A charge transport prediction method for metal electrode-aqueous electrolyte interface to guide the design of metal batteries

Wu, Peng; Senevirathna, Hasanthi L.

doi:10.1016/j.electacta.2022.140051

Cited by 4 publications

(3 citation statements)

References 44 publications

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“…In order to forecast charge transport in photoelectrochemical systems that incorporate electrode entropy, electrolyte chemistry and electronic structures, our team is now extending its existing charge transport prediction models for general electrochemical cells to photo-electrochemical systems. 38…”

Section: Resultsmentioning

confidence: 99%

Urea-assisted synthesis of carbon-doped BiNbO₄ with oxygen vacancies and visible light photocatalytic applications

et al. 2022

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Section: Resultsmentioning

confidence: 99%

Urea-assisted synthesis of carbon-doped BiNbO₄ with oxygen vacancies and visible light photocatalytic applications

et al. 2022

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“…31 Additionally, the interface between the electrode and the electrolyte also plays an important role in charge transport processes because the interfacial structure can positively or negatively affect the electrical current flow across this interface. 32 More important to charge transport in charge-functional systems are the mesoscale architectural factors, such porosity, tortuosity and domain connectivity that determine the three-dimensional conducting pathways for ionic/electronic transport. For example, the establishment of the conductive network constructs percolating pathways for fast electronic conduction, which is indispensable for the complete utilization of redox-active moieties that interact with water pollutants and ionic species to be recovered.…”

Section: Controlling Charge Functions In Electronic and Electrochemic...mentioning

confidence: 99%

Review—Understanding and Controlling Charge Functions in Materials for Electrochemically Mediated Water Treatment

Shen¹,

Mao²

2022

J. Electrochem. Soc.

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Water management by electrochemical means has attracted increasing attention due to the high energetic efficiency and significantly improved water treatment efficacy of related emerging technologies. Charge functions in electronic and electrochemical materials dictate the overall water treatment performance such as selectivity, operation stability, removal capacity, and rate. Here, we elucidate the design principles of charge-functional materials for electrochemically mediated water treatment by considering fundamental performance-governing processes, including charge transport, surface adsorption, bulk ion insertion, and (photo)electrocatalysis. Furthermore, we highlight the recent development of in situ operando imaging tools for probing these critical processes that occur during water treatment, with a particular focus on functional imaging techniques capable of probing local charge-functional parameters (e.g., charge carrier diffusivity, pollutant adsorption affinity, and redox reaction rate) to establish local structure-function relationships. We conclude this review by pointing out the opportunities and challenges that warrant future research in order to further improve the performance and scale-up ability of electrochemical water treatment technologies in the broader context of the energy-environment nexus toward a sustainable zero-carbon future.

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“…With this known empirical D, the model can be used to describe complex EDL structures that are challenging to be characterized directly using the standard PB or BAO methods. The generalized model presented here offers a new tool to study EDL in a wide range of applications in applied physics and devices [54,55]. With the recent development of threedimensional AFM imaging technique which provides detailed EDL mapping to atomic level [56], more comprehensive understanding on the relationship between the experiments and our model can be explored in future works.…”

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confidence: 97%

Modeling of electric double layer at solid-liquid interface with spatial complexity

Chua¹,

Kee²,

Ang³

et al. 2022

Preprint

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Electrical double layer (EDL) is formed when an electrode is in contact with an electrolyte solution, and is widely used in biophysics, electrochemistry, polymer solution and energy storage. Poisson-Boltzmann (PB) coupled equations provides the foundational framework for modeling electrical potential and charge distribution at EDL. In this work, based on fractional calculus, we reformulate the PB equations (with and without steric effects) by introducing a phenomenal parameter D (with a value between 0 and 1) to account for the spatial complexity due to impurities in EDL. The electrical potential and ion charge distribution for different D are investigated. At D = 1, the model recover the classical findings of ideal EDL. The electrical potential decays slowly at D <1, thus suggesting a wider region of saturated layer under fixed surface potential in the presence of spatial complexity. The fractional-space generalized model developed here provides a useful tool to account for spatial complexity effects which are not captured in the classic full-dimensional models.

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A charge transport prediction method for metal electrode-aqueous electrolyte interface to guide the design of metal batteries

Cited by 4 publications

References 44 publications

Urea-assisted synthesis of carbon-doped BiNbO₄ with oxygen vacancies and visible light photocatalytic applications

Urea-assisted synthesis of carbon-doped BiNbO₄ with oxygen vacancies and visible light photocatalytic applications

Review—Understanding and Controlling Charge Functions in Materials for Electrochemically Mediated Water Treatment

Modeling of electric double layer at solid-liquid interface with spatial complexity

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A charge transport prediction method for metal electrode-aqueous electrolyte interface to guide the design of metal batteries

Cited by 4 publications

References 44 publications

Urea-assisted synthesis of carbon-doped BiNbO4 with oxygen vacancies and visible light photocatalytic applications

Urea-assisted synthesis of carbon-doped BiNbO4 with oxygen vacancies and visible light photocatalytic applications

Review—Understanding and Controlling Charge Functions in Materials for Electrochemically Mediated Water Treatment

Modeling of electric double layer at solid-liquid interface with spatial complexity

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Product

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Urea-assisted synthesis of carbon-doped BiNbO₄ with oxygen vacancies and visible light photocatalytic applications

Urea-assisted synthesis of carbon-doped BiNbO₄ with oxygen vacancies and visible light photocatalytic applications