Review
Chemistry, Multidisciplinary
Xeniya Alexandrovna Leontyeva, Darya Sergeevna Puzikova, Margarita Borisovna Dergacheva, Gulinur Marsovna Khussurova, Polina Vyacheslavovna Panchenko
Summary: This review article provides an overview of the properties and synthesis methods of BiSI and Bi13S18I2 semiconductor compounds, as well as their applications in photovoltaic and photoelectrochemical devices. Extensive research has been conducted on the structure, properties, functionality, and potential applications of bismuth-containing semiconductor materials over the past decade. Bismuth halides and chalcohalides, with their small band gap, high chemical stability, and effective absorbing properties, hold great potential in photoelectrochemical processes and photovoltaic solid-state elements.
JOURNAL OF SAUDI CHEMICAL SOCIETY
(2023)
Article
Chemistry, Analytical
Jintao Dong, Feng Chen, Li Xu, Pengcheng Yan, Junchao Qian, Yun Chen, Mengying Yang, Henan Li
Summary: A highly sensitive and selective photoelectrochemical aptasensor was developed for detecting trace chloramphenicol. The aptasensor, based on Ag nanoparticles sensitized bismuth oxyiodide composites, showed enhanced CAP detection performance with wide linear range, low detection limit, and superior selectivity. Moreover, the aptasensor exhibited favorable stability and reproducibility.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Mathato P. Motaung, Damian C. Onwudiwe, Wei Lei
Summary: Bi2S3 and Sb2S3 nanoparticles were successfully prepared by microwave irradiation and showed promising electrochemical performance, as well as potential for application in solar cell devices. The nanoparticles exhibited similar responses to conventional semiconductor nanomaterials in relation to photoelectrochemistry.
Article
Chemistry, Applied
Xiao Liu, Yuning Jiang, Jing Luo, Xiaoyu Guo, Ye Ying, Ying Wen, Haifeng Yang, Yiping Wu
Summary: A novel aptamer modified SnO2/Bi2S3-based photoelectrochemical (PEC) sensor was developed for the determination of TOB in milk, showing a wide linear response range of 5-50 nmol/L with a detection limit of 4.28 nmol/L. The high sensitivity of the sensor is attributed to the favorable energy level matching of SnO2 and Bi2S3, and further enhanced by the use of oxalate. The stability of the PEC aptasensor is satisfactory due to calcination of SnO2/Bi2S3 at 450 degrees C.
Article
Chemistry, Physical
Mohit Prasad, Vidhika Sharma, Subhash Pandharkar, Pratibha Shinde, Ashvini Punde, Vidya Doiphode, Ashish Waghmare, Rahul Aher, Priti Vairale, Vijaya Jadkar, Yogesh Hase, Sachin Rondiya, Sandesh Jadkar
Summary: Carbon functionalized bismuth vanadate (BVO) photoanodes were synthesized using a simple wet chemical process, and various characterizations were carried out to evaluate their performance. The C-BVO photoanodes demonstrated superior photoconversion efficiency and short circuit current compared to pristine BVO. In addition, PEC logic gates were designed based on bare BVO using pulsed white light beams.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Applied
Martin Brada, Michael Neumann-Spallart, Josef Krysa
Summary: The present work describes the preparation of tungsten trioxide photoanodes by aerosol pyrolysis on FTO/glass substrates. The WO3 layers were characterized and optimal deposition conditions were determined. It was found that an annealing temperature of 550 degrees C was necessary to achieve the highest, stable photocurrent of -990 mu A/cm2 for a layer thickness of 3.8 mu m.
Article
Energy & Fuels
Irene Carrai, Raffaello Mazzaro, Elena Bassan, Giacomo Morselli, Alberto Piccioni, Silvia Grandi, Stefano Caramori, Paola Ceroni, Luca Pasquini
Summary: The solar-driven oxidation of biomass to valuable chemicals is being explored as a promising anodic reaction in photoelectrochemical cells, with the aim of replacing the slow oxygen evolution reaction and improving energy conversion efficiency. In this study, the photooxidation of 5-hydroxymethylfurfural into furan dicarboxylic acid (FDCA) was carried out in a basic aqueous environment using titanium-modified hematite (Ti:Fe2O3) photoanodes. The addition of Co-based cocatalysts, specifically cobalt iron oxide (CoFeO x ) and cobalt phosphate (CoPi), improved the performance of the photoanodes, particularly the electrode modified with CoPi, which showed enhanced efficiency and selectivity towards FDCA production. The improved performance is attributed to the cocatalyst's effect on charge carrier dynamics and suppression of recombination processes.
Article
Chemistry, Analytical
Yujiao Pei, Yonghao Ge, Xiaoru Zhang, Ying Li
Summary: A cathodic photoelectrochemical sensor was developed for the determination of exosomes based on a dual-signal reduction strategy, using a heterostructure of NiO/BiOI/Au NP/CdSe as the sensing interface to suppress recombination of electron-hole pairs and produce higher photocurrent. This sensor showed good selectivity, performed well in complex biological environments and could distinguish breast cancer patients from healthy individuals.
Article
Chemistry, Applied
Tomas Imrich, Hana Krysova, Michael Neumann-Spallart, Josef Krysa
Summary: In this study, precursor films of pseudobrookite, Fe2TiO5, were obtained using spray pyrolysis technique. By annealing at high temperatures, phase-pure pseudobrookite films were obtained. Electrochemical experiments showed that Fe2TiO5 electrodes exhibited n-type behavior with a maximum photocurrent of 0.35 mA/cm(2) under simulated sunlight. The valence band energy of Fe2TiO5 was estimated to be between 6.6 and 6.8 eV.
Article
Materials Science, Multidisciplinary
Wanxuan Xie, Yang Zhong, Dehui Wang, Lun Zhong, Lu Han, Qiongfen Yang, Wenjing Jie
Summary: This study demonstrates the co-existence of digital and analog resistive switching in synaptic memristors based on 2D BiOI nanosheets. The memristors show typical bipolar resistive switching behaviors and can emulate learning-forgetting experience and Pavlov's dog experiment.
MATERIALS & DESIGN
(2023)
Article
Nanoscience & Nanotechnology
Zheng Pan, Yinguo Zhou, Lei Zhang
Summary: This article uses machine learning and symbolic regression methods to predict the complex multidimensional design space and describe the photoelectrochemical properties of halide perovskite materials. The best algorithm is found through a comparison of different machine learning algorithms, and hybrid descriptors are designed using symbolic regression to outperform individual descriptors.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Biophysics
Fang -Fang Xin, Jin-Jin Xu, Jin Zhang, Ai-Jun Wang, Yadong Xue, Li-Ping Mei, Pei Song, Jiu-Ju Feng
Summary: In this study, a controllable signal transduction ratiometric PEC aptasensor for the analysis of enrofloxacin was proposed. By utilizing the photocurrent-polarity-switching signal response model and the superior performance of the photoactive substrate material, the ratiometric PEC aptasensor showed a good detection linear range from 0.01 pg mL-1 to 10 ng mL-1 and a detection limit of 3.3 fg mL-1.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Energy & Fuels
Mahadeo A. Mahadik, Hyun Hwi Lee, Weon-Sik Chae, Min Cho, Jum Suk Jang
Summary: Microwave-assisted WO3 photoelectrodes were synthesized rapidly and their growth mechanism and photoelectrochemical applications were studied. WO3-NS photoanodes with an active (002) plane showed the best PEC performance, and the charge separation in WO3-MW-3 cycle photoanodes was enhanced by microwave cycles.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Materials Science, Ceramics
Sibila A. A. Oliveira, Maria Kuznetsova, Juliana S. Souza
Summary: Developing new photocatalysts based on metal oxide semiconductors to degrade dyes under sunlight irradiation is an expanding area of research. In this study, BiNbO4 nanostructures were synthesized by microwave-assisted hydrothermal method and decorated with silver nanoparticles through an in situ microwave-assisted reflux synthesis. The resulting catalyst was characterized and its photocatalytic activity was evaluated. The studies revealed that the crystalline structure and the decoration method have significant effects on the catalyst's performance.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Camila Stockey Erhardt, Waleska Guaglianoni, Ana Paula Garcia, Tania Maria Basegio, Carlos Perez Bergmann
Summary: Ultra-rapid microwave-assisted hydrothermal synthesis of zinc oxide nanoparticles doped with gallium was performed. The synthesis time and Ga doping facilitated the production of ZnO nanoparticles with nanorods morphology and improved properties. The successful insertion of Ga into the ZnO lattice was confirmed, and the presence of defects as a result of doping was observed. The band gap range found in the doped ZnO nanoparticles increased their potential for optical applications.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Przemyslaw Kwolek, Grazyna Mrowka-Nowotnik, Magdalena Wytrwal-Sarna
Summary: The study shows that the corrosion rate of aluminum alloy 2017 significantly decreases in solutions containing heteropolyoxomolybdate species. However, solutions containing heteropolyoxotungstate do not inhibit the corrosion of the alloy, while solutions containing vanadium species are unstable over time.
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2021)
Article
Multidisciplinary Sciences
Marek Wojnicki, Magdalena Luty-Blocho, Przemyslaw Kwolek, Marta Gajewska, Robert P. Socha, Zbigniew Pedzich, Edit Csapo, Volker Hessel
Summary: A novel method for synthesizing Pt nanoparticles using a microwave autoclave reactor is proposed in this study, with the application of high temperature and high pressure. The research findings demonstrate that this method is advantageous when the ionic strength of the system is sufficiently low. Additionally, under high pressure and temperature conditions, a change in the shape of Pt particles is observed, indicating the involvement of additional physical-chemical processes.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
Przemyslaw Kwolek, Marek Wojnicki, Edit Csapo
Summary: This study aimed to investigate the kinetics of phosphomolybdenum blue formation on the surface of intermetallic Al2Cu in orthophosphoric acid solution using various analytical methods. It was found that a stable form of phosphomolybdenum blue is produced through the decomposition of an intermediate species in the solution, while neither phosphomolybdenum blue nor heteropolyoxomolybdate species act as corrosion inhibitors. Instead, a protective layer of molybdenum oxides formed upon immersion of intermetallic in the corrosive environment is responsible for corrosion inhibition.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Przemyslaw Kwolek, Kamil Dychton, Barbara Koscielniak, Andrzej Obloj, Agnieszka Podborska, Marek Wojnicki
Summary: This study tested gallic acid as a corrosion inhibitor for aluminum and found that it was ineffective in inhibiting aluminum corrosion or adsorbing onto the aluminum surface under the studied conditions.
Article
Nanoscience & Nanotechnology
Piotr Zawal, Tomasz Mazur, Maria Lis, Alessandro Chiolerio, Konrad Szacilowski
Summary: Organic-inorganic perovskites are well known for their outstanding performance in solar cell research, as well as their potential in unconventional information processing. A neuromimetic behavior is demonstrated in a perovskite device, showing promise as an artificial synapse. By combining a perovskite layer with a non-stoichiometric polymeric form of carbon nitride, the device can operate based on non-von Neumann architecture principles and utilize both electric current and light as information carriers, paving the way for next-generation information processing/storage units.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Marek Wojnicki, Beata Michorczyk, Konrad Wojtaszek, Dawid Kutyla, Karolina Kolczyk-Siedlecka, Stanislaw Malecki, Angelika Wrzesinska, Marcin Kozanecki, Przemyslaw Kwolek, Marta Gajewska, Robert P. Socha, Edit Csapo, Marc Escriba-Gelonch, Volker Hessel
Summary: This paper presents a novel approach of using reduced graphene oxide as a reducing agent for Au(III) chloride complex ions to fabricate composite material Au@GO(r) in a single-step process. The reduction process was performed under high pressure and high temperature conditions, resulting in gold nanoparticles with an average diameter below 3 nm. The advantage of using reduced graphene oxide lies in its high surface area, which significantly accelerates the reaction rate. Green chemistry metrics and circularity indicators were used to assess the environmental friendliness and sustainability of the process, with an atom economy score of 99%.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2022)
Article
Computer Science, Theory & Methods
Dawid Przyczyna, Grzegorz Hess, Konrad Szacilowski
Summary: This study demonstrates the potential of nanodevices as computational substrates for non-linear transformation of electrical signals and memory in the context of epileptic seizure detection. By utilizing a single-node Echo State Machine (SNESM) based on bridge synapse, the system shows improved classification accuracy through the evolution of the signal in a feedback loop. The transformation in SNESM alters the correlation and distribution of complexity parameters in the input signal, ultimately leading to better classification scores.
INTERNATIONAL JOURNAL OF PARALLEL EMERGENT AND DISTRIBUTED SYSTEMS
(2022)
Review
Chemistry, Physical
Noushin Raeisi Kheirabadi, Alessandro Chiolerio, Konrad Szacilowski, Andrew Adamatzky
Summary: Advancements in flexible electronic devices and robotic software have the demand for sensors and controllers that lack traditional electronic components, and that are deformable and stretch-resistant. Liquid electronic devices that imitate biological synapses are the perfect core component for flexible liquid circuits, as they possess unbeatable traits such as flexibility, reconfiguration, and fault tolerance. Mimicking ionic movements is considered the simplest way to implement neuromorphic systems in material computing systems, and a series of experimental laboratory prototypes have been developed using liquids, colloids, and gels.
Article
Chemistry, Multidisciplinary
Marco Crepaldi, Charanraj Mohan, Erik Garofalo, Andrew Adamatzky, Konrad Szacilowski, Alessandro Chiolerio
Summary: Magnetic fluids have potential in various research fields, but their computing capability has not been proven. This study demonstrates that a Fe3O4 water-based ferrofluid can perform electrical analogue computing and be programmed using quasi DC signals and read at RF mode. The fluid shows memristive behavior and is capable of classifying digits and conducting physical reservoir computing. This work opens up possibilities for in-memory computing and full-electric liquid computers using a fluid system.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Inorganic & Nuclear
Gisya Abdi, Lulu Alluhaibi, Ewelina Kowalewska, Tomasz Mazur, Krzysztof Mech, Agnieszka Podborska, Andrzej Slawek, Hirofumi Tanaka, Konrad Szacilowski
Summary: Sensing technology plays a crucial role in information processing, especially in the development of artificial intelligence systems that require data on chemical composition. Photoelectrochemical sensing shows potential in overcoming obstacles in analyzing complex matrices like biological fluids and environmental samples. Integration of photoelectrochemical sensors with unconventional computing paradigm, such as reservoir computing, can enhance sensor performance and open new scientific pathways. This integration also contributes to understanding and mimicking human senses and neuromorphic sensory information processing.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Chemistry, Physical
Dawid Przyczyna, Krzysztof Mech, Ewelina Kowalewska, Mateusz Marzec, Tomasz Mazur, Piotr Zawal, Konrad Szacilowski
Summary: This paper reports on the successful electrodeposition of thin-film materials consisting of copper tungstate and copper molybdate, which exhibit notable memristive properties. The ability to switch between low and high resistive states and simulate bio-inspired effects on the material could offer energy and time savings for classical computations.
Article
Chemistry, Inorganic & Nuclear
Gisya Abdi, Marlena Gryl, Andrzej Slawek, Ewelina Kowalewska, Tomasz Mazur, Agnieszka Podborska, Krzysztof Mech, Piotr Zawal, Anurag Pritam, Angelika Kmita, Lulu Alluhaibi, Alexey Maximenko, Chakkooth Vijayakumar, Konrad Szacilowski
Summary: This study investigates the impacts of structure and composition on the optical and electronic properties of a series of pyridinium-based bismuth iodide complexes. The crystal packing and stabilizing interactions influence the optical band gap, and noncovalent intermolecular interactions affect the crystal packing. Spectroscopic evaluations provide insights into electronic interactions and structural stability. Linear sweep voltammetry reveals significant conductivity, and X-ray absorption spectroscopy shows similar oxidation states and electronic environments across all samples.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Darlene Sammut, Nathalie Bugeja, Konrad Szacilowski, David C. Magri
Summary: Several hybrid molecular logic gates were designed and synthesized, achieving photoinduced electron transfer through different substituents. Computational and experimental results showed differences in the electron transfer dynamics between two of the substituents. These compounds in solution exhibited a polarity-tunable internal charge transfer mechanism and colorful solvatochromatism.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Maciej Suchecki, Sylwia Klejna, Waldemar Bednarski, Marianna Marciszko-Wiackowska, Natalia Rosiaki, Kornelia Lewandowska, Konrad Szacilowski
Summary: The increasing usage of mobile technology globally has led to a demand for better energy storage systems. This study demonstrates a cost-effective method for building high-performance supercapacitors using graphene oxide functionalized with tetrapyrrole derivatives. The experiments and calculations reveal correlations between the structural, magnetic, electronic, and thermodynamic properties of the materials and their performance as supercapacitors. The findings provide insight into the multifarious origins of supercapacitance and offer a viable strategy for manufacturing high-performance supercapacitive materials.
Article
Computer Science, Theory & Methods
Dawid Przyczyna, Maria Szacilowska, Marek Przybylski, Marcin Strzelecki, Konrad Szacilowski
Summary: Reservoir computing with neuromorphic synaptic elements is a successful approach for signal processing and classification. This study presents a simple neuromorphic computing system implemented on the Multisim platform for clustering musical intervals based on their consonant or dissonant character. The results show the potential of using neuromorphic systems for advanced information processing and suggest a neurophysiological basis for the concepts of consonance and dissonance.
INTERNATIONAL JOURNAL OF UNCONVENTIONAL COMPUTING
(2022)
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)
