Article
Biochemistry & Molecular Biology
Waree Boonmee, Kritsada Samoson, Janjira Yodrak, Adul Thiagchanya, Apichai Phonchai, Warakorn Limbut
Summary: A simple and highly sensitive electrochemical sensor was developed for alprazolam, showcasing good selectivity, repeatability, and recovery. The sensor operated under optimized conditions and displayed excellent analytical performance in detecting alprazolam in beverages.
Article
Chemistry, Analytical
Prapaporn Sangkaew, Aroonsri Ngamaroonchote, Kullavadee Karn-Orachai
Summary: A sensitive and selective electrochemical sensor has been developed for simultaneous quantification of Mn(II) and Cr(VI) using a composite of graphene oxide (GO) and manganese oxide modified screen printed carbon electrode (GO-Mn2O3/SPCE). The sensor shows good sensing performance by mixing GO prepared by modified Hummer's method with Mn2O3 of proper particle size. The sensor can be used for water quality monitoring in real samples, based on the formation of Mn-O and Cr-O on the modified electrode with the assistance of oxygen moieties provided by both Mn2O3 NPs and GO.
Article
Chemistry, Analytical
Liangyun Yu, Liangju Sun, Qi Zhang, Jingjing Zhang, Bairen Yang, Mingquan Huang, Yawen Zhou, Baocai Xu, Xiaoya Hu
Summary: This study developed an electrochemical sensor modified with TiO2-NH2@COFDPTB for the determination of Mn2+ in Chinese liquor. The TiO2-NH2@COFDPTB was synthesized through the controllable growth of COFDPTB onto the surface of TiO2-NH2 using a Schiff-base condensation reaction. Characterization studies confirmed the excellent properties of TiO2-NH2@COFDPTB and the improved electrochemical response. The sensor exhibited good linearity in a wide range of concentrations and showed competitive performance for Mn2+ determination, with successful application in liquor samples.
ANALYTICAL METHODS
(2023)
Article
Chemistry, Analytical
Zandile D. Leve, Nazeem Jahed, Nelia A. Sanga, Emmanuel I. Iwuoha, Keagan Pokpas
Summary: A simple, highly sensitive, accurate, and low-cost electrochemical sensor was developed for the determination of over-the-counter painkiller, paracetamol (PC). The enhanced sensing capabilities of the developed sensor were fabricated by the single-step modification of disposable pencil graphite electrodes (PGEs) with the simultaneous electrochemical reduction in graphene oxide and antimony (II) salts.
Review
Chemistry, Physical
Edyta Wlazlowska, Malgorzata Grabarczyk
Summary: The main purpose of this review is to introduce methods of adsorptive stripping voltammetry for determining trace amounts of VO2(+) in various types of samples. The achieved detection limits using different working electrodes are presented. Factors influencing the obtained signal, including the complexing agent and working electrode selection, are discussed. The paper also analyzes the influence of foreign ions and organic matter on vanadium signal in natural samples, and presents methods of elimination related to surfactants in samples. The simultaneous determination of vanadium with other metal ions using adsorptive stripping voltammetry is characterized. The practical use of the developed procedures, mainly for analyzing food and environmental samples, is summarized in tabular form.
Article
Chemistry, Analytical
Scarlett Aguilera, Erick Flores, Rodrigo Segura, Herna Barrientos, Paulina Marquez, Camilo Garcia, Felipe Matamala-Troncoso, Jaime Pizarro, Maria Aguirre
Summary: In this study, a glassy carbon electrode modified with reduced graphene oxide was prepared and used for the determination of zaleplon. The modified electrode showed good accuracy and reproducibility in detecting zaleplon in saliva samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Electrochemistry
Jenjira Saichanapan, Kiattisak Promsuwan, Kasrin Saisahas, Asamee Soleh, Kah Haw Chang, Ahmad Fahmi Lim Abdullah, Warakorn Limbut
Summary: The study used a glassy carbon electrode modified with hierarchical graphene oxide nanoplatelets to detect tramadol, finding that it had a faster charge transfer rate and larger active surface area compared to an electrode modified with graphene oxide nanosheets, increasing the anodic current response of tramadol. The sensor showed high sensitivity, low detection limit, good precision, and good anti-interference, with potential for tramadol detection.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Sanghyeon Moon, Devarayapalli Kamakshaiah Charyulu, Jaewon Lee, Taewan Kim, Jiwon Kim, Wonjoo Lee, Kiyoung Lee
Summary: In this study, the electrochemical detection of 2,4,6-trinitrotoluene (2,4,6-TNT) using a rutile TiO2 layer was successfully achieved. The rutile TiO2 layer was fabricated through chemical bath deposition and enhanced by calcination. The results demonstrated that the calcined TiO2 layer exhibited improved crystallinity and active site density, leading to enhanced performance in 2,4,6-TNT detection.
Article
Multidisciplinary Sciences
Sanghyeon Moon, JeongEun Yoo, Wonjoo Lee, Kiyoung Lee
Summary: In this study, self-organized ZnO nanorod arrays were synthesized on FTO glasses and ZnO nanoparticles using chemical bath deposition (CBD) method to enhance the detection properties of ZnO nanostructural electrodes. The ZnO electrodes on the two different substrates were characterized and their detection performance was electrochemically measured in a 2,4,6-trinitrotoluene (2,4,6-TNT) solution. The width of the ZnO nanorods played a role in determining the differences in current densities between the ZnO electrodes, with F-CBD electrodes showing a approximately 45% higher detection efficiency compared to S-CBD electrodes.
Article
Chemistry, Analytical
Nandita Jaiswal, Ida Tiwari
Summary: The study utilized nS@GO for the detection of norepinephrine under various conditions. Through physical characterization and electrochemical techniques, the formation of nanocomposite material was confirmed, allowing for accurate quantification of norepinephrine and determination of detection limits.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Marine
Chenchen Wang, Yongsheng Luan, Dawei Pan, Yuxi Lu, Haitao Han, Shenghui Zhang
Summary: The concentrations of total dissolved iron (TdFe) and dissolved reactive iron (DrFe) in the Northern coastal China seawater were measured using cathodic stripping voltammetry (CSV). The results showed that the concentration of DrFe remained relatively stable over the study period, while the concentration of TdFe varied more widely. The changes in temperature, chlorophyll a concentrations, and nutrients influenced the supply and consumption of DrFe.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Electrochemistry
Marzena Adamczyk, Malgorzata Grabarczyk
Summary: A novel solid bismuth microelectrode combined with adsorptive stripping voltammetry was used to develop a simple and fast method for tin determination. The method involved the formation of a tin complex with cupferron in solution and deposition on the solid bismuth microelectrode. Optimal parameters were determined to achieve a linear response and a low detection limit for Sn(II), and interferences from foreign ions and organic matrix were studied.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Analytical
Sasa Marcinek, Josep Galceran, Irena Ciglenecki, Dario Omanovic
Summary: A new method called PB-HS, based on the influence of humic substances on the background current, was proposed for the determination of HS in natural waters. The method was discussed in detail and compared with other quantification methods. PB-HS showed slightly better sensitivity than classical spectrophotometry and had the advantage of not requiring any reagent addition and being applicable in a wide salinity range.
Article
Chemistry, Analytical
Thi Kim Thuong Nguyen, Thi Huong Giang Le, Nhan Thi Thanh Pham, Thi Hoa Hoang, Ha Phuong Nguyen, Mua Xuan Nguyen, Minh Huong Giang Dang, Huy Hoang Do, Thi Thao Ta, Xuan Thanh Bui
Summary: In this study, a glassy carbon electrode modified with electrochemical reduced graphene oxide (ErGO/GCE) was used to determine amaranth in soft drink and candy samples by adsorptive stripping voltammetry. The ErGO/GCE was fabricated through an electrochemical reduction process, and the characteristics of the graphene oxide and reduced graphene oxide were studied. The optimal conditions for determining amaranth were determined, and the proposed method can be applied for amaranth dye analysis in food.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Yanjie Zheng, Li Chen, Xinyang Yin, Fei Lin, Yichun Xu, Xinhua Lin, Shaohuang Weng
Summary: A dual-mode electrochemical biosensor has been developed for the sensitive detection of femtomolar miRNA-155 using electrochemiluminescence (ECL) and adsorptive stripping voltammetry (AdsSV). The sensor demonstrates high selectivity, reproducibility and long-term stability, providing a practical platform for rapid, simple, selective and reliable detection of miRNAs.
MICROCHEMICAL JOURNAL
(2021)
Article
Electrochemistry
Kiattisak Promsuwan, Chompoonut Kaewjunlakan, Jenjira Saichanapan, Asamee Soleh, Kasrin Saisahas, Yudtapum Thipwimonmas, Supatinee Kongkaew, Proespichaya Kanatharana, Panote Thavarungkul, Warakorn Limbut
Summary: A new strategy for enhancing the electrochemical adsorption and determination of hydroquinone was proposed by modifying an electrode with hierarchical structure of poly(phenol red) microparticles. The electrode showed good sensitivity, repeatability, reproducibility, and anti-interference properties for quantifying hydroquinone in skin whitening products. The developed poly(phenol red) hierarchical micro-structure has potential applications in electrochemical sensors or biosensors.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Supatinee Kongkaew, Proespichaya Kanatharana, Panote Thavarungkul, Warakorn Limbut
Summary: A cost-effective flexible graphene working electrode (FGWE) was fabricated using overhead projector transparent film (OPTF) and exhibited superior performance in detecting acetaminophen (ACT) with good sensitivity and accuracy. It can be potentially used as a platform for cost-effective flexible electrochemical sensors in pharmaceutical applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Electrochemistry
Kamonchanok Torrarit, Kiattisak Promsuwan, Asamee Soleh, Kasrin Saisahas, Adul Thiagchanya, Apichai Phonchai, Warakorn Limbut
Summary: An electrochemical approach for atropine sensing using Nf/p-GNF/E electrode was proposed, characterized by SEM, FT-IR, and electrochemical techniques. The modified electrode showed excellent electrochemical oxidation of atropine with good repeatability and resistance to interference from other substances.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Electrochemistry
Supatinee Kongkaew, Kavinna Joonyong, Proespichaya Kanatharana, Panote Thavarungkul, Warakorn Limbut
Summary: A PB-SPWE was fabricated for continuous detection of free-Cl in swimming pool water samples, achieving high-throughput analysis with good accuracy and precision. The combination of PB-SPWE and FI-AMP can be applied to monitor swimming pool water quality, minimizing the risk to swimmers' health.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Analytical
Kasrin Saisahas, Asamee Soleh, Kiattisak Promsuwan, Apichai Phonchai, Nabeesathul Sumayya Mohamed Sadiq, Way Koon Teoh, Kah Haw Chang, Ahmad Fahmi Lim Abdullah, Warakorn Limbut
Summary: An portable electrochemical sensor has been developed for the determination of xylazine in beverages. The sensor, based on a graphene nanoplatelets-modified screenprinted carbon electrode, showed high sensitivity and good repeatability. By spiking six beverage samples, the accuracy of the sensor was validated.
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2021)
Article
Electrochemistry
Salinee Khoka, Kritsada Samoson, Janjira Yodrak, Adul Thiagchanya, Apichai Phonchai, Warakorn Limbut
Summary: A glassy carbon electrode was electrochemically pretreated to detect clonazepam with high sensitivity, achieving optimal electrochemical reduction conditions and excellent analytical performance. The sensor exhibited remarkable sensitivity, good repeatability, and was successfully utilized for clonazepam measurement in beverage samples.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Analytical
Suparat Cotchim, Panote Thavarungkul, Proespichaya Kanatharana, Phuvadol Thanakiatkrai, Thitika Kitpipit, Warakorn Limbut
Summary: A novel strategy was developed for the extraction, detection, and quantification of trace-level DNA using a composite material. The DNA sensor showed linear ranges and a high limit of detection, successfully detecting trace DNA in real samples with good recoveries.
Article
Biochemistry & Molecular Biology
Waree Boonmee, Kritsada Samoson, Janjira Yodrak, Adul Thiagchanya, Apichai Phonchai, Warakorn Limbut
Summary: A simple and highly sensitive electrochemical sensor was developed for alprazolam, showcasing good selectivity, repeatability, and recovery. The sensor operated under optimized conditions and displayed excellent analytical performance in detecting alprazolam in beverages.
Article
Chemistry, Physical
Kiattisak Promsuwan, Asamee Soleh, Kasrin Saisahas, Jenjira Saichanapan, Proespichaya Kanatharana, Panote Thavarungkul, Chunxian Guo, Chang Ming Li, Warakorn Limbut
Summary: A unique nanocomposite was fabricated for dopamine sensing, showing excellent performance and high selectivity. The sensor accurately determined dopamine in human serum, with good stability and reproducibility.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Kanokwan Chaiendoo, Kessarin Ngamdee, Warakorn Limbut, Chatree Saiyasombat, Wutthikrai Busayaporn, Somlak Ittisanronnachai, Vinich Promarak, Kiattisak Promsuwan, Panote Thavarungkul, Proespichaya Kanatharana, Wittaya Ngeontae
Summary: A new approach for nitrite ion detection based on the oxidative etching of CTAB@AuNPs to generate Au3+ was proposed in this study, enabling the indirect determination of nitrite ion concentration. The fluorescent DAP generated can be used to trace the concentration of nitrite ions, showing linear fluorescence enhancement with increasing nitrite ion concentration in the range of 0-60 μM and with a LOD of 0.07 μM. The sensor demonstrated satisfactory results for nitrite ion detection in GSR.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Yudtapum Thipwimonmas, Janjira Jaidam, Kritsada Samoson, Vacharachai Khunseeraksa, Apichai Phonchai, Adul Thiangchanya, Kah Haw Chang, Ahmad Fahmi Lim Abdullah, Warakorn Limbut
Summary: A simple, rapid, and environmentally-friendly spectrophotometric method for nitrite detection was developed based on a redox reaction with iodide ions in an acidic condition. By optimizing iodide ions concentration, hydrochloric acid concentration, and reaction time, the method showed good repeatability, high sample throughput, and accuracy, making it suitable for rapid screening of gunshot residue in crime scene investigations.
Article
Chemistry, Applied
Krittapas Kaewnu, Kritsada Samoson, Adul Thiangchanya, Apichai Phonchai, Warakorn Limbut
Summary: A colorimetric indicator cube designed for smart packaging detects ethanol in preserved baby mangoes by indicating color variations. The cube, made of porous melamine foam, shows distinct color changes over a range of ethanol concentrations and maintains good repeatability and storage stability.
Article
Chemistry, Analytical
Nuntanut Chaitong, Nutnicha Chansud, Naphatsakorn Orachorn, Warakorn Limbut, Opas Bunkoed
Summary: The optosensor designed for detecting ultra-trace levels of cefoperazone utilized synthesized magnetic composite sensing probes with porous graphene, quantum dots, magnetite nanoparticles, and a highly specific polymer. The sensor showed good linearity towards cefoperazone, high specificity, and successful detection in milk with promising recoveries and consistency.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Kiattisak Promsuwan, Asamee Soleh, Kasrin Saisahas, Jenjira Saichanapan, Adul Thiangchanya, Apichai Phonchai, Warakorn Limbut
Summary: The chemical synthesis of a colloidal micro-catalyst of palladium nanoparticles decorated on polyaniline-coated carbon microspheres (PdNP-PANi/CMs) is described in this study. The catalyst was used to modify the electrode interface of a highly sensitive non-enzymatic sensor, showing excellent electrocatalytic stability and good repeatability, reproducibility, and selectivity. The developed sensor demonstrated its applicability in detecting hydrogen peroxide in human seminal fluid, with recoveries ranging from 97 +/- 2% to 102 +/- 3%. The good performances of this colloidal micro-catalyst suggest its potential for other sensing, biosensing, and biofuel cell applications.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Kasrin Saisahas, Asamee Soleh, Sunita Somsiri, Patthamaporn Senglan, Kiattisak Promsuwan, Jenjira Saichanapan, Proespichaya Kanatharana, Panote Thavarungkul, Khai Lee, Kah Haw Chang, Ahmad Fahmi Lim Abdullah, Kunanunt Tayayuth, Warakorn Limbut
Summary: A 3D porous graphene structure was successfully induced by CO2 laser, and the highly flexible electrode fabricated using this method showed excellent performance and anti-interference ability in the detection of methamphetamine.
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)
