Frontiers in Chemistry | Electrochemistry section | New and Recent Articles

Growing energy consumption and concerns regarding the effects of global warming are driving development of greener energy alternatives. Green hydrogen production and consumption are essential in modern energy conversion and storage. The progression of water splitting technologies for sustainable hydrogen production relies on the development of efficient and cost-effective electrocatalysts for the…

The core advantages of rechargeable aqueous metal-ion batteries lie in their high safety and low cost. Their application prospects primarily focus on two key directions: first, serving as a secure grid-scale energy storage solution for renewable energy integration and peak shaving; second, providing irreplaceable safety assurance in specialized fields, such as, wearable devices, medical implant e…

Abstract For aqueous lithium-ion batteries (A-LIBs), the hydrogen evolution reaction (HER) poses a significant challenge, as it competes with the primary electrochemical processes of the anode, resulting in capacity loss and reduced cycling stability. In this study, we investigate the use of fluorine-based additives in anodes to mitigate HER in LIBs with aqueous electrolytes including low or high…

Due to the demand for fast-charging consumer electronics and electric vehicles, high power density is essential for advanced electrochemical energy storage devices. As an electrochemical energy storage device characterized by both excellent capacity and power performance, supercapacitors hold significant importance for technological development. Recent studies in materials science and electrochem…

Abstract The increasing threat of bacterial infections to human health has positioned the development of antibacterial materials as a critical global research priority. Recently, hydroxyapatite (HAP), which is chemically similar to the main components of bone and teeth, has attracted considerable attention as a promising antibacterial material due to its ability to inhibit bacterial adhesion and …

Abstract Precise modulation of the pore structure in activated carbon can further enhance the capacitance performance of supercapacitors. As a carbonaceous precursor, phenol-formaldehyde resin (PR) plays a dual role in both carbon deposition and activation for pore regulation; however, the activation mechanism governing its pore-tuning effect remains unclear. In this study, trace PR with a mass r…

Abstract Electrochemical water splitting is a promising solution to energy challenges, yet the kinetically sluggish oxygen evolution reaction (OER) at the anode demands highly active and cost-effective catalysts. Herein, we develop a facile one-pot hydrothermal oxidation strategy to simultaneously achieve the oxidative cleavage of petroleum coke into nanoscale carbon dots (HO-CDs) and the in situ…

Abstract FexCo1-x thin films were electrodeposited from a choline–urea deep eutectic solvent (DES) containing Fe3+ and Co2+ ions under ambient conditions. Anomalous co-deposition was observed, with Fe preferentially depositing over Co. With higher cathodic potential, the film’s morphology shifted from smooth to nodular. X-ray diffraction (XRD) analysis showed iron oxide impurities at lower overpo…

Abstract The growing global demand for clean and sustainable energy has intensified the development of novel technologies capable of harnessing naturally available resources. Among these, blue energy, referring to the power generated from the mixing of waters with different salinities, has emerged as a promising yet underutilized source. This perspective presents a comprehensive synthesis of rece…

Abstract Lanthanum oxide (La2O3) nanoparticles-embedded polyamide 6 nanofiber membranes were electrospun using hexafluoroisopropanol (HFIP) as the solvent. Unlike other solvents such as formic acid and an acetone: trifluoroacetic acid (ace: TFA) mixture, HFIP allowed La2O3 nanoparticles to remain well-suspended without altering their composition. Various material characterizations confirmed La2O3…

Abstract Supercapacitors (SCs) are high-performance electrochemical energy storage devices, and their performance hinges on the electrode materials. 2D MXene nanomaterials, with their excellent conductivity, tunable interlayer spacing, and rich surface chemistry, have emerged as highly promising electrode materials for SCs. However, the capacitive performance of intrinsic MXene fails to meet appl…

Abstract The electrochemical nitrate reduction reaction (NITRR) offers a sustainable route for ammonia synthesis and environmental remediation but faces challenges such as sluggish kinetics and competing hydrogen evolution. This study aims to address these limitations by designing a Cu/molybdenum phosphide (MoP) heterostructure catalyst through one-pot calcination, which integrates Cu nanoparticl…

Abstract Rechargeable aluminum-ion batteries (AIBs), as novel energy storage systems featuring low-cost, high-energy density, and superior safety, demonstrate promising potential as a next-generation battery technology. However, the lack of high-performance cathode materials remains a critical barrier to practical implementation. In this study, highly crystalline cobalt sulfide (Co9S8) nanopartic…

Abstract The growing demand for efficient energy storage has intensified interest in pseudocapacitive materials, known for their high-power density, rapid charge–discharge capabilities, and tunable physicochemical properties. This review explores the foundational principles and evolution of pseudocapacitive materials, emphasizing recent strategies to improve their electrochemical performance in s…

The journal retracts the 31 May 2021 article cited above. Following publication, the authors contacted the Editorial Office to request the retraction of the cited article, stating that the data in the publication is not reliable. Specifically, the authors identified errors in Figures 6 and 7, involving the misrepresentations of %RA values for bacterial strains. This inconsistency affected the dis…

Abstract Glucose oxidase (GOx), as a molecular recognition element of glucose biosensors, has high sensitivity and selectivity advantages. As a type of biosensor, the glucose oxidase electrode exhibits advantages such as ease of operation, high sensitivity, and strong specificity, promising broad application prospects in biomedical science, the food industry, and other fields. In recent years, wi…

The second volume of the Defect Chemistry in Electrocatalysis series continues to explore the vital role of defect engineering in advancing electrocatalytic technologies (Yan et al., 2022a). Electrocatalysis is essential to the operation of devices used for electrochemical energy storage and conversion. Because the efficiency of these systems is heavily dependent on the kinetics of electrochemica…

Abstract CO2 electrochemical reduction reactions (CO2ERR) has shown great promise in reducing greenhouse gas emissions while also producing useful chemicals. In this contribution, we describe the CO2ERR at different catalysts using 1-ethyl-3-methylimidazolium ethyl sulfate [emim][EtSO4] ionic liquid (IL) as a solvent and as a supporting electrolyte. CO2ERR occurs at Ag and Cu catalysts at a lower…

Abstract While achieving remarkable commercial success, lithium-ion battery (LIBs) carry substantial safety risks associated with potential thermal runaway during widespread applications. When operated under complex working conditions, particularly in high-temperature and high-pressure environments, the internal galvanic reactions within these batteries may escalate uncontrollably. During the ear…

Abstract Exosomes, released from diverse cells as nanoscale lipid bilayer vesicles, mediate intercellular communication and participate in various physiological and pathological processes. Thereinto, tumor-derived exosomes (T-EXOs) with molecular cargoes of parent tumor cells act as attractive biomarkers for tumor liquid biopsy. The amount of T-EXOs and their levels of contained specific proteins…