Review
Chemistry, Organic
Apsara K. Herath, Carl J. Lovely
Summary: This review discusses various strategies for incorporating the signature pyrrole carboxamide moiety in the total syntheses of pyrrole-imidazole alkaloids (PIA). These alkaloids, derived from sponges, exhibit a wide range of biological activities, interesting skeletal diversity, and complexity.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2021)
Article
Electrochemistry
A. A. Nekrasov, O. D. Iakobson, O. L. Gribkova
Summary: In this study, in situ Raman spectroelectrochemical investigation was conducted on the electropolymerization of pyrrole in the presence of sulfonated polyelectrolytes. The results showed that the form of polyelectrolyte significantly influenced the chemical structure of the forming PPy-polyelectrolyte complexes, leading to different film properties.
ELECTROCHIMICA ACTA
(2021)
Article
Biochemistry & Molecular Biology
Mei-Jun Chu, Meng Li, Yongda Zhao
Summary: This review comprehensively summarizes 84 dimeric pyrrole-imidazole alkaloids (PIAs) discovered from 1981 to September 2022, including their source organisms, chemical structures, biological activities, and biosynthesis. The PIA dimers are classified and presented based on their carbon skeleton features and biosynthetic pathways. Additionally, relevant summaries of the source organisms and associated bioactivities of these compounds belonging to different chemical classes are provided, which will contribute to the understanding of the fascinating chemistry and biology of these unusual PIA dimers.
BIOORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Vandana Srivastava, Mohammad Salman, Dheeraj Singh Chauhan, Safwat Abdel-Azeim, M. A. Quraishi
Summary: The new green corrosion inhibitor STBim was synthesized in a single step reaction and showed high efficiency in inhibiting carbon steel corrosion in 15% HCl. Adsorption followed Langmuir isotherm, impedance measurements supported improved capacitive behavior, and potentiodynamic polarization studies revealed a mixed behavior with cathodic predominance. Computational studies showed that the inhibitor adsorbed mainly in the protonated form, resulting in a shift in the steel's work function.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Ayesha Sultana, Md. Mehebub Alam, Eleni Pavlopoulou, Eduardo Solano, Magnus Berggren, Xavier Crispin, Dan Zhao
Summary: Internet-of-Everything (IoE) is defined as the networked connections of things, people, data, and processes. To power distributed IoE nodes in an ecofriendly manner, researchers have developed a technology to scavenge energy from the environment and self-powered devices. By utilizing electrochemically poled cellulose nanofiber (CNF) thin films processed from water dispersions, researchers have found that these films exhibit piezoelectric characteristics, making them a promising low-cost and printable ecofriendly power source for IoE nodes.
CHEMISTRY OF MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Elder C. Leopoldino, Gabriela Pinheiro, Ricardo J. Alves, Adriana Gerola, Bruno S. Souza
Summary: In this work, a polymeric catalyst (PEIIm) designed for organophosphate degradation was successfully prepared using commercial polymer PEMA. The catalyst showed higher activity and efficiency in degrading organophosphate and toxic pesticide, demonstrating its potential for catalytic applications in environmental remediation.
MATERIALS TODAY COMMUNICATIONS
(2021)
Review
Environmental Sciences
Jyoti Kaushal, Madhu Khatri, Shailendra Kumar Arya
Summary: Pesticides have been widely used in agriculture for pest control, with organophosphate pesticides being one of the most commonly used types. These pesticides cause irreversible inhibition of the AChE enzyme in living beings, leading to respiratory and neuromuscular impairments. The residues of organophosphate pesticides pose a threat to the environment and human health, with research focusing on the toxicological effects and methods of detection and degradation.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Review
Environmental Sciences
Thais Fernandes Mendonca Mota, Wesley Lima Oliveira, Sandrieli Goncalves, Marina Wust Vasconcelos, Karina Silvia Beatriz Miglioranza, Nedia Castilhos Ghisi
Summary: Acephate, a moderately toxic pesticide, is widely used for pest control in agriculture and domestic settings despite being highly toxic to mammals and birds through its metabolite methamidophos. This research aimed to analyze the intellectual production and identify the gaps and trends in scientific research on acephate through a scientometric analysis. Results showed that the majority of studies focused on acephate's efficiency, followed by toxicity and residue detection methods. The USA, China, India, Brazil, and Japan published the most literature on acephate. Keywords such as pesticides, toxicity, insecticide resistance, and residue were commonly used. However, there is a need for more research on chronic toxicity, genotoxicity, cytotoxicity, metabolic and biochemical pathways, and genes related to acephate action and biodegradation.
ENVIRONMENTAL RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Samuel B. Inman, Debashish Sur, Junsoo Han, Kevin Ogle, John R. Scully
Summary: The corrosion behavior of a compositionally complex dual-phase alloy, Al0.3Cr0.5Fe2Mn0.25Mo0.15Ni1.5Ti0.3, was investigated in different electrolytes. Despite lower Cr concentrations, comparable corrosion resistance to 316L stainless steel and Ni-Cr binaries was observed in NaCl. In-situ atomic emission spectroelectrochemistry and ex-situ X-ray photoelectron spectroscopy were used to identify the elemental fates during corrosion, indicating the enrichment of Al, Cr, Ti, and Mo in the passive film. Proposed benefits of Al-Cr-Ti coexistence were addressed.
Article
Chemistry, Physical
M. Ontiveros-Rosales, A. Espinoza-Vazquez, F. J. Rodriguez Gomez, S. Valdez-Rodriguez, A. Miralrio, B. A. Acosta-Garcia, M. Castro
Summary: In this study, the corrosion inhibition effect of the imidazolate of 1-butyl-3-ethyl imidazole was investigated on API 5L-X52 steel in a NaCl solution saturated with 3% CO2. The inhibition efficiency was found to increase with the concentration of the inhibitor. Thermodynamic analysis and experimental verification confirmed the inhibiting effect of the ionic liquid on the metal surface. Density functional theory calculations provided insights into the adsorption mechanism and stability of the inhibitor. The results of this research are significant for the development of efficient corrosion inhibitors.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Energy & Fuels
Claudia Buerhop, Oleksandr Stroyuk, Tobias Pickel, Jens Hauch, Ian Marius Peters
Summary: This study emphasizes the importance of maintaining high insulation resistance in polymer backsheets for the reliable operation of photovoltaic installations. The research shows that the choice of polymers significantly affects the performance and degradation rates of inverters connected to photovoltaic modules. In particular, an increase in water content in the backsheet is a sign of reduced leakage resistance. The study also reveals that certain types of backsheets have a significant impact on ground impedance and the operation of inverters, leading to yield loss.
PROGRESS IN PHOTOVOLTAICS
(2022)
Article
Engineering, Chemical
A. Jamale, M. Starykevich, F. M. B. Marques
Summary: The solubility of metal oxides plays a crucial role in the stability of composite membranes, as evidenced by the testing of membranes with different oxide and salt content.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Polymer Science
Alexey I. I. Volkov, Rostislav V. V. Apraksin
Summary: In this study, the effects of different salt additives on the electrochemical properties, morphology, and structure of PEDOT:PSS films were systematically investigated. The results showed a close relationship between the electrochemical properties of the films and the nature of the additives, which could be correlated with the Hofmeister series. This research provides insights into the modification processes within PEDOT:PSS films and the potential for fine-tuning their properties by selecting appropriate salt additives.
Article
Medicine, Research & Experimental
Susumu Ikenoshita, Kazuya Matsuo, Yasushi Yabuki, Kosuke Kawakubo, Sefan Asamitsu, Karin Hori, Shingo Usuki, Yuki Hirose, Toshikazu Bando, Kimi Araki, Mitsuharu Ueda, Hiroshi Sugiyama, Norifumi Shioda
Summary: A compound called CWG-cPIP has been found to suppress the pathogenesis of both coding and noncoding CWG repeat diseases by selectively inhibiting pathogenic mRNA transcripts and reducing the accumulation of abnormal RNA and protein levels. This compound has shown promising results in mouse models, ameliorating behavioral deficits without any toxic effects.
JOURNAL OF CLINICAL INVESTIGATION
(2023)
Review
Biochemistry & Molecular Biology
Rina Maeda, Toshikazu Bando, Hiroshi Sugiyama
Summary: Pyrrole-imidazole (PI) polyamides, which target specific DNA sequences, have shown sequence-specific alkylating activities when conjugated with DNA-alkylating agents, making them potential candidates for developing new anticancer drugs.
Article
Nanoscience & Nanotechnology
Yane H. Santos, Andre H. G. Martinez, Amanda Garcez Veiga, Maria Luiza M. Rocco, Aldo J. G. Zarbin, Elisa S. Orth
Summary: This study reports the synthesis of mono- and bifunctionalized graphene oxide (GO) materials containing thiol and imidazole groups via amidation reactions. The catalytic performance of these functionalized materials was evaluated in the neutralization reaction of a toxic organophosphate. The results showed that consecutive addition of reagents led to higher degrees of functionalization, and in the case of bifunctionalized materials, those with lower degrees of functionalization exhibited better catalytic performance. This study provides insights into neighboring effects and emphasizes the importance of considering the functionalization degree in determining the material's application.
ACS APPLIED NANO MATERIALS
(2022)
Article
Energy & Fuels
Ana Luiza Lorenzen, Rafael J. Silya, Vanessa Klobukoski, Frederico L. F. Soares, Mayara R. Fornari, Antonio S. Mangrich, Marcio Vidotti
Summary: This study synthesized graphite-like materials from biomass obtained from industrial waste and created a composite material with polyaniline. The results showed that the composite material exhibited promising electrochemical characteristics for energy storage electrodes.
Article
Chemistry, Multidisciplinary
Sheila C. Jacumasso, Gabriela de Alvarenga, Adriana C. de Lazzari, Naiara M. F. M. Sampaio, Bruno J. G. Silva, Luis F. Marchesi, Marcio Vidotti, Izabel C. Riegel-Vidotti
Summary: In this study, alginate-polypyrrole composite hydrogels were prepared using chemical polymerization and applied for solid-phase extraction of contaminants. The composite materials showed improved extraction capacity and demonstrated the active extraction characteristics of the hydrogel matrix.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Physical
Valmir B. Silva, Elisa S. Orth
Summary: This study investigates the alkaline hydrolysis of organophosphates and evaluates the impact of leaving and non-leaving groups. A linear correlation model is successfully established to predict optimal neutralization processes. The study finds that the contribution of non-leaving groups is as important as leaving groups, and the presence of heteroatoms affects the contribution of these groups.
Article
Polymer Science
Andrei E. Deller, Bruna M. Hryniewicz, Camila Pesqueira, Rayta Paim Horta, Bruno Jose Goncalves da Silva, Saddam Weheabby, Ammar Al-Hamry, Olfa Kanoun, Marcio Vidotti
Summary: An electrochemical sensor utilizing a screen-printed electrode modified with conducting polymer and gold nanoparticles has been developed for detecting and degrading the pesticide Pirimicarb (PMC). The sensor showed a new peak at 1.0 V in the presence of PMC, indicating its oxidation. Gas Chromatography-Mass Spectrometry (GC-MS) was used to elucidate the mechanism of PMC oxidation, which confirmed the ability of the sensor to detect and degrade PMC through an electro-oxidation process. The sensor exhibited a detection range of 93.81-750 μmol L-1 with limits of quantification (LOQ) and detection (LOD) of 93.91 μmol L-1 and 28.34 μmol L-1, respectively, and demonstrated good selectivity against interferents.
Article
Chemistry, Analytical
Andrei E. Deller, Ana L. Soares, Jaqueline Volpe, Jean G. A. Ruthes, Denio E. P. Souto, Marcio Vidotti
Summary: In this study, a hybrid material composed of polypyrrole nanotubes and gold nanoparticles was synthesized and used as an electroactive layer for protein attachment in the construction of a high-performance biosensor. The biosensor showed sensitivity and capability in detecting different biological substances, with a wide linear range of detection.
Article
Chemistry, Physical
Anukriti Pokhriyal, Rosa M. N. Gonzalez-Gil, Leandro N. M. Bengoa, Pedro Gomez-Romero
Summary: This article addresses the issue of bulk electrode design and the factors limiting the performance of thick electrodes. The researchers developed and compared supercapacitor thick electrodes using commercially available carbons and conventional methods such as spray coating and freeze-casting. They analyzed factors such as porosity and tortuosity that determine the performance of thick electrodes. The spray-coated electrodes showed high areal capacitances of 1428 mF cm(-2) at 0.3 mm thickness and 2459 F cm(-2) at 0.6 mm thickness.
Review
Chemistry, Analytical
Isabela Jasper, Tatiana Lima Valerio, Vanessa Klobukoski, Camila Melo Pesqueira, Jonas Massaneiro, Luan Pereira Camargo, Luiz Henrique Dall' Antonia, Marcio Vidotti
Summary: Electrochemical sensors have wide-ranging applications in environmental, industrial, and chemical analysis. This review provides an overview of two types of sensors: electrocatalytic sensors, which involve oxidation and reduction reactions through electron transfer, and photoelectrocatalytic sensors, which involve a current response due to light incidence and redox reactions. The review also discusses how the detection capacity and behavior of these sensors can be influenced by various factors related to the electrode material. Inorganic, organic, and hybrid materials are compared for their use in electrocatalytic and photoelectrocatalytic sensors.
Article
Chemistry, Multidisciplinary
A. Santos, A. P. Macedo de Souza Brandao, B. M. Hryniewicz, H. Abreu, L. Bach-Toledo, S. Schuster da Silva, A. E. Deller, V. Z. Rogerio, D. S. Baeta Rodrigues, P. M. Hiraiwa, B. G. Guimaraes, L. F. Marchesi, J. Carvalho de Oliveira, D. F. Gradia, F. L. F. Soares, N. I. T. Zanchin, C. Camargo de Oliveira, M. Vidotti
Summary: The rapid spread of SARS-CoV-2 requires urgent and accurate diagnosis. Several sensors with different biorecognition elements have been developed to achieve high specificity and sensitivity. However, it is still challenging to combine these parameters with fast detection, simplicity, and portability, especially for identifying biorecognition elements at low concentrations.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Electrochemistry
Vanessa Klobukoski, Izabel C. Riegel-Vidotti, Marcio Vidotti
Summary: The use of biopolymers in gel polymer electrolytes (GPEs) for high-performance energy storage devices contributes to sustainable material development. An alginate-based gel electrolyte crosslinked with calcium ions (ALG-Ca2) was used as the electrolyte and separator in a symmetric supercapacitor, demonstrating good mechanical properties and ionic conductivity. The device exhibited a specific cell capacitance of 39.5 F g-1 and 70.9% durability after 2000 galvanostatic charge-discharge (GCD) cycles.
ELECTROCHIMICA ACTA
(2023)
Article
Environmental Sciences
Jose G. L. Ferreira, Elisa S. Orth
Summary: A green approach was demonstrated by functionalizing rice husk waste and using it as a catalyst and scavenger to remove toxic organophosphates. The waste-derived catalyst effectively neutralized phosphotriesters in aqueous medium with significant increases in efficiency. The amidoximated rice husk also acted as a scavenger in aprotic polar solvents, forming covalent bonds with the phosphoryl moiety, which could be reversed by adding water.
ENVIRONMENTAL POLLUTION
(2023)
Article
Chemistry, Multidisciplinary
Jean G. A. Ruthes, Andrei E. E. Deller, Emmanuel Pamete, Izabel C. C. Riegel-Vidotti, Volker Presser, Marcio Vidotti
Summary: Developing new flexible and electroactive materials for energy storage devices is challenging. This study introduces a promising electrolyte system and builds flexible supercapacitors using a hydrogel electrolyte. The flexible device achieves a high specific capacitance value and shows great versatility in its electrochemical and mechanical properties. The study demonstrates a flexible, environmentally friendly, and tunable quasi-solid electrolyte.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Engineering, Chemical
Gustavo Cercal, Gabriela de Alvarenga, Marcio Vidotti
Summary: Electrochemical machining (ECM) is widely used to manufacture parts with complex geometries. The generation of sludge during ECM process requires daily and complicated sludge management. This study proposes a simple method by adding complexing (EDTA) or reducing (ascorbic acid) agents to the electrolyte composition, resulting in a significant reduction in sludge mass. This sludge reduction has the potential to increase equipment lifetime and productivity, as well as reducing costs associated with sludge removal.
Article
Chemistry, Physical
Anukriti Pokhriyal, Daniel Rueda-Garcia, Pedro Gomez-Romero
Summary: Energy storage is experiencing a renaissance, with a focus on urgently deploying stationary energy storage at a large scale to support the full deployment of renewable energy. Technologies like lithium-ion batteries will be key in this pursuit.
SUSTAINABLE ENERGY & FUELS
(2023)
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)
