Article
Chemistry, Analytical
Narayanan Jayaraman, Yuvaraj Palani, Raghava Rao Jonnalagadda, Easwaramoorthi Shanmugam
Summary: A multiplex electrochemical sensor was developed using graphene oxide functionalized with thymine and carbohydrazide. The sensor showed excellent electrode stability and selectivity towards Hg(II) and Cr(VI). The large surface area and conductivity of graphene oxide, coupled with functionalization, resulted in better selectivity for Hg(II) and Cr(VI) over other metal ions.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Xuan Wang, Chenfei Xu, Yuxian Wang, Wei Li, Zhengbo Chen
Summary: The research team developed an electrochemical sensor based on T-Hg2+-T coordination, which can accurately and sensitively detect Hg2+. The sensor has a wide linear range and low detection limit, and successfully detected Hg2+ in river water samples, demonstrating its potential for environmental monitoring.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Yuhong Wang, Hao Qu, Rongrong Wang, Baolei Dong, Lei Zheng
Summary: This study presents a label-free biosensor for detecting Hg(II) in dairy products, showing high selectivity and low detection limit, with potential application in the analysis of heavy metal residues in complex systems. The graphene field-effect transistor modified with aptamers effectively enables rapid assaying, providing a promising approach for monitoring mercury ion residues in milk.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Yue Wang, Hongguo Zhai, Jiaqi Yin, Qi Guo, Yuhao Zhang, Qingqing Yang, Falan Li, Xia Sun, Yemin Guo, Yanyan Zhang
Summary: In this study, a dual-target electrochemical biosensor was designed based on silver nanoparticles and exonuclease I-assisted cycle signal amplification strategy to detect Pb2+ and Hg2+ in water. The biosensor exhibited high sensitivity, low detection limits, good reproducibility, and recovery rate. The cycle amplification strategy supported by this enzyme has promising applications in metal ion detection.
Article
Spectroscopy
Min Chen, Jun Wang, Qianbo Zhang, Jinsheng Zhang, Zhiming Chen, Rongguo Sun
Summary: In this study, N, S co-doped carbon nanodots (NS-CDs) were used for fluorescent monitoring of Hg2+ with high sensitivity. Thymine modification further enhanced the sensitivity and the sensing system was also applicable for Hg2+ detection in tap water.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Analytical
Miao Zhong, Shengyuan Yang, Lei Chen, Chen Liu, Jiao Shi, Hao Liang, Xilin Xiao, Le Li, Jinquan Liu
Summary: A novel fluorescent sensing method for highly sensitive detection of Hg2+ was developed using a triple-helix molecular switch (THMS) and exonuclease III (Exo III)-assisted signal amplification. The method showed a linear detection range of 0.01-50 nM and could detect Hg2+ at concentrations as low as 1.04 pM. It demonstrated potential applications in environmental and food monitoring.
ANALYTICA CHIMICA ACTA
(2022)
Review
Electrochemistry
Otavio Augusto L. dos Santos, M. Sneha, T. Devarani, M. Bououdina, Bianca Pizzorno Backx, J. Judith Vijaya, S. Bellucci
Summary: Sensor technology development is a global demand, with significant advances made in the field of nanotechnology. Sensors with spinel and perovskite structures show interesting performances, and combining them with graphene derivatives has the potential to improve sensor capabilities.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Qingtao Yu, Luo Wei, Xiaoyong Yang, Chong Wang, Jikun Chen, Hongda Du, Wanci Shen, Feiyu Kang, Zheng-Hong Huang
Summary: Graphene oxide (GO) has great potential in various fields. A scalable and low-cost method for synthesizing GO through electrochemical oxidation using a container with holes as the anode region is proposed in this study. The use of this method allows for a continuous and cost-effective preparation of graphene oxide, which can be further utilized as a high-conductivity substrate for non-enzymatic glucose biosensors.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Analytical
Su Bin Han, Min Ji Kim, Soo Suk Lee
Summary: We developed a molecular beacon-based electrochemical biosensor for highly sensitive and specific detection of microRNA-21. The designed oligonucleotide probe, containing a nucleotide sequence complementary to miR-21 and multiple thymines, allows the formation of a T-Hg2+-T complex-based molecular beacon on the electrode surface. A ferrocene moiety is used as the electrochemical signal indicator. The sensor demonstrated excellent miR-21 detection sensitivity and specificity, even in complex matrix such as human serum.
Article
Chemistry, Applied
Naghmeh Gholamalizadeh, Saeedeh Mazinani, Majid Abdouss, Ali Mohammad Bazargan, Fataneh Fatemi
Summary: A graphene ink coating was printed on a flexible substrate to create a biosensor electrode for glucose detection. The biosensor demonstrated high sensitivity, low cost, and excellent repeatability, with resistance to interference.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Multidisciplinary
Zachary T. Johnson, Kelli Williams, Bolin Chen, Robert Sheets, Nathan Jared, Jingzhe Li, Emily A. Smith, Jonathan C. Claussen
Summary: Neonicotinoids, the fastest-growing insecticide in the global pesticide market, can control a range of pests but have led to a decline in non-target organisms. A graphene-based sensor platform utilizing laser-induced graphene for neonicotinoid detection has been developed, allowing for low detection limits and rapid response time without the need for chemical synthesis. These scalable sensors have the potential for widespread mapping of neonicotinoids in watersheds and use in various electrochemical sensor devices.
Article
Chemistry, Analytical
Shangshang Ma, Qing Zhang, Jun Zhu, Hongwei Shi, Keying Zhang, Yizhong Shen
Summary: By designing a three-dimensional reduced graphene oxide doped with silver nanoparticles, an effective sensing interface was created to detect and evaluate the Hg2+ content in food and human blood samples, providing valuable support for safeguarding food safety and human health.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Guofang Wang, Siyi Zhang, Qinyu Wu, Jingzhi Zhu, Suhua Chen, Yuanyuan Lei, Yanmei Li, Haomin Yi, Liyin Chen, Zi-Qi Shi, Yi Xiao
Summary: A sensor based on an ITO/APTES/r-GO@Au electrode was developed for separate and simultaneous determination of phenolic pollutants. The modified electrode exhibited excellent electrical properties and a good linear relationship with the phenolic pollutants. This sensor showed great promise as a low-cost, sensitive, and rapid method for simultaneous determination of drug-derived pollutants.
Article
Chemistry, Analytical
Ri Wang, Chen-Yu Xiong, Yong Xie, Ming-Jie Han, Yu-Hao Xu, Chao Bian, Shan-Hong Xia
Summary: In this study, a novel electrochemical sensor was developed by coating an electrode with chitosan/graphene oxide/molybdenum disulfide/Au nanoparticles and utilizing a thymine-Hg2+-thymine base pair to detect trace Hg2+ in water. The sensor showed a low detection limit and interference resistance, and demonstrated satisfactory recovery in tap water samples.
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Robert G. Hjort, Cicero C. Pola, Raquel R. A. Soares, Jemima Opare-Addo, Emily A. Smith, Jonathan C. Claussen, Carmen L. Gomes
Summary: Saliva-based sensors are crucial in medical diagnostics and sports medicine for monitoring health and performance. Researchers have developed amperometric lactate and coulometric potassium test strip sensors using laser-induced graphene, enabling low-cost and frequent monitoring.
ACS APPLIED NANO MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Gufeng Li, Shaoqing Li, Rui Wang, Min Yang, Lizhu Zhang, Yanli Zhang, Wenrong Yang, Hongbin Wang
Summary: Functionalized gold nanoparticles (GNPs) have been widely used in sensing applications, especially for detecting metal ions. This article describes the use of 13 nm GNPs functionalized by glutathione (GSH) and conjugated with a rhodamine 6G derivative (Rh6G2) to detect Hg(II) in cells. The detection strategy is based on the ion-catalyzed hydrolysis of Rh6G2, resulting in a significant change in the fluorescence of GNPs-GSH-Rh6G2 from an OFF to an ON state.
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Yichao Wang, Ali Zavabeti, Qifeng Yao, Thi Linh Chi Tran, Wenrong Yang, Lingxue Kong, David Cahill
Summary: Nanobionics-driven synthesis is an environmentally friendly approach for designing and synthesizing functional materials on a nanoscale. In this work, plasmonic HxMoO3 was synthesized using a green nanobionics approach by interacting chloroplasts with MoO3 nanoflakes. The synthesized plasmonic materials showed tunable plasmon resonances and high photocatalytic activities.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Dulini Fernando, Motilal Mathesh, Jackie Cai, Wenrong Yang
Summary: A facile polymer-directed metal-organic framework (MOF)-based nanoarchitechtonics was developed to enhance the catalytic efficiency of multi-enzyme cascade reactions through substrate channeling. The new method involved the simultaneous synthesis of MOF and co-immobilization of enzymes, resulting in a closely packed nanoarchitecture with enhanced substrate channeling. The enzyme cascade reaction system showed a 3.5-fold increase in catalytic activity compared to free enzymes.
Article
Chemistry, Analytical
Yingqin Zhang, Ying Liao, Xuehu Yin, Yanli Zhang, Zhi Yang, Hongbin Wang, Wenrong Yang, Pengfei Pang
Summary: An electrochemical biosensor based on rolling circle amplification (RCA) was developed for the detection of lead ion (Pb2+). The biosensor utilized Pb2+-dependent DNAzyme and DNA-templated silver nanoclusters (DNA-AgNCs) for amplification, and showed high sensitivity and selectivity for Pb2+ analysis in the range of 1 pM-10 μM with a detection limit of 0.3 pM. This strategy has potential applications in real water samples and environment analysis.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Ru Feng, Hanqing Yin, Fuhao Jin, Wei Niu, Wanting Zhang, Jingquan Liu, Aijun Du, Wenrong Yang, Zhen Liu
Summary: This study demonstrates that NbB2 nanoflakes exhibit excellent selectivity and durability in ambient electrochemical N-2 reduction reaction, leading to efficient NH3 production. The high selectivity is attributed to the presence of abundant active vacancies on the surface, which makes the N-N triple bonds in N-2 molecule easier to break for NH3 production.
Article
Agriculture, Multidisciplinary
Nandini Bhattacharya, Mandira Kochar, Himadri B. Bohidar, Wenrong Yang, David M. Cahill
Summary: Reduced graphene oxide, bio-reduced using a microbial source, was used as a nanocarrier for the efficient delivery of the plant growth regulator, indole acetic acid, to maize plants. The loaded reduced graphene oxide displayed sustained release behavior and significantly enhanced the growth of maize plants.
ACS AGRICULTURAL SCIENCE & TECHNOLOGY
(2023)
Review
Agriculture, Multidisciplinary
Ananya Padmakumar, Chowdary Pavani, Kalyani Eswar, Lingxue Kong, Wenrong Yang, Subramanium Gopalakrishnan, David Miles Cahill, Aravind Kumar Rengan
Summary: The use of bacterial biocontrol agents (BBCAs) in plant protection has increased due to the rising awareness of chemical risks and the need for sustainable agriculture. Nanotechnology has facilitated the development of efficient and ecologically sound nanoformulations, such as bacteria premised nanobiopesticides (B-NBPs). These B-NBPs are synthesized using nanomaterials with amended properties at the nanoscale. This article provides an overview of BBCAs and their antagonistic mechanisms, focusing on the significance of BNPs in plant infection management and addressing concerns related to the efficacy of B-NBPs.
ACS AGRICULTURAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Na Kong, Jin He, Wenrong Yang
Summary: Controlling and understanding the chemistry of molecular junctions is important in various fields. Stochastic single-entity collision electrochemistry (SECE) provides powerful tools to study single entities at the nanoscale. Molecular junctions formed by SECE collision have potential applications in monitoring molecular dynamics with high spatial and temporal resolution.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Analytical
Yuru Min, Donglei Fu, Honglei Liu, Chenyao Yuan, Lei Wang, Mengyu Cao, Aowei Sun, Wenrong Yang, Jingquan Liu
Summary: Oxalyldihydrazide has been found to be an effective analytical reagent for determining formaldehyde and its analogs. By using UV-vis spectrophotometry, formaldehyde and other similar compounds like acetaldehyde, acetone, and benzaldehyde can be detected in solution. This method is also applicable for detecting formaldehyde in clams with high selectivity and sensitivity.
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Xiangyu Zhang, Kai Zhao, Hong Li, Yanhui Li, Wenrong Yang, Jingquan Liu, Da Li
Summary: Developing noble-metal-free bifunctional electrocatalysts with high catalytic ability at an effective cost for hydrogen production via water-splitting is crucial. The plasma engraving strategy is used to synthesize N-doped CoFeS on cobalt foam with a multi-interface and defect hierarchical structure.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Agriculture, Multidisciplinary
Anamika Pal, Pawan Kaur, Neeraj Dwivedi, Jim Rookes, Himadri B. Bohidar, Wenrong Yang, David Miles Cahill, Palash Kumar Manna
Summary: Clay-nanocomposite materials have been widely used for drug delivery systems, but their application in agriculture is less explored. The combination of nanoclay and active ingredients can create a biocompatible and environmentally friendly delivery vehicle for micronutrients, pesticides, etc., improving crop growth. This review provides an overview of the synthesis and application of clay-based nanocomposites in agriculture, addressing issues related to the delivery of active ingredients and biological macromolecules for crop protection and sustainability.
ACS AGRICULTURAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Xiangyu Zhang, Hong Li, Yanhui Li, Xianhui Wang, Hongbin Wang, Wenrong Yang, Jingquan Liu, Da Li
Summary: To replace expensive precious metal catalysts, it is important to develop inexpensive and powerful bifunctional catalysts for hydrogen production. In this study, a hierarchical structure Fe-Co3S4/MoS2 catalyst was synthesized using excellent templates and elemental doping, demonstrating excellent catalytic performance and long-term stability for overall water splitting.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Xiangyu Zhang, Hong Li, Yanhui Li, Xianhui Wang, Hongbin Wang, Wenrong Yang, Jingquan Liu, Da Li
Summary: To replace expensive precious metal catalysts for water electrolysis, it is important to develop inexpensive and powerful bifunctional catalysts. In this study, a hierarchical structure Fe-Co3S4/MoS2 catalyst was synthesized and showed excellent catalytic performance and stability for overall water splitting. The Fe doping and component modulation contributed to the high intrinsic activity and excellent transfer coefficients of the catalyst.
DALTON TRANSACTIONS
(2023)
Article
Nanoscience & Nanotechnology
Yanling Qiu, Zhiqiang Liu, Yuesheng Sun, Chunxiao Wang, Colin J. Barrow, Joselito M. Razal, Wenrong Yang, Liang Cui, Jingquan Liu
Summary: Reasonable design of materials with complex nanostructures and diverse chemical compositions is crucial in the field of energy storage. This study demonstrates the construction of nano-core-shell structure (NCSS) electrodes by directly generating binary metal hydroxide nanosheets on Cu7KS4 nanorods. The resulting CKS@N0.75C0.25OH/NF electrode exhibits excellent specific capacitance and cycle life. The assembled CKS@N0.75C0.25OH/NF//AC all-solid-state asymmetric supercapacitor achieves a high energy density and superior cycle life. The use of polymetallic hydroxides to construct NCSS electrodes holds great research significance and broad application prospects.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Chemistry, Multidisciplinary
Chanchal Mony, Pawan Kaur, James E. Rookes, Damien L. Callahan, S. Eswaran, Wenrong Yang, Palash Kumar Manna
Summary: The complex process of photosynthesis requires precise arrangements of light-harvesting molecules. Enhancing photosynthesis through self-assembling systems and nanoparticle-mediated artificial embedding of photosystems can improve plant productivity and efficiency. Plant nanobionics offers opportunities to supplement plants with nanostructures that enhance resistance to pathogens, adaptability to stresses, and sunlight harnessing ability.
ENVIRONMENTAL SCIENCE-NANO
(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)
