Article
Thermodynamics
Wladyslaw Janusz, Ewa Skwarek, Dariusz Sternik, Stanislaw Pikus
Summary: Yttrium citrate was synthesized in aqueous environment through hydrothermal treatment. The product is crystalline yttrium citrate dihydrate, which undergoes thermal decomposition in synthetic air, releasing water and carbon dioxide.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Materials Science, Multidisciplinary
Subhendu Jana, Mohd Ishtiyak, Lingannan Govindaraj, Sonachalam Arumugam, Bikash Tripathy, Sairam K. Malladi, Manish K. Niranjan, Jai Prakash
Summary: A monophasic polycrystalline sample of Ba2Ge2Te5 has been synthesized for the first time using the sealed tube solid-state method. The structure and properties of Ba2Ge2Te5 were confirmed through detailed analysis. It was found that Ba2Ge2Te5 exhibits both metallic and semiconductor properties, with a metal to insulator transition within a certain temperature range.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Chemistry, Physical
Cody Kunka, Apaar Shanker, Elton Y. Chen, Surya R. Kalidindi, Remi Dingreville
Summary: Traditional diffraction techniques are limited by the difficulty of decoding desired material information, but using machine learning and feature identification can more comprehensively and accurately predict structural information.
NPJ COMPUTATIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Charles A. Bolzan, Danay J. Manzo, Christian Notthoff, Patrick Kluth, Raquel Giulian
Summary: The study reveals that In(1-x)Al(x)Sb films are easily amorphized and become porous after irradiation. Films with higher Al concentrations are less porous after irradiation and show fewer Al-Sb bonding on the surface.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Physical
Iztok Naglic, Blaz Leskovar, Zoran Samardzija, Bostjan Markoli
Summary: This study investigated the influence of gallium addition on the phases formed in Al-Mn alloys during casting, revealing that an increase in gallium content led to the formation of IQCs and DQCs in the alloys. Microanalysis showed that IQCs contained more gallium and less manganese compared to DQCs.
Article
Materials Science, Multidisciplinary
Walther-Dario Bejarano-Pena, Brenda Alcantar-Vazquez, Rosa-Maria Ramirez-Zamora
Summary: Lithium silicate-based CO2 sorbents were synthesized using steel metallurgical slags, with K2CO3 addition improving CO2 capture efficiency by facilitating CO2 diffusion. The best capture capacity value of 104 mg(CO2)/g(material) was achieved with 20 wt% K2CO3 at 600 degrees C. Thermal stability was excellent, with only a 10% reduction in CO2 capture capacity after 20 adsorption-desorption cycles using 20 vol% CO2.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Chemistry, Physical
Munmun Basak, Md Lutfor Rahman, Md Farid Ahmed, Bristy Biswas, Nahid Sharmin
Summary: Cobalt ferrite nanoparticles were synthesized using co-precipitation technique with different precipitating agents, affecting the structure and size distribution. Various analysis methods showed highly correlated results, with SSP method being the most compatible.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Masaki Tahara, Kazuya Hasunuma, Hideki Hosoda
Summary: This study investigated the decomposition process of the isothermal alpha '' phase in beta-Ti alloys, and found that the resulting alpha + beta dual phase inherited the microstructural characteristics of the alpha ''(iso) phase. The research results indicate the existence of a strict variant selection rule between the decomposed alpha and beta phases, with a specific variant combination observed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Textiles
K. Raja, B. Prabu, P. Ganeshan, V. S. Chandra Sekar, B. NagarajaGanesh
Summary: The study characterized cellulose fibers extracted from the stem of Shwetark plant for potential use as polymeric reinforcement. Chemical analysis showed high cellulose content and good thermal stability, making the fibers suitable for various applications. These findings suggest that Shwetark fibers could be prospective candidates to replace harmful synthetic fibers.
JOURNAL OF NATURAL FIBERS
(2021)
Article
Materials Science, Composites
Ruey Shan Chen, Mohd Hafizuddin Ab Ghani, Sahrim Ahmad, Mou'ad A. Tarawneh, Sinyee Gan
Summary: The study found that gamma radiation can improve the tensile properties and dimensional stability of composites with lower RHF loadings, with the maximum enhancements observed at 40 wt% RHF with 50 kGy. However, at higher RHF loadings, only the lower dose of 25 kGy showed positive effects on tensile performance and water resistance. High dose of 150 kGy led to a failure in mechanical and thermal stability in the composites.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Cyril Besnard, Robert A. Harper, Enrico Salvati, Thomas E. J. Moxham, Leon Romano Brandt, Gabriel Landini, Richard M. Shelton, Alexander M. Korsunsky
Summary: In this study, a multi-scale correlative approach was used to compare artificially demineralised human enamel with healthy enamel, revealing structural differences at the micron to sub-micron scale. The decrease in Ca/P atomic % ratio in etched samples compared to healthy enamel, as shown by energy-dispersive X-ray spectroscopy, suggests greater loss of calcium. Synchrotron wide-angle X-ray scattering was employed to analyze differences in lattice structure and texture before and after etching, providing insights into the demineralisation-induced enamel structure alteration.
MATERIALS & DESIGN
(2021)
Article
Energy & Fuels
Mehmet Erman Mert
Summary: The study investigated the efficiency of hydrogen production by doping nickel foam precursors with nickel, cobalt particles, and decorating with silver nano-domes. The catalyst NF/NiCo-2/Ag showed the best performance in terms of lower hydrogen overpotential, higher HPE, stability, and response during the electrolysis process in 1 M KOH.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Roya Dehghan-Niri, Nikolaos E. Tsakoumis, Alexey Voronov, Anders Holmen, Randi Holmestad, Per-Erik Vullum, Oyvind Borg, Erling Rytter, Magnus Ronning, John C. Walmsley
Summary: The structure of a rhenium promoted Fischer-Tropsch cobalt catalyst supported on gamma-Al2O3 was investigated using TEM and XRD. The size and morphology of cobalt aggregates, particles, and crystallites were analyzed in different states. This study provides important information for understanding the relationship between catalyst structure and performance.
Article
Chemistry, Physical
Federica Ursi, Simone Virga, Gonzalo Garcia-Espejo, Norberto Masciocchi, Antonino Martorana, Francesco Giannici
Summary: Layered TiS2 intercalated with linear alkylamines has shown promising performance as a flexible n-type thermoelectric material, but its thermal and environmental stability remains a challenge. This study demonstrates that amine-intercalated TiS2 prepared by mechanochemical process is prone to chemical decomposition through sulfur exsolution, and molecular oxygen is likely to mediate this reaction. Computational analysis suggests the formation of Ti-N adducts as a result of amine groups substituting for sulfur vacancies.
Article
Mechanics
Heeyoung Lee, Jongkyeong Seong, Wonseok Chung
Summary: Incorporating small amounts of MWCNTs into cement-based materials enhances heat generation and thermal response, with the heat generation increasing with curing time and MWCNT concentrations. The composite's heat generation increases quadratically with MWCNT concentration, and electrical resistance is dependent on the hydration reaction progress. In cementitious composites with higher MWCNT concentrations, electrical resistance decreases with increasing curing days.
COMPOSITE STRUCTURES
(2021)
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)