Article
Chemistry, Analytical
Haotian Chen, Enno Katelhon, Richard G. Compton
Summary: Physics-informed neural networks are applied to model the mass transport in rotating disk electrodes (RDEs), which are widely used in electroanalysis. The accuracy of the PINN approach is verified quantitatively through 1D simulations, showing comparable results with finite difference simulations and analytical equations under the Levich approximation for cyclic voltammetry and chronoamperometry. Moreover, the PINN approach allows for consideration of smaller Schmidt numbers and reveals the edge effect in RDEs due to nonuniform accessibility and radial diffusion. This extended theory demonstrates that PINNs can serve as an easier and more powerful substitute for conventional methods in analyzing RDEs.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Vijendra Kumar, Debasis Nayak, Karabi Das, Siddhartha Das
Summary: Cu-Sn intermetallics, commonly known as bronze, have versatile applications, particularly as coatings on stainless steel. However, the electroplating process using acidic baths is expensive and unstable. This study presents a stable and cost-effective electrolyte bath based on pyrophosphate for depositing Cu, Sn, and Cu-Sn coatings.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Gururaj Kudur Jayaprakash, B. E. Kumara Swamy, Shashanka Rajendrachari, S. C. Sharma, Roberto Flores-Moreno
Summary: Cationic surfactants increase the number of surface active electron transfer (ET) sites on the carbon paste electrode (CPE) surface. A dual descriptor approach is proposed to locate the redox-active sites of different surfactants in a single plot, avoiding the need to separately plot oxidation and reduction sites. Results indicate that cetylpyridinium significantly increases the maximum number of ET sites on the CPE surface compared to other surfactants.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Analytical
Milivoj Lovric
Summary: A model of cyclic staircase voltammetry of enzymatic reactions on the rotating disk electrode is developed, with an investigation into the inhibition by the product. The study found that responses are mostly time-dependent current-potential curves, with maxima in the forward but not in the backward branch. If the maxima appear in both branches, the inhibition is potential-dependent either directly or indirectly.
Article
Materials Science, Multidisciplinary
Hemn A. H. Barzani, Yavuz Yardim
Summary: An excellent electrochemical sensor using a non-modified boron-doped diamond electrode was developed for the determination of rifabutin. The oxidation of rifabutin showed irreversible behavior with diffusion-controlled and well-defined two oxidation peaks. The addition of cetyltrimethylammonium bromide greatly enhanced the anodic peak currents of rifabutin, especially under accumulation conditions. This method provided accurate quantification of rifabutin and was successfully used for evaluation in pharmaceutical formulation.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Chiara Abate, Giulia Neri, Angela Scala, Placido Giuseppe Mineo, Enza Fazio, Antonino Mazzaglia, Alex Fragoso, Ottavia Giuffre, Claudia Foti, Anna Piperno
Summary: The study demonstrates the successful electrochemical sensing of Hg(II) in aqueous solution using nanoassembly based on cationic cyclodextrin carbon nanotubes (CNT-CDs) and ferrocenylcarnosine (FcCAR). The CNTs were functionalized with beta-cyclodextrins (CDs) through a click chemistry reaction and subsequent reduction of residual nitrogen groups. The CNT-CDs were cast on screen-printed carbon electrodes (SPCEs) and their electrochemical response was evaluated using cyclic voltammetry (CV). The CNT-CD/FcCAR nanoassembly showed enhanced electroactive properties for Hg(II) detection. The sensor exhibited a linear concentration dependence in the range of 1-100 nM, with a sensitivity of 0.12 muA/nM, a limit of detection of 0.50 nM, and a limit of quantification of 1 nM.
ACS APPLIED NANO MATERIALS
(2023)
Article
Electrochemistry
Ting-Hsuan You, Chi-Chang Hu, Hui-Ching Chien, Tien-Yu Yi
Summary: The bi-functional activities of electrocatalysts for the ORR and discharge products decomposition in rechargeable Li-O2 batteries can be effectively evaluated using cyclic voltammetry with varying the lower potential limit. Utilizing Ru-Sn oxides decorated graphene nanowalls as examples, it was found that both Ru-enriched and Sn-enriched Ru-Sn oxides exhibit higher bi-functional activities than mono-oxides and pure graphene. The full cell performance in terms of rate capability, cycle life, and charge-discharge voltage gaps can be correlated to these findings.
ELECTROCHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Katarzyna Tyszczuk-Rotko, Damian Gorylewski
Summary: The development of a glassy carbon electrode (GCE) modified with cetyltrimethylammonium bromide (CTAB) material is critical for the fast and simple sensing of the arsenic drug roxarsone (ROX). The CTAB-modified GCE showed excellent behavior for electrochemical reduction of ROX using cyclic voltammetry (CV) and square-wave adsorptive stripping voltammetry (SWAdSV) techniques. The surfactant-modified material has faster electron transfer and a higher active surface area, allowing a diffusion-adsorption-controlled process.
Article
Materials Science, Multidisciplinary
Hemn A. H. Barzani, Hoshyar Saadi Ali, Hande Izem Ozok, Yavuz Yardim
Summary: The aim of this study was to describe the voltammetric analysis of caffeic acid phenethyl ester (CAPE) using a boron-doped diamond (BDD) electrode in the presence of a cationic surfactant. Cyclic voltammetry was used to determine the oxidation and reduction peaks of CAPE, which showed a well-defined, quasi-reversible behavior. The presence of the cationic surfactant significantly increased the oxidation peak currents of CAPE. The developed approach was successfully applied to detect CAPE concentration in model urine samples.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Yuvraj Tyagi, Sahil Siddiqui, Sai Sudhamsu Dindakurthi, S. Madhavan
Summary: This study examined the welding of Aluminium-Lithium alloys using the Rotating arc welding process with ER4043 filler. It was found that joints made using the Square Butt exhibited greater weld strength and enhanced work function, with the presence of different strengthening precipitates in various zones as revealed by electron microscopy and XRD analysis.
MATERIALS SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Reddivari Muniramaiah, Nandarapu Purushotham Reddy, Rompivalasa Santhosh, Gouranga Maharana, Jean Maria Fernandes, Dilli Babu Padmanaban, Manavalan Kovendhan, Ganapathy Veerappan, Gangalakurti Laxminarayana, Murali Banavoth, D. Paul Joseph
Summary: Exploring alternatives to indium tin oxide electrode, due to the scarcity of indium, is currently popular. Codoping SnO2 with niobium (Nb) and fluorine (F) using spray deposition is investigated. Optical transmittance increases with Nb content up to 4%, while sheet resistance decreases up to 3 wt% Nb doping. The films doped with 4 wt% Nb show the highest figure of merit and a surface work function of 4,687.85 meV.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2023)
Review
Biochemical Research Methods
Bushra Tariq, Asim Mansha, Sadia Asim, Abida Kausar
Summary: This article discusses the solubility of 1-amino-4-hydroxy-9,10-anthraquinone in ethanol-water solution and its effects on color strength and fastening properties. It also examines the interactions of various anthraquinone derivatives with DNA and a cationic surfactant.
JOURNAL OF FLUORESCENCE
(2023)
Article
Engineering, Electrical & Electronic
Yugeun Jo, Sung-Min Kim, Eun-Suk Jeong, Ki-Taik Lee, SangHoon Jin, Woon Young Lee, Sang-Yul Lee, Min Hyung Lee
Summary: This study explored the impact of different Ag complexing agents on the co-electrodeposition of SnAg alloys. The reduction onset potentials of Ag and Sn electrodeposition solutions were determined in the presence of thiourea (TU), 1-(2-dimethylaminoethyl)-5-mercapto-1,2,3,4-tetrazole (DMT), and 4,4'-thiodiphenol (TDP). Results showed that TDP was the most effective in reducing the onset reduction potential compared to TU and DMT, resulting in a more uniform deposition process and smoother surface morphology of the SnAg bump. The molecular structures and energy levels of the complexing agents were analyzed to gain insights into their complexation behaviors.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Yalcin Altunkaynak, Gunay Onal, Abdulkadir Levent
Summary: The electrochemical properties of desloratadine, a second-generation antihistamine, were studied using bismuth film electrode in aqueous and aqueous/surfactant solutions. Addition of cationic surfactants increased the reduction current signal, while anionic and nonionic surfactants had adverse effects. Linear sweep-cathodic stripping voltammetry showed a linear correlation for desloratadine quantitation in the range of 0.1 to 4 µM with a detection limit of 11.70 nM.
TURKISH JOURNAL OF CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Mervat Ibrahim, Mohamed E. Moussa, Reham Reda
Summary: The gravity die casting method was used to produce Cu-Cr-Zr alloys with different compositions, and the effect of aging time on their functional properties was studied. It was found that the chemical composition of the alloys has a significant impact on the optimum aging time as well as the combination of hardness and functional electrical properties.
MATERIALS SCIENCE AND TECHNOLOGY
(2022)
Article
Electrochemistry
V. Caramia, C. Ponce de Leon, C. T. J. Low, F. C. Walsh
TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING
(2015)
Article
Electrochemistry
C. T. J. Low, C. Ponce de Leon, F. C. Walsh
TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING
(2015)
Article
Electrochemistry
F. C. Walsh, C. T. J. Low, J. O. Bello
TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING
(2015)
Article
Materials Science, Coatings & Films
F. C. Walsh, C. T. J. Low
SURFACE & COATINGS TECHNOLOGY
(2016)
Review
Materials Science, Coatings & Films
F. C. Walsh, C. T. J. Low
SURFACE & COATINGS TECHNOLOGY
(2016)
Article
Electrochemistry
F. C. Walsh, C. T. J. Low
TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING
(2016)
Article
Multidisciplinary Sciences
Anup Barai, Kotub Uddin, Julie Chevalier, Gael H. Chouchelamane, Andrew McGordon, John Low, Paul Jennings
SCIENTIFIC REPORTS
(2017)
Article
Nanoscience & Nanotechnology
Barun Kumar Chakrabarti, Jingyu Feng, Evangelos Kalamaras, J. Rubio-Garcia, Chandramohan George, Hui Luo, Yuhua Xia, Vladimir Yufit, Maria-Magdalena Titirici, Chee Tong John Low, Anthony Kucernak, Nigel P. Brandon
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Physical
Ehsan Ghasemiestahbanati, Mahdokht Shaibani, Kristina Konstas, Barun K. Chakrabarti, C. T. John Low, Mainak Majumder, Matthew R. Hill
Summary: This study explores nanocomposite separators to address the vanadium crossover issue in vanadium redox flow batteries (VRFBs). By developing a dual-function charge carrier molecular sieve (CCMS) membrane, researchers effectively hindered the migration of hydrated vanadium ions, leading to improved battery cycle life and stable VRFB performance compared to benchmarked Nafion.
ACS APPLIED ENERGY MATERIALS
(2022)
Review
Energy & Fuels
Barun Kumar Chakrabarti, Metin Gencten, Gerard Bree, Anh Ha Dao, Daniel Mandler, Chee Tong John Low
Summary: This article reviews the applications of electrophoretic deposition (EPD) in electrochemical energy storage (EES) devices. It highlights the selection of parameters for optimizing EPD electrode performance, such as light-directed EPD, co-deposition of active materials, and materials with high porosity and fibrous properties. It also discusses methods for overcoming obstacles in improving the mechanical properties, conductivity, and surface area of EES materials. The exceptional benefits of EPD, including low cost, small processing time, simple apparatus requirements, and homogeneous coatings, are emphasized. The article encourages further research and development programs to industrialize EPD processes for advanced solid electrolytes and separators in lithium-ion and/or sodium-ion batteries.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Electrochemistry
Javier Rubio-Garcia, Anthony Kucernak, Barun Kumar Chakrabarti, Dong Zhao, Danlei Li, Yuchen Tang, Mengzheng Ouyang, Chee Tong John Low, Nigel Brandon
Summary: Combining graphite felt with in-house carbon catalyst layer (CCL) can improve the key performance metrics of H-2/Mn RFC, such as electrolyte utilization, energy efficiency, and peak power densities. Compared to using graphite felt alone, using CCL and graphite felt electrodes can achieve better performance indicators.
Article
Chemistry, Multidisciplinary
Gerard Bree, Hongqing Hao, Zlatka Stoeva, Chee Tong John Low
Summary: Accurate monitoring of battery cell state of charge (SoC) and state of health (SoH) is demonstrated using a surface-mounted sensor that detects small changes in cell volume through monitoring the changes in electrical resistance of a graphene film. Rapid SoC determination without interruption to cell operation is enabled by extracting the relationship between sensor resistance and cell SoC/voltage. The sensor also detects early indications of irreversible cell expansion due to common cell failure modes, allowing mitigating steps to be taken.
Article
Electrochemistry
Gerard Bree, Chee Tong John Low
Summary: Electrophoretic deposition (EPD) is a proven coating operation at an industrial scale and has found promising application in various industries. This study focuses on full-cell lithium-ion batteries with EPD-manufactured electrodes and finds that EPD electrodes outperform slurry casting in terms of lower resistances, higher extractable capacity, higher power capability, and stable cycling robustness.
BATTERIES & SUPERCAPS
(2023)
Article
Chemistry, Multidisciplinary
Barun Kumar Chakrabarti, Chee Tong John Low
Summary: EPD is a convenient industrial operation for surface coatings, but its advancement for energy storage electrodes remains unclear. This study focuses on using AC as a supercapacitor material, showing practical EPD electrodes with commercially viable parameters. Research includes electrolyte formulations, deposition parameters, and cell performance testing.
Article
Chemistry, Multidisciplinary
Yutao Zhou, Qianye Huang, Chee Tong John Low, Richard I. Walton, Tony McNally, Chaoying Wan
NEW JOURNAL OF CHEMISTRY
(2019)
Article
Materials Science, Coatings & Films
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)