Article
Chemistry, Physical
Junbin Li, Xiaoqing Chang, Tingyi Huang, Binhao Wang, Hongfei Zheng, Qing Luo, Dong-Liang Peng, Qiulong Wei
Summary: The electrochemical properties and size-effect of Li4Ti5O12 (LTO) anode for Li+ and Na+ storage were investigated. Li+ storage in LTO is diffusion-controlled in bulk and shows increased surface-controlled contributions when the size is reduced to 18 nm. In comparison, for Na+ storage, the domination step is surface-controlled in all sizes of LTO, with over 55% contribution even at low sweep rate of 0.1 mV s(-1).
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Qihan Meng, Fei Chen, Qingfei Hao, Na Li, Xudong Sun
Summary: The Nb-doped Li4Ti5O12-TiO2 (Nb-LTO-TO) hierarchical microspheres exhibited improved capacity and stability at low temperatures, providing a new approach for designing advanced anodes for high-performance Li-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
O. V. Sreejith, M. S. Indu, George V. Alexander, Ramaswamy Murugan
Summary: The presence of germanium in lithium titanate (LTO) was found to effectively reduce cell impedance, improve Li+ ion diffusion, and enhance capacity. The optimal doped composition (Li4Ge0.1Ti4.9O12) demonstrated good cycling stability and high capacity at different rates.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Green & Sustainable Science & Technology
Fathima Ali Kayakool, Binitha Gangaja, Shantikumar Nair, Dhamodaran Santhanagopalan
Summary: The recycling and regeneration of graphite from spent Li-ion batteries can be utilized for the fabrication of Li-ion based all-carbon dual-ion batteries, achieving promising electrochemical performance.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2021)
Article
Chemistry, Physical
Kai Chen, Yunfeng Guan, Lidan Tan, Hui Zhu, Qin Zhang, Jianguang Guo, Zhijun Dong, Guanming Yuan, Xuanke Li, Ye Cong
Summary: The in situ derivation of TiO2 from Ti2CTx and Ti3C2Tx MXenes is a promising strategy to construct TiO2-based heterostructures. The precise control of MXene conversion depth and the maintenance of its lamellar structure are of top priority.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Meisam Kahrizi, Ali Ghaffarinejad, Reza Daneshtalab
Summary: In this study, F-doped Li4Ti5O12 was successfully synthesized and used as an anode material for lithium-ion batteries. Various characterization techniques showed that Li4Ti5O11.7F0.3 exhibited the highest capacity and cycling stability among the modified samples.
Article
Nanoscience & Nanotechnology
Junxin Chen, Zhe Huang, Weihao Zeng, Jingjing Ma, Fei Cao, Tingting Wang, Weixi Tian, Shichun Mu
Summary: Surface modification and Co doping can effectively suppress Li/Ni mixing and improve the electrochemical performance of cathode materials.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Electrochemistry
Yao Liu, Wei Li, Yongyao Xia
Summary: While carbon, oxide, and silicon-based materials have limitations in current LIB applications, polyanionic compounds have gained attention for their ability to stabilize structures, adjust redox couples, and provide migration channels for guest ions, leading to electrode materials with long-term cycling, high energy density, and outstanding rate capability.
ELECTROCHEMICAL ENERGY REVIEWS
(2021)
Article
Chemistry, Physical
Jiayu Zhang, Siwei Wang, Guobao Xu
Summary: A 0D/2D heterostructure with excellent electrochemical performance was successfully synthesized to significantly improve the drawbacks of Spinel Li4Ti5O12 and demonstrate promising application prospects in high-power energy storage fields.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Electrochemistry
Christina Toigo, Martin Frankenberger, Nicolas Billot, Claudia Pscherer, Benedikt Stumper, Fabian Distelrath, Jonathan Schubert, Karl-Heinz Pettinger, Catia Arbizzani
Summary: Treating a copper current collector through electrolytic deposition of copper dendrites can enhance the contact between electrode materials and the collector, especially improving performance for submicron-sized active materials. Dendritic copper foil provides an 8-fold larger surface area than untreated foil, leading to significant improvements in the electrochemical interface area.
ELECTROCHIMICA ACTA
(2021)
Article
Nanoscience & Nanotechnology
Yin Hu, Yongyuan Ren, Rongwei Shi, Jiangtao Yu, Zhe Sun, Siyu Guo, Jiangna Guo, Feng Yan
Summary: This study fabricates multifunctional nanofiber membranes with superior mechanical properties, high thermal stability, and excellent electrolyte wettability. The use of these membranes as separators in Li-metal cells and Li-sulfur batteries demonstrate high cycling stability and potential for flexible aqueous lithium-ion batteries with steady electrochemistry performance. This work opens up a potential route for designing multifunctional universal separators for rechargeable batteries.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Shiwen Li, Guohui Zhang, Chao Wang, Caixia Meng, Xianjin Li, Yanxiao Ning, Qiang Fu
Summary: The coupling of model batteries and surface-sensitive techniques provides a platform for studying crucial surface/interface processes in battery systems. Here, a sandwich-format nanopore-array model battery with an ultrathin graphite electrode and an anodized aluminum oxide film was reported. This model battery allows repetitive charge-discharge processes and in-situ characterizations of ion intercalation in the graphite electrode.
Article
Electrochemistry
Kangdong Tian, Xiaobin Hui, Haoyu Wang, Zhiwei Zhang, Luyuan Zhang, Chengxiang Wang, Longwei Yin
Summary: In this study, monodispersed LTO nanoparticles were successfully prepared on Ti3C2Tx MXene in situ through a natural oxidation and hydrothermal lithiation process, showing oriented growth and advantages for high-rate performance.
ELECTROCHIMICA ACTA
(2022)
Article
Computer Science, Information Systems
Shahenda M. Abdelhafiz, Mohammed E. Fouda, Ahmed G. Radwan
Summary: Lithium-ion batteries play a crucial role in many applications, and therefore, modeling their behavior is necessary in various fields. This paper proposes seven dynamic models to simulate the discharging behavior of lithium-ion batteries, and their efficacy in fitting different time-domain responses is tested through parameter identification. The results show that these models have an average absolute normalized error as low as 0.0057.
Article
Acoustics
Sunghyun Jie, Joonhee Kang, Seunghun Baek, Byeongyong Lee
Summary: This study investigates the influence of ultrasound on lithium-ion batteries (LIBs) and finds that ultrasound can improve charge transfer, enhance cycling stability and charging rate, and facilitate the formation of inorganic-rich solid electrolyte interphase (SEI) layer. This novel combination of ultrasound and LIBs presents a promising pathway for achieving high-performance batteries.
ULTRASONICS SONOCHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Kazuma Ito, Hideaki Sawada, Shingo Tanaka, Shigenobu Ogata, Masanori Kohyama
Summary: In this study, the high segregation energies of P and S in steel causing grain boundary embrittlement were investigated using ab initio local energy analysis and COHP analysis. It was found that the local energy changes of Fe atoms adjacent to a solute atom is the main cause of GB segregation of P and S, with unique functional forms for each solute species. The distance dependency of Fe-atom local energy change is influenced by solute-Fe bonding interactions, which is governed by the valence atomic-orbital characters of each solute species.
MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Kohei Tada, Mitsunori Kitta, Shingo Tanaka
Summary: Li4Ti5O12 is an anode material for Li-ion batteries, and Na3LiTi5O12 is a candidate anode material for Na-ion batteries. The difference between these two materials is detected through electron energy loss spectra (EELS). Density functional theory calculations show that the interaction between the cations in the 8a sites and the Ti-O spinel framework affects the properties of the titanates.
COMPUTATIONAL MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Mitsunori Kitta, Riki Kataoka, Toshikatsu Kojima, Kohei Tada, Shingo Tanaka
Summary: The study analyzed the structure of NTO and Na-NTO electrodes using X-ray diffraction and Rietveld refinement. The position of Na occupancy in the NTO spinel lattice was changed by the electrochemical Na insertion reaction, leading to a slight lattice expansion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Physics, Applied
Mitsunori Kitta, Noboru Taguchi, Hanggara Sudrajat, Hiroshi Onishi
Summary: Direct atomic-scale imaging and real-space elemental mapping revealed the dopant site in In-STO crystals, providing direct evidence of In-Ti substitution in In-STO photocatalysts.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Kohei Tada, Mitsunori Kitta, Shingo Tanaka
Summary: This study investigated the impact of alkali metal cation occupancy on the formation of O vacancies in spinel-type titanium oxide. The results suggested that substituting the cation at the 8a-site could enhance catalytic oxidation activity.
Article
Chemistry, Physical
Riki Kataoka, Toshikatsu Kojima, Mitsunori Kitta, Akihiko Machida
Summary: The reaction mechanism of a spinel-type sodium titanium oxide was investigated using in situ XRD, showing a solid-solution reaction during Na insertion/extraction process. The XRD profile evolution was found to be highly reversible, leading to high cycling stability of the NTO electrode. The movement of Na ions between 8a and 16c sites was confirmed to contribute to the changes in XRD profiles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Zhuo Xu, Shingo Tanaka, Masanori Kohyama
Summary: This study investigated the atomic configurations and energies of tilt grain boundaries in hexagonal Mg using density-functional theory. Special grain boundaries showed clear changes in energy and volume curves with rotation angles, while stable grain boundaries exhibited moderate variations in energy and charge homogeneity. These findings provide insights into interface stability and deformation mechanisms of Mg and other simple metals.
MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Riki Kataoka, Noboru Taguchi, Mitsunori Kitta, Nobuhiko Takeichi, Reina Utsumi, Hiroyuki Saitoh, Masashi Nozaki, Atsunori Kamegawa
Summary: The origin of the face-centered cubic (FCC) structure in yttrium trihydride stabilized (or quenched) at ambient pressure was investigated. It was found that high crystallinity FCC-YH3 phase could be obtained via sintering and quenching under high pressure. Surface defects were found to play an important role in maintaining the stability of the FCC-YH3 phase at ambient pressure.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Physics, Applied
Yifan Bao, Mitsunori Kitta, Takashi Ichii, Toru Utsunomiya, Hiroyuki Sugimura
Summary: This study used frequency modulation atomic force microscopy to observe the solvation structures at the EMI-TFSI/LTO interfaces, and found continuous solvation structures at both interfaces. Additionally, a kink in the solvation structure was observed at the interface containing Mg-salt.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2022)
Article
Physics, Applied
Yasushi Maeda, Mitsunori Kitta, Kentaro Kuratani
Summary: This study used conductive atomic force microscopy (c-AFM) to investigate the solid/solid interfaces in all-solid-state Li-ion batteries (LIBs) and successfully detected oxidation currents at the nanoscale level. By enhancing the spatial resolution, a better analysis of the electrochemical phenomena in all-solid-state LIBs was achieved.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Yoyo Hinuma, Masanori Kohyama, Shingo Tanaka
Summary: This study proposes algorithms for constructing tilt grain boundary models without relying on the coincidence site lattice (CSL). By computationally searching, candidate grain boundary planes for a selected rotation axis are obtained, allowing for systematic treatment of diverse grain boundary systems. Surface-slab supercells with shared two-dimensional lattice are used for feasible computational analysis, and a procedure to obtain a GB-model supercell with alternately stacking these slabs is given. The proposed algorithms enable streamlined generation of both symmetric and asymmetric GB models.
MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING
(2022)
Article
Nanoscience & Nanotechnology
Mitsunori Kitta, Kazuki Yoshii, Kensuke Murai, Hikaru Sano
Summary: The changes in optical properties of the electrode surface film of the negative electrode in a Li-metal battery were investigated using Cu-based electrochemical surface plasmon resonance spectroscopy (EC-SPR). The results showed that the color of the surface film changed during the Li-metal deposition cycles, which was attributed to the chemical condition change.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Inorganic & Nuclear
Mitsunori Kitta, Riki Kataoka, Toshikatsu Kojima
Summary: This study characterized the electrochemical Li+-Na+ alkaline cation substitution of LNMO material using analytical transmission electron microscopy. Sodium was uniformly inserted into single particles, while lithium was completely extracted. Only nickel contributed to the redox reaction, with manganese playing no role. The elemental composition ratio analysis confirmed Na0.6Ni0.5Mn1.5O3.8 as the formula for the substituted material. Oxygen desorption and defect formation were found to be important for the Li+-Na+ substitution mechanism.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Chemistry, Physical
Kohei Tada, Mitsunori Kitta, Shingo Tanaka
Summary: Spinel-type titanate is an important material used as a stable anode for Li-ion batteries and shows superconducting properties upon Li+ doping; new spinel-type titanium oxides with Na+ or Ag+ occupying 8a sites have been discovered. Theoretical calculations based on density functional theory reveal the effects of 8a-site monocations on electronic structures and geometric stabilities, aiding in categorizing the performance of spinel-type titanates. By appropriately selecting cations, spinel titanates can be applied to various materials including battery materials, catalysts, and optical materials.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)