Article
Engineering, Environmental
Jiacong Wu, Xinnan Ma, Chunmei Li, Xiangtong Zhou, Juan Han, Lei Wang, Hongjun Dong, Yun Wang
Summary: A novel photon-enzyme cascade catalysis system, composed of hybrid HRP-CN/Cu-3(PO4)(2) nanoflowers, was successfully constructed. This system exhibits excellent immobilized enzyme enzymatic properties and better tolerance to extreme conditions compared to free HRP. It shows outstanding degradation performance for bisphenol A (BPA) and can replace traditional systems for the harmless treatment of BPA in wastewater.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Analytical
Silvina V. Kergaravat, Silvia N. Fabiano, Adriana R. Soutullo, Silvia R. Hernandez
Summary: Glyphosate is the most widely used herbicide in Argentina, and there is controversy surrounding its safety. Two electrochemical screening methods based on horseradish peroxidase (HRP) inhibition have been developed for glyphosate detection.
MICROCHEMICAL JOURNAL
(2021)
Article
Biophysics
Sara Bocanegra-Rodriguez, Carmen Molins-Legua, Pilar Campins-Falco, Fabien Giroud, Andrew J. Gross, Serge Cosnier
Summary: The non-covalent modification of carbon nanotube electrodes with pyrene derivatives is a versatile approach to enhance the electrical wiring of enzymes for biosensors and biofuel cells. The study found that pyrene-modified electrodes showed improved catalytic reduction with horseradish peroxidase (HRP), indicating great potential for biosensing and biofuel cell applications.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Engineering, Chemical
Jiacong Wu, Xinnan Ma, Ting He, Juan Han, Yan Zhu, Chunmei Li, Yun Wang
Summary: The structural limitation of the photocatalyst itself hinders the increase in enzyme loading amount in the photo-enzyme coupling system. A g-C3N4-based photocatalyst ACN(45) with high enzyme loading amount was synthesized to address this issue. The channels in ACN(45) matched well with the size of the enzyme molecules, enabling a loading amount 6.3 times higher than pure g-C3N4. The ACN(45) channels also improved enzyme activity and stability, and reduced enzyme leaching. The high loading amount of the photo-enzyme coupling system enhanced the photocatalytic degradation of BPA, achieving a degradation rate 5.9 times higher than pure g-C3N4 within 1 hour. These findings provide a simple approach to design a photo-enzyme coupling system with high enzyme loading and stability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Jakub Zdarta, Oliwia Degorska, Katarzyna Jankowska, Agnieszka Rybarczyk, Adam Piasecki, Filip Ciesielczyk, Teofil Jesionowski
Summary: Immobilization of horseradish peroxidase in sodium alginate capsules and further trapping in poly(vinyl chloride) electrospun fibers enhances enzyme stability, reusability, catalytic properties, and substrate affinity, making it a promising tool for enzymatic conversion of pharmaceutically active ingredients.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Guangming Li, Hao Liu, Tianding Hu, Fang Pu, Jinsong Ren, Xiaogang Qu
Summary: This study reports a dimensionality engineering strategy to convert conventional 2D Fe-N-4 centers into 3D structures by integrating oxidized sulfur functionalities onto the carbon plane. The results suggest that oxidized sulfur functionalities can serve as binding sites for assisting substrate orientation and facilitating the desorption of H2O, resulting in an outstanding specific activity of up to 119.77 U mg(-1), which is 6.8 times higher than that of conventional FeN4C SAzymes.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Environmental Sciences
Jing-Jing Liu, Jong-Gook Kim, Hye-Bin Kim, Shakya Abeysinghe, Ying-Wu Lin, Kitae Baek
Summary: Enzyme-based biocatalytic treatment is an effective method for degrading organic pollutants. In this study, horseradish peroxidase (HRP) was immobilized on functionalized rice straw biochar using glutaraldehyde as a crosslinker. The biochar was pretreated by electrochemical and acid treatments to enhance its immobilizing ability.
Article
Nanoscience & Nanotechnology
Gema Vivo-Llorca, Angela Morella-Aucejo, Alba Garcia-Fernandez, Paula Diez, Antoni Llopis-Lorente, Mar Orzaez, Ramon Martinez-Manez
Summary: In this study, a novel nanodevice based on enzyme-functionalized gold nanoparticles for enzyme prodrug therapy (EPT) in breast cancer was designed and evaluated. The results showed that the nanodevice was effectively internalized by breast cancer cells and co-treatment with the nanodevice and enzyme prodrug significantly reduced the viability of breast cancer cells. The findings from three-dimensional tumor models also demonstrated the therapeutic effectiveness of this nanodevice.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2022)
Article
Medicine, Research & Experimental
Diana Humer, Valentina Furlanetto, Anna-Katharina Schruef, Angelika Wlodarczyk, Mario Kuttke, Christina Divne, Oliver Spadiut
Summary: Traditional cancer treatment relies on chemotherapy and radiation therapy, while targeted therapy shows promise with the need to address the immunogenicity issue of plant-derived enzymes. Research on unglycosylated HRP variants demonstrates the potential of targeting cancer cells.
BIOMEDICINE & PHARMACOTHERAPY
(2021)
Article
Environmental Sciences
Cyntia Ely, Diego Hoefling Souza, Mylena Fernandes, Viviane Trevisan, Everton Skoronski
Summary: This study evaluated the bioconversion of phenols in biorefinery wastewater using Horseradish peroxidase (HRP) and the Fenton process. The enzymatic treatment achieved a phenol conversion rate of 97.5%, while the Fenton process was used as a complementary method for further phenol removal. The combination of HRP and Fenton proved to be effective in treating biorefinery wastewater and removing phenols.
ENVIRONMENTAL TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Friederike Dehli, Cosima Stubenrauch, Alexander Southan
Summary: This study demonstrates the potential of biotinylated gelatin methacryloyl in the preparation of hydrogel foams and the successful control of substrate conversion rate by altering the hydrogel morphology.
MACROMOLECULAR BIOSCIENCE
(2022)
Review
Chemistry, Physical
Vishal Kandathil, Siddappa A. Patil
Summary: Nanozymes, with their intrinsic enzyme-like activity, have gained significant attention in the scientific community worldwide. The development of Single-Atom Nanozymes (SANs) presents numerous opportunities for real-time applications in various fields. By evenly distributing active sites on a solid support, SANs exhibit high efficiency, activity, and sustainability, similar to homogeneous catalysts.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Environmental
Shanshan Zhang, Dongliang Liu
Summary: We developed a two-step method for constructing a stable enzyme@MOF biomimetic membrane, which can efficiently remove micropollutants from water. The enzyme@MOF composite membrane integrates MOF adsorption, enzyme catalysis, and membrane separation functions, and exhibits outstanding stability and high efficiency. This new method provides a simple and fast approach to improve water purification.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Applied
Yishun Yao, Bo Zhang, Huiyun Pang, Yequn Wang, Hongfei Fu, Xiangwei Chen, Yunyang Wang
Summary: This paper investigates the effects of radio frequency (RF) heating on the activity and structure of horseradish peroxidase (HRP). HRP was heated to different temperatures (50, 70, and 90 degrees C) with varying electrode gaps (100, 110, and 120 mm). The results show that RF heating at 120 mm electrode gap leads to more severe enzyme inactivation and conformational destruction, indicated by changes in Soret band, secondary structure content, and tryptophan fluorescence intensity.
Article
Biochemistry & Molecular Biology
Xiaoqing Li, Fan Shi, Lisi Wang, Siyue Zhang, Lijun Yan, Xiaoping Zhang, Wei Sun
Summary: Black phosphorene quantum dots (BPQDs) with proven morphologies by TEM results were prepared using ultrasonic-assisted liquid-phase exfoliation and centrifugation. A novel electrochemical enzyme sensor was then developed by co-modification of BPQDs with horseradish peroxidase (HRP) on a carbon ionic liquid electrode (CILE). The presence of BPQDs accelerated the electron transfer rate between HRP and the electrode surface, resulting in well-shaped voltammetric peaks and a fast channel for direct electron transfer.
Article
Chemistry, Applied
Kirill A. Kurdin, Vitaly V. Kuznetsov, Vitaly V. Sinitsyn, Elena A. Galitskaya, Elena A. Filatova, Charles A. Belina, Keith J. Stevenson
Summary: Two simple synthetic procedures were developed for the synthesis of Pt-HxMoO3 composites, and the composition and structure of the catalysts were characterized using various physical methods. The prepared composites exhibited promising CO-tolerance, providing a potential method for the synthesis of CO-tolerant catalysts in practical fuel cells.
Article
Energy & Fuels
Pavel Loktionov, Natalia Kartashova, Dmitry Konev, Lilia Abunaeva, Anatoly Antipov, Eugeny Ruban, Alexander Terent'ev, Natalia Gvozdik, Maria Lyange, Andrey Usenko, Keith Stevenson
Summary: This study demonstrates the potential of using graphite foil filled with a copolymer of tetrafluoroethylene and vinylidene fluoride as current collectors in vanadium redox flow batteries, showing improved electrochemical stability while maintaining a slight decrease in electrical conductivity. Testing results show promising peak discharge power density and energy efficiency, suggesting successful application in redox flow battery stacks.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Energy & Fuels
N. A. Ovsyannikov, E. Romadina, N. O. Akhmetov, N. A. Gvozdik, A. Akkuratov, M. A. Pogosova, K. J. Stevenson
Summary: Composite membranes based on PVdF and LAGTP were investigated as prospective solid electrolytes for non-aqueous redox flow batteries, showing high Li-ion conductivity, uniform microstructure, and excellent stability. The membranes demonstrated lower resistance and faster crossover, making them a credible alternative to contemporary commercial membranes for all-organic redox flow batteries.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Chemical
Nikita Akhmetov, Nikolay Ovsyannikov, Nataliya Gvozdik, Mariam Pogosova, Sergey Ryazantsev, Svetlana Lipovskikh, Irina Krasnikova, Keith Stevenson
Summary: Redox flow batteries (RFBs) and lithium metal hybrid flow batteries (Li-HFBs) are energy storage devices, but the lack of suitable membrane hinders the progress of Li-HFBs.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Roman R. Kapaev, Elena V. Shklyaeva, Georgy G. Abashev, Keith J. Stevenson, Pavel A. Troshin
Summary: A nickel tetrathiooxalate (NiTTO) coordination polymer was developed as a cathode material for potassium batteries, and its electrochemical performance was investigated.
MENDELEEV COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Mohamed M. Elnaggar, Lyubov A. Frolova, Alexandra M. Gordeeva, Marina Ustinova, Hannah Laurenzen, Alexander Akkuratov, Sergey L. Nikitenko, Elena A. Solov'eva, Sergey Yu Luchkin, Yury S. Fedotov, Sergey A. Tsarev, Nadezhda N. Dremova, Keith J. Stevenson, Sergey Bredikhin, Selina Olthof, Sergey M. Aldoshin, Pavel A. Troshin
Summary: Perovskite solar cells (PSCs) have high efficiency and potential for low-cost manufacturing, but face challenges in operational stability. In this study, a new n-type copolymer was introduced as an electron transport material for PSCs, improving stability and performance.
Article
Electrochemistry
Nataliya A. Gvozdik, Anna A. Kurbatova, Nikolay A. Ovsyannikov, Mariam A. Pogosova, Keith J. Stevenson
Summary: The application of traditional cathode materials in suspensions can enhance the volumetric energy density of metal-ion flow batteries, and the addition of conducting additives is crucial for investigating intercalation materials effectively.
ELECTROCHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
V. I. Vlasov, N. A. Gvozdik, M. D. Mokrousov, S. V. Ryazantsev, S. Yu. Luchkin, D. A. Gorin, K. J. Stevenson
Summary: Preferential water transfer (PWT) is an important issue in vanadium flow batteries. In this study, a new method of controlling PWT through membrane modification is proposed. By balancing the concentrations of cation and anion groups on the membrane surface, the direction of PWT can be controlled. The results show that modified bilayer membranes have lower capacity fade and higher energy efficiency.
JOURNAL OF POWER SOURCES
(2022)
Article
Multidisciplinary Sciences
Semyon D. Shraer, Nikita D. Luchinin, Ivan A. Trussov, Dmitry A. Aksyonov, Anatoly Morozov, Sergey Ryazantsev, Anna R. Iarchuk, Polina A. Morozova, Victoria A. Nikitina, Keith J. Stevenson, Evgeny Antipov, Artem M. Abakumov, Stanislav S. Fedotov
Summary: The authors report the synthesis of a polyanion positive electrode active material that enables high-capacity and high-voltage sodium battery performance. The material shows promising results in terms of discharge capacity and average cell discharge voltage in coin cell configuration.
NATURE COMMUNICATIONS
(2022)
Article
Electrochemistry
Maria Makarova, Alexander Akkuratov, Maxim E. Sideltsev, Keith J. Stevenson, Elena Romadina
Summary: In this study, two novel organic molecules were synthesized and evaluated as anolytes in nonaqueous all organic redox flow batteries. These molecules exhibited improved performance compared to their unsubstituted counterparts, with lower redox potentials, increased solubility, reduced permeability, and higher stability.
Article
Chemistry, Physical
Sergey Yu. Luchkin, Maria A. Kirsanova, Dmitry A. Aksyonov, Svetlana A. Lipovskikh, Victoria A. Nikitina, Artem M. Abakumov, Keith J. Stevenson
Summary: Li-rich layered metal oxides have been extensively studied as potential positive electrode materials for Li-ion batteries. This research investigates the cycling-driven electrochemical activation process in Li-rich materials, which leads to an increase in reversible capacity. The activation process involves oxidation and reduction reactions, with the rate being influenced by the cycling rate.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Anatolii V. Morozov, Haemin Paik, Anton O. Boev, Dmitry A. Aksyonov, Svetlana A. Lipovskikh, Keith J. Stevenson, Jennifer L. M. Rupp, Artem M. Abakumov
Summary: This study successfully synthesized a thin LCO film on Ta-LLZO solid electrolyte using PLD technique, exhibiting a specific microstructure influenced by the thermodynamic effects of oxygen and lithium chemical potentials.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Vasily Artemov, Alexander Ryzhov, Henni Ouerdane, Keith J. Stevenson
Summary: We conducted a comparative study of the conductivity data of weak and strong electrolytes and discovered previously unknown differences and similarities. By considering the neutralization of excess protons and proton holes in water, we developed a model that explains the conductivity of aqueous solutions. Our results suggest that the aggregation of species in weak electrolytes may be the main factor causing the difference in conductivity between weak and strong electrolytes. These findings advance our understanding of the dynamic structure of aqueous electrolyte solutions and have important implications for nanofluidic, biological, and electrochemical systems.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Chemistry, Physical
Svetlana Melnik, Alexander Ryzhov, Alexei Kiselev, Aleksandra Radenovic, Tanja Weil, Keith J. Stevenson, Vasily G. Artemov
Summary: The electrodynamics properties of nanoconfined water have been significantly changed compared to bulk water, providing opportunities for safe electrochemical systems. We present a nanofluidic water-only battery that exploits the unusually high electrolytic properties of pure water under strict confinement. The device, composed of carbon-based nanomaterials, creates interconnected nanochannels filled with water between the separator and electrodes. The efficiency of the battery shows a maximum energy density at 3 nm, challenging the current metal-ion batteries. Our findings establish the electrodynamic fundamentals of nanoconfined water and pave the way for low-cost and inherently safe energy storage solutions needed in the renewable energy sector.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Roman R. Kapaev, Andriy Zhugayevych, Sergey Ryazantsev, Dmitry A. Aksyonov, Daniil Novichkov, Petr Matveev, Keith J. Stevenson
Summary: NiBTA is a promising material for fast-charging metal-ion batteries, with high capacities, fast charge-discharge kinetics, and compatibility with various cations. It undergoes structural rearrangements in different electrolyte systems and its charge storage mechanism involves reversible two-electron reduction.
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)