Hasil untuk "Industrial electrochemistry"

Praveen Kumar Reddy Maddikunta, Viet Quoc Pham, B. Prabadevi et al.

Abstract Industry 5.0 is regarded as the next industrial evolution, its objective is to leverage the creativity of human experts in collaboration with efficient, intelligent and accurate machines, in order to obtain resource-efficient and user-preferred manufacturing solutions compared to Industry 4.0. Numerous promising technologies and applications are expected to assist Industry 5.0 in order to increase production and deliver customized products in a spontaneous manner. To provide a very first discussion of Industry 5.0, in this paper, we aim to provide a survey-based tutorial on potential applications and supporting technologies of Industry 5.0. We first introduce several new concepts and definitions of Industry 5.0 from the perspective of different industry practitioners and researchers. We then elaborately discuss the potential applications of Industry 5.0, such as intelligent healthcare, cloud manufacturing, supply chain management and manufacturing production. Subsequently, we discuss about some supporting technologies for Industry 5.0, such as edge computing, digital twins, collaborative robots, Internet of every things, blockchain, and 6G and beyond networks. Finally, we highlight several research challenges and open issues that should be further developed to realize Industry 5.0.

Ming Yan, Yuki Kawamata, P. Baran

Kui Liu, Hongmei Li, Minghao Xie et al.

The electrochemical nitrate reduction reaction (NO3RR) holds promise for converting nitrogenous pollutants to valuable ammonia products. However, conventional electrocatalysis faces challenges in effectively driving the complex eight-electron and nine-proton transfer process of the NO3RR while also competing with the hydrogen evolution reaction. In this study, we present the thermally enhanced electrocatalysis of nitrate-to-ammonia conversion over nickel-modified copper oxide single-atom alloy oxide nanowires. The catalyst demonstrates improved ammonia production performance with a Faradaic efficiency of approximately 80% and a yield rate of 9.7 mg h-1 cm-2 at +0.1 V versus a reversible hydrogen electrode at elevated cell temperatures. In addition, this thermally enhanced electrocatalysis system displays impressive stability, interference resistance, and favorable energy consumption and greenhouse gas emissions for the simulated industrial wastewater treatment. Complementary in situ analyses confirm that the significantly superior relay of active hydrogen species formed at Ni sites facilitates the thermal-field-coupled electrocatalysis of Cu surface-adsorbed *NOx hydrogenation. Theoretical calculations further support the thermodynamic and kinetic feasibility of the relay catalysis mechanism for the NO3RR over the Ni1Cu model catalyst. This study introduces a conceptual thermal-electrochemistry approach for the synergistic regulation of complex catalytic processes, highlighting the potential of multifield-coupled catalysis to advance sustainable-energy-powered chemical synthesis technologies.

A. Willig

E. Monmasson, L. Idkhajine, M. Cirstea et al.

Sijie Liu, Le Zhou, K. Neyts

All‐solid‐state batteries (ASSBs) are a pivotal advancement for next‐generation energy storage, addressing the safety and energy density limitations of conventional lithium‐ion systems. Among various solid‐state electrolytes (SSEs), halide‐based SSEs have emerged as particularly promising candidates due to their unique combination of high ionic conductivity (0.1–10 mS cm−1), exceptional electrochemical stability (>4.5 V), and favorable mechanical properties. In contrast to polymer SSEs (limited by low ionic conductivity), oxide SSEs (requiring energy‐intensive processing), and sulfide SSEs (exhibiting moisture sensitivity and high cost), halide SSEs offer a more balanced performance profile, making them highly suitable for commercial applications. This perspective highlights halide SSEs as a key enabler for the commercialization of ASSBs, not only due to their superior material properties but also because of their advantages in scalable synthesis and industrial compatibility. Specifically, halide SSEs can be processed at room temperatures and pressures, and exhibit better interfacial compatibility with high‐voltage cathodes. These attributes significantly simplify the transition from lab‐scale research to pilot‐scale production, reducing both energy consumption and manufacturing complexity. Furthermore, a unified lab‐to‐pilot framework is proposed that integrates fundamental electrochemistry with scalable engineering practices for halide SSEs. A 2D evaluation system is also introduced to guide the selection of optimal application scenarios for ASSBs. By addressing critical challenges such as moisture sensitivity, interfacial degradation, and mechanical brittleness, halide SSEs are positioned as the most manufacturable pathway toward the commercialization of ASSBs for electric vehicles and grid‐scale storage. This work is the first to provide a comprehensive strategy perspective on halide‐based ASSB pilot lines, offering practical insights into material selection, process optimization, and industrial scalability.

Anastasiia Konovalova, Andrew C. Goldman, Raj Shekhar et al.

: Electrochemical ironmaking can provide an energy efficient, zero-emissions alternative to traditional methods of ironmaking, but the scalability of low-temperature electrochemical cells may be constrained by reactor throughput and the availability of acceptable feedstocks. Electrodes directly converting solid iron-oxide particles to metal circumvent traditional mass-transport limitations but are sensitive to both the particle size and nanoscale morphology of reactants. The effect of these properties on reactor throughput has not been systematically studied at model electrowinning surfaces. Here, we have used size-controlled, homologous α -Fe 2 O 3 particles to study how the nanoscale morphology of oxides influences the obtainable current density toward Fe metal and integrated these results in a technoeconomic model for alkaline iron electrowinning systems. Micron-scale α -Fe 2 O 3 with nanoscale porosity can be used to form Fe at current densities commensurate with industrial water electrolysis (>0.6 A cm − 2 ) in the absence of external convection, providing a path to cost-competitive and scalable ironmaking using electrochemistry.

K. B. Oldham

Apoorv Saraswat, Sunil Kumar

Hanlin Shao, Duan Li, Zhihao Chen et al.

Preparing compound reagents with multiple functions are the key technologies that are lacking in the application of corrosion inhibitors. In this work, we devoted to constructing a fluorescent and water-soluble black phosphorus quantum dots corrosion inhibitor based on the modification of Gum Arabic (GA-BPDs) and exploring its combined performance. Optical studies revealed GA-BPDs exhibited a fluorescence quantum yield (FQY) of 31.76 % and stable fluorescence characteristics, conferring the fluorescence tracing function and offering an accurate approach for determining the residual amount. Weight loss and electrochemistry studies demonstrated GA-BPDs exhibited an inhibition efficiency of 91.36 % for 100 mg/L in 0.5 M HCl solution at 25 °C. SEM, EDS, WCA, 3D-LSM, AFM, TOF-SIMS, and XPS analyses affirmed GA-BPDs adsorbed onto the surface of Q235 carbon steel, thereby forming a protective film with the metal surface via the coordination bond formed directly between the inherent lone pair electrons of P atoms and the empty three-dimensional orbitals of iron atoms, which would contribute to the enhanced corrosion protection. This work is anticipated to offer a theoretical foundation and technical support for applications of quantum dot in industrial circulating cooling water systems and promote the advancement of a new generation of fluorescent corrosion inhibitor technologies.

V. Kotov

Pengpeng Zhang, Meng Cai, Yixin Wei et al.

The utilization of diverse energy storage devices is imperative in the contemporary society. Taking advantage of solar power, a significant environmentally friendly and sustainable energy resource, holds great appeal for future storage of energy because it can solve the dilemma of fossil energy depletion and the resulting environmental problems once and for all. Recently, photo‐assisted energy storage devices, especially photo‐assisted rechargeable metal batteries, are rapidly developed owing to the ability to efficiently convert and store solar energy and the simple configuration, as well as the fact that conventional Li/Zn‐ion batteries are widely commercialized. Considering many puzzles arising from the rapid development of photo‐assisted rechargeable metal batteries, this review commences by introducing the fundamental concepts of batteries and photo‐electrochemistry, followed by an exploration of the current advancements in photo‐assisted rechargeable metal batteries. Specifically, it delves into the elucidation of device components, operating principles, types, and practical applications. Furthermore, this paper categorizes, specifies, and summarizes several detailed examples of photo‐assisted energy storage devices. Lastly, it addresses the challenges and bottlenecks faced by these energy storage systems while providing future perspectives to facilitate their transition from laboratory research to industrial implementation.

Xiaofang Fu, Kun Li, Chengli Zhang et al.

The increasing demand for the state-of-the-art electrochromic devices has received great interest in synthesizing Prussian blue (PB) nanoparticles with a uniform diameter that exhibit excellent electrochromism, electrochemistry, and cyclability. Herein, we report the controllable synthesis of sub-100 nm PB nanoparticles via the coprecipitation method. The diameter of PB nanoparticles can be modulated by adjusting the reactant concentration, the selection of a chelator, and their purification. The self-assembled nanogranular thin films, homogeneously fabricated by using optimized PB nanoparticles with an average diameter of 50 nm as building blocks via the blade coating technique enable excellent performance with a large optical modulation of 80% and a high coloration efficiency of 417.79 cm2 C-1. It is also demonstrated by in situ and ex situ observations that the nanogranular PB thin films possess outstanding structural and electrochemical reversibility. Furthermore, such nanogranular PB thin films can enjoy the enhanced long-term cycling stability of the PB-WO3 complementary electrochromic devices having a 91.4% optical contrast retention after 16,000 consecutive cycles. This work provides a newly and industrially compatible approach to producing a complementary electrochromic device with extraordinary durability for various practical applications.

Xuke Chen, Yu Xia, Yifan Yang et al.

Electrification of water in clouds leads to fascinating redox reactions on Earth. However, little is known about cloud electrochemistry, except for lightning, a natural hazard that is nearly impossible to harness. We report a controllable electrochemistry that can be enabled in microclouds by fast phase switching of water between the microdroplet, vapor, and bulk phase. Due to the size-dependent charge transfer between droplets during atomization, this process generates an alternating voltage arising from the self-electrification and discharging of microdroplets, vapor, and bulk phase by electron and ion transfer. We show that the microclouds with alternating voltage cause 1,2-dichloroethane (ClH2C–CH2Cl) to be converted to vinyl chloride (H2C=CHCl) at ∼80% selectivity. These findings highlight the importance of controlled cloud electrochemistry in accelerating the removal of volatile organic compounds and treating contaminated water. We suggest that this work opens an avenue for harnessing cloud electrochemistry to solve challenging chemoselectivity problems in aqueous reactions of environmental and industrial importance.

Shayantan Chaudhuri, R. Maurer

Electrodeposition is a fundamental process in electrochemistry and has applications in numerous industries, such as corrosion protection, decorative finishing, energy storage, catalysis, and electronics. While there is a long history of electrodeposition use, its application for controlled nanostructure growth is limited. The establishment of an atomic-scale understanding of the electrodeposition process and dynamics is crucial to enable the controlled fabrication of metal nanoparticles and other nanostructures. Significant advancements in molecular simulation capabilities and the electronic structure theory of electrified solid–liquid interfaces bring theory closer to realistic applications, but a gap remains between applications, a theoretical understanding of dynamics, and atomistic simulation. In this Review, we briefly summarize the current state-of-the-art computational techniques available for the simulation of electrodeposition and electrochemical growth on surfaces and identify the remaining open challenges.

Maximilian Scheller, Axel Durdel, Alexander Frank et al.

Due to challenges in manufacturing composite cathodes with oxide solid electrolytes, new cell concepts are emerging in which the infiltration of solid-polymer electrolyte (SPE) into 3D cathode pore structures improves capacity retention and cycling stability. However, the performance limitation and the resulting practical relevance of such a hybrid concept have not yet been analyzed and discussed. This study investigates the impact of laser-ablated geometric structures on the performance of hybrid solid-state batteries (SSBs). A Doyle–Fuller–Newman modeling approach is developed and parameterized for structured hybrid SSBs that incorporate a PEO/LiTFSI SPE and an LLZO ceramic separator, as well as NMC-811 and Li-metal for the positive- and negative-electrode active materials. Comparison between structured and planar cell designs reveals significant rate capability improvements in structured designs due to reduced diffusion and interfacial charge transfer polarization. A sensitivity analysis of geometric structure parameters shows further potential for performance improvement in terms of specific capacity and energy density. However, current constriction effects in the LLZO separator can deteriorate the rate capability. A more general perspective is then taken by analyzing the impact of changing SPE parameters. An energy density of 128 Wh kg⁻¹ at 1C, and 220 Wh kg⁻¹ at 1C with improved SPE parameters is achieved in the best case, approaching the target of 250 Wh kg⁻¹, which is currently achieved for conventional Li-ion batteries.

Turgay Cetinkaya

In this study, we aimed to evaluate the characteristic changes in polyvinyl alcohol-based nanofibers after being stored with black sea salmon fillets. For this purpose, electrospun nanofibers were produced as control (PVA), black carrot extract-incorporated (PVAB), and extract+SnO2 incorporated (PVASN), and their properties were compared. Morphological results showed the formation of regular ultrafine nanostructures, and differences between nanofiber samples were evaluated by measuring fiber diameters. Nanofiber sizes increased with the addition of black carrot and SnO2. Elemental analysis was performed to obtain information about the concentration in the nanofibers. Different O and Sn concentrations indicated that important constituents of anthocyanins and SnO2 were attached to the samples. The location of C, O, Sn atoms was determined by Energy Spectrum Analysis (EDS) color mapping, which confirmed the attachment of Sn in the PVASN sample. To elucidate the relationship between spoilage and the absorption of volatiles from smoked salmon fillets, nanofibers and fillets were kept together in a petri dish at room temperature. After being stored with salmon meat, the PVASN sample showed fewer entanglements without any defects. Upon exposure to volatiles, molecular structures changed, and water contact angle values decreased. X-Ray Diffraction (XRD) results indicated the state of the polymer matrix and SnO2. Chemical bond interactions with released volatiles effected the peak parameters of nanofibers. 3D and 2D surface topographical images of PVASN were also compared before and after storage using a profilometer. This study's results showed that functionalized nanofibers with extract-SnO2 could be applied as an intelligent food packaging layer, providing valuable data about the potential usage of electrohydrodynamic processing.

Christoph Seidl, Sören Thieme, Martin Frey et al.

The automotive industry aims for the highest possible driving range (highest energy density) in combination with a fast charge ability (highest power density) of electric vehicles. With both targets being intrinsically contradictory, it is important to understand and optimize resistances within lithium-ion battery (LIB) electrodes. In this study, the properties and magnitude of electronic resistance contributions in LiMn_0.7Fe_0.3PO₄ (LMFP)- and LiNi_xCo_yMn_zO₂ (NCM, x = 0.88~0.90, x + y + z = 1)-based electrodes are comprehensively investigated through the use of different measurement methods. Contact resistance properties are characterized via electrochemical impedance spectroscopy (EIS) on the example of LMFP cathodes. The EIS results are compared to a two-point probe as well as to the results obtained using a novel commercial 46-point probe system. The magnitude and ratio of contact resistance and compound electronic resistance for LMFP- and NCM-based cathodes are discussed on the basis of the 46-point probe measurement results. The results show that the 46-point probe yields significantly lower resistance values than those in EIS studies. Further results show that electronic resistance values in cathodes can vary over several orders of magnitude. Various influence parameters such as electrode porosity, type of current collector and the impact of solvent soaking on electronic resistance are investigated.

Jiazhe Cheng, Kai Wang, Xiaoyu Ning et al.

Aqueous zinc-ion batteries (AZIBs) are increasingly being acknowledged as a promising candidate to safely power large-scale energy storage systems and portable devices. However, the development of effective separator materials remains a significant challenge due to issues such as harmful dendrite growth on zinc (Zn) anodes and parasitic side reactions in aqueous electrolytes. To address this challenge, we synthesize a manganese-coordinated cellulose nanofibril (Mn-CNF)-based separator for high-performance AZIBs. This separator affords enhanced ion transport channel, a large number of hydroxyl groups, and exceptional mechanical properties, with a tensile strength of 2.8 MPa and superior ionic conductivity of 5.14 mS·cm⁻¹. These attributes collectively enhance Zn-ion transport, minimize nucleation overpotential for Zn, and accelerate the Zn deposition kinetics, thus significantly outperforming the untreated CNF separators. Consequently, the Zn||MnO₂ battery with the Mn-CNF separator shows a marked improvement in the galvanostatic rate performance and cycling stability by effectively accelerating and optimizing Zn-ion transport. This study offers valuable insights into the development of efficient and reliable separators for advanced electrochemical energy storage technologies.

S. Arun Karthick, K. Manjari, M. Gundhavi Devi

This work focuses on preparation of electrospun matrix for wound dressing application by utilizing sericin, chitosan and silver nanoparticles in PVA nanofibers. Sericin (SS) is extracted from silk cocoon (Bombyx Mori) by alkali degumming method. The extracted sericin is characterised by UV-visible Spectroscopy and FT-IR. Then, individual stock solutions of 2% (w/v) Chitosan (CH) in acetic acid, 10% (w/v) of PVA in deionised water were prepared. To enhance the antimicrobial property to the wound dressing, silver nanoparticles (Ag NP) was prepared using Cynodan dactylon (Bermuda grass) leaves extract and characterised using UV-visible Spectroscopy. The prepared Ag NP was incorporated in the nanofibers at constant proportion. Furthermore, three blended PVA/SS/CH solutions were prepared in the following ratios 8:1:1, 5:2.5:2.5, and 2:4:4 and electrospun to create nanofibrous dressing material. The structural and physical characteristics of the prepared nanofibrous dressing material were studied using SEM and Universal Testing Machine. Based upon mechanical strength and SEM analysis PVA/SS/CH in the ratio 8:1:1 was chosen for In-vitro studies. From the studies it concludes that the prepared PVA/SS/CH electrospun nanofiber will be a promising material for wound dressing.