Article
Materials Science, Ceramics
G. Monros, M. Llusar, J. Badenes, R. Galindo
Summary: A frit is a glassy ceramic composition that is made by fusion, quenching, and granulating. It can be used for the preparation of ceramic glazes for waterproofing and aesthetic purposes.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Rahim Mohammad-Rezaei, Javad Abbas-Zadeh, Mahdi Golmohammadpour, Elyas Hosseinzadeh
Summary: In this study, simultaneous deposition of copper oxide and electro-reduced graphene quantum dots (ErGQDs) on the surface of carbon ceramic electrode (CCE) was reported and characterized using various techniques. The presence of ErGQDs led to a remarkable increase in surface coverage, as shown by scan rate studies in hexacyanoferrate. The developed biosensor showed promising detection limits, linear ranges, and sensitivities for the simultaneous measurement of Adenine (A) and Guanine (G).
Article
Chemistry, Physical
Linqing Yue, Bo Zhong, Long Xia, Tao Zhang, Yuanlie Yu, Xiaoxiao Huang
Summary: This study successfully prepared a series of three-dimensional network-like structures formed by silicon-coated carbon nanotubes through an improved process, which play a significant role in enhancing the electromagnetic wave absorption performance and achieved good absorption effects.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Efrat Shukrun Farrell, Nir Ganonyan, Ido Cooperstein, May Yam Moshkovitz, Yaron Amouyal, David Avnir, Shlomo Magdassi
Summary: Aerogels, the lightest solid material known, are nanoporous solids with low density, widely used in various applications. This study introduces a new comprehensive solution for preparing aerogels photochemically and fabricating them in complex shapes at different scales.
APPLIED MATERIALS TODAY
(2021)
Article
Chemistry, Analytical
Yujing Zhang, Likang Sun, Xiaoxuan Xiang, Ying Bao, Xinhua Guo
Summary: The use of surface-enhanced Raman spectroscopy (SERS) can identify the structural details of DNA G-quadruplexes, especially the number of adenine (A) bases on the G-quartet. This method is simple, fast, low cost, and sensitive, providing specific structural details in aqueous solution with widespread applications.
Article
Materials Science, Ceramics
Nayarit A. Mata, Pablo Velasquez, Angel Murciano, Piedad N. De Aza
Summary: Novel pyrophosphate glass ceramic scaffolds coated with bioactive layers containing different levels of MgO were studied for bone regeneration. The scaffolds showed good biological activity and mechanical properties, with potential applications in bone tissue engineering.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Qingkai Yang, Haiqing Qin, Kailin Huang, Rui Zhang, Lu Yang, Zhao Lu, Qingrong Yao, Lichun Cheng, Caimin Huang, Qianxin Long, Jiang Wang, Huaiying Zhou
Summary: The magnetic and microwave absorption properties of PrFeO3 ceramic were investigated using traditional solid-state reaction and sol-gel methods. X-ray diffraction and transmission electron microscopy detected only an orthorhombic crystal structure. Heat treatment significantly improved the coercivity of PrFeO3 ceramic, changing the magnetic properties from antiferromagnetic to ferromagnetic. The strong ferromagnetism in the PrFeO3 ceramic was mainly attributed to the contracting of Fe3+-Oc2 bonds and the decreasing Fe3+-Od2--Fe3+ linkage angles.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Materials Science, Ceramics
Maryam Sirati Gohari, Seyed Ali Rezaei, Alimorad Rashidi, Mohsen Saremi, Touradj Ebadzadeh
Summary: In this study, mullite-coated MWCNTs were fabricated by sol-gel method to improve the oxidation resistance. The results showed that the mullite coating, synthesized using microwave heating, exhibited a uniform and dense structure with higher crystallinity, resulting in an increase in the oxidation temperature of MWCNTs.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Hyuk Hur, Yu Jin Park, Dong-Hyun Kim, Jong Wan Ko
Summary: A novel strategy for additive manufacturing of dense ceramics without polymeric additives is proposed, which utilizes a sol-gel binder system. The as-printed green body achieved high alumina content, 66% of theoretical density, reduced linear shrinkage, and high density close to the theoretical value. This research presents a practical strategy for ceramic additive manufacturing as an emerging fabrication process.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Multidisciplinary
Jeong-Hyeon Kim, Jongyun Choi, Hyunseok Na, Sung-Nam Lee
Summary: Recently, sol-gel-derived ZnO thin films have been studied for high-performance photodetectors, but they have lower crystallinity compared to vacuum-based grown ZnO films, resulting in poor photoreaction. This study combines a SWCNT heating system with sol-gel ZnO-based UV PDs, resulting in a significant improvement in photocurrent and response time. The embedded-SWCNT heater increases the temperature, leading to shorter rise and decay times of the sol-gel-derived ZnO PDs.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Alessio Zandona, Aurina Martinez Arias, Mirjam Gutbrod, Gundula Helsch, Alfred P. Weber, Joachim Deubener
Summary: Glass-ceramic nanospheres of molar composition 0.83 SiO2 • 0.17 TiO2 are produced by the sol-gel spray-drying method, followed by controlled heat treatments up to 1200 degrees C. TiO2(B) and anatase nanocrystals are precipitated in the glassy matrix, with crystal sizes increasing over time. The nanospheres exhibit noticeable photocatalytic activity under UV-A irradiation, especially during annealing stages with higher amounts of TiO2(B) and smaller crystals.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Polymer Science
Ruolin Han, Yuping Liu, Jinchao Shi, Guang-Xin Chen, Qifang Li
Summary: In this study, a core-shell structured hybrid powder (STO@MWCNTs) was prepared by coating strontium titanate (STO) on the surface of carbon nanotubes (MWCNTs) using a sol-gel method. This powder was then added to polydimethylsiloxane to create a flexible high-K composite. The STO coating effectively prevented the overlap and agglomeration of MWCNTs, improving the dielectric properties of the composite.
Article
Materials Science, Ceramics
Yung-Tang Nien, Chang-Han Tsai, Rui-He Zheng, Hong-Jun Ye
Summary: YAG:Ce prepared by sol-gel method and YAG:Ce post-treated with CO2 laser show differences in properties and morphology. Laser-sintered YAG:Ce powders exhibit higher luminescence efficiency, improved crystallinity, and smoother surface compared to sol-gel-derived powders.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Ri Xiang, Lichun Cheng, Haiying Qi, Man Wang, Qingrong Yao, Yucheng Chen, Chaohao Hu, Huaiying Zhou
Summary: This study reports for the first time that porous Sm-doped CaFe0.5Mn0.5O3-delta (CFMO) exhibits excellent microwave absorption properties. By adding Sm elements, the porous structure, interfacial polarization, and defect polarization of CFMO are increased, along with the oxygen vacancy content, leading to enhanced charge polarization and dipole polarization. The combination with paraffin wax further enhances the interfacial polarization capacity, thereby improving the microwave absorption performance of the sample. This research holds great significance for the development of absorbing materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Valentina I. Merkus, Michael S. Leupold, Sarah P. Rockel, Holger Lutze, Torsten C. Schmidt
Summary: The ozonation of micropollutants is greatly influenced by the composition of water, particularly the presence of natural organic matter and carbonate species. In this study, the degradation and product formation of purine derivatives, which are common antiviral micropollutants, were investigated in different artificial water matrices, with a focus on the impact of natural organic matter and alkalinity. It was found that the presence of bicarbonate in the water matrix inhibited the degradation of purine and adenine due to the scavenging of hydroxyl radicals. However, the formation of carbonate radicals contributed to the degradation of compounds and affected the stability of transformation products, especially in high alkalinity conditions.
Article
Chemistry, Analytical
Azadeh Kiani, Ali Ghaffarinejad, Seyed Abolfazl Seyedsadjadi, Atiyeh Mansouri
Article
Materials Science, Multidisciplinary
Zahra Payandehdarinejad, Shahab Norouzian Alam, Ali Ghaffarinejad, Bijan Ghafary, Hamidreza Mazandarani
Summary: In this study, a novel UV photodetector was fabricated using carbon fibers as the substrate, zinc oxide nanorods, and polypyrrole nanoparticles. The detector showed excellent mechanical and thermal stability due to the use of high temperature tolerant and conductive flexible carbon fibers. The photodetector exhibited enhanced UV photoelectric properties, detecting short wavelengths including 250 nm in the UVC region with high sensitivity compared to detectors based on pure ZnO nanorods.
Article
Green & Sustainable Science & Technology
Ayad Sami Abboud, Ali Ghaffarinejad, Afsaneh Mollahosseini
Summary: In this study, a novel adsorbent named Met-GO@Alg, composed of metformin, graphene oxide, and alginate beads, was developed for the removal of lead ions from aqueous media. The adsorbent was characterized and the parameters such as solution pH, adsorbent dosage, contact time, temperature, and co-existing ions were optimized. The results showed that the adsorption process followed the pseudo-second-order kinetics and the adsorption isotherm fit well with the Freundlich model. The Met-GO@Alg nanocomposite exhibited high removal efficiency and reusability.
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2022)
Article
Electrochemistry
Mozhgan Heidari, Ali Ghaffarinejad, Eskandar Omidinia
Summary: This article describes a highly sensitive voltammetric genosensor for the detection of hepatitis B virus (HBV) by depositing Pd(II)-Al(III)-layered double hydroxide (LDH) on the surface of a fluorinated tin oxide electrode (FTO) using chronoamperometry (CA) technique. The genosensor exhibits high sensitivity, a wide linear range, and a low detection limit, and has been successfully applied for the measurement of HBV DNA in human serum.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Mohammad Hossein Fekri, Faezeh Omidali, Mohammad Mahdi Alemnezhad, Ali Ghaffarinejad
Summary: This study reports for the first time the use of turnip peel extract as an eco-friendly and inexpensive bio-inhibitor for copper corrosion. The study examines the inhibition efficiency of the extract at different temperatures and investigates the adsorption mechanism of the extract on the copper surface. The results show that the extract demonstrates promising inhibition efficiency and physical adsorption.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Review
Chemistry, Physical
Seyedeh Yasaman Shajaripour Jaberi, Ali Ghaffarinejad, Zahra Khajehsaeidi, Ali Sadeghi
Summary: This review discusses different synthesis methods of cobalt disulfide (CoS2) and investigates the role of CoS2 as an active electrode material in various applications, including different types of batteries, supercapacitors, dye-sensitized solar cells (DSSCs), as well as a hydrogen and oxygen electrocatalyst and a component in sensor construction. Furthermore, several solutions to the challenges of using CoS2, such as volume changes during cycling or nanoparticle aggregation, are presented and discussed. We hope that this information will be beneficial for researchers worldwide and suggest promising paths for future projects.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Nanoscience & Nanotechnology
Reza Mostafazadeh, Hassan Karimi-Maleh, Ali Ghaffarinejad, Fariba Tajabadi, Yasamin Hamidian
Summary: In this study, the electrochemical behavior of Azithromycin (Azi) antibiotic was investigated using a carbon paste electrode (CPE) improved by graphene nanoribbon-CoFe2O4@NiO nanocomposite and 1-hexyl-3 methylimidazolium hexafluorophosphate (HMIM PF6) as an ionic liquid binder. The results showed that the modifiers enhanced the conductivity and electrochemical activity of the CPE. Under optimal conditions, the sensor exhibited linear ranges from 10 μM to 2 mM with a LOD of 0.66 μM for Azi determination. The reproducibility (3.15%), repeatability (2.5%), selectivity, and stability (for 30 days) of the sensor were also confirmed.
APPLIED NANOSCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Meisam Kahrizi, Hamideh Kashani, Ali Ghaffarinejad
Summary: We have reported a new anode material, Li4Ti5-xCuxO11.7F0.3 (X=0.1, 0.15, 0.2, 0.25, 0.3), for Li-ion batteries. Among these modified Li4Ti5O12 (LTO) materials, Li4Ti4.75Cu0.25O11.7F0.3 (LTCu0.25OF0.3) exhibits the best cyclability and rate ability. LTCu0.25OF0.3 delivers high discharge capacities at different current rates and shows excellent capacity retention after 100 charge and discharge cycles. The improved electrochemical performance is attributed to lower polarization and charge transfer resistance, as well as a higher Li+ diffusion coefficient.
Article
Engineering, Chemical
Mohammad Mahdi Alemnezhad, Ali Ghaffarinejad, Faezeh Omidali
Summary: In this study, Carpobrotus edulis leaf extract (CELE) was introduced as a new, eco-friendly, and green copper corrosion inhibitor in a 3.5 wt.% sodium chloride solution. The chemical composition of CELE was determined using liquid chromatography combined with a mass spectrometry detector. The dissolution rate of copper samples in the presence and absence of CELE at different concentrations was studied, with 20 wt.% concentration showing the best inhibition efficiency of 87%. Scanning electron microscopy and energy dispersive spectroscopy were used to analyze the surface morphology and elemental composition of copper samples.
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Mojtaba Askari, Ali Ghaffarinejad
Summary: Numerous studies have been conducted in the past decades to introduce environmentally friendly corrosion inhibitors, with Spartium Junceum petals extract (SJPE) being utilized as a new bio-inhibitor for copper corrosion prevention. Analyses using techniques such as GC-MS, FT-IR, EIS, and SEM confirmed the effectiveness of SJPE in improving the corrosion resistance of copper substrate. Additionally, the inhibition mechanism was determined to be physical adsorption through the calculation of activation energy and use of Langmuir adsorption isotherm.
ANALYTICAL SCIENCES
(2023)
Article
Chemistry, Physical
Ali Sadeghi, Ali Ghaffarinejad
Summary: In this study, two electrochemical synthesis techniques, cyclic voltammetry (CV) and linear sweep voltammetry (LSV), were used for the first time to synthesize MOF. The LSV method was found to preserve the 3D structure of the nickel foam and enhance catalytic activity. XRD, FTIR, and BET methods were employed to confirm the structural integrity and porous nature of the NiBTC MOF. The modified nickel foam demonstrated great potential in catalytic activity for the hydrogen evolution reaction (HER).
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Hossein Khoshsang, Khadijeh Abbasi, Ali Ghaffarinejad
Summary: A simple and environmentally friendly method for synthesizing CuO and ZnO nanoparticles using sunflower petal extract was presented. The optimal conditions for CuO and ZnO nanoparticle synthesis were determined by evaluating the concentration of the petal extract, amount of petals used, and synthesis temperature. Characterization of the nanoparticles was conducted using various techniques, and it was found that CuO nanoparticles were spherical with a size less than 50 nm, while ZnO nanoparticles had a similar morphology with a particle size less than 20 nm. The XRD patterns indicated monoclinic and hexagonal crystal structures for CuO and ZnO nanoparticles, respectively.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Green & Sustainable Science & Technology
Z. Bagheri, A. Ghaffarinejad, Ghasem Barati Darband
Summary: The growing concerns about future energy as a result of the increasing use and gradual reduction of fossil fuels has led to a greater need for clean and renewable sources such as hydrogen. This research focused on synthesizing and designing effective electrocatalysts for hydrogen production via urea electrocatalysis. The results showed that the optimized electrode exhibited excellent electrocatalytic activity for hydrogen evolution reaction (HER) and urea oxidation reaction (UOR), significantly reducing the energy consumption of hydrogen production.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Multidisciplinary
Simin Abedini, Amir Abbas Rafati, Ali Ghaffarinejad
Summary: A low-cost electrochemical sensor based on carbon nanotubes and gold nanoparticles has been developed for the detection of the antiviral drug acyclovir in pharmaceutical preparations. The sensor exhibited excellent sensitivity towards ACV and can be used for routine quantification of drugs in pharmaceutical formulations.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Shaghayegh Khalilzadeh, Mohammad Reza Zamani Meymian, Ali Ghaffarinejad
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2020)
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)
