Article
Chemistry, Analytical
Gul Sirin Ustabasi, Ismail Yilmaz, Mustafa Ozcan, Ebru Cetinkaya
Summary: Pencil graphite electrode modified with MWCNT and Bi3+ showed improved sensitivity and reduced charge transfer resistance in the simultaneous analysis of Pb2+, Cd2+, and Zn2+. This modification method offers effective electroanalytical performance with low time consumption and cost.
Article
Engineering, Environmental
Ruihua Huang, Jiapei Lv, Jianbing Chen, Yeling Zhu, Jian Zhu, Thomas Wagberg, Guangzhi Hu
Summary: This study proposes a boron and nitrogen co-doped carbon material derived from a metal-organic framework material for the detection of heavy metal ions in food. The sensor shows good sensitivity and selectivity for Cd(II) and Pb(II), and has potential applications in complex samples.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Analytical
Mohammad Reza Jalali Sarvestani, Tayyebeh Madrakian, Abbas Afkhami
Summary: In this study, a highly sensitive electrochemical sensor was developed for the detection of ultra-trace levels of Pb2+. The sensor was modified with an in-situ electroplated bismuth film and a nanocomposite of a recently synthesized melamine based covalent organic framework and Fe3O4 nanoparticles. The combination of Fe3O4@SNW1 and the bismuth film significantly enhanced the sensitivity of the sensor towards Pb2+. The optimized sensor showed a linear response in the concentration range of 0.003-0.3 μmol L-1 with a detection limit of 0.95 nmol L-1. The sensor demonstrated good selectivity towards Pb2+ and was successfully applied for the determination of Pb2+ in different edible specimens.
Article
Chemistry, Analytical
Manjunatha K. S. Kumara, D. H. Nagaraju, Zhoveta Yhobu, Nayan H. N. Kumar, Srinivasa Budagumpi, Shubhankar Kumar Bose, P. Shivakumar, Venkata Narayana Palakollu
Summary: In this study, researchers functionalized inexpensive and environmentally friendly Fe3O4 nanoparticles with D-valine using a co-precipitation synthetic approach. The resulting Fe3O4-D-Val sensor exhibited ultra-sensitive detection of Cd+2, Pb+2, and Cu+2 in water samples, with detection limits much lower than those suggested by the World Health Organization.
Article
Materials Science, Multidisciplinary
Salah Eddine Berrabah, Abdelkader Benchettara, Fatiha Smaili, Sabrina Tabti, Abdelhakim Benchettara
Summary: A novel inexpensive and easy electrochemical sensor based on carbon graphite electrode (Gr) modified with zinc hydroxide has been developed for the determination of trace levels of copper. The proposed method showed high sensitivity, low detection limit, good repeatability, and minimal interference from other ionic species. The method was validated using different brands of local source water and showed satisfactory results.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Analytical
Zhiwei Lu, Wenyuan Zhao, Lan Wu, Jie He, Wanlin Dai, Cailong Zhou, Haijun Du, Jianshan Ye
Summary: An effective strategy for the fabrication of novel layer-by-layer multilayer films modified electrodes in electrochemical sensor applications is proposed in this work. The newly constructed three-layer assembly of MWCNTs-COOH/UiO-66-NH2/MWCNTs-COOH/GCE as voltammetric sensor was adapted to simultaneous detection of Cd2+ and Pb2+. The combination of abundant adsorption sites of UiO-66-NH2 with excellent conductivity ability of MWCNTs-COOH, and the dominant characteristics of the chelation mechanisms between amine groups and heavy metal cations, strengthened its electrocatalytic activity.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Shi-Hua Chen, Zong-Yin Song, Xiang-Yu Xiao, Hong-Qi Huang, Yuan-Fan Yang, Pei-Hua Li, Meng Yang, Xing-Jiu Huang
Summary: Vacancy and doping engineering were used to improve the electrocatalytic ability of nanomaterials for detecting heavy metal ions. The P-doped material showed enhanced sensitivity and selectivity towards As(III), and the vacancies provided abundant electrons to form active centers.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Laia L. Fernandez, Julio Bastos-Arrieta, Cristina Palet, Mireia Baeza
Summary: This study describes the implementation of customized graphite electrodes decorated with Hg-NPs for the electrochemical detection of Cd, Pb, and Cu. The results show improved responses towards these analytes compared to bare graphite electrodes. The analytical performance of the sensors was evaluated using square-wave anodic stripping voltammetry and showed good agreement with ICP-MS measurements.
Article
Chemistry, Analytical
Ruihua Huang, Ke Zhang, Haowei Sun, Dafeng Zhang, Jian Zhu, Shuxing Zhou, Wenyan Li, Yongtao Li, Chunqiong Wang, Xiuxiu Jia, Thomas Wagberg, Guangzhi Hu
Summary: In this study, cetyltrimethylammonium bromide and zeolitic imidazolate framework-8 (ZIF-8) were assembled via chemical co-precipitation, and high-quality carbon-based metal-free nanomaterials were synthesized using heat treatment. The internal and morphological characteristics of hexagonal Star ZIF-8 were investigated. An electrochemical sensor with a good response to Cd(II) was prepared using Star ZIF-8 nanomaterial-modified electrodes. The sensitivity of the sensor was increased by five orders of magnitude.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Analytical
Ning Liu, Guo Zhao, Gang Liu
Summary: This study introduces a new method to detect Cd(II) and Pb(II) using feature stripping currents, which shows better anti-interference capability and detection accuracy. Models established using SVR and the partial least square algorithms demonstrate superior detection performance.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Silvina Kergaravat, Natali Romero, Luciana Regaldo, Guillermo R. Castro, Silvia R. Hernandez, Ana Maria Gagneten
Summary: This research aimed to develop an electrochemical method for detecting CIP, AgNPs, and their mixtures and correlating them with ecotoxicological effects in aquatic organisms. The study found that AgNPs had the highest toxicity on C. dubia, followed by the CIP-AgNP mixture and then CIP alone. The stability of CIP and Ag(I) from AgNPs was evaluated, showing potential applications for environmental monitoring and highlighting the importance of electrochemical and ecotoxicology approaches in preserving environmental health.
MICROCHEMICAL JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Bryan R. Wygant, Timothy N. Lambert
Summary: Anodic stripping voltammetry (ASV) is a powerful electrochemical technique used for detecting and quantifying metal ion species in aqueous media. Recent research has focused on using thin film metal electrodes generated in situ, which improve sensitivity and operability. ASV has a wide range of applications, including measuring toxic metals in the environment, characterizing battery materials, and enabling biological assays.
FRONTIERS IN CHEMISTRY
(2022)
Article
Environmental Sciences
Jiali Wang, Ning Liu, Guo Zhao, Xiaochan Wang, Gang Liu, Thi Dieu Thuy Nguyen, Litao Zhang
Summary: A new strategy based on low-pressure ultraviolet (LPUV)-H2O2 advanced oxidation photolysis was proposed for the quantitative determination of organic heavy metal ions (HMIs) in soil. It effectively restored the ASV signals of target HMIs by breaking the complexation of HMIs and organic matters, providing an efficient, low-cost, accurate, and green detection method for Pb(II) and Cd(II) in soil extracts.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Analytical
Priscila I. Soares, Thais M. Lima, Luiza. A. do Nascimento, Rafael M. Coelho, Diego L. Franco, Arnaldo C. Pereira, Lucas F. Ferreira
Summary: Caffeic acid-modified graphite electrodes were successfully applied to the co-detection of copper and lead in artisanal sugarcane spirit. The electrochemical results showed a linear range and low detection limits, which were consistent with the atomic absorption spectroscopy experiments.
Article
Chemistry, Analytical
Alexandra Belcovici, Carmen Ioana Fort, Laura Elena Muresan, Ioana Perhaita, Gheorge Borodi, Graziella Liana Turdean
Summary: ZnO nanoparticles were prepared using a precipitation technique and di-isopropyl amine as the precipitating agent. The nano-powder's morpho-structure and porosity were analyzed using FT-IR, XRD, SEM, and BET. A composite film was deposited to create a ZnO-NP-Nafion/GCE modified electrode, which was used for the detection of Pb2+ and Cu2+ in real water samples.
Article
Chemistry, Analytical
Heleni Panagopoulou, Anastasios Economou, Christos Kokkinos
Summary: This paper introduces a 3D-printed microfluidic device for the determination of Pb(II) and Cd(II) using SIA-ASV method. The device enables online preconcentration and static solution detection, achieving low detection limits and good repeatability.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Analytical
Vrysiida Partheni, Konstantinos Svarnias, Anastasios Economou, Christos Kokkinos, Peter R. Fielden, Sara J. Baldock, Nicholas J. Goddard
Summary: This work presents a sequential injection analysis method for simultaneous determination of Pb(II), Cd(II) and Zn(II) using an injection-moulded electrochemical fluidic chip. The method demonstrates high sensitivity and reliability, with quantification limits of 2.8 μg L-1 for Pb(II), 3.6 μg L-1 for Cd(II) and 4.2 μg L-1 for Zn(II). Additionally, the method was successfully applied to trace metal determination in fish food samples.
Article
Chemistry, Analytical
Varvara Pagkali, Eleftheria Stavra, Dionysios Soulis, Anastasios Economou
Summary: This work presents a rapid and low-cost method for fabricating paper-based analytical devices using commercial writing stationery and computer-controlled x-y plotter. The devices exhibit satisfactory mechanical and chemical resistance, as well as good analytical performance in optical and electrochemical sensing applications. The proposed manufacturing approach is simple, flexible, rapid, and fit-for-purpose, enabling the fabrication of sub-one-dollar PADs.
Article
Chemistry, Analytical
Georgia Poulladofonou, Christiforos Freris, Anastasios Economou, Christos Kokkinos
Summary: This study describes a novel DIY wearable 3D printed electrochemical finger (e-finger) that can rapidly detect the presence of date rape drugs and analgesics in alcoholic beverages on-site, which is of great importance for consumers and supervisory authorities. The e-finger can be printed at home using a low-cost 3D printer and operated with a smartphone, serving as a powerful screening tool.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Dionysios Soulis, Maria Trachioti, Christos Kokkinos, Anastasios Economou, Mamas Prodromidis
Summary: This work presents the fabrication of integrated electrochemical fluidic paper-based analytical devices (ePADs) using marker pen drawing and screen-printing, with electrodes deposited on paper using conductive carbon ink and fluidic patterns formed by drawing with a hydrophobic marker pen. The analytical utility of the electrochemical PADs was demonstrated through electrochemical determination of Pb(II) and Cd(II) using anodic stripping voltammetry. The proposed manufacturing approach allows for large-scale fabrication of low-cost disposable PADs for rapid on-site environmental monitoring.
Article
Chemistry, Analytical
Maria Pitsou, Christos Kokkinos, Anastasios Economou, Peter R. Fielden, Sara J. Baldock, Nickolas J. Goddard
Summary: This work presents a new environmentally friendly three-electrode electrochemical sensor for the on-site determination of toxic elements indium and thallium, achieving high sensitivity and accuracy through advanced electrochemical methods.
Article
Chemistry, Analytical
Georgios Bountas, Vlastimil Vyskocil, Bohumil Kratochvil, Alena Michalcova, Anastasios Economou, Jiri Barek
Summary: Nitrophenols are important environmental pollutants due to their genotoxic and ecotoxic properties. A novel silver porous electrode was successfully used for the determination of micromolar concentrations of 2-nitrophenol, 2,4-dinitrophenol, and 2,4,6-trinitrophenol.
Article
Chemistry, Analytical
Eleni Koukouviti, Alexios K. K. Plessas, Anastasios Economou, Nikolaos Thomaidis, Giannis S. S. Papaefstathiou, Christos Kokkinos
Summary: In this study, a 3D printed sensor modified with a water-stable complex of Fe(III) basic benzoate was used for the voltammetric detection of glucose in acidic epidermal skin conditions. The sensor showed excellent electrochemical performance and could detect glucose concentration in sweat.
Article
Chemistry, Analytical
Eleni Koukouviti, Dionysios Soulis, Anastasios Economou, Christos Kokkinos
Summary: The development of conductive patterns on wood substrates using laser-induced graphitization is described. A wooden tongue depressor is laser-treated to create an electrochemical biosensing device for oral fluid analysis. The device demonstrates proof-of-principle for simultaneous determination of glucose and nitrite in artificial saliva, making it a potential low-cost and disposable point-of-care chip.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Michailia Angelopoulou, Dimitra Kourti, Konstantinos Misiakos, Anastasios Economou, Panagiota Petrou, Sotirios Kakabakos
Summary: A silicon-based optoelectronic immunosensor for the detection of AFM1 in milk, chocolate milk, and yogurt has been developed. The immunosensor consists of ten Mach-Zehnder silicon nitride waveguide interferometers (MZIs) integrated on the same chip with the respective light sources. The detection method is based on a three-step competitive immunoassay and achieves accurate on-site AFM1 determination in milk samples.
Article
Chemistry, Analytical
Margarita Barbatsi, Anastasios Economou
Summary: This work presents a new programmable low-pressure chromatography method with post-column chemiluminescence (CL) detection for the determination of four parabens in cosmetic products. The method involves the use of a programmable mobile phase, a monolithic C18 column, and a flow-through CL detector. The method is fully automated and has a fast separation time, high sensitivity, and low waste production.
Review
Chemistry, Analytical
Leda Bousiakou, Omar Al-Dosary, Anastasios Economou, Veronika Subjakova, Tibor Hianik
Summary: This article introduces a novel electrochemical biosensing technology, aptasensors, which utilize aptamers as biological recognition elements. By combining the advantages of aptamers and electrochemical detection, these sensors can be used to fabricate inexpensive and portable analytical platforms for rapid detection or on-site monitoring. The immobilization strategies for aptamers on semiconductor-based substrates, including metal oxides, conductive polymers, and carbon allotropes, are discussed as important methods to preserve functionality and optimize sensor sensitivity.
Article
Chemistry, Analytical
Alexandra Karapa, Christos Kokkinos, Peter R. Fielden, Sara J. Baldock, Nickolas J. Goddard, Anastasios Economou
Summary: This work presents a novel three-electrode plastic sensor chip for the detection of trace Hg(II) using anodic stripping voltammetry. The chip is manufactured by injection moulding, which is an eco-friendly and sustainable method. It consists of three carbon-based electrodes embedded in a plastic holder, and the reference electrode is coated with Ag using e-beam evaporation. By analyzing the sample spiked with Au(III), gold nanoparticles are formed on the working electrode, and Hg(II) co-deposits with the gold nanoparticles to form an Au(Hg) amalgam. The accumulated Hg(II) is then stripped off the electrode and measured using an anodic square wave potential scan. The sensor shows a limit of detection of 0.4 μg/L for Hg(II) and a repeatability of 5.3% at the 20 μg/L level of Hg(III) (n = 10). It is successfully applied to various samples with recoveries ranging from 98% to 107%.
Article
Chemistry, Multidisciplinary
Panagiotis Oikonomopoulos, Varvara Pagkali, Evangelia Kritikou, Anthi Panara, Marios G. Kostakis, Nicolaos S. Thomaidis, Thomais G. Tziotzi, Anastasios Economou, Christos Kokkinos, Giannis S. Papaefstathiou
Summary: Two new Fe(II) Metal-Organic Frameworks (MOFs), namely 3D-Fe-MOF and 2D-Fe-MOF, were successfully synthesized and characterized by adjusting the reaction conditions to achieve the optimal degree of deprotonation of the bridging ligand. Both MOFs showed stability in water and had the ability to sorb glucose, although the sorption capacity was negligible. A 3D-Fe-MOF modified graphite paste sensor (GPE) was fabricated for non-enzymatic glucose detection in aqueous solution, and preliminary results were discussed using differential pulse voltammetry.
CHEMISTRY-SWITZERLAND
(2023)
Article
Multidisciplinary Sciences
Cristina Arino, Craig E. Banks, Andrzej Bobrowski, Robert D. Crapnell, Anastasios Economou, Agnieszka Krolicka, Clara Perez-Rafols, Dionysios Soulis, Joseph Wang
Summary: ESA is a trace electroanalytical technique used to determine metal cations, inorganic ions, organic compounds, and biomolecules. It offers advantages such as high sensitivity, low limits of detection, multi-analyte capability, low cost, potential for on-site analysis, and speciation capability.
NATURE REVIEWS METHODS PRIMERS
(2022)
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)
