Article
Chemistry, Physical
Liping Tong, Zhanggui Hu, Zhen Long, Mei Tang, Xiaoqing Qiu
Summary: This study prepared LiFePO4/C@La2O3 by a simple method, and this material exhibits high lithium ion diffusivity and good cyclic stability. It shows promising applicability in improving the capacity retention of cathode materials in lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Ning Wang, Ruiqi Wang, Mengqi Jiang, Junxi Zhang
Summary: Iron-based phosphates are promising cathode materials for sodium ion batteries due to their low cost and high structural stability. By adjusting the molar ratio of PO43- to P2O74-, both single-phases and mixed-phases with good stability and reversibility can be obtained, providing new strategies for designing new sodium ion battery cathode materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Inorganic & Nuclear
Alejandro Torres, Alba Collado, Mar Gomez-Gallego, Carmen Ramirez de Arellano, Miguel A. Sierra
Summary: In this study, tetranuclear [Fe2S2] hydrogenase mimic complexes containing Pt(II), Ni(II), and Ru(II) complexes were synthesized and their electrochemical properties were investigated. The incorporation of metal complexes in the structure modulated the electronic communication between the redox-active [Fe2S2] centers. Specifically, the structure of the phosphine ligand in the Pt compounds played a crucial role in facilitating or hindering the electronic communication, while the addition of a Ru-bis(bipyridine) complex promoted the communication. These experimental and computational findings provide insights into the electronic interaction between redox-active centers in hydrogenase.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Kurinjinathan Panneerselvam, Anita R. Warrier, K. Thileep Kumar, Roselin Ranjitha Mathiarasu, Raghu Subashchandrabose, Yu-Cheng Huang, Thanigai Arul Kumaravelu, Chung-Li Dong, Asokan Kandasami, Ramana Ramya Jayapalan
Summary: By doping metal ions, the weak electrical conductivity of hydroxyapatite (HAp) can be enhanced to improve its electrochemical charge storage. HAp and Fe-doped HAp were synthesized using a wet chemical method, resulting in a reduction in crystallite size to 9.56 nm. The 0.01FH sample, with a specific capacitance of 351.3 F/g at 30 mA/g, exhibited the highest performance. X-ray photoemission spectroscopy revealed Fe oxidation states of 2+ and 3+, while X-ray absorption indicated enhanced unoccupied density of states and reduced Fe-O interatomic distance in 0.01FH. These findings suggest that surface properties, Fe-O hybridization, and modifications in local atomic structures contribute to the high electrochemical charge storage in 0.01FH.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Multidisciplinary
Tomaz Katrasnik, Joze Moskon, Klemen Zelic, Igor Mele, Francisco Ruiz-Zepeda, Miran Gaberscek
Summary: It is shown that the hysteretic behavior of phase-separating battery materials can be deeply entered with finite battery currents. This observation is related to the intraparticle phase-separated state of the active material and significantly affects the DC and AC characteristics of the battery. These findings will advance the understanding, control, diagnostics, and monitoring of batteries composed of phase-separating materials while motivating battery design and performance enhancement.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Wenli Yi, Cunsi Sun, Wantong Jiang, Yuqiang Zhai, Yanmin Gao
Summary: This paper prepared carbon-nitrogen co-doping lithium iron phosphate composite materials using a two-step hydrothermal method. Special organic small molecules were selected to induce and control the morphology of cathode materials to obtain excellent performance. The first discharge specific capacities of the three material groups at 0.2C were 149.1 mAhg(-1), 158.4 mAhg(-1), and 140 mAhg(-1), respectively.
Review
Chemistry, Multidisciplinary
Bin Huang, Lei Cheng, Xinze Li, Zaowen Zhao, Jianwen Yang, Yanwei Li, Youyong Pang, Guozhong Cao
Summary: This review summarizes the recent advances in the controlled synthesis of hydroxide precursors and the growth of particles. The physical features of precursors significantly affect the electrochemical properties and battery performance of cathode materials. Innovative technologies for precursor modifications and novel precursor synthesis are highlighted. Future perspectives on the development of hydroxide precursors are presented.
Article
Chemistry, Physical
Shiqi Guan, Zhihai Hu, Yan Dong, Qing Chang, Songdong Yuan, Jian Xiong, Guodong Jiang
Summary: By utilizing diethylene glycol as a solvent and manganese salts as doping sources, manganese doping and morphology control of olivine LiFePO(4) cathode were achieved through a simple solvothermal approach, resulting in improved lithium-ion intercalation/extraction kinetics and diffusion rate, leading to higher capacity, excellent rate capability, and satisfactory cyclability of LiFePO(4).
Article
Nanoscience & Nanotechnology
Andrii Fedorchuk, Magdalena Laskowska, Grzegorz Cempura, Adam Kruk, Anna Nowak, Mateusz Dulski, Malgorzata Kac, Oleksandr Pastukh, Piotr M. Zielinski, Jerzy Kubacki, Lukasz Laskowski
Summary: In this study, a novel nanocomposite material was synthesized by functionalizing the SBA-15 silica matrix with anchored iron phosphonate molecules and conducting thermal treatment. The obtained materials are of great interest for their unique structure and potential applications in catalysis, adsorption, and non-linear optics. Various characterization techniques were used to analyze the obtained materials.
Article
Engineering, Electrical & Electronic
Thanh-Tung Dang, Michael Spence, Suzanne K. Thomas, Matthew Carnie, Thanh-Tuan Bui
Summary: Two tetraphenylpyrrolo[3,2-b]pyrrole derivatives with electron-rich functionalization, methoxy and di(4-methoxyphenyl)aminyl groups on the central core, were reported. These compounds exhibited good solubility in common organic solvents, high thermal stability, and glass forming capacity, making them suitable for various applications. When utilized as the hole transporting layer in planar perovskite solar cells, power conversion efficiencies ranging from 12.8% to 14.5% were achieved.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Physical
Mateusz Korzec, Daiva Tavgeniene, Nizy Sara Samuel, Raminta Beresneviciute, Gintare Krucaite, Agnieszka Katarzyna Pajak, Sonia Kotowicz, Marharyta Vasylieva, Pawel Gnida, Jan Grzegorz Malecki, Saulius Grigalevicius, Ewa Schab-Balcerzak
Summary: Novel oxetane-functionalized derivatives were synthesized to investigate the impact of carbazole substituents on their thermal, photophysical and electrochemical properties. The compounds showed high thermal stability and emitted radiation with varying photoluminescence quantum yield. Additionally, they were tested as hole transporting materials in perovskite solar cells, showing potential for application in photovoltaic devices.
Article
Chemistry, Physical
Natalia E. Boboriko, Yaraslau U. Dzichenka
Summary: The study utilized fast and simple molecular dynamics simulation to investigate the interaction between gas molecules and oxide surfaces, revealing that hydrogen molecules interacted most efficiently with the (001) anatase plane. The results suggest that molecular dynamics simulation can be a useful tool in understanding gas sensing properties of oxide materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Chemistry, Analytical
Mutawara Mahmood Baig, Iftikhar Hussain Gul, Sherjeel Mahmood Baig, Faisal Shahzad
Summary: Supercapacitors, compared to conventional dielectric capacitors, offer higher energy storage capacities but lower than secondary batteries. MXenes, as a family of materials with high surface area and conductivity, significantly enhance the energy storage characteristics of supercapacitors.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Xuefeng Lu, Jupeng Qi, Junqiang Ren, Junchen Li, Hongtao Xue, Fuling Tang, Xin Guo
Summary: This paper investigates the electrochemical performance of MXene materials Zr2N and Zr2NS2 as anode materials for lithium and sodium ion batteries. The results show that Zr2N and Zr2NS2 have large specific surface area, good electrical conductivity, excellent mechanical properties, and can chemisorb lithium and sodium ions on their surfaces.
Article
Electrochemistry
Hohan Bae, Bhupendra Singh, Lakshya Mathur, Jong Hoon Joo, Sun-Ju Song
Summary: This work systematically investigates the oxygen nonstoichiometry, defect structure, and mass/charge transport properties of Ba0.95La0.05FeO3-delta (BLF). Various measurements were performed to determine the change in oxygen nonstoichiometry with oxygen partial pressure, and the properties of the material were characterized, including conductivity and chemical diffusivity. The study provides insights into the behavior of BLF under different conditions, contributing to the understanding of its potential applications.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
