Article
Engineering, Environmental
Huijin Li, Zhuodi Yuan, Shuang Ding, Jie Yuan
Summary: Magnetic biochar (MBC) is widely used for contaminant removal due to its ease of recovery and separation. However, magnetic modification decreases the surface area of biochar, resulting in limited improvement in adsorption performance. This study investigated the changes in physicochemical characteristics of modified MBC and evaluated its ability to remove Pb2+ from contaminated water. Ball milling modification greatly enhanced the adsorption performance of MBC by increasing the number and surface area of functional groups.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Yutong Zhang, Anyu Li, Lihu Liu, Xianjie Duan, Wenzhan Ge, Chengshuai Liu, Guohong Qiu
Summary: Metal oxide-modified biochar is effective for remediation and adsorption of heavy metals in polluted soil and wastewater. This study investigated the interaction between cellulose and hemicellulose with metal oxides on the surface of biochar/biomass, as well as the loading stability, adsorption capacity, and mechanism of metal oxides. The findings suggest that the use of weakly crystalline birnessite rice husk biomass composites (MBC) can immobilize heavy metals in cadmium-polluted soil and wastewater through monolayer chemisorption, achieving a maximum adsorption capacity of 115.04 mg g-1 and reducing Cd concentration by up to 62.5%.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Chinky Kochar, Lakhan Taneja, Praveen Kumar Yadav, S. Swarupa Tripathy
Summary: In this study, MnO2-loaded KOH-activated biochar derived from water caltrop peel was used to remediate lead and cadmium from water. MnO2-loaded activated biochar exhibited high surface area and porous structure. Mn(1)aBC showed the highest efficiency for lead and cadmium removal, with removal capacities of 116.96 and 102.67 mg/g, respectively. Response Surface Methodology (RSM) was used to optimize the adsorption process parameters. The developed adsorbent is a low-cost and environmentally friendly material derived from waste caltrop peel and can effectively target a broad range of initial lead and cadmium concentrations in water.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Physical
Aykut Caglar, Nahit Aktas, Hilal Kivrak
Summary: Cd-doped TiO2 catalysts were prepared and characterized, showing altered electronic structure and surface properties of TiO2. The 0.1% Cd/TiO2 catalyst exhibited the best photocatalytic glucose electro-oxidation activity with high stability and low resistance, making it a promising catalyst for photocatalytic fuel cells.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Engineering, Chemical
Jwan T. Hasan, Rasha H. Salman
Summary: The nanostructured MnO2/carbon fiber composite electrode was prepared using anodic electrodeposition process. Its electrosorptive properties in removing cadmium ions from aqueous solutions were studied, and the optimum conditions were determined. The experimental results showed good fit with the Freundlich isotherm model and the pseudo-second-order kinetic model.
DESALINATION AND WATER TREATMENT
(2021)
Article
Chemistry, Analytical
Wenxian Zhang, Jun Chen, Guangchun Xiao, Weiguang Su, Anqing Li, Pengbo Liu, Wenhong Zhang, Xiangxiang Zhou, Chonghai Xu, Li Wang
Summary: A novel hydrogel electrode for simultaneous detection of Cd2+ and Pb2+ was developed, showing good electrochemical performance and sensitivity in experiments. By optimizing the modification conditions, the selectivity and detection limit of the hydrogel electrode can be improved, making it suitable for detecting heavy metal ions in real human serum samples.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Nakarin Subjalearndee, Nanfei He, Hui Cheng, Panpanat Tesatchabut, Priew Eiamlamai, Somruthai Phothiphiphit, Orapan Saensuk, Pimpa Limthongkul, Varol Intasanta, Wei Gao, Xiangwu Zhang
Summary: This study investigates the fabrication of graphene oxide (GO) and manganese dioxide (MnO2) composite fibers and their application as fiber cathodes in Zn-ion batteries. The study examines the effects of MnO2 micromorphology and mass loading on the properties of the resulting composite fibers. The researchers find that thermal annealing under an argon atmosphere is the most effective method to avoid MnO2 dissolution and leaching.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Yuanyuan Liu, Wei Zhu, Zhen Chen, Qiang Yu, Qi Hu, Zhaoyi Zheng, Lai Gui, Yuzhu Song
Summary: Anode materials PbO2-MnO2, PbO2-CoOx, and PbO2-MnO2-CoOx were prepared by anodic oxidation in the nitrate system. The PbO2-MnO2-CoOx anodes showed superior electrochemical performance compared to traditional PbO2, PbO2-MnO2, and PbO2-CoOx anodes, indicating practical value for reducing energy consumption.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Environmental Sciences
Mengmeng Cheng, Chenxue Yao, Yan Su, Jinglei Liu, Lijian Xu, Shifeng Hou
Summary: The study developed a manganese dioxide (MnO2) membrane-type adsorbent using vacuum filtration method with graphene oxide (GO) and amino-beta-cyclodextrin (amino-beta-CD). The membrane exhibited specific selectivity and high adsorption capacity for lithium ions, successfully extracting lithium ions from seawater.
Review
Chemistry, Applied
Haining Zhang, Jinzhao Song, Sixin Wang, Qingxin Song, Hui Guo, Ziyong Li
Summary: Considering the harmful effects of heavy metal ions on the environment and human health, significant efforts have been made to develop new chemosensors for the detection of lead, cadmium, and mercury ions. Recently, chemosensors based on various macrocyclic segments have gained attention and have been extensively studied for their ability to sense heavy metals by controlling their coordination environments. This review discusses the recent advances in macrocycle-based chemosensors for lead, cadmium, and mercury ions, which are categorized into six categories based on their structural characteristics.
Article
Chemistry, Multidisciplinary
Jing Wan, Peiyuan Ji, Bangxing Li, Yi Xi, Xiao Gu, Li Huang, Mingquan He, Chenguo Hu
Summary: This study demonstrates that Al doping can significantly enhance the specific capacitance and cycling stability of delta-MnO2 supercapacitor cathode, attributed to the introduction of more active sites and improved electronic transport. Additionally, calculations show that doped systems have smaller surface energies, leading to better cycling lifetime.
CHEMICAL COMMUNICATIONS
(2022)
Article
Green & Sustainable Science & Technology
Binyuan Tang, Fan Yang, Chaoyi Chen, Changping Shi, Wei Deng, Junqi Li, Liangxing Jiang
Summary: In this study, a novel lead-based pseudo dimensional stable anode (LBP-DSA) was proposed to overcome the deficiencies of lead-based anodes and retain the advanced characteristics of the DSA. A robust lead-based/TiB2 substrate was constructed to eliminate lead pollution and provide suitable anchors for subsequent layer adhesion. The synergistic effects of TiB2 with gamma-MnO2 showed great potential in energy-saving and hazardous anode slime reduction, making LBP-DSA a promising candidate for cleaner production of metallic manganese.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Zheng Li, Michael Lewin, Patricia Ruiz, Anne E. Nigra, Noelle B. Henderson, Jeffery M. Jarrett, Cynthia Ward, Jianhui Zhu, Jason G. Umans, Marcia O'Leary, Ying Zhang, Angela Ragin-Wilson, Ana Navas-Acien
Summary: This study measured blood metals in American Indian communities and found that the overall exposure levels were higher in these communities, with associations with demographic, behavioral, and weight-related factors. Participants from North Dakota and South Dakota had the highest blood metal levels. These findings will help guide the development of education and intervention strategies to reduce harmful exposures.
ENVIRONMENTAL RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Qasim Abbas, Lianghua Wen, Abdul Mateen, Najam Ul Hassan, Asim Idrees, Zia Ur Rehman, Majed A. Bajaber, Muhammad Sufyan Javed
Summary: This study synthesized hexagonal-phase manganese dioxide nanoparticles on conductive carbon cloth through a simple hydrothermal strategy. The resulting structure showed a large specific surface area and high porosity, making it an excellent candidate for positive electrode materials in high-performance supercapacitors. The electrode exhibited a high specific capacitance and excellent cycling stability.
Article
Electrochemistry
Xin Su, Xiaoping Wang, Javier Bareno, Yan Qin, Frederic Aguesse, Wenquan Lu
Summary: To solve the instability issue between nickel-rich layered oxide LiNixCoyMnzO2 (NCM) and liquid electrolytes, researchers have developed a wet impregnation method to apply an ultra-thin Al2O3 coating layer on the surface of NCM particles. This coating layer interacts strongly with the particles and results in surface Al-doped NCM, reducing the surface resistance of lithium diffusion and stabilizing the solid electrolyte interface. Compared to other methods, wet impregnation coating provides a low-cost, ultra-thin and uniform coating with surface doping on NCM particles.
Article
Chemistry, Analytical
M. Milojevic-Rakic, D. Popadic, A. Janosevic Lezaic, A. Jevremovic, B. Nedic Vasiljevic, S. Uskokovic-Markovic, D. Bajuk-Bogdanovic
Summary: This study investigated the environmental importance of zeolites MFI, FAU, and BEA through their spectroscopic, adsorptive, and antioxidant responses. It was found that FAU zeolite exhibited the best performance in both insecticide adsorption and radical-scavenging capabilities. The proposed mechanism for zeolite adsorption of insecticides relies on hydrogen bonding with hydroxyl/siloxane groups, suggesting their potential application in ecotoxic species removal.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2022)
Article
Chemistry, Applied
Jelena Rupar, Danica Bajuk-Bogdanovic, Maja Milojevic-Rakic, Jugoslav Krstic, Kush Upadhyay, Nemanja Gavrilov, Aleksandra Janosevic Lezaic
Summary: This study introduces a novel electrochemical method to prepare N-doped alginate-based carbon precursors with monodispersed zinc ions, showcasing their unique physical and chemical properties. The obtained carbon materials were evaluated comprehensively and showed excellent surface area and porosity evolution characteristics, highlighting their potential as electrode materials for supercapacitors. The controlled dispersion of zinc and N-doping with rivanol generated bio-based materials with outstanding capacitance and stability, indicating promising prospects for engineering future supercapacitors.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Ana Gledovic, Aleksandra Janosevic-Lezaic, Slobodanka Tamburic, Snezana Savic
Summary: This study assessed and improved the oxidative stability of red raspberry seed oil and identified potential natural antioxidants for protection. Additionally, it explored the use of biodegradable polyglycerol esters-based surfactants for preparing stable nanoemulsions.
Article
Chemistry, Physical
Marjetka Savic, Aleksandra Janosevic Lezaic, Nemanja Gavrilov, Igor Pasti, Bojana Nedic Vasiljevic, Jugoslav Krstic, Gordana Ciric-Marjanovic
Summary: Composites of N,O-doped carbon/ZnO/ZnS and N,O-doped carbon/ZnO (C-(MOF-5/PANI)) were synthesized by the carbonization of MOF-5/PANI composites. These composites were comprehensively characterized and exhibited high S-BET, electrical conductivity, and specific capacitance. Acid etching treatment further improved the surface area and capacitance, making them promising electrode materials for supercapacitors.
Review
Chemistry, Physical
Jelena Rupar, Danijela Tekic, Aleksandra Janosevic Lezaic, Kush K. Upadhyay
Summary: The limited reaction rate of the oxygen reduction reaction (ORR) is a limitation in fuel cells and metal-air batteries. Carbon-based catalysts, including those derived from alginate, have shown great promise in terms of economic viability and activity for ORR catalysis.
Article
Chemistry, Physical
Noha A. Elessawy, Gordana Backovic, Janesuda Hirunthanawat, Marta Martins, Lazar Rakocevic, Marwa H. Gouda, Arafat Toghan, Mohamed E. Youssef, Biljana Sljukic, Diogo M. F. Santos
Summary: In this study, PET bottle waste was transformed into nitrogen-doped graphene (NG) as a valuable catalyst support, and NG/Pt electrocatalysts were prepared for direct borohydride peroxide fuel cells (DBPFCs). The results show that NG/Pt catalysts display high catalytic activity, and a DBPFC using NG/Pt_1 catalyst achieved a high power density. This research has the potential to lower the cost of fuel cells and boost the usage of electrochemical energy devices.
Article
Engineering, Biomedical
Maja Rankovic, Anka Jevremovic, Aleksandra Janosevic Lezaic, Aleksandar Arsenijevic, Jelena Rupar, Vladimir Dobricic, Bojana Nedic Vasiljevic, Nemanja Gavrilov, Danica Bajuk-Bogdanovic, Maja Milojevic-Rakic
Summary: Acridine and its derivatives (9-chloroacridine and 9-aminoacridine) supported on zeolite Y were investigated for their potential as delivery systems for anticancer agents. Drug loading was successfully achieved on the zeolite surface, with the highest drug release observed for zeolite-supported 9-aminoacridine. The cytotoxicity of the supported acridines on colorectal carcinoma cells was improved by the zeolite carrier, especially for zeolite-impregnated 9-aminoacridine.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Review
Biochemistry & Molecular Biology
Ines Belhaj, Monica Faria, Biljana Sljukic, Vitor Geraldes, Diogo M. F. Santos
Summary: Direct liquid fuel cells (DLFCs) use liquid fuel instead of hydrogen and have higher energy densities and fewer issues with transportation and storage. The direct borohydride-hydrogen peroxide fuel cell (DBPFC) is a promising technology that uses sodium borohydride (NaBH4) as fuel and hydrogen peroxide (H2O2) as oxidant. Introducing H2O2 as the oxidant increases the cell voltage compared to direct borohydride fuel cells operating on oxygen.
Article
Polymer Science
Anka Jevremovic, Marjetka Savic, Aleksandra Janosevic Lezaic, Jugoslav Krstic, Nemanja Gavrilov, Danica Bajuk-Bogdanovic, Maja Milojevic-Rakic, Gordana Ciric-Marjanovic
Summary: The environmental application of carbonized composites of Zn-containing metal-organic framework MOF-5 and polyaniline (PANI) was investigated. The composites exhibited excellent adsorption performance for pesticides and dyes. The presence of O/N functional groups in the composites was crucial for the adsorption of nitrogen-rich pollutants. Furthermore, the composites showed better adsorption ability than carbonized PANIs and comparable or better adsorption ability than carbonized MOF-5.
Article
Chemistry, Multidisciplinary
Kristina Radinovic, Jadranka Milikic, Aldona Balciunaite, Zita Sukackiene, Marko Boskovic, Loreta Tamasauskaite-Tamasiunaite, Biljana Sljukic
Summary: Six CoAu electrodes were prepared using different gold-containing solutions and deposition times. The electrodes were characterized and their potential applications in environmental sensing and fuel cells were assessed. The results showed that the prepared CoAu electrode exhibited excellent performance in detecting arsenic and as an anode in fuel cells, achieving high peak power density.
Article
Electrochemistry
Jadranka Milikic, Rodolfo O. Fuentes, Julia E. Tasca, Diogo M. F. Santos, Biljana Sljukic, Filipe M. L. Figueiredo
Summary: This study investigates the electrochemical activity of nickel-doped ceria nanopowders for oxygen reduction and oxygen evolution reactions in alkaline medium. The results show that the synthesized nanopowders exhibit good bifunctional electrocatalytic activity, indicating their potential application in devices such as rechargeable metal-air batteries.
Article
Chemistry, Multidisciplinary
Nemanja Cvjetan, Reinhard Kissner, Danica Bajuk-Bogdanovi, Gordana Ciric-Marjanovi, Peter Walde
Summary: This study investigates the template-assisted formation of conductive emeraldine salt form of polyaniline (PANI-ES) under mild and environmentally friendly conditions using hemin as a cost-effective catalyst, and SDS micelles as templates. The results demonstrate that the optimized reaction conditions yield PANI-ES-like products as the dominant species.
Article
Chemistry, Multidisciplinary
Aldona Balciunate, Kush K. Upadhyay, Kristina Radinovic, Diogo M. F. Santos, M. F. Montemor, Biljana Sljukic
Summary: The β-Ni(OH)(2) nanoplatelets prepared by a hydrothermal procedure show efficient electrocatalytic performance for oxygen reduction, oxygen evolution, and hydrogen evolution reactions in alkaline media. The material also exhibits superior stability. This research is significant for the development of efficient electrocatalysts.
Article
Engineering, Chemical
Ana Gledovic, Danica Bajuk-Bogdanovic, Snezana Uskokovic-Markovic, Leposava Pavun, Snezana Savic, Aleksandra Janosevic Lezaic
Summary: In this study, several essential oils (EOs) were incorporated into nanoemulsions (NEs) as potential carriers for natural bioactives. The type of EO, surfactant, and oil mix concentration were found to be crucial factors for NE properties and stability. Raman spectra of the EOs confirmed the active ingredients and their interaction with the nanocarrier. Overall, oregano-loaded NEs were the most effective and stable system, preserving its high antioxidant activity during storage.
HEMIJSKA INDUSTRIJA
(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)
