Article
Chemistry, Physical
Takashi Takeda, Kousuke Kato, Hajime Kiyono, Naoto Hirosaki
Summary: In this study, single phase powders of green emitting Ba2LiSi7-xAlxN12-xOx:Eu2+ phosphor were successfully prepared by controlling starting compositions, annealing conditions, and reaction vessels. The emission peak shifted depending on the Eu concentration, with the highest intensity observed at 3 at%. The phosphor exhibited a small thermal quenching of luminescence intensity and showed a high internal quantum efficiency of 93% when washed with hydrochloric acid solution.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Physics, Applied
Huidong Tang, Longzhu Li, Rong Yang, Yuwei Chen, Hyo Jin Seo
Summary: In this study, Eu2+/Ga3+ co-doped Na2ZrSi2O7 phosphors were prepared using a simple solid-state reaction route, and their structural characteristics, photoluminescence spectra, and application performances were investigated. The results showed that co-doping improved the luminescence efficiency of the Eu2+ activator and increased the maximum luminescence absolute quantum efficiency, with good thermal stability observed.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Polymer Science
Jihua Duan, Guichang Jiang
Summary: A novel physically crosslinked polyurethane (PUII) based on isophorone diisocyanates was successfully prepared and characterized. The PUII exhibited various self-assembly morphologies and showed enhanced antibacterial effect when supplemented with an antibacterial agent. Additionally, the antimicrobial polyurethane films displayed good mechanical properties.
Article
Chemistry, Physical
E. P. Skipetrov, E. Bogdanov, B. B. Kovalev, L. A. Skipetrova, A. Knotko, A. Emelyanov, A. N. Taldenkov, V. E. Slynko
Summary: We synthesized a single-crystal Pb1-x-ySnxScyTe ingot and studied the magnetic properties of alloys cut from it. The samples exhibited paramagnetic contribution at low temperatures and high-temperature ferromagnetic ordering in p-type samples, with spin-glass-like behavior and ferromagnetic hysteresis loops detected at temperatures below 100 K.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Elisson Andrade Batista, Anielle Christine Almeida Silva, Thais Karine de Lima, Eder Vinicius Guimaraes, Ricardo Souza da Silva, Noelio Oliveira Dantas
Summary: This study focused on investigating the coordination geometry of Mn2+ ions in ZnO nanocrystals and its impact on structural, morphological, optical, and magnetic properties. Various techniques such as XRD, SEM with EDS, UV-Vis-NIR spectroscopy, FL, and EPR were utilized to explore the physical properties. The results provide valuable insights for developing magneto-optic devices and creating materials with tailored properties based on transition metal ion concentrations.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Elena Gorokhova, Olga Dymshits, Ivan Venevtsev, Liza Basyrova, Irina Alekseeva, Alexander Khubetsov, Mikhail Baranov, Marina Tsenter, Aleksander Zhilin, Sergey Eron'ko, Eugenia Oreschenko, Faina Muktepavela, Karlis Kundzins, Pavel Loiko
Summary: In this study, zinc oxide optical ceramics containing 0-2 wt% ytterbium were prepared, with Yb2O3 acting as an inhibitor for ZnO grain growth. The ceramics exhibit transmittance up to 60% in the visible region and their infrared transmission is determined by free charge carrier absorption. Additionally, under X-ray excitation, intense luminescence bands are observed in the blue and green regions, with Yb2O3 causing a redistribution of luminescence intensity and faster emission decay.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Manju Kumari, N. Vijayan, Debabrata Nayak, Kiran, J. S. Tawale, Preetam Singh, R. P. Pant
Summary: A large bulk size single crystal of Potassium Acid Phthalate was successfully harvested using the Sankaranarayanan-Ramasamy method with a (010) oriented seed at the bottom. The quality and optical properties of the crystal were assessed using various techniques such as high-resolution X-ray diffraction and UV-Vis analysis. The surface morphological pattern was thoroughly studied using scanning electron microscopy.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Polymer Science
Greta Ongaro, Alessandro Pontefisso, Elena Zeni, Francesco Lanero, Alessia Famengo, Federico Zorzi, Mirco Zaccariotto, Ugo Galvanetto, Pietro Fiorentin, Renato Gobbo, Roberta Bertani, Paolo Sgarbossa
Summary: Two nanomicas with different particle size distributions were used to prepare transparent epoxy nanocomposites. The nanocomposites showed homogeneous dispersion and no aggregation of nanoparticles. Despite the good dispersion, no exfoliation or intercalation was observed. The nanocomposites exhibited a slight decrease in transparency and no significant change in thermal behavior. The mechanical characterization revealed an increased Young's modulus but reduced tensile strength. A peridynamics-based approach was implemented to estimate the effective Young's modulus and fracture toughness of the nanomodified materials, and the results were validated against experimental data. The mica-based composites showed high volume resistivity and could be used as insulating materials.
Article
Materials Science, Multidisciplinary
Katarzyna Lenczewska, Damian Szymanski, Dariusz Hreniak
Summary: Microwave-assisted hydrothermal method was used to synthesize single-phase sub-microcrystalline BiVO4:Tm3+ powders with two polymorphic crystal structures. The crystal structure and the size of the crystallites affect the band gap and luminescent properties of BiVO4:Tm3+.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Multidisciplinary
Rajendra Kumar, Abhijit Chatterjee, S. M. Shivaprasad
Summary: Mg-doping enhances lateral growth and coalescence of GaN nanorods, while Si-doping promotes mutual misorientation; Doping can effectively tune the structural and optical properties of GaN nanorods.
MATERIALS RESEARCH BULLETIN
(2021)
Review
Chemistry, Multidisciplinary
Kellie Jenkinson, Luis M. Liz-Marzan, Sara Bals
Summary: Electron tomography is an important technique for visualizing nanoparticle morphology. This article summarizes the experimental and computational development of various multimode tomography techniques and their role in overcoming materials science challenges. Current challenges and future directions of multimode tomography are also discussed.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Analytical
Olivier De Castro, Jean-Nicolas Audinot, Hung Quang Hoang, Cherif Coulbary, Olivier Bouton, Rachid Barrahma, Alexander Ost, Charlotte Stoffels, Chengge Jiao, Mikhail Dutka, Michal Geryk, Tom Wirtz
Summary: The article introduces the use of magnetic sector secondary ion mass spectrometry (SIMS) on a widely used instrument, focused ion beam (FIB)-scanning electron microscopy (SEM), for nanoscale investigations. It provides a detailed description of the instrument's layout and performance, as well as the research results obtained in various fields. The system demonstrates versatile capability for high-performance correlative studies in materials science and life sciences.
ANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Robar Arafat, Christian Koehn, Annelise Jean-Fulcrand, Tim Abraham, Georg Garnweitner, Christoph Herrmann
Summary: This study investigated the usability of Al2O3, ZrO2, and TiO2 nanoparticles in water-glycerine based nanofluids as MQL-cutting fluids in tribological tests. The physical-chemical properties and behavior of the nanofluids were assessed, and the influence of these properties on wear and particle deposition on steel workpieces was evaluated.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Ceramics
Priyanka, Saravanan Muthiah
Summary: A trade-off between thermoelectric performance and cost-effectiveness enables commercial thermoelectric power generation. FeSi2 based materials have potential due to their low-cost and abundance, but their thermoelectric performance is inferior to other materials. This work presents a simple synthesis strategy, resulting in improved thermoelectric and mechanical properties.
CERAMICS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
F. Giannazzo, R. Dagher, E. Schiliro, S. E. Panasci, G. Greco, G. Nicotra, F. Roccaforte, S. Agnello, J. Brault, Y. Cordier, A. Michon
Summary: The integration of graphene with nitride semiconductors was achieved through chemical vapor deposition on AlGaN/sapphire templates, resulting in a uniform and conformal coverage that prevented degradation of AlGaN morphology. The chemical modification and nanocrystalline structure of graphene and its properties were thoroughly investigated, revealing potential applications in high-power/high-frequency electronics and optoelectronics.
Article
Engineering, Environmental
Lei Zhou, Muhammad Khurram Tufail, Le Yang, Niaz Ahmad, Renjie Chen, Wen Yang
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Chemistry, Physical
Yaodan Zhou, Wen Yang, Wellars Utetiwabo, Yi-meng Lian, Xue Yin, Lei Zhou, Peiwen Yu, Renjie Chen, Shaorui Sun
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2020)
Article
Engineering, Environmental
Muhammad Khurram Tufail, Lei Zhou, Niaz Ahmad, Renjie Chen, Muhammad Faheem, Le Yang, Wen Yang
Summary: A novel lithium superionic conductor Li2Sb0.05P2.95S10.5I0.5 as solid-state glass-ceramics electrolytes was synthesized and showed high Li+ conductivity and wide voltage stability. By optimizing dopant contents, the air stability of the electrolyte was significantly improved. This research provides a new concept for the design of high-performance all-solid-state lithium-sulfur batteries.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Muhammad Faheem, Wanlong Li, Niaz Ahmad, Le Yang, Muhammad Khurram Tufail, Yaodan Zhou, Lei Zhou, Renjie Chen, Wen Yang
Summary: The research successfully synthesized a 3D nitrogen-doped mesoporous carbon containing Co nanocrystals using a simple pressure-cooking strategy, which can improve cycle stability in lithium-sulfur batteries. By using biomass as raw material, a green, facile, scalable, and low-cost synthetic strategy was achieved.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Lei Zhou, Muhammad Khurram Tufail, Niaz Ahmad, Tinglu Song, Renjie Chen, Wen Yang
Summary: By employing a dual-doping strategy, a functional inorganic electrolyte Li7P2.9Ce0.2S10.9Cl0.3 with higher lithium-ion conductivity was synthesized, leading to the establishment of a stable extrinsic cathode interface, resulting in enhanced performance of the lithium-sulfur battery.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Niaz Ahmad, Shaorui Sun, Peiwen Yu, Wen Yang
Summary: A novel Li2.96P0.98S3.92O0.06-Li3N glass-ceramic electrolyte is developed, which exhibits excellent ionic conductivity and moisture resistance. The formation of a stable solid electrolyte interphase effectively inhibits the growth of Li dendrites. Long-term cycling in Li//Li cells is achieved.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Le Yang, Yongxin Huang, Muhammad Khurram Tufail, Xuefeng Wang, Wen Yang
Summary: This study designs a fireproof and anion-immobilized composite electrolyte, which improves the safety and energy density of lithium-ion batteries (LIBs) by updating the electrolytes from a liquid state to a solid state. The experimental results show that the composite electrolyte has excellent conductivity and ion migration capability, enabling the LIBs to have outstanding rate capability and cycling stability.
Article
Nanoscience & Nanotechnology
Lu Lv, Niaz Ahmad, Chaoyuan Zeng, Peiwen Yu, Tinglu Song, Qinxi Dong, Wen Yang
Summary: Sulfide solid electrolytes (SSEs) have great potential for high-energy-density secondary batteries with improved safety features. By using a cosubstitution strategy, the sigma Li+ can be increased and the activation energy can be reduced, leading to the suppression of structural hydrolysis. The novel SSEs show excellent performance in Li plating/stripping over long periods of time and exhibit low overpotential at the interface. The improved stability between the electrolyte and LiNbO3@NCA, achieved through GeO2 substitution, contributes to the remarkable electrochemical performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Peiwen Yu, Niaz Ahmad, Chaoyuan Zeng, Lu Lv, Qinxi Dong, Wen Yang
Summary: This study focuses on structural tuning of Li7P3S11 with In2S3 dopant to improve the performance of the electrolyte. The designed Li6.93P2.97In0.02S10.92 electrolyte shows better Li+ conductivity and air stability. In2S3 increases the electrochemical stability window and suppresses the redox decomposition of the electrolyte, resulting in high discharge capacity and low interfacial resistance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xiaoyan Wang, Le Yang, Niaz Ahmad, Leguan Ran, Ruiwen Shao, Wen Yang
Summary: A colloid liquid electrolyte (CLE) with lithium thiocarbonate (LTC) colloids is designed to enhance the capacity and durability of lithium-ion batteries. The LTC colloids improve the transfer kinetics of lithium ions at the cathode/electrolyte interface, resulting in higher conductivity and enhanced cycling stability. The introduction of LTC colloids also forms an ultrathin cathode electrolyte interface, further improving the interfacial charge transfer. This strategy shows potential for next-generation energy storage systems.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Wei He, Niaz Ahmad, Shaorui Sun, Xiao Zhang, Leguan Ran, Ruiwen Shao, Xuefeng Wang, Wen Yang
Summary: To meet the growing demand for higher energy density all-solid-state lithium batteries, increasing the working voltage of LiCoO2 is crucial. In this study, a nano-metric LNTO coated LCO cathode was designed to stabilize the cathode lattice and minimize side reactions. The stable spinel phase and the LNTO nano-layer improved the cyclic stability and li+ migration at the cathode interface, leading to sulfide-based ASSLBs with enhanced long-term performance.
ADVANCED ENERGY MATERIALS
(2023)
Article
Engineering, Environmental
Pengfei Zhai, Ruiwen Shao, Chaoyuan Zeng, Shuangquan Qu, Fei Pei, Yuchuan Li, Wen Yang
Summary: The practical application of high-rate solid-state lithium metal batteries has been hindered by uncontrolled dendrite growth, poor rate performance, and insufficient mechanical strength of solid polymer electrolytes (SPE) due to crystallization-induced anisotropic ion transport. In this study, a robust ion-rectifying PEO-TOC membrane was developed by incorporating titanium-oxo clusters (TOC) into PEO-LiN(CF3SO2)2 (LiTFSI) electrolyte. The PEO-TOC membrane showed dendrite-free lithium metal deposition and achieved high-rate performance and good cycling performance, which is challenging for routine SPEs with anisotropic ion flux and mechanical properties.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Peiwen Yu, Niaz Ahmad, Jie Yang, Chaoyuan Zeng, Xiaoxiao Liang, Weiming Huang, Mei Ni, Pengcheng Mao, Wen Yang
Summary: In this study, an Al and O dual-doped strategy was proposed to improve the reactivity of Li3PS4 solid-state electrolyte towards moisture and Li-metal, and to apply it in all-solid-state lithium batteries. The optimized Li3.08Al0.04P0.96S3.92O0.08 solid-state electrolyte showed high ionic conductivity and chemical stability, inhibiting structural hydrolysis and parasitic reactions. It exhibited good cycling performance and capacity retention in experiments.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Peiwen Yu, Shaorui Sun, Chunhao Sun, Chaoyuan Zeng, Ze Hua, Niaz Ahmad, Ruiwen Shao, Wen Yang
Summary: A novel Li2S-LixIn2S3 cathode material is designed and synthesized for all-solid-state Li/S batteries (ASSLSBs), which exhibits efficient electronic and ionic transport, minimized volume change, and excellent electrochemical performance.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Lei Zhou, Muhammad Khurram Tufail, Yaozu Liao, Niaz Ahmad, Peiwen Yu, Tinglu Song, Renjie Chen, Wen Yang
Summary: All-solid-state Li-SeS2 batteries have advantages in thermal stability and energy density compared to traditional liquid Li-ion batteries. However, the low ionic conductivity of the solid-state electrolyte and poor kinetic property of the cathode composite limit their practical application. In this study, a high conductivity Li7P2.9W0.05S10.85 glass-ceramic electrolyte was designed using a traditional ball milling method, and an interpenetrating network strategy was proposed for rational cathode composite design. The assembled batteries showed improved capacity and rate capability, demonstrating the importance of an interpenetrating network for carrier transport in cathode composite.
ADVANCED FIBER MATERIALS
(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)
