Article
Materials Science, Ceramics
O. V. Sreejith, Murugan Ramaswamy
Summary: The study reveals that the lithium-ion diffusion kinetics in lithium titanate can be significantly improved through germanium incorporation, leading to enhanced electrochemical performance and increased discharge capacity of the battery.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
Sina Karimzadeh, Babak Safaei, Wei Huang, Tien-Chien Jen
Summary: In this study, first principle calculations were performed to investigate the properties of LiFePO4 (LFP) cathode material for Li-ion batteries and the effects of Nb doping on its crystalline structure. The results revealed that Nb doping at the Fe site significantly improved the conductivity of LFP, reduced the band gap, and enhanced the stability of the system. Geometrical analysis showed that Nb doping widened the Li passage channel, increased bond length, and reduced covalent strength, leading to a lower energy barrier for Li ion diffusion. Moreover, Nb doping had no adverse effect on the theoretical voltage of LFP. The findings also demonstrated that Nb doping decreased the energy barriers for Li migration and significantly improved the diffusion coefficient of Li-ion in LFP.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Materials Science, Ceramics
Jiatai Wang, Yuanyuan Li, Shishi Wei, Shunli Hou, Geng Zhou, Xiaocen Yan, Ruheng Xi, Xiaoyi Hou
Summary: Through doping B3+ using a high-temperature solid-phase method, the electrochemical properties of the LiNi0.815Co0.15Al0.035O2 cathode (NCA) were significantly improved. X-ray diffraction analysis and Rietveld refinement showed that B3+ enhanced lattice ordering by minimizing Li+/Ni2+ mixing. Scanning electron microscopy observations indicated that B3+ doping changed the particle morphology. The specific discharge capacities of 1.5% B-NCA were 178.31 and 123.74 mAhg 1 at 0.2 and 5C, respectively. After 100 cycles, the specific discharge capacity was 176.29 mAhg 1 at 0.2C with a capacity retention of 98.87%. Boron doping significantly improves the structural stability of nickel-rich cathode materials by suppressing the detrimental H2 & RARR;H3 phase transition, thus improving the electrochemical performance of nickel-rich ternary lithium-ion batteries.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Mansoureh Nematzadeh, Mahya Nangir, Abouzar Massoudi, Xiaobo Ji, Ali Khanlarkhani, Jozsef Toth
Summary: This study investigates the electrochemical performance of nitrogen-doped graphene/silicene composite. The results suggest that nitrogen doping can enhance the performance of silicene as an anode for lithium-ion batteries. The pyrrolic and graphitic sites in the composite play different roles in facilitating the diffusion and kinetics of Li+ ions.
Article
Chemistry, Physical
Yue Liu, Bingxue Yu, Hongli Wang, Kaiyang Zeng
Summary: Principal component analysis and correlation analysis are applied to decompose the contact resonance frequency (f(0)) signal, providing important information about surface morphology and electromechanical behavior. A customized method based on this analysis can effectively distinguish the responses from different materials.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Ruyan Zhang, Yuhua Hou, Xialei Guo, Xuan Chen, Wei Li, Xiaoma Tao, Youlin Huang
Summary: By using density functional theory calculations, the effects of B, Al and B-Al doping on silicene were studied in terms of its structural stability and electrochemical properties, and their potential as anode materials for lithium ion batteries was evaluated. The results show that the doped system has good stability and improved conductivity of silicene, as well as enhanced interaction with Li. The diffusion barriers for Li ions migration are low in all doped systems, indicating good Li ion migration rates. The open circuit voltage is relatively stable and low. Therefore, B, Al and B-Al doping can effectively regulate the structural stability and electrochemical performance of silicene.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Ruyan Zhang, Yuhua Hou, Xialei Guo, Xuan Chen, Wei Li, Xiaoma Tao, Youlin Huang
Summary: Using first-principles calculations, the effects of B, Al and B-Al doping on the structural stability and electrochemical properties of silicene were studied. The results show that doping improves the conductivity and interaction with Li, and the doped systems have good stability and lithium ion migration rates. B, Al and B-Al doped silicene exhibit excellent structural stability, electrochemical performance and lithium storage ability.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Meng Wang, Yongqiang Han, Mo Chu, Lin Chen, Meng Liu, Yijie Gu
Summary: The effects of cerium doping and the formation of layered-spinel hetero-structure on the electrochemical properties of lithium-rich cathode material were studied. Cerium doping and formation of spinel phase facilitated lithium ion diffusion and inhibited structural collapse during cycling, leading to improved cycling stability and rate capability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Shinji Kondou, Yusuke Sakashita, Xiaoxiao Yang, Kei Hashimoto, Kaoru Dokko, Masayoshi Watanabe, Kazuhide Ueno
Summary: The study found that poly(LiSTFSA) exhibited the highest ionic conductivity in the lowest polar mixture at the highest salt concentration, attributed to a unique conduction phenomenon. This provides insights into a new design strategy for nonaqueous liquid electrolytes for LIBs.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Analytical
Anran Liu, Suhua Yu, Xiaojun Lu, Songqin Liu
Summary: Through hydrothermal assembly and high-temperature carbonization, we designed a novel NiCo2O4@nitrogendoped carbon nanotube@3D graphene (NCO@CT@3DG) aerogel to overcome the issues of large volume expansion and poor electrical conductivity in redox-based electrode materials. The NCO@CT@3DG aerogel exhibited excellent electrochemical properties as an anode material for lithium-ion batteries, with high capacity, superior cycle and rate performance. The outstanding properties are attributed to the synergistic effect of each component and the unique graphene aerogel hybrid structure. This study demonstrates the great potential of 3DG aerogel hybrid structure in improving electrochemical properties of active materials with high volume expansion and poor conductivity.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Energy & Fuels
Rowena H. Brugge, Richard J. Chater, John A. Kilner, Ainara Aguadero
Summary: The current lithium ion battery technology poses safety risks, with the development of solid ceramic electrolytes offering a safer alternative for the next generation of all-solid-state batteries. However, the lithium diffusion behavior in these solid electrolytes and transport properties at the metal anode interface are not well understood. The proposed methodology aims to obtain lithium diffusion coefficients of bulk solid ceramic electrolytes and study their interfaces with electrodes for further optimization and performance enhancement in solid-state lithium batteries and hybrid systems.
JOURNAL OF PHYSICS-ENERGY
(2021)
Article
Energy & Fuels
Fuqian Yang
Summary: This work investigates the lithiation-induced swelling and deformation of three different electrode shapes under the framework of linear elasticity. The study reveals a linear relationship between lithium concentration and hydrostatic stress for all three electrode shapes. It is found that the lithium-induced swelling is proportional to the partial molal volume of lithium and the state of charge, and the swelling rate decreases over time. The constraint and geometrical shape of the electrode play crucial roles in controlling the swelling and stress evolution.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Chemistry, Physical
Chen-Hao Sun, Yu-Yuan Lin, Wei-Lin Li, Yanchao Fan, Haoyuan Liu, Yan-Hui Sun, Jun-Min Nan
Summary: This study investigates a core-shell SnS@C electrode material and finds that sulfur doping carbon shell can enhance the electrical conductivity and mechanical strength, as well as provide more active sites for lithium-ion intercalation/de-intercalation. The material shows stable cycling performance and rate performance, making it suitable for next-generation lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Multidisciplinary
Xiaofei Wang, Qi Tong
Summary: By using a concurrently-coupled and multi-physical model based on peridynamics, we have successfully simulated the delayed fracture in electrodes of lithium-ion batteries under mechanical and chemical loads, and revealed the key mechanisms during the fracture process, providing a useful tool for the design of lithium-ion batteries.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2023)
Article
Chemistry, Physical
Wei Zhong, Siwu Li, Mengchuang Liu, Ziqi Zeng, Shijie Cheng, Jia Xie
Summary: The self-sacrificing Li2C2O4 is a promising lithium replenisher with high specific capacity, residue-free and low-cost properties. However, its low electrochemical activity poses a challenge for the compatibility of electrolyte and cathode materials. In this study, a three-dimensional hierarchical spherical Mo2C/N-doped graphene co-catalyst is synthesized to enhance the reactivity of Li2C2O4 and accelerate the electron-ion transport.
Article
Materials Science, Multidisciplinary
Madeeha Riaz, Manahil Najam, Hina Imtiaz, Farooq Bashir, Tousif Hussain
Summary: This study focuses on the structural and biological analysis of Zn-Cu based biodegradable alloys for orthopedic applications. The results indicate that the alloys have good electrical conductivity and biocompatibility, with potential for promoting bone growth and healing process. Additionally, the alloys exhibit a low corrosion rate and improved corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rijo Rajeev, Sk Safikul Islam, Anitha Varghese, Gurumurthy Hegde, Suryasarathi Bose
Summary: In this study, a facile and selective electrochemical sensor was developed for the sensing of guanosine. The sensor utilized a unique porous structure and ordered framework, enabling linear detection of guanosine concentration in the range of 0.123-720 μM under specific conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rafael V. M. Freire, Dominique Celeste de A. Dias, Jose Yago Rodrigues Silva, Dayane Kelly Dias do Nascimento Santos, Larissa T. Jesus, Ricardo O. Freire, Severino A. Junior
Summary: This study reports the extraction and isolation of euphol from nature, its adsorption in nanosized ZIF-8, and the efficacy of this system against cancer cells. Experimental and simulation results show that ZIF-8 can enhance the effectiveness of euphol against cancer cells and selectively target cancer cells.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Awad, Awatif A. Hendi, Maha M. Almoneef, Maymunah Alwehaibi, Khalid M. Ortashi, Wadha Alenazi, Fatimah S. Alfaifi, Shareefa Alahmariye, Asma Alangery, Warda Ali Alghoubiri, Haia Aldosari
Summary: In this study, magnesium-doped zinc oxide nanoparticles were synthesized and characterized. The research findings show that magnesium doping can alter the crystal structure and optical properties of zinc oxide, while enhancing its dielectric constant.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
F. J. Willars-Rodriguez, I. R. Chaverz-Urbiola, M. A. Hernandez-Landaverde, A. Zavala-Franco, E. A. Chavez-Urbiola, P. Vorobiev, Yu V. Vorobiev
Summary: This study focuses on manganese doped CdS thin films synthesized by chemical bath deposition. The incorporation of Mn2+ cations in CdS was found to influence the crystalline structure, morphology, and optoelectronic properties. Doped thin films exhibited a uniform hexagonal structure, changed growth orientation, and showed scale-like and needle-like morphologies. The bandgap and rectification speed of Schottky diodes were modified by introducing manganese. This study suggests the potential for affordable high-speed optoelectronic devices.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Mehdi Javidi, Hooman Karimi Abadeh, Fatemeh Namazi, Hamid Reza Yazdanpanah, Narjes Shirvani Shiri
Summary: This study investigated the synergistic effect of temperature, solution velocity, and sulphuric acid concentration on the corrosion behavior of carbon steel using response surface methodology. The results showed that temperature affected anodic reactions, solution velocity influenced cathodic reactions, and acid concentration altered the corrosion mechanisms by changing the properties of the surface layer.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
R. Sakthivel, Thirumoorthy Kulandaivel, Kirankumar Venkatesan Savunthari, K. Mohanraj, Hans-Uwe Dahms, Aswin kumar Anbalagan, Manjunath Rangasamy, Kien-Voon Kong
Summary: In this study, saturated fatty acids were incorporated with silane to modify viscose fabric, resulting in superhydrophobic and superoleophilic properties. The modified fabric showed excellent separation efficiency for oil and organic solvents, with high absorption capacity. The modified fabric also exhibited durability and retained its properties in harsh conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Wei Zhang, Hong Lei, Wenqing Liu, Zefang Zhang, Yi Chen, Xiaogang Hu, Xiangshan Ye
Summary: In this study, EDTA-grafted alumina composite abrasives were produced by a two-step process for the CMP of sapphire substrates. Experimental results showed that the modified abrasives exhibited better dispersion properties and significantly improved polishing efficiency, with higher material removal rates and lower surface roughness. The combination of chemical reaction and mechanical action enhanced the CMP performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Shumaila Rafaqat, Bushra Perveen, Warda Raqba, Warda Imran, Arshad Hussain, Naeem Ali
Summary: This study developed a MnP-based biosensor for quantitative measurement of dye concentrations using electrochemical signals. The effects of two different dyes on MnP activity were investigated, with one dye showing inhibitory effects and the other dye having no effect. The study demonstrates the potential application of enzyme-based biosensors in dye detection and toxicological monitoring.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jinyan Shi, Oguzhan Yavuz Bayraktar, Baris Bayrak, Burak Bodur, Ali Oz, Gokhan Kaplan, Abdulkadir Cuneyt Aydin
Summary: The elemental composition of precursors is crucial for the performance development of geopolymers. The use of lime instead of metakaolin increases the fluidity and mechanical properties of geopolymers, while the addition of gypsum decreases them. Furthermore, higher lime content exacerbates the negative effect of gypsum.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aayush Gupta, Kaveri Ajravat, Loveleen K. Brar, O. P. Pandey, Pandey Rajagopalan
Summary: This study focuses on the performance of Mn3O4-ZnO composite material in wastewater treatment and energy storage applications, and presents a detailed comparative analysis. Results show that the composite material with equal concentrations of Mn3O4 and ZnO exhibits excellent photocatalytic activity and high capacitance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
V. Murugabalaji, Matruprasad Rout, Harsh Soni, Biranchi Narayan Sahoo
Summary: This study focuses on the corrosion characteristics of AA 7075 and AA 7075 based hybrid composite fabricated using stir casting and hot rolling techniques. The results show that the hybrid composite produced by hot cross rolling exhibits better corrosion resistance compared to the base metal. The addition of a small amount of graphite improves the bonding between the matrix and reinforcements, and the hot cross rolling enhances this bonding, leading to the formation of a strong passivation oxide layer and increased charge transfer resistance, thereby improving corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Fangkun Ning, Qinghao Shi, Shuping Kong, Weitao Jia, Lifeng Ma
Summary: The paper investigates a new method of rolling sheets with variable chamfering amounts in both the transversal and normal directions. The feasibility of the technological process was tested through simulation and compared with experimental results. Three important process parameters, temperature, stress, and flow velocity, were used to evaluate the effects on chamfering amount before determining the optimal angle. The spread formula for evaluating the shape quality of the plate after ECR was obtained through testing and theory.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aqeel Abbas, M. A. Hussein, Mohamed Javid
Summary: In this study, the AM60 magnesium alloy was processed using high-energy ball milling, and the results showed that different reinforcement agents had certain effects on particle size, crystallite size, lattice strain, and dislocation density.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
D. S. Mahmoud, E. M. Eldesouki, W. M. Abd El-Gawad
Summary: The development of flexible and lightweight microwave-absorbing materials has become a trendy topic. This study focuses on enhancing the microwave-absorbing performance of butadiene-acrylonitrile rubber (NBR) by incorporating novel reinforcing nanofillers. The results show that the NBR nanocomposite with a loading of 16 parts per hundred rubber (phr) of LiFe 20%/Si has the best microwave-absorbing performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)