Recent progress in the studies of electrochemical interfaces by surface plasmon resonance spectroscopy and microscopy

Chieng, Andy; Chiang, Michelle; Triloges, Kraisarun; Chang, Megan; Wang, Yixian

doi:10.1016/j.coelec.2018.11.002

Cited by 24 publications

(12 citation statements)

References 46 publications

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“…With use of this surface sensitivity, SPR spectroscopy has been widely applied as a biosensing technique, such as for the detection of antigen–antibody reactions, , protein–ligand interactions, nucleic acids, and other biomolecules . Furthermore, when combined with electrochemistry, EC-SPR has been widely applied in various studies of electrochemical interface reactions, such as biomolecule detection, chemical sensing, metal plating, and other electrode to electrolyte interface reactions. , The attenuated total reflection (ATR) condition is usually adopted for the optical configuration of EC-SPR experiments, as it enables the design of a closed-type electrochemical cell. This facilitates operando experiments with nonaqueous volatile electrolytes, such that faint electrode phenomena associated with Li-ion battery reactions can be studied. − Regardless of the above advantages, EC-SPR has not yet been utilized to investigate Li-metal deposition.…”

Section: Introductionmentioning

confidence: 99%

“…61 Furthermore, when combined with electrochemistry, EC-SPR has been widely applied in various studies of electrochemical interface reactions, such as biomolecule detection, 62 chemical sensing, 63 metal plating, 64 and other electrode to electrolyte interface reactions. 65,66 The attenuated total reflection (ATR) condition is usually adopted for the optical configuration of EC-SPR experiments, as it enables the design of a closed-type electrochemical cell. This facilitates operando experiments with nonaqueous volatile electrolytes, such that faint electrode phenomena associated with Li-ion battery reactions can be studied.…”

Section: ■ Introductionmentioning

confidence: 99%

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Electrochemical Surface Plasmon Resonance Spectroscopy for Investigation of the Initial Process of Lithium Metal Deposition

et al. 2021

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The initial process of Li-metal electrodeposition on the negative electrode surface determines the charging performance of Li-metal secondary batteries. However, minute depositions or the early processes of nucleation and growth of Li metal are generally difficult to detect under operando conditions. In this study, we propose an optical diagnostic approach to address these challenges. Surface plasmon resonance (SPR) spectroscopy coupled with electrochemical operation is a promising technique that enables the ultrasensitive detection of the initial stage of Li-metal electrodeposition. The SPR is excited in a thin copper film deposited on a glass substrate, which also serves as a current collector enabling electrochemical Li-metal deposition. For a propylene carbonate (PC)-based Li-ion battery electrolyte, under both cyclic voltammetry and constant-current operation, Li-metal deposition is readily detected by changes in the SPR absorption dip in the reflectance spectrum. Electrochemical SPR is highly sensitive to metal deposition, with a demonstrated capability of detecting an average thickness of approximately 0.1 nm, corresponding to a few atomic layers of Li. To identify the growth mechanism, the SPR reflectance spectra of various possible Li-metal deposition processes were simulated. Comparison of the simulated spectra with the experimental data found good agreement with the well-known nucleation and growth model for Li-metal deposition from PC-based electrolytes. The demonstrated operando electrochemical SPR measurement should be a valuable tool for basic research on the initial Li-metal deposition process.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Electrochemical Surface Plasmon Resonance Spectroscopy for Investigation of the Initial Process of Lithium Metal Deposition

et al. 2021

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“…As this impacts SPR signals, SPR microscopy was also applied to provide spatial resolution to some EIS experiments 5–7 . Such SPR-based developments were recently reviewed elsewhere 8 .…”

Section: Introductionmentioning

confidence: 99%

High spatial resolution electrochemical biosensing using reflected light microscopy

Munteanu

Polonschii

et al. 2019

Sci Rep

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If the analyte does not only change the electrochemical but also the optical properties of the electrode/solution interface, the spatial resolution of an electrochemical sensor can be substantially enhanced by combining the electrochemical sensor with optical microscopy. In order to demonstrate this, electrochemical biosensors for the detection of hydrogen peroxide and glucose were developed by drop casting enzyme and redox polymer mixtures onto planar, optically transparent electrodes. These biosensors generate current signals proportional to the analyte concentration via a reaction sequence which ultimately changes the oxidation state of the redox polymer. Images of the interface of these biosensors were acquired using bright field reflected light microscopy (BFRLM). Analysis showed that the intensity of these images is higher when the redox polymer is oxidized than when it is reduced. It also revealed that the time needed for the redox polymer to change oxidation state can be assayed optically and is dependent on the concentration of the analyte. By combining the biosensor for hydrogen peroxide detection with BFRLM, it was possible to determine hydrogen peroxide in concentrations as low as 12.5 µM with a spatial resolution of 12 µm × 12 µm, without the need for the fabrication of microelectrodes of these dimensions.

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“…6−10 Nanoscale maps of catalytic activity have previously been obtained by in situ spectroscopic and singlemolecule techniques 11−13 and scanning tunneling microscopy (STM). 3,14 Electrochemical scanning probe microscopy techniques, including scanning electrochemical microscopy (SECM), 4,15,16 scanning ion conductance microscopy (SICM), 17 scanning electrochemical cell microscopy (SECCM), 18,19 and plasmonic-based electrochemical current imaging, 20 were employed for reaction rate mapping with a typical spatial resolution of ∼100 nm.…”

mentioning

confidence: 99%

“…The overall electrode activity depends strongly on the local atomic structures, particularly those found at defect sites, edges, and corners that determine reaction rates at specific local active sites. − Mapping heterogeneous surface reactivity with nanoscale spatial resolution is crucially important for developing electrocatalysts and sensors and improving their performance. , Another type of nanoscale measurement–activity mapping at single nanoparticles (NPs)–is required for characterization of nanostructured electrodes and electrocatalysts. − Nanoscale maps of catalytic activity have previously been obtained by in situ spectroscopic and single-molecule techniques − and scanning tunneling microscopy (STM). , Electrochemical scanning probe microscopy techniques, including scanning electrochemical microscopy (SECM), ,, scanning ion conductance microscopy (SICM), scanning electrochemical cell microscopy (SECCM), , and plasmonic-based electrochemical current imaging, were employed for reaction rate mapping with a typical spatial resolution of ∼100 nm.…”

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confidence: 99%

Scanning Electrochemical and Photoelectrochemical Microscopy on Finder Grids: Toward Correlative Multitechnique Imaging of Surfaces

et al. 2021

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Scanning electrochemical microscopy (SECM) is a powerful technique for mapping surface reactivity and investigating heterogeneous processes on the nanoscale. Despite significant advances in high-resolution SECM and photo-SECM imaging, they cannot provide atomic scale structural information about surfaces. By correlating the SECM images with atomic scale structural and bonding information obtained by transmission electron microscopy (TEM) techniques with one-to-one correspondence, one can elucidate the nature of the active sites and understand the origins of heterogeneous surface reactivity. To enable multitechnique imaging of the same nanoscale portion of the electrode surface, we develop a methodology for using a TEM finder grid as a conductive support in SECM and photo-SECM experiments. In this paper, we present the results of our first nanoscale SECM and photo-SECM experiments on carbon TEM grids, including imaging of semiconductor nanorods.

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Recent progress in the studies of electrochemical interfaces by surface plasmon resonance spectroscopy and microscopy

Cited by 24 publications

References 46 publications

Electrochemical Surface Plasmon Resonance Spectroscopy for Investigation of the Initial Process of Lithium Metal Deposition

Electrochemical Surface Plasmon Resonance Spectroscopy for Investigation of the Initial Process of Lithium Metal Deposition

High spatial resolution electrochemical biosensing using reflected light microscopy

Scanning Electrochemical and Photoelectrochemical Microscopy on Finder Grids: Toward Correlative Multitechnique Imaging of Surfaces

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