Article
Engineering, Mechanical
Arun Rajput, J. Ramkumar, K. Mondal
Summary: The effect of strong oxidizer and operating temperature on the cavitation erosion resistance of different microstructures of a high carbon steel was studied. The results showed that the addition of a strong oxidizer significantly increased the cavitation erosion rate of the high carbon steel.
Article
Materials Science, Coatings & Films
Shuang Peng, Jiang Xu, Zhengyang Li, Shuyun Jiang, Zong-Han Xie, Paul Munroe
Summary: The study revealed that the NbC coating exhibited better cavitation erosion-corrosion resistance compared to the Ti-6Al-4V alloy, with the noise resistance and slope values of the NbC coating remaining almost constant regardless of the output power. The charge of the corrosion event and the total energy of the d series crystals for the NbC coating were significantly lower than that of the Ti-6Al-4V alloy, indicating a high propensity of pitting corrosion for the alloy.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Shuang Peng, Jiang Xu, Shuyun Jiang, Zong-Han Xie, Paul Munroe
Summary: A TiCN coating was prepared on a TC11 substrate using a double-cathode glow discharge technique to alleviate cavitation erosion damage in hydraulic machines. The nanoscale equiaxed grain structure and good self-healing capability of the TiCN coating contributed to its excellent cavitation erosion resistance.
Article
Electrochemistry
Erlind Mysliu, Thomas Holm, Mattijs ten Cate, Andreas Erbe
Summary: Dynamic Electrochemical Impedance Spectroscopy (dEIS) was used to rapidly measure the initiation and evolution of localized corrosion on different 3005 aluminum alloys with varying Mn and Cu content. Differences between samples were detected through the charge transfer resistance and were correlated with filament density from a filiform corrosion test. The results suggest that dEIS is an efficient method for screening alloys for their corrosion susceptibility.
Article
Acoustics
Morteza Abedini, Stefanie Hanke, Fabian Reuter
Summary: We have quantitatively studied cavitation damage non-invasively, in-place and time-resolved at microsecond resolution. By generating a single, laser-induced bubble in an aqueous NaCl solution near the surface of an aluminum sample, we were able to measure the cavitation damage in the nanometer thin passive layer of the aluminum surface via the corrosion current from repassivation. Correlation between the corrosion current and the bubble dynamics allows for understanding the contribution of cavitation damage at different stages of the bubble dynamics.
ULTRASONICS SONOCHEMISTRY
(2023)
Article
Engineering, Mechanical
Matevz Dular, Claus Dieter Ohl
Summary: A study found that attaching a thin metal sheet to PMMA causes less cavitation damage than attaching it to SiO2, but the reason for this was unknown.
In this systematic study, it was shown that the damage sustained on the foil attached to PMMA was significantly smaller compared to the one attached to SiO2, regardless of the bubble collapse distance from the boundary.
By using femtosecond illumination and high-speed image acquisition, researchers were able to observe the formation and progression of shock waves emitted during cavitation bubble collapse and found that these waves are reflected on SiO2 but traverse through PMMA.
Article
Materials Science, Multidisciplinary
Q. N. Song, Y. Wang, Y. Q. Wu, X. Y. Zhu, N. Xu, G. Y. Zhang, Y. F. Bao, J. H. Zhao, L. J. Zhao, Y. Gao, Y. X. Qiao
Summary: The cavitation erosion behaviors of two aluminum bronzes after pre-corrosion in 3.5% NaCl solution were studied. Mechanical impact was found to be the dominant factor causing the cavitation erosion damage of the pre-corroded samples. Pre-corrosion increased the contribution of pure erosion to the cavitation erosion-corrosion damage, leading to increased surface roughness and weakened mechanical properties. This resulted in significant material loss and the formation of large and deep cavities. The inferior mechanical property of one of the aluminum bronzes greatly contributed to its severe cavitation erosion damage. Pre-corrosion had a greater influence on the cavitation erosion behavior of the other aluminum bronze due to the deterioration of its cavitation resistance caused by corrosion damage.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Dominika E. Zakrzewska, Marta H. Buszko, Alicja K. Krella, Anna Komenda, Grzegorz Mordarski, Robert P. Socha
Summary: Cavitation erosion is a common occurrence in many industries, leading to the search for methods and parameters to minimize its effects on materials. Studies have shown that a lack of incubation time during cavitation tests can result in a linear increase in losses, with observed damages overlapping to widen the erosion area and compromise the coating's integrity.
Article
Materials Science, Multidisciplinary
Jiang Xu, Shuang Peng, Zhengyang Li, Shuyun Jiang, Zong-Han Xie, Paul Munroe, Hong Lu
Summary: A CoCrFeNiTiMo high entropy alloy (HEA) coating with a duplex phase microstructure was successfully prepared on a Ti-6Al-4 V substrate using the double cathode glow discharge method. The HEA coating exhibited high hardness, high load bearing capacity, and strong adhesion to the substrate. Compared to Ti-6Al-4 V, the HEA coating showed much less severe cavitation erosion damage in a 3.5% NaCl solution due to its excellent mechanical properties and high corrosion resistance.
Article
Engineering, Mechanical
Zhibin Zheng, Shuai Wang, Jun Long, Hui Liu, Peixian Han, Yanxin Qiao, Kaihong Zheng
Summary: Wear-resistant steels with different zirconium contents were prepared to investigate the influence of zirconium on the cavitation erosion-corrosion behavior. The results showed that appropriate addition of zirconium could effectively improve the cavitation erosion-corrosion resistance of the steel, while excessive addition of zirconium caused the precipitation of large-sized zirconium compounds, leading to damage of the steel.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
V. Bongiorno, S. Gibbon, E. Michailidou, M. Curioni
Summary: This study explores the potential use of machine learning algorithms to interpret electrochemical impedance spectroscopy (EIS) data, focusing on classification and fitting scenarios. The traditional approach based on equivalent circuit modeling is difficult to automate and has limited industrial applications.
Article
Electrochemistry
Negar Moradighadi, Srdjan Nesic, Bernard Tribollet
Summary: Electrochemical Impedance Spectroscopy (EIS) is a useful tool for studying electrochemical reactions and mechanisms, with the choice of DC potential being crucial for studying specific reactions; a new model has been developed in this study to predict which reaction dominates the measured impedance at specific potentials.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Inorganic & Nuclear
Dan Zhou, Yi-Xiang Chen, Xiao-Yu Yuan, Zhuang-Lei Chai, Jin-Ku Liu
Summary: This study successfully achieved the precise design of non-chemometric single-phase metal oxides (MVMOs) using the gradient intrinsic reduction method. The correlation between oxygen vacancies and electrochemical anticorrosion protection was explored systematically. The results confirmed the decisive role of periodic oxygen vacancies in electrochemical anticorrosion.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Liang Li, Yanxin Qiao, Lianmin Zhang, Aili Ma, Rongyao Ma, Yugui Zheng
Summary: Nickel-aluminum bronze (NAB) is widely used for flow-handling components due to its resistance to cavitation corrosion and superior casting property. However, the influence of different phases on the corrosion behavior of NAB needs further study, especially in relation to selective phase corrosion and uniform corrosion under different cavitation corrosion times. This study evaluated the corrosion behavior of NAB in a NaCl solution and clarified the corrosion mechanism based on experimental results.
Article
Materials Science, Multidisciplinary
R. Gonzalez-Parra, A. Covelo, M. Hernandez
Summary: The study investigated the influence of potentiodynamic scan rate on the formation of artistic patinas on a quaternary copper alloy, revealing the composition and characteristics of patinas formed at different scan rates. The results showed that patinas formed at lower scan rates exhibit better corrosion protection effects.
Article
Environmental Sciences
Malgorzata Szopiska, Jacek Ryl, Mattia Pierpaoli
Summary: In this study, the use of electrochemical oxidation with upcycled secondary waste materials (SWMs) as electrodes was demonstrated as a safer and cleaner technology to minimize the impact of pharmaceuticals in wastewaters. The design of tailored multifunctional electrode materials, derived from combustion and industrial processes, addresses the energy efficiency and potential release of toxic by-products issues. The results show that SWMs can substitute costly engineered fillers and the tailored fibrous composite electrodes have low energy consumption and absence of reaction by-products, making them good candidates for safer and cleaner technologies.
Article
Chemistry, Physical
Krystian Lankauf, Karolina Gornicka, Patryk Blaszczak, Jakub Karczewski, Jacek Ryl, Grzegorz Cempura, Marcin Zajac, Maciej Bik, Maciej Sitarz, Piotr Jasinski, Sebastian Molin
Summary: In this study, a series of MnCo2-xFexO(4) powders were synthesized by the sol-gel method to investigate the effect of partial Fe substitution on the physicochemical and electrochemical properties of MnCo2O4 spinel. The synthesized powders were characterized using various techniques. The findings revealed that the electrocatalytic activity towards oxygen evolution reaction (OER) was enhanced when Fe was partially substituted for Co, with the highest activity observed at x = 0.5. This indicates that tuning the eg occupancy at the octahedral sites through Fe substitution can modulate the catalytic activity of OER.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Mateusz Cieslik, Agata Rodak, Agnieszka Susik, Natalia Wojcik, Michal Szocinski, Jacek Ryl, Krzysztof Formela
Summary: This study investigated the multiple reprocessing of a commercially available PLA conductive composite with carbon black filler for 3D printing. The effects of extrusion temperature and reprocessing steps on the rheology, morphology, thermal, and electrochemical properties of the conductive PLA 3D-printing filament were evaluated. The results showed deterioration in thermal stability and material strength, as well as an increase in melting point after initial melting. The conduction mechanism and reversibility of the redox process were also affected by the multiple processing. Furthermore, the material fluidity was too high after multiple reprocessing, which should be considered for proper application as a 3D-printed electrode material.
Article
Chemistry, Physical
Lukasz Harynski, Dariusz Czylkowski, Bartosz Hrycak, Jakub Karczewski, Justyna Gumieniak, Agnieszka Kramek, Jacek Ryl, Katarzyna Grochowska, Miroslaw Dors, Katarzyna Siuzdak
Summary: Anodic TiO2 nanotubes have potential for large-scale production due to their high specific surface area and easy growth. In this study, a fast 30-second nitrogen plasma-induced crystallization method was proposed for TiO2 nanotubes. The method showed comparable photoresponse to furnace annealed TiO2 nanotubes without significant changes in their ordered morphology. This method demonstrates promise for reproducible and stable fabrication of photoanodes and could contribute to wider applications of plasma for phase transitions in functional materials.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Adrian Olejnik, Karol Olbrysi, Jakub Karczewski, Jacek Ryl, Robert Bogdanowicz, Katarzyna Siuzdak
Summary: In this work, the electropolymerization of quinone-rich polydopamine (PDA) on hydrogenated TiO2 nanotubes is described, resulting in improved photoactivity in the visible spectrum. The deposition of PDA is uniform on the nanotube walls and its chemical structure depends on the pH of the supporting electrolyte. The modification of the nanotubes leads to a 20-fold increase in photocurrent response and improvement in quantum efficiency at specific wavelengths.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Wiktoria Lipinska, Adrian Olejnik, Monika Janik, Mateusz Brodowski, Karolina Sapiega, Mattia Pierpaoli, Katarzyna Siuzdak, Robert Bogdanowicz, Jacek Ryl
Summary: The electrodes with a periodic matrix of gold particles patterned by titanium dimples and modified by 3-mercaptopropionic acid (MPA) followed by CD147 receptor grafting were studied for specific impedimetric detection of SARS-CoV-2 viral spike proteins. The study revealed that MPA adsorption on the Au-Ti surface had preferential and stronger binding patterns with CD147, resulting in enhanced surface coverage. Control of bonding at the surface was crucial for oriented receptor assembling and boosted sensitivity. The method has been demonstrated for detecting the SARS virus and can be applied to protein-antigen systems.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Materials Science, Ceramics
Natalia Anna Wojcik, Stefania Wolff, Jakub Karczewski, Jacek Ryl, Sharafat Ali
Summary: The impact of crystallinity on the structural, thermal, and in vitro dissolution properties of Na2O-CaO-Nb2O5/MgO-P2O5 glasses/glass-ceramics was investigated. Glass-ceramics were synthesized through spontaneous crystallization. The Nb content in the materials increased with melting temperature, and the crystallinity was directly proportional to the Nb content. FTIR analysis confirmed the presence of crystalline niobates and phosphates, which was consistent with XRD results. The phosphate network was found to consist of different proportions of Q2, Q1, and Q0 units, depending on the amount and type of crystalline phase. Most samples exhibited improved thermal stability. The in vitro dissolution test showed that the highest mass loss occurred within the first 6 days of immersion, with smaller phosphate crystals favoring the deposition of hydroxyapatite while larger niobate crystals dissolved more readily.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Paulina Rudzinska, Jakub Wawrzyniak, Katarzyna Grochowska, Jakub Karczewski, Jacek Ryl, Katarzyna Siuzdak
Summary: To meet the increasing global demand for clean electricity, affordable and efficient photoactive semiconductors are constantly being developed. A one-step calcination method combined with hydrogenation has been investigated as an alternative to the time-consuming furnace annealing for crystallization and modification of high-surface titania nanotubes. The evaluation of the crystallinity of the electrode based on Raman and X-ray diffraction, followed by optical and electrochemical investigation, revealed significantly improved performance of the modified material, including over 2.6-fold higher photocurrent densities and enhanced visible light absorption.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Haseebul Hassan, Muhammad Waqas Iqbal, Sarah Alharthi, Mohammed A. Amin, Amir Muhammad Afzal, Jacek Ryl, Mohd Zahid Ansari
Summary: In this study, the effect of introducing ester co-solvents into ethylene carbonate (EC) as an electrolyte for supercapacitors was investigated. The use of ester co-solvents improved conductivity, electrochemical properties, and stability, leading to enhanced energy storage capacity and durability. A novel electrode material, Mg(NbAgS)(x)(SO4)(y), was synthesized and deposited on a nickel foam substrate, demonstrating high specific capacity and energy density in combination with activated carbon (AC). The supercapattery showed promising performance after 15,000 consecutive cycles, with a Coulombic efficiency of 81% and capacity retention of 78%. The results highlight the potential of using this electrode material in ester-based electrolytes for supercapattery applications.
Article
Multidisciplinary Sciences
M. Nadolska, M. Szkoda, K. Trzcinski, J. Ryl, A. Lewkowicz, K. Sadowska, J. Smalc-Koziorowska, M. Przesniak-Welenc
Summary: Solar-driven photocatalysis using clean solar energy has great potential as a sustainable wastewater treatment technology. This study focuses on the development of NH4V4O10 (NVO) and its composite with rGO (NVO/rGO) as efficient and low-cost photocatalysts. The results show that the NVO and NVO/rGO photocatalysts have strong visible light absorption, high V4+ surface species, and a well-developed surface area, leading to excellent performance in methylene blue photodegradation. The NVO/rGO composite also shows promising results in the photoreduction of inorganic pollutants like Cr(VI).
SCIENTIFIC REPORTS
(2023)
Article
Biochemical Research Methods
Natalia Musial, Aleksandra Bogucka, Dmitry Tretiakow, Andrzej Skorek, Jacek Ryl, Paulina Czaplewska
Summary: Salivary stones, also known as sialoliths, are formed in pathological conditions in the salivary glands. The composition of sialoliths and the proteins associated with their formation have been studied using mass spectrometry and SWATH-MS analysis. Different types of sialoliths were found to contain unique proteins, and bacterial proteins were also identified. The results suggest that bacterial infections, disturbances in calcium metabolism, and neutrophil extracellular traps (NETs) may play a role in the formation of sialoliths.
CLINICAL PROTEOMICS
(2023)
Article
Nanoscience & Nanotechnology
Adrian Olejnik, Krzysztof Polaczek, Marek Szkodo, Alicja Stanislawska, Jacek Ryl, Katarzyna Siuzdak
Summary: This study focuses on using laser-induced graphite/graphene to achieve graphitization of polydopamine and improve electrochemical activity and photocurrent generation. The proposed composite is applied as a photoelectrochemical sensor and exhibits significantly enhanced sensing performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Multidisciplinary
Maria A. Osipenko, Jakub Karczewski, Michal Dominow, Marta Przes, Iryna V. Makarava, Irina Kurilo, Dzmitry S. Kharytonau, Jacek Ryl
Summary: This research developed an impedance-based tool and combined the multisinusoidal perturbation signal approach with the distribution of relaxation times (DRT) analysis to monitor non-stationary electrochemical processes for the first time. It identified common processes related to corrosion product layer formation and provided real-time recognition of a unique localized filiform corrosion attack process.
Article
Chemistry, Analytical
Mateusz Ficek, Mateusz Cieslik, Monika Janik, Mateusz Brodowski, Miroslaw Sawczak, Robert Bogdanowicz, Jacek Ryl
Summary: This paper focuses on the development of a novel electrode for impedimetric biosensors, based on boron-doped diamond nanosheet full-volume-enriched screen-printed carbon electrodes (BDDPE). The incorporation of diamond nanosheets leads to enhanced charge transfer and electrochemical behavior. The presented sensing system shows high specificity towards Haemophilus influenzae and has a detection limit of 1 CFU/mL, achieved in under 10 minutes.
Article
Chemistry, Analytical
Mateusz Cieslik, Agnieszka Susik, Mariusz Banasiak, Robert Bogdanowicz, Krzysztof Formela, Jacek Ryl
Summary: A new 3D-printable composite has been developed for electroanalytical applications, incorporating diamondised nanocarbons as fillers in PLA-based composites. The addition of these fillers significantly improved the electrocatalytic properties of the composite-based electrodes, leading to enhanced redox process kinetics and lower limits of detection for dopamine compared to carbon black-loaded PLA electrodes.
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)
