Article
Chemistry, Analytical
Reyhan Dincer, Sukriye Ulubay Karabiberoglu, Zekerya Dursun
Summary: This study proposes a dependable approach for the selective and sensitive identification of zinc, cadmium and lead in different sample matrices using an over-oxidized poly(xylenol blue) film glassy carbon electrode coated with bismuth (Bi/PXBov.ox/GCE). The best conditions for determining these elements were found to be a 0.1 mol L-1 acetate buffer solution as supporting electrolyte (pH 4.5), -1.5 V accumulation potential, and 180 s accumulation duration. Under these conditions, the detection limits of Zn(II), Cd(II) and Pb(II) were 3.20 μg L-1, 0.21 μg L-1 and 1.98 μg L-1, respectively. Moreover, this novel, cheap and easy-to-prepare Bi/PXBov.ox/GCE was successfully used for the analysis of Zn(II), Cd(II) and Pb(II) in lipstick samples, with consistent results compared to inductively coupled plasma mass spectrometry.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Hui Li, Jie Zhao, Shifan Zhao, Guofeng Cui
Summary: A novel three-electrode sensor was developed for simultaneous detection of Pb(II), Cd(II), and Zn(II) by depositing a bismuth film on a screen-printed gold working electrode. The sensor showed a wide linear range, low detection limits, good anti-interference ability, and stability. Such sensors are expected to be useful for portable heavy metal detection applications.
MICROCHEMICAL JOURNAL
(2021)
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
Megumi Kasuno, Hitomi Osuga, Katsuya Shina, Takuya Yamazaki
Summary: A flow coulometric electroanalytical system was developed to determine the Pb(II) content with high efficiency and low detection limits. Selective determination of Pb(II) was successfully achieved by adjusting the electrodeposition potential.
Article
Chemistry, Multidisciplinary
Enidale Yazie Muluneh, Menbere Leul Mekonnen, Siraye Esubalew Debebe
Summary: This study reported the use of Square Wave Anodic Stripping Voltammetry technique with a bismuth-modified glassy carbon electrode for the simultaneous determination of lead and cadmium content in paints. The results showed excellent percent recovery values and the Pb and Cd contents in these products have not been reported yet. The method is not significantly influenced by the paint matrix and can be used as an alternative analytical method for the determination of heavy metals in the paint matrix. The amount of Pb(II) and Cd(II) in the given paints are below the permissible levels based on the regulation of Ethiopia, indicating their safety for use in the country.
Article
Chemistry, Multidisciplinary
Watsaka Siriangkhawut, Kraingkrai Ponhong, Piyanete Chantiratikul, Parita Mayotha
Summary: Stripping analysis using a bismuth-antimony film electrode was used to determine trace cadmium and lead in local rice wine. The pre-treatment parameters for sample mineralization were optimized, and linear calibration graphs were obtained for cadmium and lead. The developed method was successful and validated through flame atomic absorption spectrometry. Most samples were not contaminated, and one sample had a lower amount of cadmium than the maximum permitted level in wine.
Article
Chemistry, Physical
Malgorzata Grabarczyk, Cecylia Wardak, Robert Piech, Agnieszka Wawruch
Summary: This study describes the practical application of a novel, eco-friendly electrochemical sensor based on low-dimensional structures, spherical glassy carbon microparticles, and multiwall carbon nanotubes. The sensor, modified with a bismuth film, was used for the determination of Cd(II) using anodic stripping voltammetry. The method showed good sensitivity with a linear range of 2 x 10(-9) to 2 x 10(-7) mol L-1 Cd(II) and a detection limit of 6.2 x 10(-10) mol L-1 Cd(II).
Article
Electrochemistry
Domen Obrez, Mitja Kolar, Nikola Tasic, Samo B. Hocevar
Summary: Copper electrodes have interesting characteristics for electrochemical stripping analysis and can be an alternative to mercury electrodes. Different types of copper-based electrodes were studied for the detection of trace metal ions. Most of the copper electrodes showed favorable performances for stripping voltammetry.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Analytical
Grace W. Muna, Emily Barrera, Lucas Robinson, Hiba Majeed, Keon Jones, Abigail Damschroder, Andrew Vila
Summary: This study reports on the electroanalytical performance of a glassy carbon electrode (GCE) modified with antimony and bismuth (Sb/Bi-GCE) for detecting heavy metal ions, using lead and cadmium as model analytes. The Sb/Bi-GCE showed superior performance compared to Bi-GCE and Sb-GCE surfaces. For instance, the limit of detection for lead was 0.01 ppb using Sb/Bi-GCE, while it was 0.1 ppb on Bi-GCE and 1 ppb on Sb-GCE.
Article
Electrochemistry
Luz E. Rebolledo-Perales, Giaan A. Alvarez Romero, Israel Ibarra, Carlos Andres Galan-Vidal, Juan Francisco Flores-Aguilar, I Perez-Silva
Summary: A highly selective sensor based on carbon paste electrodes (CPE) and ion-imprinted polymers (IIP) was proposed for the analysis of lead (II) in real water samples. By optimizing the analysis parameters, a linear concentration range and low detection limit were achieved. The method allows accurate quantification of lead (II) in complex samples without pre-treatment.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Analytical
Ceren Yildiz, Dilek Eskikoy Bayraktepe, Zehra Yazan, Muserref Onal
Summary: This study presents a electrochemical sensor based on pencil graphite electrode and its application in the quantification of heavy metals. The sensor has a high conductive surface area, capable of producing high signals, making it more suitable for electrochemical analysis compared to unmodified electrodes.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Keriman M. Abd-Elsabur, Mohamed Abd-Elsabour, Fawzy H. Assaf, Ibrahem M. A. Hasan
Summary: A new sensor was successfully fabricated for the simultaneous determination of Cd(II) and Cu(II) in water samples. The sensor exhibited simple, rapid, accurate, and highly sensitive characteristics, making it suitable for monitoring heavy metal pollutants in the hydrosphere.
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, Multidisciplinary
Ceren Yildiz, Dilek Eskikoey Bayraktepe, Zehra Yazan
Summary: Thin-film disposable screen-printed electrodes modified in situ with bismuth and mercury coatings were prepared to enhance the sensitivities and limits of detection of heavy metal ions. The Bi/Hg film electrode exhibited good analytical performance with low detection limits, excellent repeatability, and reasonable interferences by various inorganic species.
MONATSHEFTE FUR CHEMIE
(2021)
Article
Chemistry, Multidisciplinary
Hai D. Tran, Uyen P. N. Tran, Dinh Quan Nguyen
Summary: This study presents a method for the detection of Cd2+ and Pb2+ using a MWCNTs paste electrode and a mixture of ionic liquid. The feasibility and accuracy of the electrode were validated through experiments.
JOURNAL OF SAUDI CHEMICAL SOCIETY
(2023)
Review
Chemistry, Multidisciplinary
Qun Wang, Qiang Xue, Tao Chen, Jiawei Li, Yuehua Liu, Xiaohan Shan, Fei Liu, Jianbo Jia
Summary: The abuse of antibiotics leads to drug-resistant strains and environmental pollution, emphasizing the need for effective detection techniques. Electrochemical sensors offer advantages such as high sensitivity and good selectivity, making them a focus in this field. The review discusses electrode modification methods, practical applications, and future challenges, aiming to provide new ideas for the development of antibiotics electrochemical sensors.
CHINESE CHEMICAL LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Haohui Liu, Siyu Wang, Ling Long, Jianbo Jia, Minchao Liu
Summary: Designing Co,N-codoped carbon nanocomposites can enhance the efficiency and stability of oxygen reduction reaction, thanks to the increased active sites exposure and improved conductivity and mass transport.
Article
Engineering, Chemical
Peng Zhang, Long Jiang, Lingfeng Liu, Mingjie Li, Gaoyi Xie, Xiaolong Xu, Jianbo Jia, Changyu Liu, Mengchen Zhang
Summary: This study proposes a new method of manipulating wrinkles in graphene oxide (GO) membranes as new transport pathways through stress-driven wrinkle engineering. By intentionally tailoring the wrinkles, the GO membranes achieve high porosity and low defectiveness, resulting in improved molecular separation performance.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Liang Wang, Huan Lv, Qian Yang, Yiliang Chen, Junjie Wei, Yiyuan Chen, Ci'en Peng, Changyu Liu, Xiaolong Xu, Jianbo Jia
Summary: A simple strategy was developed to prepare a biofilm reactor (BFR) sensor for universal biochemical oxygen demand (BOD) determination. The BFR sensor exhibited efficient degradation of various organic substances and showed excellent performance in BOD determination of different water samples.
Article
Biology
Ce Chen, Mingyue He, Xueting Li, Lidong Yu, Yi Liu, Yan Yang, Li Li, Jianbo Jia, Bingsheng Li
Summary: This study found that both hydrogen peroxide and Diethyl Maleate can activate the Nrf2/ARE signaling pathway in zebrafish at 120 hpf. Hydrogen peroxide regulates the demethylation of the maft promoter by inhibiting methyltransferase expression, while DEM does not significantly regulate the methylation of the Nrf2/ARE signaling pathway. However, under oxidative stress, methyltransferase inhibitors can activate the expression of maft and promote the activation of the Nrf2/ARE signaling pathway.
Article
Engineering, Environmental
Tao Yang, Jiamin Mai, Mengyang Zhu, Qiqi Peng, Cui Huang, Sisi Wu, Qinying Tan, Jianbo Jia, Jingyun Fang, Jun Ma
Summary: This study introduced UVA-LED photolysis of Mn(VII) for degrading micropollutants and found that factors like light intensity, radiation wavelengths, pH, and water constituents affect the degradation rates of DCF and 4-CP. RMnS play a significant role in the degradation process.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Electrochemistry
Qian Yang, Mingyang Lai, Dawei Liu, Junyuan Zhang, Yang Zhang, Changyu Liu, Xiaolong Xu, Jianbo Jia
Summary: A low-cost dual-chamber microbial fuel cell (MFC) was constructed as a biosensor for the rapid determination of biochemical oxygen demand (BOD) in domestic sewage. The MFCs-BOD biosensor reached a steady state within 1 week and showed high current and power density. Compared with other studies, this biosensor had a shorter start-up period, wider determination range, and faster determination time. Analysis of the microbial community structure revealed significant changes after domestication, with Proteobacteria and Enterobacteria being the dominant electrogenic bacteria. The results confirmed the reliability and applicability of the MFCs-BOD biosensor in determining BOD in sewage, laying a solid foundation for its future application.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Article
Chemistry, Physical
Ping Wei, Yiming Chen, Tao Zhou, Zirong Wang, Yue Zhang, Hongjuan Wang, Hao Yu, Jianbo Jia, Kun Zhang, Chao Peng
Summary: Ti(3)C(2)Tx (T = -O) MXene quantum dots (MQDs) and N-doped carbon dots (NCDs) were interspersed on CdS nanoparticles to enhance the photocatalytic hydrogen production. The hydrogen production rate of the composite material reached 5.64 mmol g(-1) h(-1), which was significantly higher than that of bare CdS and Pt/CdS. The research also improved the cycling stability of CdS-based photocatalysts.
Article
Nanoscience & Nanotechnology
Yiming Chen, Zirong Wang, Yue Zhang, Ping Wei, Wenkang Xu, Hongjuan Wang, Hao Yu, Jianbo Jia, Kun Zhang, Chao Peng
Summary: A ternary CdS@Nb2O5/Nb2CTx heterojunction with hierarchical structure was designed to promote photocatalytic hydrogen (H2) evolution. The optimized photocatalyst exhibited HER rates of 1501.7 and 2715.8 mu mol g-1 h-1, with 12.4% and 26.1% AQE at 420 nm, respectively, using Na2S/Na2SO3 and lactic acid as sacrificial agents. Its HER performance was 10.9-fold higher than pure CdS and remained 87% activity after five cycle tests. This work opens possibilities for Nb-based MXene photocatalysts for solar energy conversion and other applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Zirong Wang, Yue Zhang, Yiming Chen, Ping Wei, Hongjuan Wang, Hao Yu, Jianbo Jia, Kun Zhang, Chao Peng
Summary: The surface groups of MXene play a crucial role in the performance of MXene-based photocatalysts. In this study, TiO2 nano-whiskers were grown on Ti3C2TX through a hydrothermal and post-heat treatment process, with the surface groups of Ti3C2TX unified-O adsorption. The resulting urchin-like TiO2/Ti3C2OX composite exhibited efficient activity for photocatalytic hydrogen evolution and levofloxacin (LEV) degradation.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Jiamin Mai, Ge Zeng, Linqian An, Maoju Jiang, Peng Su, Qixiao Lv, Xiangyang Hou, Xiujuan Kong, Jianbo Jia, Tao Yang, Jun Ma
Summary: This study found that the presence of iodide (I-) can enhance the transformation of phenolic pollutants by peracetic acid (PAA) in wastewater treatment. Hypoiodous acid (HOI) was identified as the reactive species in the PAA/I- system. Increasing the doses of PAA and I- promoted the transformation of phenolic pollutants, but the effect was less significant at higher doses. Additionally, the presence of H2O2 hindered the transformation process, while chloride and bromide accelerated it. The transformation products of PAA/I- showed higher cytotoxicity than the parent pollutants.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Tao Yang, Cui Huang, Linqian An, Ge Zeng, Juan Li, Changyu Liu, Xiaolong Xu, Jianbo Jia, Jun Ma
Summary: This study reports for the first time that solar light irradiation of hexavalent chromium (Cr(VI)) can effectively degrade various micropollutants. The solar light/Cr(VI) system increases the removal efficiency of selected micropollutants by 13.3-64.8% compared to direct solar photolysis. The major reactive species in this system is hydroxyl radical (&·OH).
Article
Engineering, Environmental
Tao Yang, Linqian An, Ge Zeng, Jiamin Mai, Yuying Li, Jinchuan Lian, Haochen Zhang, Juan Li, Xiaoxiang Cheng, Jianbo Jia, Minchao Liu, Jun Ma
Summary: Periodate (PI) was introduced into the In2O3/Vis-LED process to enhance the formation of center dot OH and promote the degradation of organic foulants. Results showed that PI significantly increased the removal of sulfamethoxazole (SMX) in the process. Electrochemical analyses demonstrated that PI effectively inhibited the recombination of photogenerated electron-hole pairs, leading to the production of center dot OH.
Article
Engineering, Environmental
Tao Yang, Linqian An, Ge Zeng, Maoju Jiang, Juan Li, Changyu Liu, Jianbo Jia, Jun Ma
Summary: This study investigates the efficiency and mechanism of Fe(II)/PAA and PAA processes in oxidizing p-ASA and As(III). Fe(II)/PAA process rapidly degrades p-ASA to the toxic As(V) at neutral to acidic pHs, while PAA process is effective in oxidizing As(III). The generation of hydroxyl radicals and organic radicals from PAA contributes to the degradation of p-ASA, and PAA shows potential for the oxidation of As(III).
Article
Chemistry, Multidisciplinary
Ling Long, Haohui Liu, Jianbo Jia, Yelong Zhang, Shaojun Dong
Summary: This study developed a bifunctional electrocatalyst consisting of Co0.7Fe0.3 alloy nanoparticles confined in N-doped carbon with a yolk-shell structure in multi-beaded fibers, exhibiting excellent OER and ORR performance. The hierarchical structure with abundant mesopores, high BET surface area, good electronic conductivity, and uniformly distributed active sites showed superior electrochemical performance compared to commercial catalysts. The Co0.7Fe0.3@NC2:1-800 Zn-air battery displayed higher open circuit voltage, larger power density, and better cycling stability, suggesting potential applications in energy conversion systems.
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)
