1
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Han S, Lee HJ, Kim T, Lim SY, Kim J. Flexible and Dynamic Light-Guided Electrochemiluminescence for Spatiotemporal Imaging of Photoelectrochemical Processes on Hematite. Anal Chem 2024. [PMID: 38917341 DOI: 10.1021/acs.analchem.3c05097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
Here, we report an electrochemiluminescence (ECL)-based approach for imaging of local photoelectrochemical processes on hematite in a spatially and temporally controlled manner. The local processes were guided by flexible and dynamic light illumination, not requiring any prepatterned conductive features or photomasks, with a digital micromirror device (DMD). The imaging approach was based on light-addressable electrochemical reactions on hematite, resulting in photoinduced ECL emission for spatiotemporally resolved imaging of photoelectrochemical processes selectively guided by light illumination. After clarifying the capability of hematite as a photosensitive electrode, we validated that the illuminated hematite exhibited stable light-guided ECL emission in correspondence with the illuminated area, with a spatial resolution of 0.8 μm and a temporal resolution of 1 μs, even over a long period of 6 h. More importantly, this study exemplified the simple yet effective ECL-based approach for electrochemical visualization of local photoelectrochemical processes guided by flexible and dynamic adjustment of light illumination in a spatiotemporally controlled way.
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Affiliation(s)
- Sungeun Han
- Department of Chemistry, Research Institute for Basic Science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hyun Joo Lee
- Department of Chemistry, Research Institute for Basic Science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Taeyoon Kim
- Department of Chemistry, Research Institute for Basic Science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Sung Yul Lim
- Department of Chemistry, Research Institute for Basic Science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Joohoon Kim
- Department of Chemistry, Research Institute for Basic Science, Kyung Hee University, Seoul 02447, Republic of Korea
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Republic of Korea
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2
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He Y, Dong Y, Zhang Y, Li Y, Li H. Graphene Nano-Blister in Graphite for Future Cathode in Dual-Ion Batteries: Fundamentals, Advances, and Prospects. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207426. [PMID: 36950760 DOI: 10.1002/advs.202207426] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/15/2023] [Indexed: 05/27/2023]
Abstract
The intercalating of anions into cost-effective graphite electrode provides a high operating voltage, therefore, the dual-ion batteries (DIBs) as novel energy storage device has attracted much attention recently. The "graphene in graphite" has always existed in the graphite cathode of DIBs, but has rarely been researched. It is foreseeable that the graphene blisters with the intact lattice structure in the shell can utilize its ultra-high elastic stiffness and reversible lattice expansion for increasing the storage capacity of anions in the batteries. This review proposes an expected "blister model" by introducing the high elasticity of graphene blisters and its possible formation mechanism. The unique blisters composed of multilayer graphene that do not fall off on the graphite surface may become indispensable in nanotechnology in the future development of cathode materials for DIBs.
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Affiliation(s)
- Yitao He
- Department of Energy and Power Engineering, School of Energy and Environment, Anhui University of Technology, Ma'anshan, Anhui, 243002, China
| | - Yujie Dong
- Department of Energy and Power Engineering, School of Energy and Environment, Anhui University of Technology, Ma'anshan, Anhui, 243002, China
| | - Yaohui Zhang
- School of Physics, Harbin Institute of Technology, No. 92 Xidazhi Street, Harbin, Heilongjiang, 150001, China
| | - Yongtao Li
- Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Ma'anshan, Anhui, 243002, China
| | - Haijin Li
- Department of Energy and Power Engineering, School of Energy and Environment, Anhui University of Technology, Ma'anshan, Anhui, 243002, China
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3
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Santana Santos C, Jaato BN, Sanjuán I, Schuhmann W, Andronescu C. Operando Scanning Electrochemical Probe Microscopy during Electrocatalysis. Chem Rev 2023; 123:4972-5019. [PMID: 36972701 PMCID: PMC10168669 DOI: 10.1021/acs.chemrev.2c00766] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Scanning electrochemical probe microscopy (SEPM) techniques can disclose the local electrochemical reactivity of interfaces in single-entity and sub-entity studies. Operando SEPM measurements consist of using a SEPM tip to investigate the performance of electrocatalysts, while the reactivity of the interface is simultaneously modulated. This powerful combination can correlate electrochemical activity with changes in surface properties, e.g., topography and structure, as well as provide insight into reaction mechanisms. The focus of this review is to reveal the recent progress in local SEPM measurements of the catalytic activity of a surface toward the reduction and evolution of O2 and H2 and electrochemical conversion of CO2. The capabilities of SEPMs are showcased, and the possibility of coupling other techniques to SEPMs is presented. Emphasis is given to scanning electrochemical microscopy (SECM), scanning ion conductance microscopy (SICM), electrochemical scanning tunneling microscopy (EC-STM), and scanning electrochemical cell microscopy (SECCM).
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Affiliation(s)
- Carla Santana Santos
- Analytical Chemistry - Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, D-44780 Bochum, Germany
| | - Bright Nsolebna Jaato
- Technical Chemistry III, Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen Carl-Benz-Straße 199, 47057 Duisburg, Germany
| | - Ignacio Sanjuán
- Technical Chemistry III, Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen Carl-Benz-Straße 199, 47057 Duisburg, Germany
| | - Wolfgang Schuhmann
- Analytical Chemistry - Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, D-44780 Bochum, Germany
| | - Corina Andronescu
- Technical Chemistry III, Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen Carl-Benz-Straße 199, 47057 Duisburg, Germany
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4
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Scanning gel electrochemical microscopy: Combination with quartz crystal microbalance for studying the electrolyte residue. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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5
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Gao R, Edwards MA, Qiu Y, Barman K, White HS. Visualization of Hydrogen Evolution at Individual Platinum Nanoparticles at a Buried Interface. J Am Chem Soc 2020; 142:8890-8896. [DOI: 10.1021/jacs.0c02202] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Rui Gao
- 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
| | - Yinghua Qiu
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Koushik Barman
- 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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6
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Li Y, Wu X, Yang S, Liang S, Tian H, Sun B. A Natural Light Visible Colorimetric Responses Fluorescent Probe for Hydrazine Detection. ANAL SCI 2020; 36:323-327. [PMID: 31631102 DOI: 10.2116/analsci.19p287] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 10/08/2019] [Indexed: 08/09/2023]
Abstract
A natural light visible colorimetric responses fluorescent probe (Probe 1) was developed for N2H4 detection. The recognition mechanism of Probe 1 for hydrazine is based on addition-cyclization. The LOD of Probe 1 for N2H4 was 80.3 nM (0.0026 mg/L), which is below the national limited standard (0.02 mg/L). When various concentrations of N2H4 were added, the color of the Probe 1 solution was graded gradually from yellow to colorless, which could be observed under natural light. The changing course only takes 5 min. Furthermore, Probe 1 was successful applied to detect N2H4 in mineral water, seawater, tap water and river water. The obtained recovery ranged from 91.91 - 100.00%. Probe 1 has great potential, developed as a visual tool for N2H4 rapid detection.
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Affiliation(s)
- Yanan Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, 100048, China
| | - Xiaoming Wu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, 100048, China
| | - Shaoxiang Yang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, 100048, China.
| | - Sen Liang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, 100048, China
| | - Hongyu Tian
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, 100048, China
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, 100048, China
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7
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Highly sensitive detection of hydrazine by a disposable, Poly(Tannic Acid)-Coated carbon electrode. Biosens Bioelectron 2020; 150:111927. [DOI: 10.1016/j.bios.2019.111927] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 11/17/2019] [Accepted: 11/25/2019] [Indexed: 01/14/2023]
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8
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Wu X, Li Y, Yang S, Tian H, Sun B. Discriminative detection of mercury (II) and hydrazine using a dual‐function fluorescent probe. LUMINESCENCE 2020; 35:754-762. [DOI: 10.1002/bio.3781] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 01/02/2020] [Accepted: 01/12/2020] [Indexed: 12/20/2022]
Affiliation(s)
- Xiaoming Wu
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, Beijing Key Laboratory of Flavour ChemistryBeijing Technology and Business University Beijing China
| | - Yanan Li
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, Beijing Key Laboratory of Flavour ChemistryBeijing Technology and Business University Beijing China
| | - Shaoxiang Yang
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, Beijing Key Laboratory of Flavour ChemistryBeijing Technology and Business University Beijing China
| | - Hongyu Tian
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, Beijing Key Laboratory of Flavour ChemistryBeijing Technology and Business University Beijing China
| | - Baoguo Sun
- Beijing Advanced Innovation Centre for Food Nutrition and Human Health, Beijing Key Laboratory of Flavour ChemistryBeijing Technology and Business University Beijing China
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9
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Li X, Yin J, Liu W, Yang Y, Xu W, Li W. A Novel Double Fluorescence‐Suppressed Probe for the Detection of Hydrazine. ChemistrySelect 2019. [DOI: 10.1002/slct.201902960] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Xue Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of EducationKey Laboratory of Chemical Biology of Hebei ProvinceCollege of Chemistry & Environmental ScienceHebei University Baoding 071002 PR China
| | - Jiwei Yin
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of EducationKey Laboratory of Chemical Biology of Hebei ProvinceCollege of Chemistry & Environmental ScienceHebei University Baoding 071002 PR China
| | - Weiyan Liu
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of EducationKey Laboratory of Chemical Biology of Hebei ProvinceCollege of Chemistry & Environmental ScienceHebei University Baoding 071002 PR China
| | - Yutao Yang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of EducationKey Laboratory of Chemical Biology of Hebei ProvinceCollege of Chemistry & Environmental ScienceHebei University Baoding 071002 PR China
| | - Wenzhi Xu
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of EducationKey Laboratory of Chemical Biology of Hebei ProvinceCollege of Chemistry & Environmental ScienceHebei University Baoding 071002 PR China
| | - Wei Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of EducationKey Laboratory of Chemical Biology of Hebei ProvinceCollege of Chemistry & Environmental ScienceHebei University Baoding 071002 PR China
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10
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Payne NA, Mauzeroll J. Identifying Nanoscale Pinhole Defects in Nitroaryl Layers with Scanning Electrochemical Cell Microscopy. ChemElectroChem 2019. [DOI: 10.1002/celc.201901394] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Nicholas A. Payne
- Department of ChemistryMcGill University 801 Sherbrooke Street West Montreal, QC Canada H3 A 0B8
| | - Janine Mauzeroll
- Department of ChemistryMcGill University 801 Sherbrooke Street West Montreal, QC Canada H3 A 0B8
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11
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Zhuang J, Liao X, Deng Y, Cheng L, Zia AA, Cai Y, Zhou M. A circuit model for SECCM and topographic imaging method in AC mode. Micron 2019; 126:102738. [PMID: 31476526 DOI: 10.1016/j.micron.2019.102738] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 08/22/2019] [Accepted: 08/22/2019] [Indexed: 11/28/2022]
Abstract
Single-barrel scanning electrochemical cell microscopy (SECCM) can be used to perform electrochemical activity analysis and sample surface imaging simultaneously. Compared to SECM & SICM in imaging, the most significant advantage of SECCM is that it does not need to immerse sample in solution, which avoids the electrochemical reaction between electrolyte and sample surface. In traditional direct current (DC) topographic imaging method of SECCM, when the meniscus droplet is contacted with the sample surface, the presence of the redox current determines the Z-height of a scanning point. However, there are some problems in DC mode. Firstly, the redox (Faraday) current is very small (pA/nA), which is susceptible to interference of ambient environment. Secondly, since the inertia of the droplet, the overall height of the imaged topography depends on the droplet size (probe tip diameter) and scanning speed. Therefore, this paper first proposes a single-barrel SECCM circuit model and verifies this circuit model using the first-order zero-state response in the DC mode. Then, an AC scanning mode is proposed, which monitors the change of AC amplitude to determine the Z-height of the scanning point when the meniscus droplet approaches the surface of the sample. The experiments demonstrate that the AC mode has a powerful ability to overcome interference and provide high-stable topographic imaging.
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Affiliation(s)
- Jian Zhuang
- Key Laboratory of Education Ministry for Modern Design Rotor-Bearing System, Jiaotong University, Xi'an, 710049, China; School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Xiaobo Liao
- Key Laboratory of Education Ministry for Modern Design Rotor-Bearing System, Jiaotong University, Xi'an, 710049, China; School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, China; School of Manufacturing Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Yalou Deng
- Key Laboratory of Education Ministry for Modern Design Rotor-Bearing System, Jiaotong University, Xi'an, 710049, China; School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Lei Cheng
- Key Laboratory of Education Ministry for Modern Design Rotor-Bearing System, Jiaotong University, Xi'an, 710049, China; School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Ali Akmal Zia
- Key Laboratory of Education Ministry for Modern Design Rotor-Bearing System, Jiaotong University, Xi'an, 710049, China; School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yong Cai
- School of Manufacturing Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Maolin Zhou
- School of Manufacturing Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
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12
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Martín-Yerga D, Costa-García A, Unwin PR. Correlative Voltammetric Microscopy: Structure-Activity Relationships in the Microscopic Electrochemical Behavior of Screen Printed Carbon Electrodes. ACS Sens 2019; 4:2173-2180. [PMID: 31353890 DOI: 10.1021/acssensors.9b01021] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Screen-printed carbon electrodes (SPCEs) are widely used for electrochemical sensors. However, little is known about their electrochemical behavior at the microscopic level. In this work, we use voltammetric scanning electrochemical cell microscopy (SECCM), with dual-channel probes, to determine the microscopic factors governing the electrochemical response of SPCEs. SECCM cyclic voltammetry (CV) measurements are performed directly in hundreds of different locations of SPCEs, with high spatial resolution, using a submicrometer sized probe. Further, the localized electrode activity is spatially correlated to colocated surface structure information from scanning electron microscopy and micro-Raman spectroscopy. This approach is applied to two model electrochemical processes: hexaammineruthenium(III/II) ([Ru(NH3)6]3+/2+), a well-known outer-sphere redox couple, and dopamine (DA), which undergoes a more complex electron-proton coupled electro-oxidation, with complications from adsorption of both DA and side-products. The electrochemical reduction of [Ru(NH3)6]3+ proceeds fairly uniformly across the surface of SPCEs on the submicrometer scale. In contrast, DA electro-oxidation shows a strong dependence on the microstructure of the SPCE. By studying this process at different concentrations of DA, the relative contributions of (i) intrinsic electrode kinetics and (ii) adsorption of DA are elucidated in detail, as a function of local electrode character and surface structure. These studies provide major new insights on the electrochemical activity of SPCEs and further position voltammetric SECCM as a powerful technique for the electrochemical imaging of complex, heterogeneous, and topographically rough electrode surfaces.
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Affiliation(s)
- Daniel Martín-Yerga
- Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería, Oviedo 33006, Spain
| | - Agustín Costa-García
- Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería, Oviedo 33006, Spain
| | - Patrick R. Unwin
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
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13
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Daviddi E, Gonos KL, Colburn AW, Bentley CL, Unwin PR. Scanning Electrochemical Cell Microscopy (SECCM) Chronopotentiometry: Development and Applications in Electroanalysis and Electrocatalysis. Anal Chem 2019; 91:9229-9237. [PMID: 31251561 DOI: 10.1021/acs.analchem.9b02091] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Scanning electrochemical cell microscopy (SECCM) has been applied for nanoscale (electro)activity mapping in a range of electrochemical systems but so far has almost exclusively been performed in controlled-potential (amperometric/voltammetric) modes. Herein, we consider the use of SECCM operated in a controlled-current (galvanostatic or chronopotentiometric) mode, to synchronously obtain spatially resolved electrode potential (i.e., electrochemical activity) and topographical "maps". This technique is first applied, as proof of concept, to study the electrochemically reversible [Ru(NH3)6]3+/2+ electron transfer process at a glassy carbon electrode surface, where the experimental data are in good agreement with well-established chronopotentiometric theory under quasi-radial diffusion conditions. The [Ru(NH3)6]3+/2+ process has also been imaged at "aged" highly ordered pyrolytic graphite (HOPG), where apparently enhanced electrochemical activity is measured at the edge plane relative to the basal plane surface, consistent with potentiostatic measurements. Finally, chronopotentiometric SECCM has been employed to benchmark a promising electrocatalytic system, the hydrogen evolution reaction (HER) at molybdenum disulfide (MoS2), where higher electrocatalytic activity (i.e., lower overpotential at a current density of 2 mA cm-2) is observed at the edge plane compared to the basal plane surface. These results are in excellent agreement with previous controlled-potential SECCM studies, confirming the viability of the technique and thereby opening up new possibilities for the use of chronopotentiometric methods for quantitative electroanalysis at the nanoscale, with promising applications in energy storage (battery) studies, electrocatalyst benchmarking, and corrosion research.
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Affiliation(s)
- Enrico Daviddi
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , U.K
| | - Katerina L Gonos
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , U.K
| | - Alex W Colburn
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , U.K
| | - Cameron L Bentley
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , U.K
| | - Patrick R Unwin
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , U.K
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14
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A dual-function fluorescent probe for discriminative detection of hydrogen sulfide and hydrazine. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.03.039] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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Wu T, Alharbi A, Kiani R, Shahrjerdi D. Quantitative Principles for Precise Engineering of Sensitivity in Graphene Electrochemical Sensors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1805752. [PMID: 30548684 PMCID: PMC6823930 DOI: 10.1002/adma.201805752] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 11/11/2018] [Indexed: 05/15/2023]
Abstract
A major difficulty in implementing carbon-based electrode arrays with high device-packing density is to ensure homogeneous and high sensitivities across the array. Overcoming this obstacle requires quantitative microscopic models that can accurately predict electrode sensitivity from its material structure. Such models are currently lacking. Here, it is shown that the sensitivity of graphene electrodes to dopamine and serotonin neurochemicals in fast-scan cyclic voltammetry measurements is strongly linked to point defects, whereas it is unaffected by line defects. Using the physics of point defects in graphene, a microscopic model is introduced that explains how point defects determine sensitivity. The predictions of this model match the empirical observation that sensitivity linearly increases with the density of point defects. This model is used to guide the nanoengineering of graphene structures for optimum sensitivity. This approach achieves reproducible fabrication of miniaturized sensors with extraordinarily higher sensitivity than conventional materials. These results lay the foundation for new integrated electrochemical sensor arrays based on nanoengineered graphene.
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Affiliation(s)
- Ting Wu
- Electrical and Computer Engineering, New York University, Brooklyn, NY, 11201, USA
| | - Abdullah Alharbi
- Electrical and Computer Engineering, New York University, Brooklyn, NY, 11201, USA
| | - Roozbeh Kiani
- Center for Neural Science, New York University, New York, NY, 10003, USA
- Neuroscience Institute, New York University Langone Medical Center, New York, NY, 10016, USA
| | - Davood Shahrjerdi
- Electrical and Computer Engineering, New York University, Brooklyn, NY, 11201, USA
- Center for Quantum Phenomena, Physics Department, New York University, New York, NY, 10003, USA
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16
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The graphitic carbon nitride/polyaniline/silver nanocomposites as a potential electrocatalyst for hydrazine detection. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2018.11.022] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Bentley CL, Edmondson J, Meloni GN, Perry D, Shkirskiy V, Unwin PR. Nanoscale Electrochemical Mapping. Anal Chem 2018; 91:84-108. [PMID: 30500157 DOI: 10.1021/acs.analchem.8b05235] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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18
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Facet‐Resolved Electrochemistry of Polycrystalline Boron‐Doped Diamond Electrodes: Microscopic Factors Determining the Solvent Window in Aqueous Potassium Chloride Solutions. ChemElectroChem 2018. [DOI: 10.1002/celc.201800770] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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19
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Wang H, Wu X, Tao F, Yang S, Tian H, Liu Y, Sun B. A Highly Selective and Colorimetric Fluorescent Probe for Hydrazine Detection in Water Samples. ANAL SCI 2018; 34:1297-1302. [PMID: 30058602 DOI: 10.2116/analsci.18p207] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A new highly selective and visible colorimetric fluorescent probe (probe 1) was developed to detect hydrazine (N2H4) concentration in real water samples. As different concentrations of N2H4 were added, the color of the probe solution was graded gradually from colorless to pink, which could be observed by the naked eye under UV light at 365 nm. Our research indicates that probe 1 offers a certain practical significance for use as a visible detection agent to detect N2H4 efficiently by distinct color response. Furthermore, our work showed that probe 1 can be successfully applied to detect N2H4 concentrations in real water samples.
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Affiliation(s)
- Hao Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University
| | - Xiaoming Wu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University
| | - Feiyan Tao
- Research and Development Centre, China Tobacco Sichuan Industrial Co., Ltd
| | - Shaoxiang Yang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University
| | - Hongyu Tian
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University
| | - Yongguo Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University
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20
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Lv H, Sun H, Wang S, Kong F. A novel dicyanoisophorone based red-emitting fluorescent probe with a large Stokes shift for detection of hydrazine in solution and living cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 196:160-167. [PMID: 29444498 DOI: 10.1016/j.saa.2018.02.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 01/31/2018] [Accepted: 02/07/2018] [Indexed: 06/08/2023]
Abstract
A novel dicyanoisophorone based fluorescent probe HP was developed to detect hydrazine. Upon the addition of hydrazine, probe HP displayed turn-on fluorescence in the red region with a large Stokes shift (180nm). This probe exhibited high selectivity and high sensitivity to hydrazine in solution. The detection limit of HP was found to be 3.26ppb, which was lower than the threshold limit value set by USEPA (10ppb). Moreover, the probe was successfully applied to detect hydrazine in different water samples and living cells.
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Affiliation(s)
- Hongshui Lv
- School of Paper-making and Botanical Resources Engineering, Key Lab of Pulp and Paper Science & Technology, Ministry of Education (Shandong Province), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Haiyan Sun
- School of Paper-making and Botanical Resources Engineering, Key Lab of Pulp and Paper Science & Technology, Ministry of Education (Shandong Province), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Shoujuan Wang
- School of Paper-making and Botanical Resources Engineering, Key Lab of Pulp and Paper Science & Technology, Ministry of Education (Shandong Province), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Fangong Kong
- School of Paper-making and Botanical Resources Engineering, Key Lab of Pulp and Paper Science & Technology, Ministry of Education (Shandong Province), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
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Bentley CL, Andronescu C, Smialkowski M, Kang M, Tarnev T, Marler B, Unwin PR, Apfel UP, Schuhmann W. Die lokale Oberflächenstruktur und -zusammensetzung bestimmt die Wasserstoffentwicklung an Eisen-Nickelsulfiden. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712679] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Cameron L. Bentley
- Department of Chemistry; University of Warwick; Coventry CV4 7AL Großbritannien
| | - Corina Andronescu
- Analytische Chemie - Zentrum für Elektrochemie; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Deutschland
- University Politehnica of Bucharest; Department of Bioresources and Polymer Science; 1-7 Gh. Polizu Street Bucharest Rumänien
| | - Mathias Smialkowski
- Inorganic Chemistry I; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Deutschland
| | - Minkyung Kang
- Department of Chemistry; University of Warwick; Coventry CV4 7AL Großbritannien
| | - Tsvetan Tarnev
- Analytische Chemie - Zentrum für Elektrochemie; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Deutschland
| | - Bernd Marler
- Institut für Geologie, Mineralogie und Geophysik; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Deutschland
| | - Patrick R. Unwin
- Department of Chemistry; University of Warwick; Coventry CV4 7AL Großbritannien
| | - Ulf-Peter Apfel
- Inorganic Chemistry I; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Deutschland
- Fraunhofer UMSICHT; Osterfelder Straße 3 46047 Oberhausen Deutschland
| | - Wolfgang Schuhmann
- Analytische Chemie - Zentrum für Elektrochemie; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Deutschland
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22
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Bentley CL, Andronescu C, Smialkowski M, Kang M, Tarnev T, Marler B, Unwin PR, Apfel UP, Schuhmann W. Local Surface Structure and Composition Control the Hydrogen Evolution Reaction on Iron Nickel Sulfides. Angew Chem Int Ed Engl 2018; 57:4093-4097. [DOI: 10.1002/anie.201712679] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 01/24/2018] [Indexed: 11/10/2022]
Affiliation(s)
| | - Corina Andronescu
- Analytical Chemistry-Center for Electrochemical Sciences (CES); Ruhr-Universität Bochum; Universitätsstrasse 150 44780 Bochum Germany
- University Politehnica of Bucharest; Department of Bioresources and Polymer Science; 1-7 Gh. Polizu Street Bucharest Romania
| | - Mathias Smialkowski
- Inorganic Chemistry I; Ruhr-Universität Bochum; Universitätsstrasse 150 44780 Bochum Germany
| | - Minkyung Kang
- Department of Chemistry; University of Warwick; Coventry CV4 7AL UK
| | - Tsvetan Tarnev
- Analytical Chemistry-Center for Electrochemical Sciences (CES); Ruhr-Universität Bochum; Universitätsstrasse 150 44780 Bochum Germany
| | - Bernd Marler
- Department of Geology, Mineralogy and Geophysics; Ruhr-Universität Bochum; Universitätsstrasse 150 44780 Bochum Germany
| | - Patrick R. Unwin
- Department of Chemistry; University of Warwick; Coventry CV4 7AL UK
| | - Ulf-Peter Apfel
- Inorganic Chemistry I; Ruhr-Universität Bochum; Universitätsstrasse 150 44780 Bochum Germany
- Fraunhofer UMSICHT; Osterfelder Strasse 3 46047 Oberhausen Germany
| | - Wolfgang Schuhmann
- Analytical Chemistry-Center for Electrochemical Sciences (CES); Ruhr-Universität Bochum; Universitätsstrasse 150 44780 Bochum Germany
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Wang L, Teng Q, Sun X, Chen Y, Wang Y, Wang H, Zhang Y. Facile synthesis of metal-organic frameworks/ordered mesoporous carbon composites with enhanced electrocatalytic ability for hydrazine. J Colloid Interface Sci 2018; 512:127-133. [DOI: 10.1016/j.jcis.2017.10.050] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 10/12/2017] [Accepted: 10/13/2017] [Indexed: 11/27/2022]
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Bentley CL, Unwin PR. Nanoscale electrochemical movies and synchronous topographical mapping of electrocatalytic materials. Faraday Discuss 2018; 210:365-379. [PMID: 29999075 DOI: 10.1039/c8fd00028j] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Techniques in the scanning electrochemical probe microscopy (SEPM) family have shown great promise for resolving nanoscale structure-function (e.g., catalytic activity) at complex (electro)chemical interfaces, which is a long-term aspiration in (electro)materials science. In this work, we explore how a simple meniscus imaging probe, based on an easily-fabricated, single-channeled nanopipette (inner diameter ≈ 30 nm) can be deployed in the scanning electrochemical cell microscopy (SECCM) platform as a fast, versatile and robust method for the direct, synchronous electrochemical/topographical imaging of electrocatalytic materials at the nanoscale. Topographical and voltammetric data are acquired synchronously at a spatial resolution of 50 nm to construct maps that resolve particular surface features on the sub-10 nm scale and create electrochemical activity movies composed of hundreds of potential-resolved images on the minutes timescale. Using the hydrogen evolution reaction (HER) at molybdenite (MoS2) as an exemplar system, the experimental parameters critical to achieving a robust scanning protocol (e.g., approach voltage, reference potential calibration) with high resolution (e.g., hopping distance) and optimal scan times (e.g., voltammetric scan rate, approach rate etc.) are considered and discussed. Furthermore, sub-nanoentity reactivity mapping is demonstrated with glassy carbon (GC) supported single-crystalline {111}-oriented two-dimensional Au nanocrystals (AuNCs), which exhibit uniform catalytic activity at the single-entity and sub-single entity level. The approach outlined herein signposts a future in (electro)materials science in which the activity of electroactive nanomaterials can be viewed directly and related to structure through electrochemical movies, revealing active sites unambiguously.
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Affiliation(s)
- Cameron L Bentley
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK.
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Bentley CL, Kang M, Unwin PR. Nanoscale Structure Dynamics within Electrocatalytic Materials. J Am Chem Soc 2017; 139:16813-16821. [PMID: 29058886 DOI: 10.1021/jacs.7b09355] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Electrochemical interfaces used for sensing, (electro)catalysis, and energy storage are usually nanostructured to expose particular surface sites, but probing the intrinsic activity of these sites is often beyond current experimental capability. Herein, it is demonstrated how a simple meniscus imaging probe of just 30 nm in size can be deployed for direct electrochemical and topographical imaging of electrocatalytic materials at the nanoscale. Spatially resolved topographical and electrochemical data are collected synchronously to create topographical images in which step-height features as small as 2 nm are easily resolved and potential-resolved electrochemical activity movies composed of hundreds of images are obtained in a matter of minutes. The technique has been benchmarked by investigating the hydrogen evolution reaction on molybdenum disulfide, where it is shown that the basal plane possesses uniform activity, while surface defects (i.e., few to multilayer step edges) give rise to a morphology-dependent (i.e., height-dependent) enhancement in catalytic activity. The technique was then used to investigate the electro-oxidation of hydrazine at the surface of electrodeposited Au nanoparticles (AuNPs) supported on glassy carbon, where subnanoentity (i.e., sub-AuNP) reactivity mapping has been demonstrated. We show, for the first time, that electrochemical reaction rates vary significantly across an individual AuNP surface and that these single entities cannot be considered as uniformly active. The work herein provides a road map for future studies in electrochemical science, in which the activity of nanostructured materials can be viewed as quantitative movies, readily obtained, to reveal active sites directly and unambiguously.
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Affiliation(s)
- Cameron L Bentley
- Department of Chemistry, University of Warwick , Coventry CV4 7AL, U.K
| | - Minkyung Kang
- Department of Chemistry, University of Warwick , Coventry CV4 7AL, U.K
| | - Patrick R Unwin
- Department of Chemistry, University of Warwick , Coventry CV4 7AL, U.K
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26
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Bentley CL, Kang M, Maddar FM, Li F, Walker M, Zhang J, Unwin PR. Electrochemical maps and movies of the hydrogen evolution reaction on natural crystals of molybdenite (MoS 2): basal vs. edge plane activity. Chem Sci 2017; 8:6583-6593. [PMID: 28989686 PMCID: PMC5627349 DOI: 10.1039/c7sc02545a] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 07/25/2017] [Indexed: 12/23/2022] Open
Abstract
Two dimensional (2D) semiconductor materials, such as molybdenum disulfide (MoS2) have attracted considerable interest in a range of chemical and electrochemical applications, for example, as an abundant and low-cost alternative electrocatalyst to platinum for the hydrogen evolution reaction (HER). While it has been proposed that the edge plane of MoS2 possesses high catalytic activity for the HER relative to the "catalytically inert" basal plane, this conclusion has been drawn mainly from macroscale electrochemical (voltammetric) measurements, which reflect the "average" electrocatalytic behavior of complex electrode ensembles. In this work, we report the first spatially-resolved measurements of HER activity on natural crystals of molybdenite, achieved using voltammetric scanning electrochemical cell microscopy (SECCM), whereby pixel-resolved linear-sweep voltammogram (LSV) measurements have allowed the HER to be visualized at multiple different potentials to construct electrochemical flux movies with nanoscale resolution. Key features of the SECCM technique are that characteristic surface sites can be targeted and analyzed in detail and, further, that the electrocatalyst area is known with good precision (in contrast to many macroscale measurements on supported catalysts). Through correlation of the local voltammetric response with information from scanning electron microscopy (SEM) and atomic force microscopy (AFM) in a multi-microscopy approach, it is demonstrated unequivocally that while the basal plane of bulk MoS2 (2H crystal phase) possesses significant activity, the HER is greatly facilitated at the edge plane (e.g., surface defects such as steps, edges or crevices). Semi-quantitative treatment of the voltammetric data reveals that the HER at the basal plane of MoS2 has a Tafel slope and exchange current density (J0) of ∼120 mV per decade and 2.5 × 10-6 A cm-2 (comparable to polycrystalline Co, Ni, Cu and Au), respectively, while the edge plane has a comparable Tafel slope and a J0 that is estimated to be more than an order-of-magnitude larger (∼1 × 10-4 A cm-2). Finally, by tracking the temporal evolution of water contact angle (WCA) after cleavage, it is shown that cathodic polarization has a 'self-cleaning' effect on the surface of MoS2, consistent with the time-independent (i.e., time after cleavage) HER voltammetric response.
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Affiliation(s)
- Cameron L Bentley
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , UK . ;
| | - Minkyung Kang
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , UK . ;
| | - Faduma M Maddar
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , UK . ;
| | - Fengwang Li
- School of Chemistry , Australian Research Council Centre of Excellence for Electromaterials Science , Monash University , Clayton , Vic 3800 , Australia
| | - Marc Walker
- Department of Physics , University of Warwick , Coventry CV4 7AL , UK
| | - Jie Zhang
- School of Chemistry , Australian Research Council Centre of Excellence for Electromaterials Science , Monash University , Clayton , Vic 3800 , Australia
| | - Patrick R Unwin
- Department of Chemistry , University of Warwick , Coventry CV4 7AL , UK . ;
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Takahashi Y, Kumatani A, Shiku H, Matsue T. Scanning Probe Microscopy for Nanoscale Electrochemical Imaging. Anal Chem 2016; 89:342-357. [DOI: 10.1021/acs.analchem.6b04355] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yasufumi Takahashi
- Division
of Electrical Engineering and Computer Science, Kanazawa University, Kanazawa 920-1192, Japan
- Precursory
Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), Saitama 332-0012, Japan
| | - Akichika Kumatani
- Advanced
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
- Graduate
School of Environmental Studies, Tohoku University, Sendai 980-8579, Japan
| | - Hitoshi Shiku
- Department
of Applied Chemistry, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
| | - Tomokazu Matsue
- Advanced
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
- Graduate
School of Environmental Studies, Tohoku University, Sendai 980-8579, Japan
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