work, we exploit Faradaic (background) processes in electrolytes of moderate ionic strength to evoke electrokinetic transport and study its influence on nanoparticle impacts. We implemented an electrode array comprising a macroscopic electrode that surrounds a set of 62 spatially distributed microelectrodes. This configuration allowed us to alter the global electrokinetic transport characteristics by adjusting the potential at the macroscopic electrode, while we concomitantly recorded silver nanoparticle impacts at the microscopic detection electrodes. By focusing on temporal changes of the impact rates, we were able to reveal alterations in the macroscopic particle transport. Our findings indicate a potential-dependent micropumping effect. The highest impact rates were obtained for strongly negative macroelectrode potentials and alkaline solutions, albeit also positive potentials lead to an increase in particle impacts. We explain this finding by reversal of the pumping direction. Variations in the electrolyte composition were shown to play a critical role as the macroelectrode processes can lead to depletion of ions, which influences both the particle oxidation and the reactions that drive the transport. Our study highlights that controlled on-chip micropumping is possible, yet its optimization is not straightforward. Nevertheless, the utilization of electro- and diffusiokinetic transport phenomena might be an appealing strategy to enhance the performance in future impact-based sensing applications.
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Affiliation(s)
- Lennart J K Weiß
- Neuroelectronics - Munich Institute of Biomedical Engineering, Department of Electrical Engineering, TUM School of Computation, Information and Technology, Technical University of Munich, Boltzmannstrasse 11, Garching 85748, Germany
| | - Emir Music
- Neuroelectronics - Munich Institute of Biomedical Engineering, Department of Electrical Engineering, TUM School of Computation, Information and Technology, Technical University of Munich, Boltzmannstrasse 11, Garching 85748, Germany
| | - Philipp Rinklin
- Neuroelectronics - Munich Institute of Biomedical Engineering, Department of Electrical Engineering, TUM School of Computation, Information and Technology, Technical University of Munich, Boltzmannstrasse 11, Garching 85748, Germany
| | - Marko Banzet
- Institute of Biological Information Processing, Bioelectronics (IBI-3), Forschungszentrum Jülich, Jülich 52425, Germany
| | - Dirk Mayer
- Institute of Biological Information Processing, Bioelectronics (IBI-3), Forschungszentrum Jülich, Jülich 52425, Germany
| | - Bernhard Wolfrum
- Neuroelectronics - Munich Institute of Biomedical Engineering, Department of Electrical Engineering, TUM School of Computation, Information and Technology, Technical University of Munich, Boltzmannstrasse 11, Garching 85748, Germany
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3
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Moazzenzade T, Walstra T, Yang X, Huskens J, Lemay SG. Ring Ultramicroelectrodes for Current-Blockade Particle-Impact Electrochemistry. Anal Chem 2022; 94:10168-10174. [PMID: 35792954 PMCID: PMC9310007 DOI: 10.1021/acs.analchem.2c01503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In current-blockade impact electrochemistry, insulating particles are detected amperometrically as they impinge upon a micro- or nanoelectrode via a decrease in the faradaic current caused by a redox mediator. A limit of the method is that analytes of a given size yield a broad distribution of response amplitudes due to the inhomogeneities of the mediator flux at the electrode surface. Here, we overcome this limitation by introducing microfabricated ring-shaped electrodes with a width that is significantly smaller than the size of the target particles. We show that the relative step size is somewhat larger and exhibits a narrower distribution than at a conventional ultramicroelectrode of equal diameter.
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Affiliation(s)
- Taghi Moazzenzade
- MESA+ Institute and Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Tieme Walstra
- MESA+ Institute and Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Xiaojun Yang
- MESA+ Institute and Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Jurriaan Huskens
- MESA+ Institute and Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Serge G Lemay
- MESA+ Institute and Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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4
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Ahmadinasab N, Stockmann TJ. Single entity electrochemical detection of as‐prepared metallic and dielectric nanoparticle stochastic impacts in a phosphonium ionic liquid. ChemElectroChem 2022. [DOI: 10.1002/celc.202200162] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nazanin Ahmadinasab
- Memorial University of Newfoundland Chemistry 1 Arctic Ave A1C 5S7 St. John's CANADA
| | - Talia Jane Stockmann
- Memorial University of Newfoundland Chemistry 1 Arctic Ave A1C 5S7 St. John's CANADA
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5
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Weiß LJK, Lubins G, Music E, Rinklin P, Banzet M, Peng H, Terkan K, Mayer D, Wolfrum B. Single-Impact Electrochemistry in Paper-Based Microfluidics. ACS Sens 2022; 7:884-892. [PMID: 35235291 DOI: 10.1021/acssensors.1c02703] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Microfluidic paper-based analytical devices (μPADs) have experienced an unprecedented story of success. In particular, as of today, most people have likely come into contact with one of their two most famous examples─the pregnancy or the SARS-CoV-2 antigen test. However, their sensing performance is constrained by the optical readout of nanoparticle agglomeration, which typically allows only qualitative measurements. In contrast, single-impact electrochemistry offers the possibility to quantify species concentrations beyond the pM range by resolving collisions of individual species on a microelectrode. Within this work, we investigate the integration of stochastic sensing into a μPAD design by combining a wax-patterned microchannel with a microelectrode array to detect silver nanoparticles (AgNPs) by their oxidative dissolution. In doing so, we demonstrate the possibility to resolve individual nanoparticle collisions in a reference-on-chip configuration. To simulate a lateral flow architecture, we flush previously dried AgNPs along a microchannel toward the electrode array, where we are able to record nanoparticle impacts. Consequently, single-impact electrochemistry poses a promising candidate to extend the limits of lateral flow-based sensors beyond current applications toward a fast and reliable detection of very dilute species on site.
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Affiliation(s)
- Lennart J. K. Weiß
- Neuroelectronics─Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Georg Lubins
- Neuroelectronics─Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Emir Music
- Neuroelectronics─Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Philipp Rinklin
- Neuroelectronics─Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Marko Banzet
- Institute of Biological Information Processing, Bioelectronics (IBI-3), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Hu Peng
- Neuroelectronics─Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Korkut Terkan
- Neuroelectronics─Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
| | - Dirk Mayer
- Institute of Biological Information Processing, Bioelectronics (IBI-3), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Bernhard Wolfrum
- Neuroelectronics─Munich Institute of Biomedical Engineering, Department of Electrical and Computer Engineering, Technical University of Munich, Boltzmannstrasse 11, 85748 Garching, Germany
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6
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Chung J, Hertler P, Plaxco KW, Sepunaru L. Catalytic Interruption Mitigates Edge Effects in the Characterization of Heterogeneous, Insulating Nanoparticles. J Am Chem Soc 2021; 143:18888-18898. [PMID: 34735140 DOI: 10.1021/jacs.1c04971] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Blocking electrochemistry, a subfield of nanochemistry, enables nondestructive, in situ measurement of the concentration, size, and size heterogeneity of highly dilute, nanometer-scale materials. This approach, in which the adsorptive impact of individual particles on a microelectrode prevents charge exchange with a freely diffusing electroactive redox mediator, has expanded the scope of electrochemistry to the study of redox-inert materials. A limitation, however, remains: inhomogeneous current fluxes associated with enhanced mass transfer occurring at the edges of planar microelectrodes confound the relationship between the size of the impacting particle and the signal it generates. These "edge effects" lead to the overestimation of size heterogeneity and, thus, poor sample characterization. In response, we demonstrate here the ability of catalytic current amplification (EC') to reduce this problem, an effect we term "electrocatalytic interruption". Specifically, we show that the increase in mass transport produced by a coupled chemical reaction significantly mitigates edge effects, returning estimated particle size distributions much closer to those observed using ex situ electron microscopy. In parallel, electrocatalytic interruption enhances the signal observed from individual particles, enabling the detection of particles significantly smaller than is possible via conventional blocking electrochemistry. Finite element simulations indicate that the rapid chemical kinetics created by this approach contributes to the amplification of the electronic signal to restore analytical precision and reliably detect and characterize the heterogeneity of nanoscale electro-inactive materials.
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Affiliation(s)
- Julia Chung
- Interdepartmental Program in Biomolecular Science and Engineering, University of California at Santa Barbara, Santa Barbara, California 93106, United States
| | - Phoebe Hertler
- Department of Chemistry and Biochemistry, University of California at Santa Barbara, Santa Barbara, California 93106, United States
| | - Kevin W Plaxco
- Interdepartmental Program in Biomolecular Science and Engineering, University of California at Santa Barbara, Santa Barbara, California 93106, United States.,Department of Chemistry and Biochemistry, University of California at Santa Barbara, Santa Barbara, California 93106, United States
| | - Lior Sepunaru
- Department of Chemistry and Biochemistry, University of California at Santa Barbara, Santa Barbara, California 93106, United States
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7
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Pendergast AD, Renault C, Dick JE. Correlated Optical-Electrochemical Measurements Reveal Bidirectional Current Steps for Graphene Nanoplatelet Collisions at Ultramicroelectrodes. Anal Chem 2021; 93:2898-2906. [PMID: 33491447 DOI: 10.1021/acs.analchem.0c04409] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Single-entity electrochemistry has emerged as a powerful tool to study the adsorption behavior of single nanoscale entities one-at-a-time on an ultramicroelectrode surface. Classical single-entity collision studies have focused on the behavior of spherical nanoparticles or entities where the orientation of the colliding entity does not impact the electrochemical response. Here, we report a detailed study of the collision of asymmetric single graphene nanoplatelets onto ultramicroelectrodes. The collision of conductive graphene nanoplatelets on biased ultramicroelectrode surfaces can be observed in an amperometric i-t trace, revealing a variety of current transients (both positive and negative steps). To elucidate the dynamics of nanoplatelet adsorption processes and probe response heterogeneity, we correlated the collision events with optical microscopy. We show that positive steps are due to nanoplatelets coming into contact with the ultramicroelectrode, making an electrical connection, and adsorbing partly on the glass surrounding the ultramicroelectrode. Negative steps occur when nanoplatelets adsorb onto the glass without an electrical connection, effectively blocking flux of ferrocenemethanol to the ultramicroelectrode surface. These measurements allow rigorous quantification of current transients and detailed insights into the adsorption dynamics of asymmetric objects at the nanoscale.
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Affiliation(s)
- Andrew D Pendergast
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Christophe Renault
- Physique de la Matière Condensée, CNRS, Ecole Polytechnique, 91128 Palaiseau, France
| | - Jeffrey E Dick
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States.,Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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8
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9
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Dolinska J, Holdynski M, Ambroziak R, Modrzejewska-Sikorska A, Milczarek G, Pisarek M, Opallo M. The medium effect on electrodissolution of adsorbed or suspended Ag nanoparticles. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136406] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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10
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Noël JM, Miranda Vieira M, Brasiliense V, Lemineur JF, Combellas C, Kanoufi F. Effect of the driving force on nanoparticles growth and shape: an opto-electrochemical study. NANOSCALE 2020; 12:3227-3235. [PMID: 31967631 DOI: 10.1039/c9nr09419a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Most protocols developed to synthesize nanoparticles (NPs) and to control their shape are inspired from nucleation and growth theories. However, to rationalize the mechanisms of the shape-selective synthesis of NPs, experimental strategies allowing to probe in situ the growth of NPs are needed. Herein, metal Au or Ag nanoparticles (NPs) are produced by reaction of a metallic ion precursor with a reversible redox reducer. The process is explored by an oxidative electrosynthesis strategy using a sacrificial Au or Ag ultramicroelectrode to both trigger the metallic ion generation and control the local concentrations of the different reactants. The effect of the driving force for the metallic ion reduction over metal NP growth dynamics is inspected in situ and in real time at the single NP level by high-resolution optical microscopy from the tracking of the Brownian trajectories of the growing NPs in solution. The NP reductive growth/oxidative etching thermodynamics, and consequently the NP shape, are shown to be controlled electrochemically by the reversible redox couple, while the intervention of an Au(i) intermediate ion is suggested to account for the formation of gold nanocubes.
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Affiliation(s)
- Jean-Marc Noël
- Université de Paris, ITODYS, CNRS UMR 7086, 15 rue J.A. de Baïf, F-75013 Paris, France.
| | | | - Vitor Brasiliense
- Université de Paris, ITODYS, CNRS UMR 7086, 15 rue J.A. de Baïf, F-75013 Paris, France.
| | | | - Catherine Combellas
- Université de Paris, ITODYS, CNRS UMR 7086, 15 rue J.A. de Baïf, F-75013 Paris, France.
| | - Frédéric Kanoufi
- Université de Paris, ITODYS, CNRS UMR 7086, 15 rue J.A. de Baïf, F-75013 Paris, France.
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11
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Sundar S, Kim KJ, Kwon SJ. Observation of Single Nanoparticle Collisions with Green Synthesized Pt, Au, and Ag Nanoparticles Using Electrocatalytic Signal Amplification Method. NANOMATERIALS 2019; 9:nano9121695. [PMID: 31783669 PMCID: PMC6956323 DOI: 10.3390/nano9121695] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 11/18/2019] [Accepted: 11/19/2019] [Indexed: 12/31/2022]
Abstract
This work describes the tailored design, green synthesis and characterization of noble metal (Pt, Ag and Au) nanoparticles (NPs) using Sapinduss Mukkorossi fruit extract (SMFE) and its signal NP collision signal response, based on the principle of the electrocatatlytic amplication (EA) method. Here, the SMFE can act as both the reducing and the capping agent for the fabrication of noble nanometals. The SMFE-capped NPs was available for the observation of a single NP collision signal. Two general types of current response were observed: a staircase current response for the Pt or Au NPs, and a blip/spike current response for Ag NPs. These results demonstrated that the eco-friendly synthesized SMFE-capped NPs maintained their electrocatalytic activity, therefore they can be used for the single NP experiments and place an arena for future biosensing applications.
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12
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Lee S, Muya JT, Chung H, Chang J. Viologen-Bromide Dual-Redox Ionic Solid Complexes: Understanding Their Electrochemical Formation and Proton-Accompanied Redox Chemistry. ACS APPLIED MATERIALS & INTERFACES 2019; 11:43659-43670. [PMID: 31618569 DOI: 10.1021/acsami.9b13985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The inhibition of self-discharge in a redox-enhanced electrochemical capacitor (Redox-EC) is crucial for excellent energy retention. Heptyl viologen dibromide (HVBr2) was chosen as a strong candidate of a dual-redox species in Redox-EC due to its solid complexations during the charging process, at which HV2+ is electrochemically reduced to HV+• and form a solid complex, [HV+•·Br-], on an anode while Br- is electro-oxidized to Br3- and renders [HV2+·2Br3-] on a cathode. The solid complexes could not transfer across the separator, resulting in significant diminution of the self-discharge. In this Article, we present detailed electrochemical studies of formation of [HV2+·2Br3-] and [HV+•·Br-], their redox features, and galvanic exchange reactions between the two types of dual-redox ionic solids on a Pt ultra-microelectrode (UME) in neutral (0.33 M Na2SO4) and acidic (1 M H2SO4) solutions. Most importantly, through voltammetric and particle-impact electrochemical analyses, we found that the redox and galvanic exchange reactions of the two dual-redox ionic solid complexes involve H+ transfer, which is the key process to limit the overall kinetics of the electrochemical reactions. We also rationalize the proton-accompanied galvanic exchange reaction based on computational simulation.
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Affiliation(s)
- Semi Lee
- Department of Chemistry and Research Institute for Natural Science , Hanyang University , 222 Wangsimni-ro , Seongdong-gu , Seoul 04763 , Republic of Korea
| | - Jules Tshishimbi Muya
- Department of Chemistry and Research Institute for Natural Science , Hanyang University , 222 Wangsimni-ro , Seongdong-gu , Seoul 04763 , Republic of Korea
| | - Hoeil Chung
- Department of Chemistry and Research Institute for Natural Science , Hanyang University , 222 Wangsimni-ro , Seongdong-gu , Seoul 04763 , Republic of Korea
| | - Jinho Chang
- Department of Chemistry and Research Institute for Natural Science , Hanyang University , 222 Wangsimni-ro , Seongdong-gu , Seoul 04763 , Republic of Korea
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13
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Chen W, Wang H, Tang H, Yang C, Li Y. Unique Voltammetry of Silver Nanoparticles: From Single Particle to Aggregates. Anal Chem 2019; 91:14188-14191. [PMID: 31638365 DOI: 10.1021/acs.analchem.9b03372] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Understanding the electrooxidation process of metal nanoparticles (NPs) is very important because they have showed wide applications in electrocatalysis, sensing, and nanoelectronics. In this letter, we designed a strategy to investigate the anodic stripping voltammetry (ASV) of silver oxidation at single NP level and aggregation state by using gold single nanoelectrodes (SNEs) and ultramicroelectrodes. Results showed that the ASV peak potential and shape were significantly affected by the diameter and aggregation degree of the Ag NPs: symmetrical-peak shape, two-peak shape, and asymmetrical-peak shape appeared when Ag NPs changed from the single particle state to the large-aggregation state, and size-dependent ASVs for Ag NPs oxidation were also observed. These findings can help us deeply understand the metal NPs oxidation process and will benefit the related applications.
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Affiliation(s)
- Wei Chen
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science , Anhui Normal University , Wuhu 241000 , P.R. China
| | - Hao Wang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science , Anhui Normal University , Wuhu 241000 , P.R. China
| | - Haoran Tang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science , Anhui Normal University , Wuhu 241000 , P.R. China
| | - Cheng Yang
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science , Anhui Normal University , Wuhu 241000 , P.R. China
| | - Yongxin Li
- Anhui Key Laboratory of Chemo/Biosensing, College of Chemistry and Materials Science , Anhui Normal University , Wuhu 241000 , P.R. China
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14
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Xu W, Zou G, Hou H, Ji X. Single Particle Electrochemistry of Collision. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1804908. [PMID: 30740883 DOI: 10.1002/smll.201804908] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 12/21/2018] [Indexed: 05/23/2023]
Abstract
A novel electrochemistry method using stochastic collision of particles at microelectrode to study their performance in single-particle scale has obtained remarkable development in recent years. This convenient and swift analytical method, which can be called "nanoimpact," is focused on the electrochemical process of the single particle rather than in complex ensemble systems. Many researchers have applied this nanoimpact method to investigate various kinds of materials in many research fields, including sensing, electrochemical catalysis, and energy storage. However, the ways how they utilize the method are quite different and the key points can be classified into four sorts: sensing particles at ultralow concentration, theory optimization, kinetics of mediated catalytic reaction, and redox electrochemistry of the particles. This review gives a brief overview of the development of the nanoimpact method from the four aspects in a new perspective.
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Affiliation(s)
- Wei Xu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Guoqiang Zou
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Hongshuai Hou
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Xiaobo Ji
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
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15
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Han C, Hao R, Fan Y, Edwards MA, Gao H, Zhang B. Observing Transient Bipolar Electrochemical Coupling on Single Nanoparticles Translocating through a Nanopore. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:7180-7190. [PMID: 31074628 DOI: 10.1021/acs.langmuir.9b01255] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We report the observation of transient bipolar electrochemical coupling on freely moving 40 nm silver nanoparticles. The use of an asymmetric nanoelectrochemical environment at the nanopore orifice, for example, an acid inside the pipette and halide ions in the bulk, enabled us to observe unusually large current blockages of single Ag nanoparticles. We attribute these current blockages to the formation of H2 nanobubbles on the surface of Ag nanoparticles due to the coupled faradaic reactions, in which the reduction of protons and water is coupled to the oxidation of Ag and water under potentials higher than 1 V. The appearance of large current blockages was strongly dependent on the applied voltage and the choice of anions in the bulk solution. The correlation between large current blockages with the oxidation of Ag nanoparticles and their nanopore translocation was further supported by simultaneous fluorescence and electric recordings. This study demonstrates that transient bipolar electrochemistry can take place on small metal nanoparticles below 50 nm when they pass through nanopores where the electric field is highly localized. The use of a nanopore and the resistive-pulse sensing method to study transient bipolar electrochemistry of nanoparticles may be extended to future studies in ultrafast electrochemistry, nanocatalyst screening, and gas nucleation on nanoparticles.
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Affiliation(s)
- Chu Han
- Department of Chemistry , University of Washington , Seattle , Washington 98195 , United States
| | - Rui Hao
- Department of Chemistry , University of Washington , Seattle , Washington 98195 , United States
| | - Yunshan Fan
- Department of Chemistry , University of Washington , Seattle , Washington 98195 , United States
| | - Martin A Edwards
- Department of Chemistry , University of Utah , Salt Lake City , Utah 84112 , United States
| | - Hongfang Gao
- Department of Chemistry , University of Washington , Seattle , Washington 98195 , United States
| | - Bo Zhang
- Department of Chemistry , University of Washington , Seattle , Washington 98195 , United States
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16
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Optical Nanoimpacts of Dielectric and Metallic Nanoparticles on Gold Surface by Reflectance Microscopy: Adsorption or Bouncing? JOURNAL OF ANALYSIS AND TESTING 2019. [DOI: 10.1007/s41664-019-00099-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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17
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Stockmann TJ, Lemineur JF, Liu H, Cometto C, Robert M, Combellas C, Kanoufi F. Single LiBH4 nanocrystal stochastic impacts at a micro water|ionic liquid interface. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.12.105] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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18
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Defnet PA, Han C, Zhang B. Temporally-Resolved Ultrafast Hydrogen Adsorption and Evolution on Single Platinum Nanoparticles. Anal Chem 2019; 91:4023-4030. [DOI: 10.1021/acs.analchem.8b05463] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Peter A. Defnet
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Chu Han
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Bo Zhang
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
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19
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Zhou M, Wang D, Mirkin MV. Catalytic Amplification of Au
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Nanocluster Collisions by Hydrogen Evolution Reaction. ChemElectroChem 2018. [DOI: 10.1002/celc.201800703] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Min Zhou
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY11367 USA
- Department of Chemistry The University of Texas at Austin Austin TX 78712 USA
| | - Dengchao Wang
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY11367 USA
| | - Michael V. Mirkin
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY11367 USA
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20
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Brasiliense V, Noël J, Wonner K, Tschulik K, Combellas C, Kanoufi F. Single Nanoparticle Growth from Nanoparticle Tracking Analysis: From Monte Carlo Simulations to Nanoparticle Electrogeneration. ChemElectroChem 2018. [DOI: 10.1002/celc.201800742] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Vitor Brasiliense
- Université Sorbonne Paris Cité, Université Paris DiderotITODYS, CNRS UMR 7086 15 rue Jean-Antoine de Baïf F-75013 Paris France
- Northwestern University Department of Chemistry 2145 Sheridan Rd. 60208 Evanston IL USA
| | - Jean‐Marc Noël
- Université Sorbonne Paris Cité, Université Paris DiderotITODYS, CNRS UMR 7086 15 rue Jean-Antoine de Baïf F-75013 Paris France
| | - Kevin Wonner
- Ruhr-University BochumChair of Analytical Chemistry II and Centre for Electrochemical Sciences (CES), ZEMOS Bochum 44801 Germany
| | - Kristina Tschulik
- Ruhr-University BochumChair of Analytical Chemistry II and Centre for Electrochemical Sciences (CES), ZEMOS Bochum 44801 Germany
| | - Catherine Combellas
- Université Sorbonne Paris Cité, Université Paris DiderotITODYS, CNRS UMR 7086 15 rue Jean-Antoine de Baïf F-75013 Paris France
| | - Frédéric Kanoufi
- Université Sorbonne Paris Cité, Université Paris DiderotITODYS, CNRS UMR 7086 15 rue Jean-Antoine de Baïf F-75013 Paris France
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21
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Robinson DA, Edwards MA, Ren H, White HS. Effects of Instrumental Filters on Electrochemical Measurement of Single‐Nanoparticle Collision Dynamics. ChemElectroChem 2018. [DOI: 10.1002/celc.201800696] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Donald A. Robinson
- Department of Chemistry University of Utah, Salt Lake City Utah 84112 United States
| | - Martin A. Edwards
- Department of Chemistry University of Utah, Salt Lake City Utah 84112 United States
| | - Hang Ren
- Department of Chemistry University of Utah, Salt Lake City Utah 84112 United States
| | - Henry S. White
- Department of Chemistry University of Utah, Salt Lake City Utah 84112 United States
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22
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Glasscott MW, Dick JE. Direct Electrochemical Observation of Single Platinum Cluster Electrocatalysis on Ultramicroelectrodes. Anal Chem 2018; 90:7804-7808. [DOI: 10.1021/acs.analchem.8b02219] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Matthew W. Glasscott
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Jeffrey E. Dick
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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23
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Xiang ZP, Deng HQ, Peljo P, Fu ZY, Wang SL, Mandler D, Sun GQ, Liang ZX. Electrochemical Dynamics of a Single Platinum Nanoparticle Collision Event for the Hydrogen Evolution Reaction. Angew Chem Int Ed Engl 2018; 57:3464-3468. [DOI: 10.1002/anie.201712454] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 01/13/2018] [Indexed: 01/31/2023]
Affiliation(s)
- Zhi-peng Xiang
- Key Laboratory on Fuel Cell Technology of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510641 P. R. China
| | - Hai-qiang Deng
- Institute of Chemistry; The Hebrew University of Jerusalem; Jerusalem 9190401 Israel
| | - Pekka Peljo
- Laboratoire d'Electrochimie Physique et Analytique; École Polytechnique Fédérale de Lausanne (EPFL Valais Wallis); Rue de I'Industrie, 17 1951 Sion Switzerland
| | - Zhi-yong Fu
- Key Laboratory on Fuel Cell Technology of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510641 P. R. China
| | - Su-li Wang
- Fuel Cell & Battery Division; Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 P. R. China
| | - Daniel Mandler
- Institute of Chemistry; The Hebrew University of Jerusalem; Jerusalem 9190401 Israel
| | - Gong-quan Sun
- Fuel Cell & Battery Division; Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 P. R. China
| | - Zhen-xing Liang
- Key Laboratory on Fuel Cell Technology of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510641 P. R. China
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24
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Xiang ZP, Deng HQ, Peljo P, Fu ZY, Wang SL, Mandler D, Sun GQ, Liang ZX. Electrochemical Dynamics of a Single Platinum Nanoparticle Collision Event for the Hydrogen Evolution Reaction. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712454] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhi-peng Xiang
- Key Laboratory on Fuel Cell Technology of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510641 P. R. China
| | - Hai-qiang Deng
- Institute of Chemistry; The Hebrew University of Jerusalem; Jerusalem 9190401 Israel
| | - Pekka Peljo
- Laboratoire d'Electrochimie Physique et Analytique; École Polytechnique Fédérale de Lausanne (EPFL Valais Wallis); Rue de I'Industrie, 17 1951 Sion Switzerland
| | - Zhi-yong Fu
- Key Laboratory on Fuel Cell Technology of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510641 P. R. China
| | - Su-li Wang
- Fuel Cell & Battery Division; Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 P. R. China
| | - Daniel Mandler
- Institute of Chemistry; The Hebrew University of Jerusalem; Jerusalem 9190401 Israel
| | - Gong-quan Sun
- Fuel Cell & Battery Division; Dalian National Laboratory for Clean Energy; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 P. R. China
| | - Zhen-xing Liang
- Key Laboratory on Fuel Cell Technology of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510641 P. R. China
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25
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Bae JH, Brocenschi RF, Kisslinger K, Xin HL, Mirkin MV. Dissolution of Pt during Oxygen Reduction Reaction Produces Pt Nanoparticles. Anal Chem 2017; 89:12618-12621. [PMID: 29139288 DOI: 10.1021/acs.analchem.7b03121] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The loss of Pt during the oxygen reduction reaction (ORR) affects the performance and economic viability of fuel cells and sensors. Our group previously observed the dissolution of Pt nanoelectrodes at moderately negative potentials during the ORR. Here we report a more detailed study of this process and identify its product. The nanoporous Pt surface formed during the ORR was visualized by AFM and high-resolution SEM, which also showed ∼5 nm sized Pt particles on the glass surface surrounding the electrode. The release of these nanoparticles into the solution was confirmed by monitoring their catalytically amplified collisions with a Hg-coated microelectrode used as the tip in the scanning electrochemical microscope (SECM).
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Affiliation(s)
- Je Hyun Bae
- Department of Chemistry and Biochemistry, Queens College-CUNY , Flushing, New York 11367, United States
| | - Ricardo F Brocenschi
- Department of Chemistry and Biochemistry, Queens College-CUNY , Flushing, New York 11367, United States
| | - Kim Kisslinger
- Center for Functional Nanomaterials, Brookhaven National Laboratory , Upton, New York 11973, United States
| | - Huolin L Xin
- Center for Functional Nanomaterials, Brookhaven National Laboratory , Upton, New York 11973, United States
| | - Michael V Mirkin
- Department of Chemistry and Biochemistry, Queens College-CUNY , Flushing, New York 11367, United States.,The Graduate Center, CUNY , New York, New York 10016, United States
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26
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Robinson DA, Liu Y, Edwards MA, Vitti NJ, Oja SM, Zhang B, White HS. Collision Dynamics during the Electrooxidation of Individual Silver Nanoparticles. J Am Chem Soc 2017; 139:16923-16931. [PMID: 29083174 DOI: 10.1021/jacs.7b09842] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Recent high-bandwidth recordings of the oxidation and dissolution of 35 nm radius Ag nanoparticles at a Au microelectrode show that these nanoparticles undergo multiple collisions with the electrode, generating multiple electrochemical current peaks. In the time interval between observed current peaks, the nanoparticles diffuse in the solution near the electrolyte/electrode interface. Here, we demonstrate that simulations of random nanoparticle motion, coupled with electrochemical kinetic parameters, quantitatively reproduce the experimentally observed multicurrent peak behavior. Simulations of particle diffusion are based on the nanoparticle-mass-based thermal nanoparticle velocity and the Einstein diffusion relations, while the electron-transfer rate is informed by the literature exchange current density for the Ag/Ag+ redox system. Simulations indicate that tens to thousands of particle-electrode collisions, each lasting ∼6 ns or less (currently unobservable on accessible experimental time scales), contribute to each experimentally observed current peak. The simulation provides a means to estimate the instantaneous current density during a collision (∼500-1000 A/cm2), from which we estimate a rate constant between ∼5 and 10 cm/s for the electron transfer between Ag nanoparticles and the Au electrode. This extracted rate constant is approximately equal to the thermal collisional velocity of the Ag nanoparticle (4.6 cm/s), the latter defining the theoretical upper limit of the electron-transfer rate constant. Our results suggest that only ∼1% of the surface atoms on the Ag nanoparticles are oxidized per instantaneous collision. The combined simulated and experimental results underscore the roles of Brownian motion and collision frequency in the interpretation of heterogeneous electron-transfer reactions involving nanoparticles.
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Affiliation(s)
- Donald A Robinson
- Department of Chemistry, University of Utah , Salt Lake City, Utah 84112, United States
| | - Yuwen Liu
- Department of Chemistry, University of Utah , Salt Lake City, Utah 84112, United States.,College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, 430072, China
| | - Martin A Edwards
- Department of Chemistry, University of Utah , Salt Lake City, Utah 84112, United States
| | - Nicholas J Vitti
- Department of Chemistry, University of Utah , Salt Lake City, Utah 84112, United States
| | - Stephen M Oja
- Department of Chemistry, University of Washington , Seattle, Washington 98195-1700, United States
| | - Bo Zhang
- Department of Chemistry, University of Washington , Seattle, Washington 98195-1700, United States
| | - Henry S White
- Department of Chemistry, University of Utah , Salt Lake City, Utah 84112, United States
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27
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Stockmann TJ, Angelé L, Brasiliense V, Combellas C, Kanoufi F. Platinum Nanoparticle Impacts at a Liquid|Liquid Interface. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707589] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- T. Jane Stockmann
- Sorbonne Paris Cité; Paris Diderot University, Interfaces, Traitements, Organisation et Dynamique des Systèmes, CNRS-UMR 7086; 15 rue J. A. Baif 75013 Paris France
| | - Léo Angelé
- Sorbonne Paris Cité; Paris Diderot University, Interfaces, Traitements, Organisation et Dynamique des Systèmes, CNRS-UMR 7086; 15 rue J. A. Baif 75013 Paris France
| | - Vitor Brasiliense
- Sorbonne Paris Cité; Paris Diderot University, Interfaces, Traitements, Organisation et Dynamique des Systèmes, CNRS-UMR 7086; 15 rue J. A. Baif 75013 Paris France
| | - Catherine Combellas
- Sorbonne Paris Cité; Paris Diderot University, Interfaces, Traitements, Organisation et Dynamique des Systèmes, CNRS-UMR 7086; 15 rue J. A. Baif 75013 Paris France
| | - Frédéric Kanoufi
- Sorbonne Paris Cité; Paris Diderot University, Interfaces, Traitements, Organisation et Dynamique des Systèmes, CNRS-UMR 7086; 15 rue J. A. Baif 75013 Paris France
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28
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Stockmann TJ, Angelé L, Brasiliense V, Combellas C, Kanoufi F. Platinum Nanoparticle Impacts at a Liquid|Liquid Interface. Angew Chem Int Ed Engl 2017; 56:13493-13497. [DOI: 10.1002/anie.201707589] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 08/22/2017] [Indexed: 12/19/2022]
Affiliation(s)
- T. Jane Stockmann
- Sorbonne Paris Cité; Paris Diderot University, Interfaces, Traitements, Organisation et Dynamique des Systèmes, CNRS-UMR 7086; 15 rue J. A. Baif 75013 Paris France
| | - Léo Angelé
- Sorbonne Paris Cité; Paris Diderot University, Interfaces, Traitements, Organisation et Dynamique des Systèmes, CNRS-UMR 7086; 15 rue J. A. Baif 75013 Paris France
| | - Vitor Brasiliense
- Sorbonne Paris Cité; Paris Diderot University, Interfaces, Traitements, Organisation et Dynamique des Systèmes, CNRS-UMR 7086; 15 rue J. A. Baif 75013 Paris France
| | - Catherine Combellas
- Sorbonne Paris Cité; Paris Diderot University, Interfaces, Traitements, Organisation et Dynamique des Systèmes, CNRS-UMR 7086; 15 rue J. A. Baif 75013 Paris France
| | - Frédéric Kanoufi
- Sorbonne Paris Cité; Paris Diderot University, Interfaces, Traitements, Organisation et Dynamique des Systèmes, CNRS-UMR 7086; 15 rue J. A. Baif 75013 Paris France
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29
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Mun SK, Lee S, Kim DY, Kwon SJ. Various Current Responses of Single Silver Nanoparticle Collisions on a Gold Ultramicroelectrode Depending on the Collision Conditions. Chem Asian J 2017; 12:2434-2440. [PMID: 28662286 DOI: 10.1002/asia.201700770] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 06/21/2017] [Indexed: 12/24/2022]
Abstract
Collisions of silver nanoparticles (NPs) with a more electrocatalytic gold or platinum ultramicroelectrode (UME) surface have been observed by using an electrochemical method. Depending on the applied potential to the UME, the current response to the collision of Ag NPs on the UME resulted in various shape changes. A staircase decrease, a blip decrease, and a blip increase of the hydrazine oxidation current were obtained at an applied potential of 0.33, 0.80, and 1.3 V, respectively. Different collision behaviors of Ag NPs on the UME surface were suggested for each shape of current response. Ag NP attachment, which hindered the diffusion flux to the UME, caused a staircase decrease of the electrocatalytic current. Instantaneous blocking of the hydrazine oxidation by Ag NP collision and, following recovery of the current by means of oxidation of Ag NP, caused a blip decrease of the electrocatalytic current. The formation of a higher oxidation state of Ag on the Ag NP and its electrocatalytic hydrazine oxidation resulted in a blip increase of the electrocatalytic current. The analysis of the current response of a single NP collision experiment can be a useful tool to understand the various behaviors of NPs on the electrode surface.
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Affiliation(s)
- Seon Kyu Mun
- Department of Chemistry, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 143-701, Korea
| | - Sangmin Lee
- Department of Chemistry, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 143-701, Korea
| | - Dong Young Kim
- Department of Chemistry, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 143-701, Korea
| | - Seong Jung Kwon
- Department of Chemistry, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 143-701, Korea
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30
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Allen SL, Sharma JN, Zamborini FP. Aggregation-Dependent Oxidation of Metal Nanoparticles. J Am Chem Soc 2017; 139:12895-12898. [DOI: 10.1021/jacs.7b05957] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Stacy L. Allen
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Jay N. Sharma
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Francis P. Zamborini
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
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31
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Bonezzi J, Luitel T, Boika A. Electrokinetic Manipulation of Silver and Platinum Nanoparticles and Their Stochastic Electrochemical Detection. Anal Chem 2017; 89:8614-8619. [DOI: 10.1021/acs.analchem.7b02807] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Jason Bonezzi
- Department of Chemistry, The University of Akron, 190 East Buchtel Common, Akron, Ohio 44325, United States
| | - Tulashi Luitel
- Department of Chemistry, The University of Akron, 190 East Buchtel Common, Akron, Ohio 44325, United States
| | - Aliaksei Boika
- Department of Chemistry, The University of Akron, 190 East Buchtel Common, Akron, Ohio 44325, United States
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32
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Ortiz-Ledón CA, Zoski CG. Pt Nanoparticle Collisions Detected by Electrocatalytic Amplification and Atomic Force Microscopy Imaging: Nanoparticle Collision Frequency, Adsorption, and Random Distribution at an Ultramicroelectrode Surface. Anal Chem 2017; 89:6424-6431. [DOI: 10.1021/acs.analchem.7b00188] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- César A. Ortiz-Ledón
- Department of Chemistry and
Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003, United States
| | - Cynthia G. Zoski
- Department of Chemistry and
Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003, United States
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33
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Castañeda AD, Brenes NJ, Kondajji A, Crooks RM. Detection of microRNA by Electrocatalytic Amplification: A General Approach for Single-Particle Biosensing. J Am Chem Soc 2017; 139:7657-7664. [DOI: 10.1021/jacs.7b03648] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Alma D. Castañeda
- Department of Chemistry and
Center for Electrochemistry, The University of Texas at Austin, 105 E. 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
| | - Nicholas J. Brenes
- Department of Chemistry and
Center for Electrochemistry, The University of Texas at Austin, 105 E. 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
| | - Aditya Kondajji
- Department of Chemistry and
Center for Electrochemistry, The University of Texas at Austin, 105 E. 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
| | - Richard M. Crooks
- Department of Chemistry and
Center for Electrochemistry, The University of Texas at Austin, 105 E. 24th Street, Stop A5300, Austin, Texas 78712-1224, United States
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34
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Bonezzi J, Boika A. Deciphering the Magnitude of Current Steps in Electrochemical Blocking Collision Experiments and Its Implications. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.03.090] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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36
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Abstract
Metal nanoparticles are key electrode materials in a variety of electrochemical applications including basic electron-transfer study, electrochemical sensing, and electrochemical surface enhanced Raman spectroscopy (SERS). Metal nanoparticles have also been extensively applied to electrocatalytic processes in recent years due to their high catalytic activity and large surface areas. Because the catalytic activity of metal nanoparticle is often highly dependent on their size, shape, surface ligands, and so forth, methods for examining and better understanding the correlation between particle structure and function are of great utility in the development of more efficient catalytic systems. Despite considerable progress in this field, the understanding of the structure-activity relationships remains challenging in nanoparticle-based electrochemistry and electrocatalysis due to limitations associated with traditional ensemble measurements. One of the major issues is the ensemble averaging of the electrocatalytic response which occurs over a very large number of nanoparticles of various sizes and shapes. Additionally, the electrochemical response can also be greatly affected by properties of the ensemble itself, such as the particle spacing. The ability to directly measure kinetics of electrochemical reactions at structurally well-characterized single nanoparticles opens up new possibilities in many important areas including nanoscale electrochemistry, electrochemical sensing, and nanoparticle electrocatalysis. When a macroscopic electrode is placed in a solution containing redox molecules and metal nanoparticles, random collision and adsorption of nanoparticles occurs at the electrode surface in addition to redox reactions when a suitable potential is present on the electrode. In a special case where particles are catalytically more active than the substrate, the faradaic signals can be greatly amplified on particle surfaces and a steady shift in the baseline current would be expected due to many particles adsorbing on the electrode. Single particle events can be temporally resolved when an ultramicroelectrode (UME) is used as the recording electrode. The use of an UME not only reduces the collision frequency, but also greatly decreases baseline noise, thereby resulting in clear resolution of single collision events. Single particle collision has quickly grown into a popular electroanalytical technique in recent years. Alternatively, one can use nanoelectrodes to immobilize single nanoparticles so that they can be individually studied in electrochemistry and electrocatalysis. Nanoparticle immobilization also allows one to obtain detailed structural information on the same particles and offers enormous potential for developing more comprehensive understanding of the structure-function relationship in nanoparticle-based electrocatalysts. This Account summarizes recent electrochemical experiments of single metal nanoparticles which have been performed by our group using both of these schemes.
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Affiliation(s)
- Todd J. Anderson
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Bo Zhang
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
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37
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Castañeda AD, Robinson DA, Stevenson KJ, Crooks RM. Electrocatalytic amplification of DNA-modified nanoparticle collisions via enzymatic digestion. Chem Sci 2016; 7:6450-6457. [PMID: 28451102 PMCID: PMC5356041 DOI: 10.1039/c6sc02165d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 06/22/2016] [Indexed: 01/04/2023] Open
Abstract
We report a new and general approach that will be useful for adapting the method of electrocatalytic amplification (ECA) to biosensing applications. In ECA, individual collisions of catalytic nanoparticles with a noncatalytic electrode surface lead to bursts of current. In the work described here, the current arises from catalytic electrooxidation of N2H4 at the surface of platinum nanoparticles (PtNPs). The problem with using ECA for biosensing applications heretofore, is that it is necessary to immobilize a receptor, such as DNA (as in the case here) or an antibody on the PtNP surface. This inactivates the colliding NP, however, and leads to very small collision signatures. In the present article, we show that single-stranded DNA (ssDNA) present on the PtNP surface can be detected by selectively removing a fraction of the ssDNA using the enzyme Exonuclease I (Exo I). About half of the current associated with collisions of naked PtNPs can be recovered from fully passivated PtNPs after exposure to Exo I. Experiments carried out using both Au and Hg ultramicroelectrodes reveal some mechanistic aspects of the collision process before and after treatment of the ssDNA-modified PtNPs with Exo I.
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Affiliation(s)
- Alma D Castañeda
- Department of Chemistry , Center for Electrochemistry, and the Center for Nano- and Molecular Science and Technology , The University of Texas at Austin , 105 E. 24th St., Stop A5300 , Austin , TX 78712-1224 , USA . ; Tel: +1-512-475-8674
| | - Donald A Robinson
- Department of Chemistry , Center for Electrochemistry, and the Center for Nano- and Molecular Science and Technology , The University of Texas at Austin , 105 E. 24th St., Stop A5300 , Austin , TX 78712-1224 , USA . ; Tel: +1-512-475-8674
| | - Keith J Stevenson
- Department of Chemistry , Center for Electrochemistry, and the Center for Nano- and Molecular Science and Technology , The University of Texas at Austin , 105 E. 24th St., Stop A5300 , Austin , TX 78712-1224 , USA . ; Tel: +1-512-475-8674
| | - Richard M Crooks
- Department of Chemistry , Center for Electrochemistry, and the Center for Nano- and Molecular Science and Technology , The University of Texas at Austin , 105 E. 24th St., Stop A5300 , Austin , TX 78712-1224 , USA . ; Tel: +1-512-475-8674
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38
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Bentley CL, Kang M, Unwin PR. Time-Resolved Detection of Surface Oxide Formation at Individual Gold Nanoparticles: Role in Electrocatalysis and New Approach for Sizing by Electrochemical Impacts. J Am Chem Soc 2016; 138:12755-12758. [DOI: 10.1021/jacs.6b08124] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Cameron L. Bentley
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Minkyung Kang
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Patrick R. Unwin
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
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39
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Brasiliense V, Berto P, Combellas C, Tessier G, Kanoufi F. Electrochemistry of Single Nanodomains Revealed by Three-Dimensional Holographic Microscopy. Acc Chem Res 2016; 49:2049-57. [PMID: 27598333 DOI: 10.1021/acs.accounts.6b00335] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Interest in nanoparticles has vigorously increased over the last 20 years as more and more studies show how their use can potentially revolutionize science and technology. Their applications span many different academically and industrially relevant fields such as catalysis, materials science, health, etc. Until the past decade, however, nanoparticle studies mostly relied on ensemble studies, thus leaving aside their chemical heterogeneity at the single particle level. Over the past few years, powerful new tools appeared to probe nanoparticles individually and in situ. This Account describes how we drew inspiration from the emerging fields of nanoelectrochemistry and plasmonics-based high resolution holographic microscopy to develop a coupled approach capable of analyzing in operando (electro)chemical reaction over one single nanoparticle. A brief overview of selected optical strategies to image NPs in situ with emphasis on scattering based methods is presented. In an electrochemical context, it is necessary to track particle behavior both in solution and near a polarized electrode, which is why 3D optical observation is particularly appealing. These approaches are discussed together with strategies to track NPs beyond the diffraction limit, allowing a much finer description of their trajectories. Then, the holographic setup is used to study electrochemically triggered Ag NP oxidation reaction in the presence of different electrolytes. Holography is shown to be a powerful technique to track and analyze the trajectory of individual NPs in situ, which further sheds light on in operando behaviors such as electrogenerated NP transport, aggregation, or adsorption. We then show that spectroscopy and scattering-based optical methods are reliable and sensitive to the point of being used to investigate and quantify NP (electro)chemical reactions in model cases. However, since real chemical reactions usually take place in an inherently complex environment, approaches based exclusively on optical imaging only reach their limitations. The strategy is then taken one step further by merging together electrochemical nanoimpact experiments with 3D optical monitoring. Previous strategies are validated by showing that in simple cases, these two independent ways of probing NP size and reactivity yield the same results. For more complicated reactions (e.g., multistep reactions), one must go beyond either technique by showing that the two approaches are perfectly complementary and that the two signals contain information of different natures, thus providing a much better characterization of the reaction. This point is illustrated by studying Ag NP oxidation (single or agglomerates) in the presence of a precipitating agent, where the actual oxidation is uncoupled from the dissolution of the particle, thus proving the point of our symbiotic approach.
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Affiliation(s)
- Vitor Brasiliense
- Université Sorbonne Paris Cité, Université Paris Diderot, ITODYS CNRS UMR 7086, 15 rue Jean de Baïf, F-75013 Paris, France
| | - Pascal Berto
- Université Sorbonne Paris Cité, Université Paris Descartes, Neurophotonics Laboratory CNRS UMR 8250, 45 rue des Saints-Pères, F-75006 Paris, France
| | - Catherine Combellas
- Université Sorbonne Paris Cité, Université Paris Diderot, ITODYS CNRS UMR 7086, 15 rue Jean de Baïf, F-75013 Paris, France
| | - Gilles Tessier
- Université Sorbonne Paris Cité, Université Paris Descartes, Neurophotonics Laboratory CNRS UMR 8250, 45 rue des Saints-Pères, F-75006 Paris, France
| | - Frédéric Kanoufi
- Université Sorbonne Paris Cité, Université Paris Diderot, ITODYS CNRS UMR 7086, 15 rue Jean de Baïf, F-75013 Paris, France
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40
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Robinson DA, Duay J, Kondajji AM, Stevenson KJ. Mechanistic aspects of hydrazine-induced Pt colloid instability and monitoring aggregation kinetics with nanoparticle impact electroanalysis. Faraday Discuss 2016; 193:293-312. [DOI: 10.1039/c6fd00121a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we investigate the mechanistic aspects of Pt nanoparticle (NP) aggregation in solutions typically used for detecting NP/electrode impacts by electrocatalytic amplification (ECA). We previously proposed a general mechanism for Pt colloid destabilization that involved the participation of both the hydrazine redox probe and the pH buffer species as coagulants. Herein the Pt NP coagulation and aggregation mechanisms were further investigated with microscopic kinetic NP concentration monitoring and zeta potential measurements using nanoparticle tracking analysis (NTA), as well as open circuit potential experiments with a citrate-treated polycrystalline Pt surface to assess electrical double layer potential. After considering the combined results of these experiments we propose that the colloidal stability of citrate-capped platinum nanoparticles involves much more than the typical physicochemical interactions predicted by DLVO theory. A structure based on intermolecular H-bonding in the citrate capping layer is the most plausible explanation for the exceptional stability of large Pt NPs in high ionic strength buffers. Thus, the mechanism of Pt NP aggregation includes specific reactive contributions from hydrazine. The catalytic decomposition of hydrazine, in particular, is thought to occur to some extent at the citrate-coated Pt surface while the citrate remains adsorbed. Evolved gases such as ammonia and possible surface bound intermediates from Pt-catalyzed decomposition of hydrazine may disrupt the stability of the citrate layer, causing colloidal instability and thus promoting Pt NP coagulation. In the closing section, we demonstrate nanoparticle impact electroanalysis by ECA detection as a method to quantify Pt NP concentration with adequate time resolution for monitoring the kinetics of Pt NP coagulation.
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Affiliation(s)
- D. A. Robinson
- Department of Chemistry
- Center for Nano- and Molecular Science and Technology
- The University of Texas at Austin
- Austin
- USA
| | - J. Duay
- Department of Chemistry
- Center for Nano- and Molecular Science and Technology
- The University of Texas at Austin
- Austin
- USA
| | - A. M. Kondajji
- Department of Chemistry
- Center for Nano- and Molecular Science and Technology
- The University of Texas at Austin
- Austin
- USA
| | - K. J. Stevenson
- Department of Chemistry
- Center for Nano- and Molecular Science and Technology
- The University of Texas at Austin
- Austin
- USA
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