Article
Chemistry, Analytical
Koichiro Takao, Taro Tsubomura
Summary: An optically transparent thin-layer electrode (OTTLE) cell compatible with both absorption and luminescence spectroelectrochemistry was developed and its effectiveness was demonstrated through experiments in both absorption and luminescence spectroelectrochemistry.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Julia Beerhues, Maren Neubrand, Sebastian Sobottka, Nicolas I. Neuman, Hannes Aberhan, Shubhadeep Chandra, Biprajit Sarkar
Summary: Extensive electrochemical investigations on 1,2,3-triazolylidene selenium adducts revealed a correlation between their reduction potentials and molecular structures. Unexpected quasi-reversibility was discovered in the reduction of two triazoline selones. Through spectroelectrochemical studies and calculations, the radical anion was successfully assigned to be triazoline centered, providing design principles for stabilizing radicals based on MICs.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Electrochemistry
Eduardo Laborda, Juan Garcia-Martinez, Angela Molina
Summary: The theoretical investigation on the value of spectroelectrochemistry for elucidating electrode reactions with complex stoichiometries is presented. The analytical equations allow for modeling absorbance response in various modes and potential-controlled techniques, with a demonstration on how SPEC can assist in determining stoichiometric coefficients of redox species concurrently and unequivocally.
ELECTROCHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Nahide Gulsah Deniz, Cigdem Sayil, Duygu Akyuz, Atif Koca
Summary: A novel series of 1,4-naphthoquinones substituted containing sulfur, nitrogen, oxygen atoms were synthesized and characterized using various spectroscopic techniques. The study found that the substituents significantly altered the redox mechanism of the NQ derivatives.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Analytical
Zeynep Ozyildiz, Celal Erkan, Nahide Gulsah Deniz, Zeliha Gokmen, Ozlem Uguz Neli, Atif Koca
Summary: Quinones are a widely found class of compounds in nature that have significant applications in pharmaceutical, medical, and environmental fields. They show strong biological activity against various pathogens and cancer cells. This study synthesized novel derivatives of naphthoquinones and investigated their electrochemical characteristics, providing insights into the formation of semiquinone radical in different environments.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Amol Kumar, Jingguo Li, A. Ken Inge, Sascha Ott
Summary: The power of isoreticular chemistry was leveraged to design metal-organic frameworks (MOFs) with tunable optoelectronic properties. XDI linkers with different lengths and properties were used to construct a series of Zn-XDI MOFs, which exhibited distinct electrochromic properties. The thin films of these MOFs were grown on FTO substrates and characterized by XRD and SEM. The MOFs showed reversible redox events and changes in optical properties, depending on the linker length and redox state. Among them, Zn-PDI@FTO exhibited a record high coloration efficiency and excellent stability, suggesting its potential for practical applications.
Article
Electrochemistry
Sergio Fernandez, Santiago Canellas, Federico Franco, Josep M. Luis, Miquel A. Pericas, Julio Lloret-Fillol
Summary: The study introduces two new cobalt(II) complexes for electrochemical CO2 reduction, one with a coordinating N-H group and the other with a coordinating N-Me group, showing different catalytic activities. The presence of the N-H group enhances the nucleophilic character of the Co-I intermediate, stabilizing reaction intermediates and transition states. Additionally, the study identifies the dissociation of CO from the Co(I)-CO intermediate as a bottleneck in the catalytic cycle, which can be overcome with light irradiation to increase total CO production.
Article
Chemistry, Inorganic & Nuclear
Stefan Benndorf, Sihem Groni, Leanne M. Stafast, Helmar Gorls, Claire Fave, Bernd Schollhorn, Wolfgang Weigand
Summary: In this study, mimicking complexes of [FeFe] hydrogenase (H(2)ase) with lipoic and selenolipoic acid moieties were synthesized and characterized. Different spectroscopic methods, including X-ray diffraction analysis, were used to determine their molecular structures. Cyclic voltammetry (CV) investigations revealed different redox behaviors among the mimics in the presence and absence of acetic acid (AcOH). The elaboration of surface confined systems and the formation of self-assembled monolayers (SAMs) on Pt electrodes were also studied.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Stefan Benndorf, Elisabeth Hofmeister, Maria Waechtler, Helmar Goerls, Phil Liebing, Kalina Peneva, Stefanie Graefe, Stephan Kupfer, Benjamin Dietzek-Ivansic, Wolfgang Weigand
Summary: Hydrogenase mimicking complexes with N-substituted naphthalene monoimide (NMI) of peri-substituted dichalcogenides as bridging ligands were prepared and characterized using various spectroscopic techniques. The redox behavior of these complexes was investigated through cyclic voltammetry, IR and UV-Vis spectroelectrochemistry, EPR spectroscopy and quantum chemical simulations. EPR experiments revealed the non-innocent character of the NMI bridging ligands, showing the formation of an organic radical and a dimeric structure after successive reductions.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Abdullah H. Mannaa, Rania R. Zaky, Esama. Gomaa, Mahmoud N. Abd El-Hady
Summary: A series of solid chelates of Co2+, Cu2+ and Cd2+ were prepared from pyridine-2,6-dicarbohydrazide, and their properties were elucidated through spectroscopic and microscopic techniques. The complexes were further analyzed for their impact on electrochemical conductivity and screened for biological activities such as antimicrobial, antioxidant, erythrocyte hemolysis, DNA-binding and cytotoxicity. The results suggest promising potential in both chemical and biological aspects.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
Vlasta Brezova, Zuzana Barbierikova, Michal Zalibera, Karol Luspai, Andrea Tholtova, Dana Dvoranova
Summary: In this study, cyclic nitrone spin trap 5,5-dimethyl-1-pyrroline N-oxide (DMPO) and its derivatives were used to investigate the mechanism of paramagnetic intermediate generation in a photocatalytic system. The EPR spectra of β-fluorine spin-adducts of DMPO analogs were reported for the first time.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Gurkan Kesan, Emrah Ozcan, Pavel Chabera, Tomas Polivka, Marcel Fuciman
Summary: This study investigates the influence of applied external voltage on the excited-state properties of 8'-apo-beta-carotenal in acetonitrile. The results show that the amplitude of the signal associated with the ICT state can be tuned by applying an external voltage.
Article
Chemistry, Analytical
Zeynep Ozyildiz, Dilan Gezer, Nahide Gulsah Deniz, Zeliha Gokmen, Ozlem Uguz Neli, Atif Koca
Summary: The class of quinone compounds is important in biologically redox-active compounds as they play significant roles in the bioactivation, metabolism/catabolism, and ligand-target interactions of redox-active drugs. This study focuses on the electrochemical and photoelectrochemical properties of amino(substituted)-1,4-naphthoquinone (NQ) derivatives. The synthesized NQ derivatives exhibit two reductions and one oxidation processes, with the reversibility of the redox processes being influenced by the substituent environments of the NQ structure.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Mathias Sawall, Christian Fischer, Benedict J. Elvers, Sebastian Paetsch, Klaus Neymeyr
Summary: Spectroelectrochemical analyses combine spectroscopic measurements with electrochemical techniques to provide insight into complex chemical reaction systems. Chemometric techniques are used to extract pure component information from the large amount of spectroscopic data generated in SEC experiments.
ANALYTICA CHIMICA ACTA
(2021)
Review
Chemistry, Multidisciplinary
Johann Pann, Wolfgang Viertl, Helena Roithmeyer, Richard Pehn, Thomas S. Hofer, Peter Brueggeller
Summary: Artificial photosynthesis for water splitting involves water oxidation catalysis and hydrogen evolution reaction, with photoinduced proton-coupled electron transfer playing a crucial role. The mechanisms of electron and proton transfer differ, with concerted proton electron transfer being an elementary step. Experimental procedures such as femtosecond pump-probe spectroscopy and cyclic voltammetry are used to verify theoretical predictions and study possible mechanisms.
ISRAEL JOURNAL OF CHEMISTRY
(2022)
Review
Chemistry, Organic
Melford Chuka Egbujor, Jorge Garrido, Fernanda Borges, Luciano Saso
Summary: Sulfonamides are known for their diverse biological activities, including antioxidant activity. They have structural diversity and are suitable for drug discovery programs. Despite being extensively used as antibacterial agents, their therapeutic potential as antioxidants has been relatively underexplored. Some sulfonamide derivatives have been found to activate Nrf2, a key process in cellular response to oxidative stress.
MINI-REVIEWS IN ORGANIC CHEMISTRY
(2023)
Review
Pharmacology & Pharmacy
Ilhan Yaylim, Ammad Ahmad Farooqi, Pelin Telkoparan-Akillilar, Luciano Saso
Summary: Cancer is a multifactorial disease, and the dysregulation of spatio-temporally controlled transduction pathways, particularly NRF2-driven signaling, plays a central role in cancer progression. Non-coding RNA (ncRNA) mediated regulation of NRF2 and the interplay between NRF2 and ncRNAs add complexity to NRF2 signaling. The interplay between circular RNAs and NRF2 in different cancers remains unknown. Future studies should focus on characterizing the functional roles of important ncRNAs and circular RNAs in NRF2-driven signaling and cancer progression.
JOURNAL OF PHARMACOLOGY AND EXPERIMENTAL THERAPEUTICS
(2023)
Review
Biochemistry & Molecular Biology
Emiliano Panieri, Pelin Telkoparan-Akillilar, Luciano Saso
Summary: The skin acts as a barrier between the organism and the environment, protecting against various insults. NRF2 plays a crucial role in skin homeostasis, differentiation, and metabolism. This review summarizes the role of NRF2 in skin pathophysiology and discusses the therapeutic efficacy of natural compounds in skin protection against diseases.
Review
Environmental Sciences
Salman Ahmed, Waqas Alam, Khalaf F. Alsharif, Michael Aschner, Fuad M. Alzahrani, Luciano Saso, Haroon Khan
Summary: Malignant melanoma, a dangerous type of skin cancer, is becoming more common and resistant to treatment. Natural substances, particularly marine peptides, are being researched as alternative and safe treatments for melanoma.
ENVIRONMENTAL RESEARCH
(2023)
Review
Biochemistry & Molecular Biology
Somayyeh Ghareghomi, Faezeh Moosavi-Movahedi, Luciano Saso, Mehran Habibi-Rezaei, Ali Khatibi, Jun Hong, Ali A. Moosavi-Movahedi
Summary: Oxidative stresses play a pivotal role in various pathophysiological conditions. The Keap1/Nrf2 pathway is a dual-edged sword with beneficial effects on both normal and cancer cells by regulating endogenous antioxidant enzymes. Targeting the Nrf2/HO-1 axis is considered a novel strategy for cancer treatment, especially in lung cancer.
Article
Neurosciences
Lidia Wlodarczyk, Natalia Cichon, Michal Seweryn Karbownik, Luciano Saso, Joanna Saluk, Elzbieta Miller
Summary: This study aims to identify biomarkers that can predict brain repair ability and estimate the outcome of stroke by examining the expression of VEGF, IGF-1, and MMP-9 proteins and their genes. The results showed significant changes in clinical parameter estimations, as well as MMP9 and VEGF protein and mRNA expression over the rehabilitation process. The combined expression of MMP9 protein and mRNA may serve as a useful biomarker for cognitive improvement in post-stroke patients.
Editorial Material
Biochemistry & Molecular Biology
Sarmistha Saha, Luciano Saso, Aleksei V. V. Trofimov, Olga I. I. Yablonskaya
Review
Biochemistry & Molecular Biology
Gabriel Mendez-Valdes, Francisca Gomez-Hevia, Jose Lillo-Moya, Tommy Gonzalez-Fernandez, Joaquin Abelli, Antonia Cereceda-Cornejo, Maria Chiara Bragato, Luciano Saso, Ramon Rodrigo
Summary: Angiogenesis is a process involving the formation of new blood vessels from preexisting ones, which plays important roles in physiological processes and tumor growth. Vascular endothelial growth factor (VEGF) is the main mediator of angiogenesis and is overexpressed in certain cancers, leading to the development of anti-VEGF monoclonal antibodies as cancer therapies. However, these antibodies have shown adverse events, while endostatin, an endogenous protein that inhibits VEGF expression and angiogenesis, has a better safety profile and promising results on small scale clinical studies. Therefore, endostatin is proposed as a replacement for anti-VEGF monoclonal antibodies.
Article
Biochemistry & Molecular Biology
Masoumeh Divar, Najmeh Edraki, Tahereh Damghani, Fatemeh Moosavi, Maryam Mohabbati, Alireza Alipour, Somayeh Pirhadi, Luciano Saso, Soghra Khabnadideh, Omidreza Firuzi
Summary: Despite advances in therapeutic strategies, cancer remains a leading cause of death. This study synthesized a new series of spiro[indoline-3,2'-quinazoline]-2,4'(3'H)-dione derivatives and evaluated their potential as kinase inhibitors with anti-cancer effects. The most promising compounds exhibited anti-proliferative activity against various cancer cell lines and altered the distribution of cells in the cell cycle. FLT3 kinase was identified as the primary target of these compounds. Compound 5f showed potent inhibitory activity against wild-type FLT3 and its mutant, D835Y. Docking and simulation studies revealed the important interactions of compound 5f with FLT3. These findings suggest that these spiroindoline quinazolinedione compounds could be promising candidates for novel anticancer drugs.
BIOORGANIC & MEDICINAL CHEMISTRY
(2023)
Editorial Material
Biochemistry & Molecular Biology
Sarmistha Saha, Luciano Saso
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Sara Ranjbar, Faramak Faramin Lashkarian, Mehdi Khoshneviszadeh, Fatemeh Moosavi, Amirhossein Sakhteman, Farshid Zargari, Luciano Saso, Omidreza Firuzi, Najmeh Edraki
Summary: In this study, novel 5-oxo-hexahydroquinoline derivatives were synthesized and tested for their ability to reverse multidrug resistance (MDR) in cancer cells overexpressing P-glycoprotein (P-gp). Most of the compounds showed enhanced intracellular accumulation of rhodamine 123, a P-gp substrate, and some exhibited better results than the established P-gp inhibitor verapamil. Certain compounds also effectively reversed resistance to doxorubicin and showed cytotoxic effects against leukemia and colon cancer cells. Molecular simulation analysis confirmed the interaction of selected compounds with the drug-substrate binding site of P-gp.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Review
Biochemistry & Molecular Biology
Maurizio Sorice, Elisabetta Profumo, Antonella Capozzi, Serena Recalchi, Gloria Riitano, Benedetta Di Veroli, Luciano Saso, Brigitta Buttari
Summary: Oxidative stress plays a crucial role in the initiation and progression of Antiphospholipid Antibody Syndrome (APS), a systemic autoimmune disease characterized by thrombosis and pregnancy morbidity. It affects various biological processes and signaling pathways, leading to dysfunctional immune responses, inflammation, apoptosis, autophagy deregulation, and impaired mitochondrial function. The imbalance between oxidation and antioxidant mechanisms in APS patients reflects disease progression. This review focuses on the role of oxidative stress in APS and explores potential therapeutic approaches, such as food supplements and NRF2 activators, to reduce the clinical complications associated with APS.
Review
Biochemistry & Molecular Biology
Milena N. Leseva, Brigitta Buttari, Luciano Saso, Petya A. Dimitrova
Summary: The significance of internal mRNA modifications in regulating transcript stability, nuclear export, translation efficiency, and innate immunity suppression has been well established. Recent research has uncovered the role of internal mRNA modifications in immune cell homeostasis, differentiation, and function. Investigations into modifications of host/pathogen RNA, specifically N6-methyladenosine (m6A), during infection have revealed its importance in disease pathogenesis and shaping host immune responses. Targeting RNA-modifying enzymes with low molecular weight compounds shows promise in cancer research and could lead to the development of broad-spectrum therapeutic agents for infectious diseases.
Review
Biochemistry & Molecular Biology
Sofia Orellana-Urzua, Camilo Briones-Valdivieso, Silvia Chichiarelli, Luciano Saso, Ramon Rodrigo
Summary: Stroke and acute myocardial infarction are major causes of death worldwide, with ischemic stroke also contributing to adult physical disability. Oxidative stress is a primary cause of tissue injury, and natural antioxidants can counteract this process. However, the effects of different antioxidants vary, and combination therapy may have synergistic effects.
Review
Neurosciences
Ilker Ates, Ayse Didem Yilmaz, Brigitta Buttari, Marzia Arese, Luciano Saso, Sibel Suzen
Summary: Autoimmune disease occurs when the immune system attacks healthy cells instead of protecting them, and inflammation and oxidative stress are key processes related to this. The transcription factor Nrf2 plays an important role in defense against oxidative stress and regulating anti-inflammatory activities. The Nrf2 signaling pathway is deregulated in various diseases, including autoimmune disorders.
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)
