Electrochemistry - Science topic

Dear Colleagues, Corrosion studies have attracted considerable interest in the areas of materials chemistry and industrial chemistry, as it affects the direct and indirect costs of industry, leading to huge economic setbacks due to the need for repair, maintenance, and even shutdowns due corrosion damage. This new volume is a comprehensive resource...

In this work, the electrochemical determination of clioquinol on the electrode, modified by the squaraine dye complex with copper sulfide nanoparticles, is described. The electroanalytical process begins with the analyte hydrolysis, followed by its hybrid oxidation by the pyridinic nitrogen atom and the hydroxyquinole moiety. The indirect electropo...

An electrochemical process for adamsite and lewisite chemical warfare agents has been proposed for the first time. The process is given by single or double membrane electrolysis and is carried out to remove the warfare agents from the wastewater. From the theoretical analysis of this system, it has been possible to conclude that vanadium oxyhydroxi...

Battery health evaluation and management are vital for the long-term reliability and optimal performance of lithium-ion batteries in electric vehicles. Electrochemical impedance spectroscopy (EIS) offers valuable insights into battery degradation analysis and modeling. However, previous studies have not adequately addressed the impedance uncertaint...

A novel method for synthesizing carbon-containing graphene nanosheets (CCG) from corn cob (CC) waste was developed.

Environmental and health issues have created the urgent need to transition from CrO₄²-legacy to more environment-friendly CC. The various international protocols on CrO₄²-have restricted its usage, thus opening a floodgate of research activities on its urgent replacements. The current study which examines HSCE and V salt takes a cue from earlier ou...

In this work, the possibility of lugduname and perillartin electrochemical determination by cathodic process has been given. Both substances are reduced, forming the amino group, which may become protonated in an acidic medium, affecting the DEL ionic force and thereby affecting the analytical signal interpretation. Although even in the acidic medi...

The possibility of sucralose and lugduname electrochemical determination in beverages has been analyzed for the first time from a theoretical point of view. It has been shown that the electrochemical determination of sucralose and lugduname may be carried out efficiently by an anodic process due to the presence of electroactive groups in both subst...

A book written in Korean for teenagers and general public on Li-ion battery. Basic concept of energy including physical and chemical energy are explained with real life examples. It is shown that oxidation-reduction reaction is the key chemical reaction producing electrical energy when it is conducted in a device called 'Electrochemical cell'. Mean...

We introduce an efficient method for simulating Coulomb systems confined by conducting planar surfaces. The new approach is suitable for both coarse-grained models and all-atom simulations of ionic liquids between polarizable metal electrodes. To demonstrate its efficiency, we use the new method to study the differential capacitance of an ionic liq...

An electrochemical cascade radical cyclization of 2‐aryl‐N‐acryloyl indoles with sodium trifluoromethanesulfinate as a coupling partner has been explored, which afforded the unexpected bis‐trifluoromethylated indole[2,1‐a]isoquinolines as products. Experimental results and DFT calculations disclose that this reaction involves trifluoromethylation‐t...

The electrochemical conversion of low‐concentration CO2 feedstock to value‐added chemicals and fuels is a promising pathway for achieving direct valorization of waste gas streams. However, this is challenging due to significant competition from the hydrogen evolution reaction (HER) and lowered CO2 reduction (CO2R) kinetics as compared to systems th...

Sb2S3 has excellent photovoltaic properties, but the performance of its photovoltaic devices still needs to be improved. The main issues hindering its photovoltaic performance are the poor carrier transport ability and the significant charge recombination. Doping strategies play a key role in addressing these issues. This study investigates the eff...

Electrochemical reduction reaction of CO2 (eCO2RR) to produce valuable chemicals offers an attractive strategy to solve energy and environmental problems simultaneously. We have mapped out entire reaction pathways of eCO2RR to CO on Cu(100), including all intermediates and transition states using first‐principles simulations. To accurately account...

Electrochemical Drilling (ECD) is an unconventional method aimed at creating holes in metallic workpieces characterized by high hardness and complex structures. This study analyzes the influence of process variables, including machining voltage, electrolyte concentration, electrode rotational speed, electrolyte flushing pressure, and workpiece mate...

The electrochemical CO2 reduction reaction (CO2RR) is a promising technology for the utilization of captured CO2. Though systems using aqueous electrolytes is the state‐of‐the‐art, CO2RR in aprotic solvents are a promising alternative that can avoid the parallel hydrogen evolution reaction (HER). While system parameters, such as electrolyte composi...

Unlocking superior Mg-ion cells with good cycling performance as a future battery candidate is now crucial. However, structural instability is mainly reported in current oxide frameworks. Additionally, poor diffusion kinetics are typical due to the affinity of Mg²⁺ ions to interact with oxide anions. Herein, NMoP-0 glass was obtained according to t...

The electrochemical reduction of carbon dioxide (CO2) presents an opportunity to close the carbon cycle and obtain sustainably sourced carbon compounds. In recent years, copper has received widespread attention as the only catalyst capable of meaningfully producing multi‐carbon (C2+) species. Notably carbon monoxide (CO) can also be reduced to C2+...

The electrochemical nucleation of MoS 2 from a mixture of sodium molybdate dihydrate (Na 2 MoO 4 ·2H 2 O) and sodium sulphide (Na 2 S·xH 2 O) aqueous solution on Cu substrate has been investigated. The nucleation and formation of molybdenum sulphide were investigated employing cyclic voltammetry and chronoamperometry studies. The experimental i–t c...

Lithium bis(fluorosulfonyl)imide-based liquid electrolytes are promising for realizing high coulombic efficiency and long cycle life in next-generation Li-metal batteries. However, the role of anions in the formation of the solid–electrolyte interphase remains unclear. Here we combine electrochemical analyses and X-ray photoelectron spectroscopy me...

Over the past two decades, the CISS effect has manifested in electrochemistry, water splitting, photoluminescence, and light-emitting diodes. Recently, it has been recognized as a possible key resource in quantum information technologies based on electron spin. Usually, it is observed in organic molecules composed of light atoms, which allows for a...

Ligand protected gold nanoclusters have been proposed for electrochemical CO2 reduction (eCO2R) as an alternative to polycrystalline catalysts, showing higher selectivity control due to the tailored composition and precise microenvironment. Here, two gold cluster families are studied with different staple motifs (Au25(SR)18 and Au144(SR)60, where S...

Fe anodes are emerging as cost‐effective components in long duration storage applications, with a benefit being the high natural abundance of Fe. Additive and electrode design have advanced the performance of Fe electrodes, but a more precise understanding of the electrode formation process and failure mechanisms is important for continued optimiza...

Resumo Após a realização de reparos localizados, costuma-se observar o ressurgimento de pontos de corrosão na região adjacente à área reparada, situação usualmente denominada ânodo incipiente. Embora tenham sido feitas diversas pesquisas a respeito do tema, ainda restam controversos aspectos em relação às suas causas, localização e progressão no te...

Tetrahedral, pyramidal, and octahedral metal‐oxygen coordinated ligands are fundamental components in all metal‐oxide structures. Understanding the impacts of their spatiotemporal behaviors during electrochemical oxidation is crucial for diverse applications, yet remains unsolved due to challenges in designing model oxides and conducting operando c...

This article aims to investigate the effects of various process parameters, including electrolyte concentration, applied voltage, tool feed rate, and pulse frequency, on the average surface roughness (Ra) and roundness error (RE) during micro-electrochemical drilling of nickel-based superalloy (Inconel 625). The conducted experimentation has been p...

Recently, research all over the world is being carried out to develop eco‐friendly supercapacitors (SCs) using biopolymeric materials like proteins or polysaccharides. These polymers offer these innovative energy storage devices' sustainability and recyclability, flexibility, lightweight, and steady cycling performance—all crucial for utilizations...

The development of efficient and durable electrocatalysts for the acidic oxygen evolution reaction (OER) is essential for advancing renewable hydrogen energy technology. However, the slow deprotonation kinetics of oxo‐intermediates, involving the four proton‐coupled electron steps, hinder the acidic OER progress. Herein, a RuTiOx solid solution ele...

Flexible solid‐state supercapacitors (FSSCs) have garnered significant attention due to their advantages, including lightness, adaptability, enhanced safety, and extensive operational potential windows. These features make them highly suitable as energy storage devices for the next generation of portable and flexible electronics. The recent surge i...

Rechargeable zinc‐air batteries (RZABs) are considered as one of the most promising clean energy device due to their abundant resources, low cost and environmental friendliness. However, their energy efficiency and cycle life are far from satisfactory due to the poor activity and stability of bi‐functional electrocatalyst in air cathode. In this wo...

Electrochemical urea synthesis under ambient conditions offers a promising alternative to traditional methods, yet suffers from inefficient production due to poor binding of reactants to the catalyst surface, leading to competitive pathways. In this study, we report an electrochemical route for urea synthesis by dual reduction of CO2 and N2 gases u...

Carbon nanotubes (CNTs) have many excellent properties that make them ideally suited for use in lithium‐ion batteries (LIBs). In this review, the recent research on applications of CNTs in LIBs, including their usage as freestanding anodes, conductive additives, and current collectors, are discussed. Challenges, strategies, and progress are analyze...

An eco‐friendly electrochemical halogenation of 2‐amino‐1,4‐naphthoquinones has been developed. The new mild and energy efficient methodology comprises sustainable features like oxidant free and double role of the halogen source as electrolyte, originating twenty‐six amino‐halogenated naphthoquinoidal derivatives in good yields under mild condition...

Atomically precise copper nanoclusters (Cu NCs) exhibit significant potential as catalysts for the electrocatalytic reduction of CO2. However, the range of products achievable with these NCs has been somewhat constrained. This study presents an innovative design strategy to enhance the catalytic activity of Cu NCs by engineering their active sites....

Electrochemical aging of electrode materials usually leads to capacity decay and voltage drop in conventional rocking‐chair batteries. Here we report an anomalous electrochemical aging strengthening behavior of Ti3C2Tx MXene electrode in a dual‐ion battery, whose capacity/power grows under cycling and eventually reaches an optimal state once the co...

The electrochemical sulfion oxidation reaction (SOR) is highly desirable to treat sulfion-rich wastewater and achieve energy-saving hydrogen production when coupled with the cathodic hydrogen evolution reaction (HER). Herein, we propose a thermodynamically favorable SOR to couple with the HER, and develop vanadium-doped nickel phosphide (V-Ni2P) na...

CO2 capture technology can mitigate greenhouse gas emissions and global warming. CO2 capture driven by electrochemical reactions is attractive because the operation is carried out at normal temperature and pressure and involves a simple input system using electrical energy. Although promising metal complexes with high CO2 fixation performance have...

Organic molecule in solutions is the energy storage unit in the organic redox flow batteries (ORFBs), of which the aggregation is acknowledged pivotal but has been rarely investigated. By establishing a pyridinium library, the manipulation over the aggregation in solutions is investigated at the molecular level. Both theoretical calculations and ph...

Electrochemical regeneration is very suitable approach for industrial effluents, but it suffers from low regeneration efficiency due to side reactions like oxygen evolution, as well as oxidation of the adsorbent. Utilizing PVA films through a solution casting method, incorporating varying concentrations of Cr₂O₃ nanoparticles to evaluate their effe...

This research delves into the potential of expired Glavox tablets, containing Amoxicillin and Clavulanic acid, as environmentally friendly substances to inhibit corrosion on A36 carbon steel in solutions of 1M HCl and 3.65 wt% NaCl. The findings from weight loss experiments in 1M HCl indicated a decrease in the corrosion rate, dropping from 1.24 mm...

Doxycycline (DOXY), a widely used antibiotic during COVID-19, was overused, leading to concerns about contamination of aquatic environments and environmental problems. The present study used the Ti/TiO2-RuO2-IrO2 electrode for DOXY’s electrochemical oxidation (EO) in batch and once-through continuous mode operations. Process parameters were optimiz...

Electrochemical liquid phase transmission electron microscopy (EC‐LPTEM) is an invaluable tool for investigating the structural and morphological properties of functional materials in electrochemical systems for energy transition. Despite its potential, standardized experimental protocols and a consensus on data interpretation are lacking, due to a...

Strain engineering is an effective approach for modulating the activity of single‐atom catalysts, yet the underlying mechanisms are not fully understood. This review focuses on the strain effects on single‐atom catalysts, detailing the geometric structure distortion and electronic structure changes of the active sites with different strains. It als...

Herein, an electroreductive aryl radical enabled 5‐exo‐dig cyclization of N‐cyano‐2‐halobenzamides is presented, providing a convenient route for the synthesis of a variety of 3‐iminoisoindolin‐1‐ones in 30–75% yields. Simply by employing zinc plate instead of graphite rod anode, the products of the electrosynthesis are switched to diverse 3‐aminoi...

Electrochemical carbon dioxide reduction to n‐propanol, a high‐energy‐density C3 chemical, presents a promising method for the long‐term storage of renewable electricity. However, the C1‐C2 coupling step, crucial for C3 conversion, suffers from low selectivity and sluggish conversion rate. In this study, a strategy is proposed to regulate the adsor...

FeCrMoCB amorphous coatings were prepared by detonation spraying technology. The coating microstructure, elements distribution, microhardness distribution, wear behaviors under various temperatures and the electrochemical corrosion resistance were discussed, respectively. It was found the amorphous content of the detonation sprayed Fe-based amorpho...

Our previous work has established that micron resolution photolithography can be employed to make microsquare nanoband edge electrode (MNEE) arrays. The MNEE configuration enables systematic control of the parameters (electrode...

Cellulose nanofiber (CNF) represents a promising support material to strengthen the mechanical property of free‐standing supercapacitor electrodes comprised of conducting nanomaterials. Although efforts have been focused on improving the performance of the CNF‐supported electrode, the percolation of capacitive nanomaterials within the insulating CN...

Electrocatalytic carbon dioxide (CO2) conversion into valuable chemicals paves the way for the realization of carbon recycling. Downsizing catalysts to single‐atom catalysts (SACs), dual‐atom catalysts (DACs), and sub‐nanocluster catalysts (SNCCs) has generated highly active and selective CO2 transformation into highly reduced products. This is due...

Electrochemical glucose sensing is vital for biomedical applications, particularly in diabetes management and continuous health monitoring. Among electrochemical sensors, non-enzyme-based sensors offer advantages such as cost-effectiveness, robust anti-interference capabilities, and environmental stability compared to enzyme-based ones. This study...

Ammonia has attracted considerable interest as a hydrogen carrier that can help decarbonize global energy networks. Key to realizing this is the development of low temperature ammonia fuel cells for the on‐demand generation of electricity. However, the efficiency of such systems is significantly impaired by the sluggish ammonia oxidation reaction (...

Electrochemical technology presents a promising approach for phosphorus recovery from wastewater. Nevertheless, its application in industry is hindered by relatively low phosphorus recovery efficiency, high energy consumption and complex reactor configurations. In this study, a coupled electrolysis and microfiltration system was designed for phosph...

Physics-based models have proven to be effective tools for predicting the electrochemical behavior of Li-ion batteries. Among the various physics-based models, the Doyle-Fuller-Newman (DFN) model has emerged as the most widely employed. In response to certain limitations of the DFN model, the multiple particle-Doyle-Fuller-Newman (MP-DFN) model was...