Article
Materials Science, Multidisciplinary
I. Santos-Ramos, K. Chavez, S. J. Figueroa, J. Zarate-Medina, G. Rosas
Summary: In this study, MWCNTs were dispersed using Hamelia patens plant extract and decorated with AgNPs synthesized with the same aqueous extract. Various techniques were employed to evaluate the structure and performance of the products. The results showed that AgNPs/MWCNTs exhibited good catalytic performance in degrading methylene blue dye.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
K. Chavez, S. J. Figueroa-Ramirez, C. Patino-Carachure, G. Rosas
Summary: In this study, Ag dendrites were synthesized using a green method with Hamelia patens aqueous extract. Characterization techniques including SEM, EDS, UV-vis, XRD, and TEM revealed the morphology and structure of the products, showing catalytic activity of the Ag nanostructures.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Green & Sustainable Science & Technology
Roma Agrahari, Radha Rani
Summary: A litre-scale multi-modular microbial fuel cell was operated using exo-electrogenic inoculum enriched from cow-dung for 45 days in batch mode, under three different circuit connections. Electrochemical analysis showed that the individual circuit had the highest power output and the lowest internal resistance. Additionally, the study reported COD removal rate and columbic efficiency of the MFC.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Analytical
Ludwe L. Sikeyi, Themba D. Ntuli, Thomas H. Mongwe, Nobanathi W. Maxakato, Neil J. Coville, Manoko S. Maubane-Nkadimeng
Summary: Well-dispersed ultrafine platinum nanoparticles (Pt NPs) loaded on carbon nano-onions (CNOs) surface were successfully synthesized and their catalytic performance was evaluated. Boron oxide modified carbon nano-onions (B-CNOs) as the support for Pt NPs showed enhanced catalytic activity and stability, which could be attributed to the increased electronic conductivity by boron oxide and the enhanced interaction with water.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Okan Avci, Yudum Tepeli Buyuksunetci, Ulku Anik
Summary: A practical and sensitive electrochemical sensor for hemoglobin detection was developed. The sensor immobilized hemoglobin onto a carbon felt electrode without using any linker or applying any pre-functioning or electrochemical procedures. The sensor showed a linear range of 0.05 μM to 3.00 μM and a detection limit of 4.4 nM for hemoglobin. It was successfully applied for hemoglobin detection in synthetic physiological serum sample and the influences of interfering reagents were examined.
ANALYTICAL LETTERS
(2022)
Article
Chemistry, Analytical
Okan Avci, Yudum Tepeli Buyuksunetci, Ulku Anik
Summary: A practical and sensitive electrochemical sensor was developed for hemoglobin detection. The sensor immobilized hemoglobin onto a carbon felt electrode without the need for a linker or pre-functioning procedures. The optimized conditions and analytical characteristics were investigated, resulting in a linear range of 0.05 mM to 3.00 mM and a detection limit of 4.4 nM for Hb. The relative standard deviation for 3 replicate determinations of 0.05 mM Hb was 1.35%. The sensor was successfully applied for Hb detection in a synthetic physiological serum sample using the standard addition method, while also examining the influence of interfering reagents.
ANALYTICAL LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Rizwan Wahab, Farheen Khan, Manawwer Alam, Yogendra Kumar Mishra
Summary: Silver nanoparticles have versatile applications in energy solutions and human health. This study explores the potential of silver nanoparticles as a sensing material for the biological molecule riboflavin, with a focus on electrochemical processes. The study provides insights into the properties and efficiency of the silver nanoparticle-based sensing material and proposes a possible mechanism.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
Article
Chemistry, Analytical
Mitsuhiro Seki, Ryotaro Wada, Hitoshi Muguruma
Summary: This study investigates the intramolecular cyclization reactions of catecholamines in the ECE process, revealing that the cyclization rate is pH-dependent and follows a specific order for different types of catecholamines. The electrochemical behavior is verified by analyzing the change in cathodic peak intensity due to the reduction of catecholamine-o-quinone. This work contributes to a deeper understanding of catecholamines and the development of novel strategies for electrochemical sensing.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Engineering, Multidisciplinary
Amany M. Fekry, Shereen M. Azab, Fekria M. Abou Attia, Neveen S. Ibrahim, Gehad G. Mohamed
Summary: The multiwalled carbon nanotubes/Cellulose/Tween (MWCNTs/C/T/MCPE) reformed carbon paste electrode (CPE) was successfully developed as a highly sensitive and easy-to-use electrochemical sensor for the determination of Agomelatine (AGO) in various samples. The sensor displayed high sensitivity and selectivity towards AGO, with additional testing confirming stability, reproducibility, repeatability, interference, and coexistence with dopamine (DA). Further analysis of AGO in Inspago tablets, urine samples, and in the presence of dopamine demonstrated the method's high sensitivity and selectivity.
Article
Engineering, Electrical & Electronic
Abdulrahman G. Alhamzani, Al-Hassan S. Mahdy, Mortaga M. Abou-Krisha, Tarek A. Yousef, M. Abd-Elsabour
Summary: In this study, a novel and eco-friendly synthesis method was proposed for the simultaneous determination of dopamine and acetaminophen using a silver-magnetic nanocomposite supported on nanocellulose modified glassy carbon electrode. The synthesized nanomaterials were characterized by various techniques, and important parameters such as scan rate and pH effects were investigated. The developed sensor showed good sensitivity and linearity, and was successfully applied to real sample analysis.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Analytical
Sarbjeet Kaur, Shalini, Bilal Ahmad Shiekh, Vipan Kumar, Inderpreet Kaur
Summary: A new compound TNFC was synthesized and confirmed by various experimental methods, and then successfully applied as a receptor for Cu2+ in differential pulse voltammetric and potentiometric sensors for quantification.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Setareh Rostami-Javanroudi, Arash Babakhanian
Summary: A new voltammetry sensor was designed by electrodeposition of silver nanoparticles and 2-amino-5chloro benzophenone on pencil graphite electrode, showing good electrocatalytic performance for the reduction of vitamin K1 and achieving satisfactory results in analytical applications in human blood serums.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Mouna Mekersi, Mosbah Ferkhi, Ebru Kuyumcu Savan
Summary: In this study, low-cost, highly sensitive, and more effective nano-sized materials La1.7Sr0.3CuO4 and La0.6Sr0.4Co0.8Fe0.2O3 were synthesized and modified with black carbon for glucose detection. The modified electrodes showed excellent response and sensitivity for glucose molecule detection, making them suitable for real sample analysis.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Physical
Ludwe L. Sikeyi, Themba D. Ntuli, Thomas H. Mongwe, Nobanathi W. Maxakato, Emanuela Carleschi, Bryan P. Doyle, Neil J. Coville, Manoko S. Maubane-Nkadimeng
Summary: This study synthesized three types of nano onions and prepared Pd/CNO electrocatalysts using different methods. The N-CNO and Pd/N-CNO catalysts showed high current density and long-term stability in alkaline medium.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Wei Zhang, Chi Zhang, Zengtong Jiao, Hongwei Zhu, Gang Xu, Xiaotong Chen, Bing Liu, Yaping Tang
Summary: The electrochemical behaviors of three compositions of matrix graphite (MG), including artificial graphite (AG), natural graphite (NG), and binder carbon (BC), were experimentally investigated. It was found that these three compositions exhibited different electrochemical reactivity, possibly due to the encased AG and NG flakes by bulk BC. The deconsolidation reaction process of MG could be interpreted as a two-step process according to the cyclic voltammetric and characterizing results.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Chemistry, Analytical
L. Deleebeeck, J. Avnskjold, A. Snedden
ACCREDITATION AND QUALITY ASSURANCE
(2020)
Article
Electrochemistry
Rokas Sazinas, Kjeld Bohm Andersen, Kent Kammer Hansen
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2020)
Article
Chemistry, Physical
K. Kammer Hansen
SOLID STATE IONICS
(2020)
Article
Electrochemistry
K. Kammer Hansen
Article
Electrochemistry
R. M. L. Werchmeister, K. Kammer Hansen
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2020)
Review
Energy & Fuels
Lisa Deleebeeck, Sune Veltze
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2020)
Article
Electrochemistry
K. Kammer Hansen, L. Deleebeeck, V. Gil
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2020)
Article
Materials Science, Ceramics
Jierong Liang, Rokas Sazinas, Kent Kammer Hansen
Summary: A new series of cobalt-based perovskite cathodes for intermediate temperature solid oxide fuel cells were studied, showing that samples rich in cobalt have thermal expansion coefficients more compatible with common electrolytes, but compromises need to be made between thermal expansion and electrical conductivity.
CERAMICS INTERNATIONAL
(2021)
Article
Electrochemistry
K. Kammer Hansen, L. Deleebeeck
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2020)
Article
Electrochemistry
K. Kammer Hansen
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2020)
Article
Chemistry, Analytical
Lisa Deleebeeck, Alan Snedden, Daniel Nagy, Zsofia Szilagyi Nagyne, Matilda Rozikova, Martina Vicarova, Agnes Heering, Frank Bastkowski, Ivo Leito, Raquel Quendera, Vitor Cabral, Daniela Stoica
Summary: The study presents the authors' experience in measuring pH(abs)(H2O) values in mixtures of methanol, ethanol, and acetonitrile, with water, without the presence of buffers or other additives, using differential potentiometry and the 'pH(abs)-ladder' method. The introduction of the unified pH concept offers a way to compare pH values between solvents, addressing the issue of conventional pH values' incomparability. However, practical challenges remain in this research field, including the selection of commercial electrodes and ensuring comparability between laboratories.
Article
Chemistry, Analytical
Ricardo J. N. Bettencourt da Silva, Jaan Saame, Barbara Anes, Agnes Heering, Ivo Leito, Teemu Naykki, Daniela Stoica, Lisa Deleebeeck, Frank Bastkowski, Alan Snedden, M. Filomena Camoes
Summary: This study discusses the use of the unified pH concept, pH(abs)(H2O), for interpretation and comparison of acidity in various solutions, with a focus on reliable determination through differential potentiometry. Uncertainty evaluations were performed using Monte Carlo Method (MCM) and Taylor Series Approximation (TSM), showing successful application to measuring aqueous buffers. The MCM estimated pH values with expanded uncertainty, while the TSM quantified measurement uncertainties slightly higher than MCM.
ANALYTICA CHIMICA ACTA
(2021)
Review
Transportation Science & Technology
Kent Kammer Hansen
Summary: This article reviews different techniques for the removal of pollutants from diesel exhaust gasses using an all-solid-state electrochemical reactor, comparing the advantages and drawbacks of different concepts. Early research focused on removing either hydrocarbons or NOx, with high current consumption, while more recent research has shown potential for removing all pollutants with one type of electrochemical reactor, although power consumption remains a challenge.
SAE INTERNATIONAL JOURNAL OF ENGINES
(2021)
Review
Engineering, Electrical & Electronic
Carsten Thirstrup, Lisa Deleebeeck
Summary: This article provides an overview and analysis of the application of electrolytic conductivity (EC) sensors in various industries, discussing the challenges of calibration and compliance with standards. It also introduces the modeling of EC cells and the extension of models to include different effects.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Electrochemistry
K. Kammer Hansen
INTERNATIONAL JOURNAL OF ELECTROCHEMISTRY
(2020)
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)
