Dynamic Raman Spectroelectrochemistry of Single Walled Carbon Nanotubes modified electrodes using a Langmuir-Schaefer method

Ibáñez, David; Romero, E.C.; Heras, Aránzazu; Colina, Álvaro

doi:10.1016/j.electacta.2014.02.094

Cited by 26 publications

(35 citation statements)

References 37 publications

(38 reference statements)

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“…Figure S1b displays the experimental Raman spectroelectrochemical setup, in which Confocal Raman Voyage (BWTEK) and AUTOLAB PGSTAT 20 are synchronized by a trigger. Further details about the dynamic spectroelectrochemical Raman system have been previously reported . An XYZ piezoelectric positioner (Newport 271) controlled by a Newport motion controller (Newport, ESP 301) was used to focus the laser beam with micrometric resolution.…”

Section: Methodssupporting

confidence: 69%

Electrodeposition of silver nanoparticles in the presence of different complexing agents by time‐resolved Raman spectroelectrochemistry

Ibáñez

Izquierdo

Fernandez-Blanco

et al. 2017

J Raman Spectroscopy

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Chemical and physical properties of metal nanoparticles (NPs) are determined not only by the synthesis method used to prepare them but also by the experimental conditions under the generation process takes place. One of the most important factors in the synthesis of NPs is the presence of complexing agents in the media that can change the size and shape of the NPs. The significant role of different complexing agents (cyanide, ethylenediaminetetraacetic acid, and ethylenediamine) in the electrochemical formation of silver nanoparticles (AgNPs) has been analyzed by time‐resolved Raman spectroelectrochemistry. Electrochemical and spectroscopic responses, obtained simultaneously, provide suitable information about the changes that occur on the platinum electrode surface during the AgNPs electrodeposition. The morphology of AgNPs has been analyzed by ultraviolet–visible absorption spectroelectrochemistry, providing additional information and a detailed view of the electrodeposition process. The influence of the complexing agent used to generate AgNPs has been studied analyzing the surface‐enhanced Raman scattering (SERS) effect of the modified substrate. Raman spectra show different SERS behavior depending on the complexing agent and therefore on the AgNPs generated. The relationship between SERS signals and the morphology of AgNPs has been displayed by scanning electron microscopy images. Time‐resolved Raman spectroelectrochemistry confirms that chemical mechanism is necessary for SERS effect.

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Section: Methodssupporting

confidence: 69%

Electrodeposition of silver nanoparticles in the presence of different complexing agents by time‐resolved Raman spectroelectrochemistry

Ibáñez

Izquierdo

Fernandez-Blanco

et al. 2017

J Raman Spectroscopy

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“…A characteristic Raman spectrum of the SWCNTs (Fig. 3, red line) shows mainly four bands: the radial breathing mode (RBM), the disorder induced mode (D), the tangential displacement mode (G) and the high frequency two phonon mode (G') [47][48][49][50][51][52]. These bands are completely similar before and after preparation of the film.…”

Section: Preparation Of Free-standing Swcnt Electrodesmentioning

confidence: 69%

“…Spectroscopic characterization was performed by Raman spectroscopy, due to the valuable information on the vibrational properties of nanotubes that this technique provides [47][48][49][50][51]. It allows us to verify that the integrity of the SWCNTs is not affected during the electrode fabrication.…”

Section: Preparation Of Free-standing Swcnt Electrodesmentioning

confidence: 99%

Spectroelectrochemistry at free-standing carbon nanotubes electrodes

Ibáñez

Garoz‐Ruiz

Plana

et al. 2016

Electrochimica Acta

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General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available: http://www.bristol.ac.uk/pure/about/ebr-terms 1. ISE member. Abstract.A versatile and low-cost methodology for fabricating free-standing carbon nanotubes (CNT) electrodes for electrochemical and spectroelectrochemical applications is described. The uniformity, flexibility and resistance to bending of these films make them one of the most interesting membranes in a wide range of applications. CNT electrodes were characterized by Raman spectroscopy and scanning electron microscopy and their electrochemical performance was assessed employing various redox species such as ferrocenemethanol, hexacyanoferrate (II) and dopamine. Free-standing single-walled CNT electrodes exhibit good conductivity and transparency to UV-Vis radiation, making them suitable as optically transparent electrodes. This is exemplified by monitoring, using UV-Vis absorption spectroelectrochemistry, the electrodeposition of gold nanoparticles (AuNPs) on one face of the free-standing CNT electrodes, while the other face remained unmodified.

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“…Most of this extensive research comes from the groups of Dunsch and Kavan, [166][167][168][169][170][171][172][173][174][175][176][177] although some work has been performed elsewhere. [178][179][180][181][182][183] A related field is the investigation of graphene. 162,163,[184][185][186][187][188][189][190] Another popular application of Raman-SEC within material science is to get more insight on conductive polymers, studied by the group of Malinauskas [141][142][143][144][145][146]191 and others.…”

Section: Future Perspectivementioning

confidence: 99%

Spectroelectrochemistry, the future of visualizing electrode processes by hyphenating electrochemistry with spectroscopic techniques

Lozeman

Führer

Olthuis

et al. 2020

Analyst

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The combination of electrochemistry and spectroscopy, known as spectroelectrochemistry (SEC), is an already established approach. By combining these two techniques, the relevance of the data obtained is greater than what it would be when using them independently. A number of review papers have been published on this subject, mostly written for experts in the field and focused on recent advances. In this review, written for both the novice in the field and the more experienced reader, the focus is not on the past but on the future. The scope is narrowed down to four techniques the authors claim to have the most potential for the future, namely: infrared spectroelectrochemistry (IR-SEC), Raman spectroelectrochemistry (Raman-SEC), nuclear magnetic resonance spectroelectrochemistry (NMR-SEC) and, perhaps slightly more controversial but certainly promising, electrochemistry mass-spectrometry (EC-MS).

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Dynamic Raman Spectroelectrochemistry of Single Walled Carbon Nanotubes modified electrodes using a Langmuir-Schaefer method

Cited by 26 publications

References 37 publications

Electrodeposition of silver nanoparticles in the presence of different complexing agents by time‐resolved Raman spectroelectrochemistry

Electrodeposition of silver nanoparticles in the presence of different complexing agents by time‐resolved Raman spectroelectrochemistry

Spectroelectrochemistry at free-standing carbon nanotubes electrodes

Spectroelectrochemistry, the future of visualizing electrode processes by hyphenating electrochemistry with spectroscopic techniques

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