Article
Engineering, Manufacturing
Ting Li, Wenying Zhou, Bo Li, Ying Li, Dan Cao, Juanjuan Zhou, Jing Zuo, Jiangtao Cai, Guangheng Wang, Dengfeng Liu, Huiwu Cai
Summary: In this study, a novel core@double-shell structured zinc filler was synthesized and applied in PVDF composites. The results showed that the composites exhibited significantly enhanced dielectric properties and thermal conductivity, suggesting potential applications in the field of microelectronics.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Chemistry, Physical
Wenying Zhou, Ting Li, Mengxue Yuan, Bo Li, Shaolong Zhong, Zhen Li, Xiangrong Liu, Juanjuan Zhou, Yun Wang, Huiwu Cai, Zhi-Min Dang
Summary: This study investigates polymer nanocomposites containing a series of Al@Al2O3 nanofillers with different shell thicknesses. It demonstrates that forming an insulating shell enables independent control of intra-particle polarization and inter-particle polarization, leading to high dielectric constant and low dielectric loss. This core-shell structured nanocomposites not only surpass unmodified nanofiller composites in terms of dielectric properties, but also improve thermal conductivity and field resistivity, resulting in stable operation at low temperatures.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Kevin Haeuser, Zhiren Zhou, Prannoy Agrawal, Rolf Jakoby, Holger Maune, Joachim R. Binder
Summary: A finite element method (FEM)-based simulation approach was developed and tested to predict the tunability in composite materials, which showed good prediction capabilities. The simulation model was used to predict the tunability of a network-structured composite, demonstrating a high tunability exceeding other evaluated models. Experimental verification was conducted using structured samples, showing higher tunability and dielectric loss compared to unstructured samples. These structured samples have potential for use in tunable radio frequency applications with high performance and low energy loss.
Review
Chemistry, Multidisciplinary
Ye Run-Ping, Wang Xinyao, Cameron-Alexander Hurd Price, Liu Xiaoyan, Yang Qihua, Mietek Jaroniec, Liu Jian
Summary: This work discusses the preparation and properties of special catalyst YCSNs in heterogeneous hydrogenation reactions, as well as the challenges in their application in gas and liquid-phase hydrogenation reactions, and explores the opportunities and prospects for future research.
Article
Materials Science, Characterization & Testing
Qiao Li, Guangyi Lin, Su Zhang, Haitong Wang, Jyotishmoy Borah, Yuan Jing, Fumin Liu
Summary: Stretchable conductive elastomers have gained significant interest in modern electronic devices. This study demonstrates the improvement of dispersion and interfacial interaction of carbon nanotubes (CNTs) with the rubber matrix through dopamine modification. The incorporation of SiO2@Ag core-shell particles further enhances the conductive network in the elastomer, resulting in higher electrical conductivity and improved mechanical properties. This work provides a new idea for the fabrication of high-performance stretchable conductive elastomer composites.
Article
Materials Science, Composites
Liang Gao, Jiaqi Zhang, Zijun Chen, Xuan Wang
Summary: Designing a core-shell structure for ceramic filler is an effective way to improve the insulation property of polymer matrix, but it suffers from a low dielectric constant that limits the energy storage density. In this study, a strategy for regulating shell thickness is proposed to induce dielectric polarization, resulting in improved dielectric constant and breakdown strength of PVDF-based nanocomposite incorporated by core-shell structured BT@SO nanoparticles. Compared to pure PVDF, the dielectric constant and breakdown strength of PVDF/BT@SO are increased by 82.2% and 61.3%, respectively, leading to a significantly enhanced discharge energy density of 352%, up to 12.2 J/cm(3). The study provides valuable insights into the interface control mechanism of core-shell nanostructure and offers a theoretical basis for designing polymer nanocomposites with high energy storage density.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Physical
Bo Wu, Xin Mao, Yi Xu, Rong Li, Nan Wu, Xianzhong Tang
Summary: Core-shell structured SiO2 particles with different shell thicknesses were prepared by coating EPDM onto their surface, showing high thermal conductivity, low dielectric loss, and low dielectric constant in copper clad laminates for potential use in high-frequency printed circuit boards.
APPLIED SURFACE SCIENCE
(2021)
Article
Polymer Science
You Yuan, Jingyu Lin, Xinhua Wang, Jun Qian, Peiyuan Zuo, Qixin Zhuang
Summary: This study introduces a core-double-shell-structured iron(II,III) oxide@barium titanate@silicon dioxide/polyetherimide (Fe3O4@BaTiO3@SiO2/PEI) nanocomposite, which possesses high-temperature durability, high energy storage density, and efficient charge-discharge performance. The nanocomposite achieves a dielectric constant of 10.6, a dielectric loss of 0.017, a high energy density of 5.82 J cm(-3), and a charge-discharge efficiency (& eta;) of 72% with a filler content of 9 wt%. This research provides new insights and experimental evidence for the design and development of high-performance dielectric materials, having significant implications for electronic devices and energy storage.
Article
Energy & Fuels
Liying Wang, Hong Lin, Chunxiao Wang, Kai Yu, Chunmei Wang, Jinghua Lv, Baibin Zhou
Summary: A core-shell structured tungstocuprate@silver homo-benzotrizoate complex was synthesized for the first time, showing efficient bifunctional performance in supercapacitors and electrocatalytic oxygen evolution reaction. Its unique structure facilitates interfacial electron transport and exhibits high specific capacitance, good durability, and catalytic activity.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Bastian Haehnle, Philipp A. Schuster, Lisa Chen, Alexander J. C. Kuehne
Summary: A synthetic toolbox has been developed to create monodisperse core-shell and core-shell-shell particles composed entirely of different types of conjugated polymers. Seeded and fed-batch dispersion polymerizations based on Suzuki-Miyaura-type cross-coupling allow precise control over the interface between conjugated polymer phases, facilitating control over energy transfer phenomena. This new approach offers synthetic freedom for fine-tuning the optical properties of CPP, potentially enabling the synthesis of individual white light-emitting particles.
Article
Chemistry, Physical
Hanggara Sudrajat, Mitsunori Kitta, Ryota Ito, Tomoko Yoshida, Ryuzi Katoh, Bunsho Ohtani, Nobuyuki Ichikuni, Hiroshi Onishi
Summary: NaTaO3, a semiconductor with a perovskite structure, is a highly active photocatalyst for overall water splitting when doped appropriately with La cations. The La-rich layer in the surface characteristic of La-doped NaTaO3 plays an important role in electron-hole recombination, electron mobility, and water splitting activity. This study reveals the relationship between the nanoarchitecture and photoactivity of core-shell-structured La-doped NaTaO3, allowing for tuning of surface features to enhance water splitting activity.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Renhou Han, Yue Liu, Yepei Mo, Huichen Xu, Zhengwen Yang, Rongrong Bao, Caofeng Pan
Summary: This study proposes a high anti-jamming capacitive flexible pressure sensor with a PVDF@AgNWs@TiO2 film as the dielectric layer. The sensor demonstrates high sensitivity and convenient preparation. The introduction of a core-shell structure in the PVDF film enhances the initial capacitance and balances the dielectric properties of the sensor.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Applied
Borui Li, Wenjuan Gu, Imane Bourouis, Mengya Sun, Yating Huang, Cunshe Chen, Xinqi Liu, Zhihua Pang
Summary: This study investigated the relationship between particle characteristics and lubrication properties of biopolymer particles using whey protein isolate (WPI) and xanthan gum (XG) at different temperatures. The composite particles exhibited a core-shell structure, with WPI/XG-75 showing a more complete XG coating compared to WPI/XG-95. The particle size of WPI/XG-75 was similar to WPI-75, while WPI/XG-95 had a larger particle size. The composite particles had higher surface hydrophobicity than WPI-75, with WPI/XG-75 being the highest. Tribology results showed that the friction coefficient of WPI/XG composite particles was initially higher than WPI-75, but became similar to or lower than WPI-75 at higher sliding speeds. Different lubricating behaviors were observed for particles with or without XG in the presence of artificial saliva. WPI/XG-95 also exhibited excellent fat replacing function in the emulsion. Overall, particles with a core-shell structure are promising for fat replacement, but improvements are needed in terms of particle size and clustering.
FOOD HYDROCOLLOIDS
(2022)
Article
Materials Science, Ceramics
Dajun Hou, Jing Zhou, Wen Chen, Pengchao Zhang, Jie Shen, Zelang Jian
Summary: High dielectric constant polymer dielectrics have garnered attention in flexible electronics. However, the increase in dielectric constant often leads to an increase in dielectric loss, posing a paradox. This study reports the use of core@double shell structured filler/PVDF composites to overcome this paradox. The composites, consisting of BaTiO3 as the core, conductive carbon as the inner shell, and insulating polydopamine as the outer shell, exhibit outstanding dielectric performance, with a dielectric constant of 45 and a dielectric loss of 0.053 at 10(3) Hz. This improvement can be attributed to the enhanced interfacial polarization induced by the inner carbon shell and the blockade of conductive paths caused by the outer PDA shell. These findings highlight the potential of rational design of core@double shell structured hybrid fillers for optimizing the overall dielectric performance of PVDF-based composites.
CERAMICS INTERNATIONAL
(2022)
Article
Polymer Science
Fatima Ezzahra Bouharras, Massimiliano Labardi, Elpidio Tombari, Simone Capaccioli, Mustapha Raihane, Bruno Ameduri
Summary: The dielectric properties of PVDF-g-BT core-shell structured nanocomposites obtained by RAFT polymerization were investigated. The dielectric constant increased with the addition of BT, exhibiting a larger increase than predicted by usual modeling methods for composite materials, due to the effect of the interfacial core-shell structure. PVDF's known dielectric relaxations were observed in both the neat polymer and its nanocomposites, unaffected by the presence of nanoparticles. A relaxation process due to interfacial polarization was found at higher temperatures, attributed to the high crystallinity of the materials produced by RAFT.
Article
Nanoscience & Nanotechnology
Xin Qi, Chaolun Pan, Liqun Zhang, Dongmei Yue
Summary: In this study, multifunctional shape memory polymers (SMPs) are synthesized using sustainable Eucommia ulmoides gum as a raw material. These SMPs exhibit thermal-triggered one-way shape memory performance and two-way shape memory properties. They also possess good self-healing properties, shape reconfigurability, and chemical recyclability due to the dynamic nature of the boronic ester bond. Furthermore, by incorporating multiwalled carbon nanotubes, the composite shows responsiveness to near-infrared light and has potential applications in various fields.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Jun Wang, Xiang Lin, Runguo Wang, Yonglai Lu, Liqun Zhang
Summary: This study presents the design and synthesis of novel thermoplastic polyurethanes with self-healing properties and photothermal effects to improve the mechanical properties of 3D printed objects. The mechanical anisotropy of the printed products can be controlled by regulating the self-healing conditions, and support-free printing and healing of damaged prints are achieved. Additionally, the materials exhibit shape-memory properties and show potential for 4D printing applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Ziyi Zhang, Yue Fang, Qionghai Chen, Pengwei Duan, Xiaohui Wu, Liqun Zhang, Wenjie Wu, Jun Liu
Summary: Carbon black significantly improves the mechanical properties of elastomers and its reinforcing effect depends on the structure of the carbon black particles. This study used molecular dynamics simulation to investigate the relationship between the morphology of carbon black particles and the mechanical properties of elastomer nanocomposites. The results showed that the surface roughness and shape of carbon black have a significant impact on the mechanical properties of the filled rubber models.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Review
Polymer Science
Wufan Zhao, Jing He, Peng Yu, Xueliang Jiang, Liqun Zhang
Summary: Elastomers, especially diene-rubbers, can be damaged by thermal/oxygen aging, resulting in reduced elasticity and premature failure. Antioxidants are essential to slow down the aging process and extend the service life of rubber composites. This review provides an overview of recent progress in rubber antioxidants, including their oxidation process, strategies for improving antioxidative efficiency, minimizing blooming and migration, and addressing toxicity issues. Despite extensive research, there are still unresolved scientific and technological issues, and the future trends of rubber antioxidants are discussed.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Polymer Science
Xiaobo Zhai, Xin Chen, Fangyuan Zheng, Dongli Han, Junchi Zheng, Xin Ye, Xiaolin Li, Liqun Zhang
Summary: In this study, a series of low volatile organic compound (VOC) M-x-Si69 coupling agents were used to modify silica/NR nanocomposites and prepare engineering tires with lower rolling resistance and better wet slip resistance in a more environmentally friendly way. The results showed that M-1-Si69 was the best choice to achieve comprehensive optimization of the mechanical properties of the nanocomposites. Compared with Si69, M-1-Si69 coupling agent significantly reduced energy loss and improved the safety performance of engineering tires.
Article
Polymer Science
Han-Bin Wang, Hong-Chi Tian, Shi-Jia Zhang, Bing Yu, Nan-Ying Ning, Ming Tian, Li-Qun Zhang
Summary: This study designs a dual reactive compatibilizer for improving the compatibility of MVQ/PP blends. The experimental results show that the compatibilizer can significantly increase the interface thickness, decrease the average size of MVQ dispersed phase, and improve the mechanical properties of the blend.
CHINESE JOURNAL OF POLYMER SCIENCE
(2023)
Article
Materials Science, Composites
Rui Zhang, Jiaye Li, Zongchao Xu, Stephen Jerrams, Shui Hu, Li Liu, Shipeng Wen, Liqun Zhang
Summary: Rapid developments in international transportation lead to increased energy and resource consumption. Minimizing rolling resistance of tires is a pressing challenge, which requires improving the interaction and dispersion of fillers. In this study, a modified graphene oxide/natural rubber composite was created by introducing a modified graphene oxide masterbatch into solution-polymerized styrene butadiene rubber. The composite exhibited superior rolling resistance, reduced energy loss, improved wear performance, and wet skid resistance, indicating a strong interface and balanced tire properties.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Chemical
Qifei Wu, Ling Liu, Junquan Meng, Shilin Liu, Jiong Hui, Xue Wang, Lin Xu, Liqun Zhang
Summary: A new strategy is proposed to improve the distribution of silica in rubber blend without using a silane coupling agent. Silica-filled epoxidized SSBR/ENR nanocomposites have better interfacial interaction and improved dispersion of silica compared to silica-filled SSBR/NR nanocomposites with Si75 as the coupling agent. The epoxy groups effectively adjust the phase selective distribution of silica. The S-ESSBR12/ENR18 nanocomposite shows the best performance, increasing wet-skid resistance by 118%, reinforcing index by 38%, abrasion resistance by 40%, and decreasing rolling resistance by 23%. These ecofriendly nanocomposites have potential application in green tire tread production.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Hao Tian, Yangyang Gao, Liqun Zhang, Haoxiang Li, Yewei Chen, Sian Xiao, Xiuying Zhao
Summary: The study focuses on predicting the viscosity of polymer nano-composites using machine learning algorithms. Non-equilibrium molecular dynamics simulation and machine learning models were used to investigate the impact of nanoparticle loading, shear rates, and temperatures on viscosity. The extreme gradient boosting model showed the highest accuracy in predicting viscosity and was used to evaluate the importance of process parameters.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Chemistry, Physical
Mingyuan Chao, Pengju Di, Yue Yuan, Yajin Xu, Liqun Zhang, Pengbo Wan
Summary: This work successfully develops a flexible breathable electronic sensor with excellent sensing ability, good breathability, and reliable photothermal properties. By delicately assembling conductive MXene nanosheets and silver nanowires on electrospun elastomeric substrates, the sensor achieves ultrasensitive sensing of human physiological signals and wearable human-machine interaction, as well as integrated functionalities of disease diagnosis and photothermal therapy. This research provides a simple and effective method for the development of flexible breathable multifunctional electronic sensors, which can be used for long-term healthcare monitoring, ultrasensitive wearable human-machine interfacing, smart disease diagnosis, and treatment.
Article
Engineering, Biomedical
Jing-Jing Ye, Long-Fei Li, Rui-Nan Hao, Min Gong, Tong Wang, Jian Song, Qing-Han Meng, Na-Na Zhao, Fu-Jian Xu, Yuri Lvov, Li-Qun Zhang, Jia-Jia Xue
Summary: The development of a nanocomposite hydrogel with rapid release of rifampicin and excellent antibacterial ability demonstrates broad-spectrum antibacterial effects, inhibiting bacterial infection and inflammatory response, while promoting wound healing.
BIOACTIVE MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Junwei He, Qionghai Chen, Jiajun Qu, Sai Li, Zuwei Fu, Yuan Wei, Shikai Hu, Anchao Feng, Liqun Zhang, Jun Liu
Summary: In this study, a facile two-step approach was used to synthesize self-healing elastomers based on dynamic oxime-carbamate bonds. The formation of hydrogen bonds and dynamic oxime-carbamate bonds was verified through molecular dynamics simulations and experimental characterization. By increasing the hard segment content, the mechanical strength of the elastomer increased while the loss factor decreased. The self-healing behavior of the elastomer was successfully demonstrated at a certain temperature, with dynamic oxime-carbamate bonds playing a more significant role than hydrogen bonds in the mechanism.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chenglin Li, Yi Han, Qingyuan Du, Daming Wu, Jingyao Sun, Zhao Wang, Liqun Zhang
Summary: With the rapid development of electronic equipment and communication technology, the demand for polymer composites with high thermal conductivity and mechanical properties has increased significantly. However, its nondegradable polymer matrix will inevitably bring more and more serious environmental pollution. Therefore, it is urgent to develop biodegradable thermally conductive polymer composites. In this work, biodegradable poly(butylene adipate-co-terephthalate) (PBAT) is used as the matrix material, and vacuum-assisted filtration technology is employed to prepare carbon nanotube (CNT) and cellulose nanocrystal (CNC) networks with high thermal conductivity. Then CNT-CNC/PBAT composites with high thermal conductivity and excellent mechanical properties are prepared by the ultrasonic-assisted forced infiltration method. Both experiment and simulation methods are used to systematically investigate the thermally conductive and dissipation performances of the CNT-CNC/PBAT composites. Above all, a simple alcoholysis reaction is applied to realize the separation of the PBAT matrix and functional fillers without destroying the conductive network skeleton, which makes it possible for the recycling of thermally conductive polymer composites.
Article
Polymer Science
Linru Jiang, Jingchao Li, Weizhen Zhang, Yonglai Lu, Liqun Zhang
Summary: A topological entanglement structure of molecular chains was created in silicone rubber/silica composites by introducing epoxidized silicone rubber, which significantly improved the crack propagation resistance of the composites. Adding 5 phr of 15% epoxy silicone rubber increased the tear strength and elongation at break of the silicone rubber composite by 330% and 140% respectively. This study provides a new approach for preparing silicone rubber composites with high tear resistance, expanding its application field.
EXPRESS POLYMER LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Hui Xiong, Tongkui Yue, Qi Wu, Linjun Zhang, Zhengtian Xie, Jun Liu, Liqun Zhang, Jinrong Wu
Summary: Exploring side-chain interlocking in bottlebrush polymers as a dynamic network for self-healing process, this study demonstrates that materials can achieve self-healing capability in harsh environments, and also act as damping materials to dissipate vibration energy.
MATERIALS HORIZONS
(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)
