ELECTROCHEMICAL SOC INC
Abstract Homogeneous Rhodium-based catalysts are essential for hydroformylation because of their high activity, but recovering these valuable critical metals from spent reaction streams remains difficult using conventional energy- and chemical-intensive methods. Here, the direct recovery of the spent Rh from a post-reaction hydroformylation stream is achieved via electrowinning…
Abstract Porous electrode theory (PET) provides essential insights into electrochemical states, but its computational complexity hinders real-time control and obscures scaling relations. To bridge the gap between high-fidelity simulations and reduced-order models, we present a framework of scaling analysis and analytical approximations. By assuming high-performance electrodes m…
Abstract Eutectic solvents are emerging as sustainable alternatives to traditional organic solvents, offering tunable properties and a lower environmental footprint. While trace water is often unavoidable, intentionally adding water can reduce viscosity and lower overall costs. This study addresses the kinetic and viscosity limitations of alkylammonium halide-based eutectic ele…
The advanced coupled multi-electrode array (CMEA) technique provides spatiotemporal insights into electrochemical processes. This study used the CMEA technique to monitor the distribution of anodic and cathodic activity during galvanic interactions between copper and steel. An important parameter influencing the intensity of galvanic corrosion is the anode-to-cathode area ratio…
Abstract Polypropylene-infused (PP) Novel Ni-SiC-TiO₂ (First time reported ) nano-engineered composite Superhydrophobic (SH) coatings were fabricated on surgical stainless steel via electro-assisted co-deposition to obtain superhydrophobic and corrosion-resistant surfaces for biomedical applications. The electrodeposited coatings developed a hierarchical micro/nanostructure, in…
Abstract This research explores the advancement of innovative and highly scalable continuous dry coating processes for next-generation batteries by integrating machine learning (ML) / artificial intelligence (AI) with intelligent quality assurance and process monitoring. The study enhances solvent-free electrode manufacturing processes, specifically extrusion and dry transfer, …
Abstract Liquid Organic Hydrogen Carriers (LOHCs) are promising for hydrogen and energy storage but require endothermic catalytic dehydrogenation. An alternative approach is a regenerable liquid-fed fuel cell which spontaneously converts an organic carrier from its hydrogen-rich to hydrogen-lean form while generating electrical power. The anodic electrooxidation of cyclohexane,…
Abstract Peukert exponents are widely used to summarize battery rate capability, yet they obscure the transition from nearly uniform intercalation across a porous cathode to strongly nonuniform through-plane current distribution. Here we derive an analytical Wagner-number criterion for this transition from a one-dimensional conduction-kinetics model. The ionic Wagner number gov…
Abstract For battery energy storage systems with series‑parallel system (SPS), accurately estimating the capacity of each parallel pack in the SPS is crucial for improving the overall system efficiency and capacity utilization, and it serves as a foundational yet significant research topic for estimating system-level states (state of charge, state of energy, and state of health…
Abstract Understanding electric fields at electrode/electrolyte interfaces strongly influences electrocatalytic processes, yet their characterization at high current densities is often hindered by gas evolution that interferes with physical and electromagnetic probes. Herein, a custom electrochemical flow cell is presented that suppresses bubble nucleation by directing a high-v…
Abstract The distribution of relaxation times (DRT) model is widely used to deconvolve electrochemical impedance spectra into timescale distributions. However, standard DRT formulations assume integrable impedance. This condition is violated by electrochemical systems with blocking boundaries where diffusion or charge accumulation causes the low-frequency response to diverge. W…
Abstract At present, the only commercial lithium-metal battery (LMB) technology is based on polyethylene oxide (PEO) based electrolytes. However, its limited ionic conductivity at ambient temperatures requires the operation (discharge and charge) at elevated temperatures of around 60-80 °C, i.e., close to and above the melting point of PEO. Herein, we investigate the impact of …
Abstract The Randles circuit comprising the blocked-diffusion Warburg impedance with frequency dispersion (BDWf) is commonly used to characterise electrochemical processes in the impedance response of battery electrodes. This study develops an analytical formulation of the distribution of relaxation times (DRT) for a Randles circuit incorporating blocked-diffusion impedance wit…
Abstract This review discusses methods of determining the presence of titanium using adsorptive stripping voltammetry (AdSV) and catalytic adsorptive voltammetry (CAdSV). The work centres on the key factors that influence the sensitivity and selectivity of the proposed analytical procedures. Particular attention was paid to the role of the complexing agents used and the presenc…
Abstract Therapeutic drug monitoring of erlotinib in metastatic pancreatic ductal adenocarcinoma (PDAC) is critically constrained by the reliance on centralized instrumentation incompatible with point-of-care deployment. Here, a BiOBr/Bi2Te3 type II staggered heterojunction was rationally designed as a photoelectrochemical (PEC) sensing platform for ultrasensitive erlotinib qua…
Abstract In this paper, effect of coupling of the grid and the active mass on the electrode of the lead-acid battery is studied using a 2D model. The actual grid with crosshatch ribs is approximated with unidirectional parallel ribs to facilitate a reduction in dimensionality of the system to 2D. The model is based on porous electrode theory. The model is used to simulate the L…
Abstract Accurate estimation of state-of-charge (SOC) and state-of-energy (SOE) is crucial for ensuring the safety and range capability of battery systems. This paper presents an enhanced particle swarm-assisted adaptive extended Kalman particle filtering framework incorporating hysteresis correction for joint SOC and SOE estimation. Firstly, a second-order equivalent circuit m…
Abstract Lithium-air batteries (LABs) have an energy density of 500–1000 Wh kg -1 , which exceeds that of current lithium-ion batteries. However, their practical application is currently limited by poor cycle life and safety risks associated with unstable lithium metal anodes, such as sudden ignition caused by short circuits or contact with water. Alloying lithium with magne…
Zero-gap CO 2 electrolyzers employing Anion Exchange Membranes (AEMs) ensure beneficial cathodic alkalinity. However, (bi)carbonates formed at the cathode from CO 2 feed gas migrate through the AEM to the anode, releasing gaseous CO 2 . They also react with metal cations translocated from the anolyte, causing malfunction through blocking of the Gas Diffusion Electrode …
Abstract Accurate core-temperature estimation is critical for thermal management of large-format lithium iron phosphate (LFP) batteries, yet direct internal sensing is impractical in field-deployed battery management systems. This study presents GAT-TE, a graph-attention-based spatiotemporal estimator that infers the geometric-center core temperature of 230 Ah LFP prismatic cel…