Sonoelectroanalysis: An Overview

Metters, Jonathan P.; Kruusma, Jaanus; Banks, Craig E.

doi:10.1002/9781119967392.ch3

Cited by 3 publications

(2 citation statements)

References 91 publications

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“…Ultrasonic vibration is used as a tool to generate acoustic cavitation which helps in degassing and improves mass transport toward the electrode surface. [25,26] The removal of insulating hydrogen bubbles between the electrodes due to the exerted pressure favors the protonic adsorption at the electrode site. This results in enhanced current densities and lower overpotential value under vibration, as shown in Figure S14 in the Supporting Information.…”

Section: Qd/2d Film In Figuresmentioning

confidence: 99%

Exciton Manipulation for Enhancing Photoelectrochemical Hydrogen Evolution Reaction in Wrinkled 2D Heterostructures

et al. 2023

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2D materials’ junctions have demonstrated capabilities as metal‐free alternatives for the hydrogen evolution reaction (HER). To date, the HER has been limited to heterojunctions of different compositions or band structures. Here, the potential of local strain modulation based on wrinkled 2D heterostructures is demonstrated, which helps to realize photoelectrocatalytically active junctions. By forming regions of high and low tensile strain in wrinkled WS2 monolayers, local modification of their band structure and internal electric field due to piezoelectricity is realized in the lateral direction. This structure produces efficient electron–hole pair generation due to light trapping and exciton funneling toward the crest of the WS2 wrinkles and enhances exciton separation. Additionally, the formation of wrinkles induces an air gap in‐between the 2D layer and substrate, which reduces the interfacial scattering effect and consequently improves the charge‐carrier mobility. A detailed study of the strain‐dependence of the photocatalytic HER process demonstrates a 2‐fold decrease in the Tafel slope and a 30‐fold enhancement in exchange current density. Finally, optimization of the light absorption through functionalization with quantum dots produces unprecedented photoelectrocatalytic performance and provides a route toward the scalable formation of strain‐modulated WS2 nanojunctions for future green energy generation.

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Section: Qd/2d Film In Figuresmentioning

confidence: 99%

Exciton Manipulation for Enhancing Photoelectrochemical Hydrogen Evolution Reaction in Wrinkled 2D Heterostructures

et al. 2023

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“…A wide range of application of sonoelectrochemistry was reviewed by Garcia et al [ 7 ] and references therein. For instance, sonoelectroanalysis [ 20 , 58 , 59 ], sonoelectrochemical environmental remediation [ 57 , 60 ], or sonoelectrochemistry in the synthesis of nanomaterials [ 61 ] are currently very active research areas.…”

Section: Final Remarksmentioning

confidence: 99%

In Situ Coupling of Ultrasound to Electro- and Photo-Deposition Methods for Materials Synthesis

Magdziarz

Colmenares

2017

Molecules

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This short review provides the current state-of-the-art of in situ coupling of ultrasound to chemical deposition methods. Synergetic action of ultrasound and light radiation or electrical fields may result in new powerful methodologies, which include sonophotodeposition and sonoelectrodeposition processes. The effect of ultrasound is explained on the basis of different physical mechanisms emerging from cavitation phenomenon. Some possible mechanisms of the interactions between ultrasound and photochemical and electrochemical processes are discussed here. The application of sonophotodeposition and sonoelectrodeposition as green energy sources in the syntheses of different nanomaterials is also reviewed.

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Electroanalytical overview: the use of sonoelectroanalysis

Crapnell,

Bernalte,

et al. 2024

J Solid State Electrochem

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The synergy of power ultrasound (20–100 kHz) with electrochemistry provides a powerful approach, termed “sonoelectrochemistry”. A useful method that overcomes the use of classical laboratory–based analytical instrumentation is the association of power ultrasound with electroanalytical chemistry, termed “sonoelectroanalysis”. In this overview, we explore the use of sonoelectroanalysis which builds upon Professor Frank Marken’s endeavours with Professor Richard G. Compton. We focus upon fundamental sonoelectrochemical approaches before reviewing the use of sonoelectroanalysis and its enhanced sensitivity and selectivity towards analytes, with an emphasis upon its use within difficult real-world media.

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Sonoelectroanalysis: An Overview

Cited by 3 publications

References 91 publications

Exciton Manipulation for Enhancing Photoelectrochemical Hydrogen Evolution Reaction in Wrinkled 2D Heterostructures

Exciton Manipulation for Enhancing Photoelectrochemical Hydrogen Evolution Reaction in Wrinkled 2D Heterostructures

In Situ Coupling of Ultrasound to Electro- and Photo-Deposition Methods for Materials Synthesis

Electroanalytical overview: the use of sonoelectroanalysis

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