Article
Chemistry, Physical
Jinze Liu, Ling Cheng, Yating Wang, Rongzhen Chen, Chuqian Xiao, Xiaodong Zhou, Yihua Zhu, Yuhang Li, Chunzhong Li
Summary: This study successfully fabricated an electrochemically stable Cu2O catalyst and found that Cu+ species play a role in promoting C-C coupling during CO2 reduction. Furthermore, coating with AgOx clusters enhances the ethylene yield.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Aleksandar Markovic, Sladana Savic, Andrej Kukuruzar, Zoltan Konya, Dragan Manojlovic, Milos Ognjanovic, Dalibor M. Stankovic
Summary: In this study, different synthesis procedures for making PbO2-graphitic carbon nitride (g-C3N4) electrode were examined for the electrochemical degradation of Reactive Black 5 (RB5) textile azo dye. PbO2 with varying morphology was formed through the reaction of PbOH3- with ClO- in the presence of different surfactants (CTAB and TBAP) under conventional conditions. The obtained materials were combined with g-C3N4 and characterized morphologically and electrochemically. The composite of PbO2 synthesized using CTAB as template and g-C3N4 showed the best performance for RB5 dye removal, suggesting its potential for wastewater treatment and pollutant removal.
Article
Chemistry, Physical
Nasser A. M. Barakat, Enas Ahmed, A. A. Farghali, Mamdouh M. Nassar, Gehan M. K. Tolba, Ayman H. Zaki
Summary: The reported Ni-based electro-catalysts are not suitable as anode materials for alcohol-based proton exchange membrane fuel cells due to their high onset potentials. However, these materials can be used for hydrogen generation from alcohols with small biases. In the electro-oxidation of tri(ammonium) phosphate, Ni-decorated graphene is found to be an effective catalyst, and the active layer is not consumed during the reaction.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Food Science & Technology
Xin Luo, Mingyan Ai, Yongyan Wu, Qia Wang, Hongbo Song, Qun Huang, Jiankang Lu
Summary: The study investigated the effects of malondialdehyde (MDA) oxidation treatment on the immunoreactivity and digestion of amandin. The results showed that MDA treatment significantly reduced the immunoreactivity of amandin and led to protein aggregation, resulting in slowed down digestion.
FOOD QUALITY AND SAFETY
(2023)
Article
Food Science & Technology
Xin Luo, Mingyan Ai, Yongyan Wu, Qia Wang, Hongbo Song, Qun Huang, Jiankang Lu
Summary: MDA treatment reduces the immunoreactivity of amandin, leads to protein aggregation, slows down the digestion of amandin, and alters the immunoreactivity of amandin during digestion.
FOOD QUALITY AND SAFETY
(2023)
Article
Biochemistry & Molecular Biology
An-Ting Tu, Jer-An Lin, Chieh-Hsiu Lee, Yi-An Chen, Jung-Tsung Wu, Ming-Shiun Tsai, Kuan-Chen Cheng, Chang-Wei Hsieh
Summary: Impregnation of black garlic with epigallocatechin gallate (EGCG) was found to decrease the formation of the intermediate product 3-deoxyglucosone (3-DG) and further attenuate 5-HMF formation, possibly due to an additional reaction with 3-DG accelerated by EGCG. This study provides new insights regarding the role of EGCG in blocking 5-HMF formation.
Article
Chemistry, Physical
Tingting Yue, Yue Shi, Yaxin Ji, Jingchun Jia, Ying Chang, Junxiang Chen, Meilin Jia
Summary: In this study, we developed efficient and stable bifunctional electrocatalysts for MOR and UOR by integrating CeO2 and Ni0.85Se nanoparticles into three-dimensional N-doped carbon nanosheets. By optimizing the selenization temperature, CeO2-Ni0.85Se-550-NC exhibited the best electrochemical performance, requiring low potentials to achieve high catalytic activity. The synergistic effect between CeO2 and Ni0.85Se played a crucial role in the outstanding catalytic performance of CeO2-Ni0.85Se-550-NC.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Applied
Mengyu Chen, Wenjie Huang, Zhibin Yin, Wenyang Zhang, Qian Kong, Shaowen Wu, Wenyan Li, Zhao Bai, Alisdair R. Fernie, Xiaodan Huang, Shijuan Yan
Summary: The research found metabolic differences among black wolfberry fruits grown in different geographical regions, with some samples showing significantly different metabolite profiles with higher levels of beneficial components, providing a new direction for further studies on the health benefits of black wolfberry fruits.
Article
Food Science & Technology
Jian Liang, Jianghao Sun, Pei Chen, Jared Frazier, Virginia Benefield, Mengliang Zhang
Summary: This study applied various analytical methods to analyze black pepper samples and successfully classified them based on their origins. The application of TD-DART-MS in analyzing plant-based food materials was demonstrated as a simple and high throughput method for classification studies.
FOOD RESEARCH INTERNATIONAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Wenjun Liu, Liming Dai, Yiming Hu, Ku Jiang, Qian Li, Yilin Deng, Junjie Yuan, Jian Bao, Yucheng Lei
Summary: The development of a promising and novel bifunctional electrocatalytic material for water splitting, NCS/NF, shows low potential in the presence of urea, laying the foundation for exploring the feasibility of low energy-intensive and large-scale hydrogen production in the future.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Biochemical Research Methods
Utpal Bose, James A. Broadbent, Angela Juhasz, Shaymaviswanathan Karnaneedi, Elecia B. Johnston, Sally Stockwell, Keren Byrne, Vachiranee Limviphuvadh, Sebastian Maurer-Stroh, Andreas L. Lopata, Michelle L. Colgrave
Summary: We explored the influence of protein extraction buffer selection and processing method on protein yield and allergen detection in processed and unprocessed black soldier fly (BSF) samples. We detected a total of 33 putative allergens by comparing the detected BSF proteins with sequences from public allergen protein databases. A targeted LC-MRM-MS assay was developed for tropomyosin, highlighting the importance of buffer selection and processing conditions in reducing allergenicity of BSF samples.
JOURNAL OF PROTEOMICS
(2022)
Article
Multidisciplinary Sciences
Young-Jin Ko, Jun-Yong Kim, Woong Hee Lee, Min Gyu Kim, Tae-Yeon Seong, Jongkil Park, YeonJoo Jeong, Byoung Koun Min, Wook-Seong Lee, Dong Ki Lee, Hyung-Suk Oh
Summary: The authors investigated the performance of fluorine-doped tin oxide catalyst for electrochemical synthesis of formate from carbon dioxide and achieved stable and efficient results. This finding provides a simple and effective approach for designing active and durable electrocatalysts.
NATURE COMMUNICATIONS
(2022)
Article
Environmental Sciences
Mahbuboor Rahman Choudhury, Rajinikanth Rajagopal, Wesley Meertens, Md. Saifur Rahaman
Summary: This study evaluated the performance of an integrated electrochemical process that combines electro-oxidation and electro-coagulation methods to remove organic and nitrogen loads from high-strength leachate. The integrated system demonstrated enhanced removal capacity for ammonia nitrogen, total Kjeldahl nitrogen, and total nitrogen compared to just electro-oxidation. Increasing the current intensity and lowering the pH further improved the removal efficiency. The integrated system also offered lower energy consumption compared to electro-oxidation alone due to additional oxidation and adsorption-precipitation processes.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Chemistry, Inorganic & Nuclear
Xuliang Pang, Huaiquan Zhao, Yifei Huang, Youchao Liu, Hongye Bai, Weiqiang Fan, Weidong Shi
Summary: By using an oxidative/reductive activation electrochemical reconstruction method, the intrinsic activity of a catalyst has been significantly enhanced, leading to superior catalytic performance. This method involves the reconstruction of active sites on the catalyst surface and the optimization of its chemical composition and electronic structure, enabling applications in reactions such as hydroxymethylfurfural oxidation and 4-nitrophenol hydrogenation.
INORGANIC CHEMISTRY
(2022)
Article
Environmental Sciences
Jeana L. Drake, Tali Mass
Summary: Proteins play an integral role in the formation, structure, and function of black coral skeletons. Analysis of proteins extracted from two species of black corals revealed hundreds of proteins, with nearly 70 of them being each other's best match. Unlike stony corals, black corals have a lower abundance of acidic proteins, suggesting a lesser role in their skeleton formation. Although no distinct chitin binding domains were found, proteins involved in protein and chitin modifications were detected.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Electrochemistry
G. I. Lozano Gutierrez, O. Ornelas Davila, C. Lopez Aguilar, M. M. Davila Jimenez, R. Silva Gonzalez, I. Sires, E. Brillas, D. Fabregat-Safont, A. F. Roig Navarro, J. Beltran Arandes, J. V. Sancho Llopis
Summary: The electrocatalytic oxidation of meglumine and gadoterate meglumine on a TiO2-Ni(SO4)0.3(OH)1.4 composite anode in alkaline medium was investigated. The composite was prepared by hydrothermal method and characterized using various techniques. The supported composite showed good stability and electro-catalytic activity for meglumine oxidation.
ELECTROCHIMICA ACTA
(2023)
Review
Chemistry, Multidisciplinary
Fengxia Deng, Jizhou Jiang, Ignasi Sires
Summary: The electro-Fenton (EF) process has made significant progress and application in wastewater treatment, particularly at lab and pilot scale, over the past 25 years. This review uses bibliometrics as a tool to quantify the development of EF and introduces useful correlations, summarizing information in a more visual manner for easier analysis and interpretation. China, Spain, and France are the leading countries in terms of publication output, with 83 countries contributing to the growth of EF publications.
Review
Chemistry, Physical
Carlos A. Martinez-Huitle, Manuel A. Rodrigo, Ignasi Sires, Onofrio Scialdone
Summary: In the past decade, updated water directives and ambitious targets like the United Nations' Sustainable Development Goals have emerged to address water scarcity and contamination. Despite numerous strategies for water pollutant removal, the effectiveness against toxic and biorefractory organic molecules still needs improvement. This review discusses the latest innovations and perspectives of electrochemical tools for wastewater treatment, including direct electrochemical oxidation, oxidation mediated by electrogenerated active chlorine, electrocatalytic reduction, and coupled approaches for anodic and cathodic processes.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Gengbo Ren, Sonia Lanzalaco, Minghua Zhou, Pere L. Cabot, Enric Brillas, Ignasi Sires
Summary: The superior endurance of 3 cm2 air-diffusion electrodes(ADEs) fabricated with Nimesh as substrate in Fenton's reaction is proven in this study. These electrodes achieved stable accumulation of H2O2 up to 60 mM at 100 mA for 48 h and showed high performance in degradation of carbenicillin. The photoelectro-Fenton (PEF) process using Nimesh|C-PTFE ADE at 20 mA in an acidic model solution achieved complete degradation of the antibiotic in 13 min.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Zhihong Ye, Wenfeng Zhang, Sonia Lanzalaco, Lele Zhao, Ignasi Sires, Pan Xia, Jun Zhai, Qiang He
Summary: A sulfidation strategy is proposed to enhance the catalytic activity of MIL-88B(Fe) in water treatment. The sulfidated catalyst outperformed the original MIL-88B(Fe) in the degradation of organic micropollutants and can be reused.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Pan Xia, Chaohai Wang, Qiang He, Zhihong Ye, Ignasi Sires
Summary: Single-atom catalysts (SACs) have emerged as a new frontier in advanced oxidation processes (AOPs) by combining the advantages of homogeneous and heterogeneous catalysts. Metal-organic frameworks (MOFs) are considered as ideal precursors for synthesizing SACs. This review describes the synthetic strategies and characterization methods of MOF-derived SACs, as well as their applications in water treatment and electrochemical AOPs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Eva Fores, Cristina Mejias-Molina, Arantxa Ramos, Marta Itarte, Ayalkibet Hundesa, Marta Rusinol, Sandra Martinez-Puchol, Pau Esteve-Briculle, Alejandro Espejo-Valverde, Ignasi Sires, Miquel Calvo, Rosa M. Araujo, Rosina Girones
Summary: Water treatment and reuse have gained acceptance as effective strategies to combat water contamination and scarcity. Electrochemical advanced processes have emerged as a viable alternative for water remediation, offering efficient disinfection of microorganisms. The study aimed to quantify the efficiency of a laboratory-scale electrochemical system in inactivating various microorganisms in synthetic water and urban wastewater. The use of Ti|RuO2-based plate and Si|BDD thin-film as anodes, combined with a stainless-steel cathode, resulted in the production of oxidants and high disinfection efficiency for bacteria and bacteriophages. However, the efficiency was limited for certain microorganisms such as spores and amoebas. Different models must be considered to predict the inactivation kinetics based on the sensitivity of microorganisms.
Article
Chemistry, Physical
Pan Xia, Zhihong Ye, Lele Zhao, Qian Xue, Sonia Lanzalaco, Qiang He, Xueqiang Qi, Ignasi Sires
Summary: An iron single-atom catalyst synthesized using a surfactant-coordinated metal-organic framework approach exhibits excellent catalytic performance and recyclability in the degradation of organic pollutants.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Review
Chemistry, Multidisciplinary
Fengxia Deng, Hugo Olvera-Vargas, Minghua Zhou, Shan Qiu, Ignasi Sires, Enric Brillas
Summary: This review provides a comprehensive overview of the mechanisms of Fe3+ cathodic reduction in the electro-Fenton (EF) process. Different strategies to improve the reduction rate are discussed, categorized into electron transfer control and mass transport control. Electron transfer control strategies include creating active sites in carbon and metal-based materials and using emerging techniques like single-atom catalysis or confinement effects. Mass transport control approaches involve magnetic fields, pulse electrolysis, interfacial Joule heating effects, and photoirradiation. Challenges and future prospects are also mentioned. This review aims to clarify the Fe3+/Fe2+ cycling process in the EF process, providing insights for the smart design of highly effective wastewater treatment and valorization systems at an industrial scale.
Article
Materials Science, Multidisciplinary
Abdoulaye Thiam, Ignasi Sires, Pere L. Cabot, Francisco Alcaide
Summary: This study synthesized Nb-doped titania nanotubes (TNTs) and Nb-doped TiO2 nanoparticles for photocatalytic removal of dye wastewater. The Nb-doped TNTs at 6 at.% Nb showed the best performance with a porous network structure composed of nanotubes and nanosheets, demonstrating a large aspect ratio and uniform pore size distribution. They have the potential to become a prominent photocatalyst for water treatment.
Article
Engineering, Chemical
Monica Reig, Xanel Vecino, Cesar Valderrama, Ignasi Siries, Jose Luis Cortina
Summary: The feasibility of Cu recovery from bottom ash (BA) has been studied for the first time through solid-liquid extraction and electrowinning (EW). By increasing the current density and electrodeposition time, the maximum electrochemical Cu recovery can be achieved. This approach can effectively utilize BA resources and promote the development of a circular economy.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Maria F. Murrieta, Enric Brillas, Jose L. Nava, Ignasi Sires
Summary: In this study, the degradation and mineralization of the drug norfloxacin (NFX) were investigated in a model solution under acidic conditions using an electrochemical process. The results showed that anodic oxidation with active chlorine (AO-HClO) outperformed other treatment methods due to the formation of refractory complexes and the conversion of HClO. Solar photoelectro-Fenton (SPEF-HClO) was the most effective method among Fenton-based treatments. The degradation sequence of NFX was proposed and several primary and stable by-products were identified.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Oscar M. Cornejo, Ignasi Sires, Jose L. Nava
Summary: This study experimentally characterized a rotating cylinder electrode (RCE) reactor for the degradation of the antibiotic ampicillin (AMP) using the photoelectro-Fenton (PEF) process. The results showed that the RCE reactor could continuously produce H2O2 without the need for an air compressor. Under optimum PEF conditions, 10 mg L-1 AMP was completely degraded in just 10 minutes, with low electrolytic energy consumption.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Oscar M. Cornejo, Ignasi Sires, Jose L. Nava
Summary: This work characterizes an innovative electrolyzer for self-sustained H2O2 production and simultaneous degradation of ciprofloxacin by PEF process. The electrolyzer uses two alternated anodes and cathodes to produce H2O2 and degrade ciprofloxacin. By examining various operation conditions, it is demonstrated that the reactor configuration can achieve sufficient H2O2 concentration for PEF treatment without the need for an air pump or compressor. Complete elimination of ciprofloxacin was achieved in 40 minutes with a high mineralization current efficiency and low energy consumption.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)
