Article
Electrochemistry
Zhaoshun Wang, Yong Wang, Dechao Meng, Qinfeng Zheng, Yixiao Zhang, Feipeng Cai, Di Zhu, Jiabing Liu, Yushi He, Liwei Chen, Zi-Feng Ma, Linsen Li
Summary: The O2-type layered oxide cathode materials have gained significant research attention due to their high specific capacity and unique lattice structure. In this study, we investigated the structural, chemical, and morphological changes during ion-exchange processes for the preparation of these materials using LiBr/hexanol solution and LiNO3/LiCl molten salts. The solution method was found to be preferable for preparing high-capacity O2-type cathode materials, despite slower structural reorganization compared to the molten-salt method. It was discovered that the as-made O2-type cathode materials were actually Li-deficient at their pristine states but could accept more Li ions during the first charge/discharge cycle.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Emily Siska, Dean Smith, Ashkan Salamat, Keith V. Lawler, Barbara Lavina, Frederic Poineau, Paul M. Forster
Summary: The synthesis and phase stability of TcN, Tc2N, and a substoichiometric TcNx were demonstrated under high pressure and temperature conditions, with a previously unpredicted structure identified for TcN through crystal structure prediction.
CHEMICAL COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Jyothis Arumughan, Magesh Kannan Vijayakrishnan, Karthikeyan Palaniswamy, Tanvir Alam, Thanarajan Kumaresan, Senthil Kumar Palaniswamy Angappamudaliar, Senthilarasu Sundaram
Summary: By dispersing multi-walled carbon nanotubes and graphene nanoplatelets in alkaline vanadium electrolyte, the electrochemical performance of vanadium redox flow batteries can be enhanced.
Article
Materials Science, Multidisciplinary
Kanagarajan Kiruthika, Velayutham Renuga, Vembu Suryanarayanan
Summary: In this study, sodium manganese oxide (NMO), an alkali metal cation doped transition metal oxide, was synthesized using a simple solid state calcination method. The NMO's structure, functional group, morphology, and elemental composition were characterized using various techniques. Electrochemical performance analysis showed that NMO had a specific capacitance of 151 F/g at a current density of 1 A/g. To improve the specific capacitance, carbon nanotubes (CNT) were added to NMO, and the electrochemical studies of NMO/SWCNT and NMO/MWCNT were compared. The results demonstrated that NMO/MWCNT exhibited a high specific capacitance of 415 F/g, along with good rate performance, excellent electrochemical stability, and high coulombic efficiency.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Chemistry, Applied
Chenxiang Lin, Jian Yang, Senzhi Li, Lei Gong, Ying Gao, Yuxiang Chen, Ping Che, Dongdong Qi, Jianfeng Li, Yongzhong Bian
Summary: The study successfully synthesized phthalocyanines with peripherally appended rhenium(I) complex units and investigated their photophysical and electrochemical properties through a series of experiments, highlighting the effects of unsymmetrical phenanthroline fusing and rhenium(I) chelating on their properties.
Article
Physics, Applied
I. I. Aliyev, S. Sh. Ismailova, R. M. Rzayev, A. N. Mamedov, Kh. M. Gashimov, N. K. Karimova
Summary: Alloys of the As2Se3-CuCr2Te4 system were synthesized and their physico-chemical properties were investigated. The phase diagram of the system was found to be quasi-binary of the eutectic type, with small single-phase fields and solid solution areas based on the original components.
MODERN PHYSICS LETTERS B
(2022)
Article
Chemistry, Physical
D. Pukazhselvan, K. S. Sandhya, Narendar Nasani, Duncan Paul Fagg
Summary: This study shows that the dehydrogenation activation energy of MgH2 can be lowered by incorporating ceria, but the ceria undergoes phase transformations during dehydrogenation. It also suggests that reduced cerium oxide phases may be mistaken as cerium hydrides, therefore the belief in CeH2 as an active catalyst in the MgH2/CeO2 hydrogen storage system needs further scrutiny.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Chen Liu, Jianqiang Bi, Lulin Xie, Xicheng Gao, Linjie Meng
Summary: The new inorganic material known as high-entropy oxides (HEOs) is composed of several different main metal elements and has a single-phase structure. It possesses useful properties such as high specific capacity, excellent cycling performance, high structural stability, and super-electronic conductivity. It is considered as a promising electrode material for lithium-ion batteries (LIBs).
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
R. Packiaraj, P. Devendran, K. S. Venkatesh, N. Nallamuthu
Summary: NiWO4 nanoparticles were synthesized through a simple hydrothermal route and characterized using various spectroscopic techniques. The electrochemical properties were investigated using cyclic voltammetry, charge-discharge, and electrochemical impedance spectroscopy. The study provides insight into the crystallographic structures and surface morphology of the prepared NiWO4 nanoparticles.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Biochemistry & Molecular Biology
Eugenia P. Kramarova, Alexander D. Volodin, Vadim V. Negrebetsky, Anastasia D. Shagina, Teimur M. Aliev, Pavel Dorovatovskii, Roman A. Novikov, Anna V. Vologzhanina, Alexander A. Korlyukov
Summary: Hexacoordinated heteroligand silicon catecholates, which are potentially soluble compounds with high hydrolytic stability and diverse redox properties, were synthesized via transesterification and characterized by various analytical techniques. The compounds showed high hydrolytic stability and diverse redox properties, with up to three oxidation waves observed.
Article
Electrochemistry
Hayley Hirsh, Yixuan Li, Ju-Hsiang Cheng, Ryosuke Shimizu, Minghao Zhang, Enyue Zhao, Ying Shirley Meng
Summary: This study investigates the oxygen redox activity induced by transition metal ordering in the P2-type Na0.8Li0.12Ni0.22Mn0.66O2 cathode synthesized by carbonate co-precipitation. Irreversible oxygen activity is observed, correlated with Ni migration causing the loss of transition metal ordering in the structure. Ni migration has a detrimental effect on transition metal ordering and reversibility of oxygen redox at high voltage.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Sukanya Nilmoung, Wanwisa Limphirat, Santi Maensiri
Summary: This work presents the synthesis and electrochemical properties of activated carbon nanofibers (ACNF) composited with Li2FeSiO4 for supercapacitors. The prepared samples were characterized, and various techniques were used for electrochemical testing. The ACNF/Li2FeSiO4 composite exhibited excellent electrochemical properties, high capacity, and good cycle performance, making it a potential candidate for supercapacitors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Zeenat Jabeen, Asadullah Dawood, Muneerah Alomar, Salman Naeem Khan, Ihsan Ali, Muhammad Asif, Waseem Abbas, Muhammad Sultan Irshad, Mukhtar Ahmad
Summary: A series of single-phase nickel-substituted magnesium spinel ferrites were synthesized using the hydrothermal technique, and their morphology, structure, magnetism, and electrochemical properties were investigated. Experimental characterization techniques confirmed the presence of a single-phase spinel structure, with a decrease in lattice parameter and clustering of nanoparticles as nickel concentration increased. Raman and FTIR spectra indicated changes in wave numbers and the shortening of Fe-O bonds. Additionally, the ferrites exhibited increased saturation magnetization, decreased coercivity, decreased specific capacitance, and increased loop size. These ferrites are promising for energy storage applications.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Yury Shubin, Yury Bauman, Pavel E. Plyusnin, Ilya Mishakov, Maria S. Tarasenko, Maxim S. Mel'gunov, Vladimir O. Stoyanovskii, Aleksey A. Vedyagin
Summary: In this study, sponge-like porous Ni-Mo-W alloys were prepared as catalysts for the catalytic chemical vapor deposition of 1,2-dichloroethane. The synthesis of the alloys was performed via high-temperature reductive thermolysis of multicomponent precursors, showing synergistic effects of Mo and W on process efficiency during the decomposition of 1,2-dichloroethane. The catalytic activity of the alloys was studied in a flow-through reactor at 600 degrees C for 2 hours.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Zheng Sun, Wenxu Liu, Qiuyang Li, Zhi Tao, Yemei Han
Summary: Introducing Bi(Zn2/3Nb1/3)O-3 successfully improved the dielectric performance of (1-x) BZT20-xBZN composite ceramics, with sample 0.94BZT20-0.06BZN exhibiting enhanced dielectric constants and a higher degree of relaxor behavior (γ=1.91).
CERAMICS INTERNATIONAL
(2021)
Review
Chemistry, Physical
Ayaulym Belgibayeva, Aiym Rakhmetova, Makpal Rakhatkyzy, Meruyert Kairova, Ilyas Mukushev, Nurbolat Issatayev, Gulnur Kalimuldina, Arailym Nurpeissova, Yang-Kook Sun, Zhumabay Bakenov
Summary: Modern technologies in extreme environments, such as the sea, poles, or aerospace, require reliable batteries that perform well at temperatures below zero degrees. However, commercially available lithium-ion batteries (LIBs) tend to experience significant degradation in performance under low-temperature conditions. This review explores the challenges faced by each component of LIBs (anode, cathode, and electrolyte) in low-temperature environments and discusses potential modification methods and practical solutions to enhance their performance in such conditions. Furthermore, it highlights research gaps that deserve more attention in order to enable LIBs to operate at ultra-low temperatures.
JOURNAL OF POWER SOURCES
(2023)
Review
Chemistry, Physical
Nursaule Batyrgali, Yerkezhan Yerkinbekova, Nurbol Tolganbek, Sandugash Kalybekkyzy, Zhumabay Bakenov, Almagul Mentbayeva
Summary: Significant research efforts have been dedicated to improving the electrochemical performance of Li/S batteries by advancing the separators. Various modifications on the separator surface have been proposed to enhance the reversible capacity, Coulombic efficiency, and cycling stability of Li/S batteries. Physical modifications, such as coating with carbon, polymer, inorganic, and metal-organic framework (MOF), have been comprehensively discussed, while relatively less work on chemical modification has been reported.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Electrochemistry
Akylbek Adi, Izumi Taniguchi
Summary: In this study, porous C/Fe3O4 microspheres were successfully synthesized using spray pyrolysis with a sodium nitrate additive. Various characterization techniques revealed that NaNO3 catalyzed carbonization and enhanced the crystallization of Fe3O4. Aqueous etching effectively removed sodium compounds and produced porous microspheres with large surface areas and pore volumes. These porous C/Fe3O4 microspheres exhibited improved electrochemical properties, with a reversible capacity of 780 mAh g(-1) in the initial cycles, 520 mAh g(-1) after 30 cycles at a current density of 50 mA g(-1), and 400 mAh g(-1) after 200 cycles at a high current density of 500 mA g(-1). The presence of a wide range of pores facilitated electrolyte penetration and Li-ion diffusion, while N-doping enhanced the electronic conductivity of the carbon.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Nurbol Tolganbek, Nuray Zhalgas, Yerkebulan Kadyrov, Nurzhan Umirov, Zhumabay Bakenov, Almagul Mentbayeva
Summary: This study investigated the impact of two types of binders on the performance of lithium iron phosphate (LFP) cathode films. The results showed that the film with poly(vinylpyrrolidone) (PVP) as the binder exhibited higher stability and better electrochemical performance compared to the film with poly(vinylidene fluoride) (PVdF) as the binder.
Article
Chemistry, Physical
Assel Serikkazyyeva, Aiym Mashekova, Berik Uzakbaiuly, Zhumabay Bakenov, Aliya Mukanova
Summary: The miniaturization of lithium-ion batteries is a popular topic due to the rapid development of microelectronic devices. However, the use of Li metal as an anode faces challenges such as dendrite formation and large volumetric change. In this study, we demonstrate that adding a small amount of Sn to Li film anode can overcome these obstacles and improve the performance of the battery.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Electrochemistry
Anar Arinova, Gulnur Kalimuldina, Arailym Nurpeissova, Zhumabay Bakenov
Summary: The research on 3D batteries with large surface area and high active material mass loading is driven by the goal to increase the energy and power density of conventional 2D lithium-ion batteries. However, the challenge lies in removing the separator and coating the scaffolded areas of the electrode uniformly. In this paper, electrophoretic deposition technique was used to coat 3D NiO on the nickel foam anode with polyethylene oxide gel-polymer electrolyte, resulting in a thin and uniform polymer electrolyte. The NiO@Ni foam anode coated by PEO gel-polymer electrolyte showed excellent cycling stability and capacity, allowing for cell operation at room temperature without a commercial separator.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Ayaulym Belgibayeva, Makpal Rakhatkyzy, Aiym Rakhmetova, Gulnur Kalimuldina, Arailym Nurpeissova, Zhumabay Bakenov
Summary: Free-standing tin phosphide/phosphate carbon composite nanofiber mats with unique nanostructure were successfully synthesized by electrospinning and partially reducing the phosphate-containing precursors. The Sn:P molar ratio in the precursor solution was found to have an unusual effect on the structure and physical-electrochemical properties of the material. The prepared material exhibited excellent performance as an anode material for lithium-ion batteries, with high charge capacity, good Coulombic efficiency, and stable cyclability under various conditions.
Article
Chemistry, Multidisciplinary
Gulzat Nuroldayeva, Desmond Adair, Zhumabay Bakenov, Berik Uzakbaiuly
Summary: This paper discusses the need to improve battery energy density and safety, with a focus on nickel-rich cathode materials. It introduces in situ characterization methods and thermo-voltammetric dynamic characterization as an alternative method. The paper demonstrates the phase change of NCM and NCA at specific SOC ranges through nondestructive entropy measurement.
Review
Chemistry, Physical
Ayaulym Belgibayeva, Samal Berikbaikyzy, Yrysgul Sagynbay, Gulderaiym Turarova, Izumi Taniguchi, Zhumabay Bakenov
Summary: This review focuses on the development and applications of carbon composite nanofibers prepared by electrospinning combined with heat treatment, using polyvinylpyrrolidone (PVP) as the sole carbon source. These fibers possess unique properties, such as high surface area to volume ratio, excellent chemical resistance, superior electrical and thermal conductivity, and mechanical stability, making them attractive functional materials for various applications including energy storage and conversion, sensing, catalysis, water filtration, drug delivery, gas separation, and tissue engineering.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Nurzhan Baikalov, Islam Rakhimbek, Aishuak Konarov, Almagul Mentbayeva, Yongguang Zhang, Zhumabay Bakenov
Summary: Despite being the most theoretically efficient and cost-effective rechargeable batteries, lithium-sulfur batteries face challenges due to the low conductivity of sulfur and the polysulfide shuttle effect. This study focuses on modifying the separator of Li-S batteries with Ni nanoparticles encapsulated in nitrogen-doped graphene supported by nitrogen-doped graphitic carbon (Ni@NGC) to improve their performance. By controlling the loading of Ni, the surface area-to-metal content ratio can be adjusted to influence the reaction kinetics and cycling performance of Li-S cells.
Review
Chemistry, Multidisciplinary
Lunara Rakhymbay, Bagdaulet Shugay, Maksat Karlykan, Alibi Namazbay, Aishuak Konarov, Zhumabay Bakenov
Summary: There is a growing focus on different technologies used in energy production and storage, ranging from small-scale to large-scale applications, which are equally important. Li-ion batteries are currently the market leader in energy storage systems due to their high energy and power density. However, the scarcity of lithium resources and other metals for cathode materials in the long run is a significant concern. Recent research has looked into alternative energy storage systems, and sodium-ion batteries (SIBs) are considered the most promising next-generation alternative due to sodium's widespread availability and similar chemistry to lithium-ion batteries. The Na2Mn3O7 electrode has shown high capacity as a cathode material and is particularly attractive due to the low price of sodium and manganese. This work summarizes the recent progress in studying and enhancing the Na2Mn3O7 cathode material.
EURASIAN JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Nurbol Tolganbek, Nuray Zhalgas, Yerkebulan Kadyrov, Nurzhan Umirov, Zhumabay Bakenov, Almagul Mentbayeva
Summary: In this study, a thin and uniform LFP cathode film was prepared on a conductive carbon-coated aluminum foil by electrophoretic deposition. The impact of two types of binders, PVdF and PVP, on the film quality and electrochemical performance of LFP was investigated. The results showed that the LFP_PVP composite cathode film had a highly stable electrochemical performance compared to the LFP_PVdF counterpart.
Article
Materials Science, Multidisciplinary
Nurbolat Issatayev, Assyl Adylkhanova, Mohammed Salah, Zhumabay Bakenov, Gulnur Kalimuldina
Summary: A facile additive-free approach utilizing chemical bath deposition is proposed to fabricate flexible electrodes for lithium-ion batteries using nickel sulfide nano-architectures grown on Ni foam at ambient conditions. The designed electrodes offer faster ion and electron transfer, larger surface area, and high degree of structural integrity.
Article
Chemistry, Multidisciplinary
Nurbol Ibadulla, Ayaulym Belgibayeva, Arailym Nurpeissova, Zhumabay Bakenov, Gulnur Kalimuldina
Summary: A novel Ni3Sn2@CNF material was successfully prepared and applied as an anode for lithium-ion batteries. Compared to pure carbon nanofiber, Ni3Sn2@CNF showed higher discharge capacity and better cycling stability, attributed to its electrochemically active components and reduced charge-transfer resistance through alloy encapsulation.
Article
Chemistry, Multidisciplinary
Nurbol Tolganbek, Madina Sarsembina, Arailym Nurpeissova, Kiyoshi Kanamura, Zhumabay Bakenov, Almagul Mentbayeva
Summary: In this study, the issues of interfacial impedance and reactivity of Li metal with promising solid electrolytes were resolved by applying an artificial protective interlayer. The introduction of the protective layer effectively decreased the interfacial impedance and improved the electrochemical performance of both symmetric cells and all-solid-state Li metal batteries.
NANOSCALE ADVANCES
(2022)
Article
Materials Science, Multidisciplinary
A. Aly, M. Ghali, A. Osman, M. K. El Nimr
Summary: This study reports the discovery of naturally occurring luminescent graphene quantum dots (GQDs) in coconut water for the first time. The GQDs were identified through various measurements and were found to have dual sizes and emit different wavelengths of light. The GQDs were also utilized as an efficient optical sensor for aniline liquid detection.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Zehua Chen, Wencheng Ma, Qinglu Fan, Yanhua Liu, Min Sun, Shuo Wang
Summary: The nanoscale e-VOPO4 materials were successfully prepared by hydrothermal synthesis and calcination, showing high purity and suitable particle size. It exhibited satisfactory electrochemical performance as cathode material for sodium ion batteries, making it a potential candidate for high energy storage systems.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Tao Liu, Yahui Liu, Le Ling, Zhongxi Sheng, Zao Yi, Zigang Zhou, Yongjia Yang, Bin Tang, Qingdong Zeng, Tangyou Sun
Summary: In this paper, a terahertz (THz) micronano device that can switch between bimodal absorption and plasmon-induced transparency (PIT) is proposed. The device consists of layers of graphene, silica, and vanadium dioxide, and has a simple structure, easy tuning, and wide-angle absorption. The device achieves perfect absorption at specific frequencies and is highly sensitive to environmental refractive index. It also has the functions of a three-frequency asynchronous optical switch and slow light effect.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Xiaobo Luo, Songhan Hu, Qiudong Duan, Dacheng Zhou, Jialin Chen, Yugeng Wen, Jianbei Qiu
Summary: The exploration of solar light absorption by a material is important in photonics and optoelectronics. This study reveals the potential of Ba3-xGa2O6:xBi3+ as a promising candidate for various photonic and optoelectronic applications, and demonstrates the use of the material in double-sided laser printing for three-dimensional optical imaging.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Hemin Wang, Yanling Hao, Lele Xiang, Xiaosi Qi, Lei Wang, Junfei Ding, Yunpeng Qu, Jing Xu, Wei Zhong
Summary: This study designed Fe3O4-FeCO3/MWCNTs/RGO MCNCs composites and fabricated large-scale samples using hydrothermal and freeze-drying methods. The microstructural investigation showed that these materials had a mixed-dimensional structure, which improved impedance matching features, polarization, and conduction loss abilities, leading to significantly enhanced electromagnetic absorption properties.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Zhenshan Yu, Hao Chen, Xuequan Chen, Yu-Sheng Lin
Summary: This study presents a silicon dielectric metamaterial (SDM) composed of two outer symmetric semi-circular rings and two inner symmetric split-ring resonators (SRRs). The electromagnetic responses of the SDM device in different modes were studied through numerical simulations and experiments. Increasing the structure height of the SDM device resulted in red-shifted resonances and stronger intensities. This study provides a new design strategy for the development of frequency filtering, polarization switching, and resonance modulation characteristics in THz-wave applications.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Yiming Qi, Na Zhang, Meng Zong, Yangxianzi Liu, Weixing Chen
Summary: This study prepares dielectric/carbon fiber based nanocomposites wave-absorbing materials using liquid diffusion and high temperature carbonization strategies. By tuning the element type, drying mode, and filling amount, the electromagnetic parameters and absorbing properties can be adjusted. The best synthesized sample shows excellent absorbing performance, making it suitable for a wide range of electromagnetic wave absorption applications.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Carlos D. Gonzales-Lorenzo, T. K. Gundu Rao, Alberto A. Ccollque-Quispe, Jorge Ayala-Arenas, Monise B. Gomes, Betzabel N. Silva-Carrera, Roseli F. Gennari, Valeria S. Pachas, F. Monzon-Macedo, H. Loro, Jose F. D. Chubaci, Nilo F. Cano, Rene R. Rocca, Shigueo Watanabe
Summary: In this study, CaSiO3 doped with different ppm of Eu was synthesized using the devitrification method. Various physical properties were analyzed, revealing that the intensity and temperature of the high-temperature TL peak increased with higher dopant amounts. Fluorescence measurements indicated the presence of Eu2+ and Eu3+ ions in the samples. EPR spectra confirmed the existence of two defect centers.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Yanning Qu, Xinyang Li, Mei Cui, Renliang Huang, Wanquan Ma, Yunting Wang, Rongxin Su, Wei Qi
Summary: In this study, a new molybdenum disulfide/N,S-doped carbon quantum dots (MoS2/N,S-CQDs) heterojunction with enhanced light absorption and electrons transfer di-functional properties was constructed via a facile one-pot hydrothermal method. The heterojunction showed remarkable efficiencies in degrading methylene blue (MB) and malachite green (MG) in an actual water system under simulated sunlight irradiation. The facile synthetic technique and effective multifunctional properties of the composite have the potential for further research and industrial applications.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Jiayi Wang, Penggang Ren, Xueyan Zhao, Zhengyan Chen, Yanling Jin, Zengping Zhang
Summary: In this study, a novel homojunction photocatalyst was developed by combining defective g-C3N4 and flaked g-C3N4, which showed excellent degradation performance and cycling stability, and exhibited practicality in several simulation experiments.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Jing Yan, Xiaoxiao Zhao, Weixing Chen, Panbo Liu
Summary: This research presents a self-templated strategy to prepare a spherical superstructure of carbon nanorods through material modification and pyrolysis. The resulting material exhibits a large controllable radius of curvature and shows excellent microwave absorbing properties due to its high specific surface area and mesoporous structure.
MATERIALS RESEARCH BULLETIN
(2024)
Review
Materials Science, Multidisciplinary
Qinglin Zeng, Zepeng Lv, Shaolong Li, Bin Yang, Jilin He, Jianxun Song
Summary: Liquid metal batteries possess stable safety performance, high rate performance, and thermal stability. The electrolyte, an important component of the battery, plays a significant role in achieving these remarkable performance characteristics. This paper reviews the important research progress of liquid metal batteries electrolyte and discusses the influence of different electrolyte types on energy efficiency. It also highlights the limitations and challenges of existing electrolytes and proposes key development directions for liquid metal electrolytes.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Song Wu, Junli Wang, Xuanbing Wang, Di Jiang, Jinlong Wei, Xiaoning Tong, Zhenwei Liu, Qingxiang Kong, Naixuan Zong, Ruidong Xu, Linjing Yang
Summary: In this study, a composite electrode composed of Ti/TiH2/beta-PbO2_Mn3O4@C was fabricated and investigated for zinc electrowinning. The composite electrode exhibited low overpotential, Tafel slope, icorr, and high voltage stability, outperforming most reported Ti-based PbO2 electrode materials. The excellent catalytic activity can be attributed to the low resistance and porous interlayer of TiH2 nanosheets, as well as the addition of Mn3O4@C micro-flakes to the active layer.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
E. Tsoutsoumanos, T. Karakasidis, N. Laskaris, P. G. Konstantinidis, G. S. Polymeris, G. Kitis
Summary: This study investigates the correlation between nanocrystal dimensions and thermoluminescence signal magnitude through simulations conducted in Python. Two mathematical models, OTOR and IMTS, were used to derive theoretical luminescence signals. The obtained results were compared with experimental data and a thorough comparative discussion was conducted.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Vishnu Aggarwal, Sudhanshu Gautam, Aditya Yadav, Rahul Kumar, Bipul Kumar Pradhan, Brajesh S. Yadav, Govind Gupta, Senthil Kumar Muthusamy, Sumeet Walia, Sunil Singh Kushvaha
Summary: Recently, there has been a great demand for highly responsive photodetectors that can detect a wide range of wavelengths. Researchers have successfully fabricated a broadband metal-semiconductor-metal photodetector by integrating sputtered Bi2Se3 with laser molecular beam epitaxy grown GaN film. This photodetector shows high responsivity in both the ultraviolet and near-infrared regions.
MATERIALS RESEARCH BULLETIN
(2024)
