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, Inorganic & Nuclear
Mengran Sun, Xingyu Zhang, Wenhao Xing, Zhuang Li, Wenhao Liu, Zheshuai Lin, Wenlong Yin, Jiyong Yao
Summary: The discovery of two new chain tellurides with detailed crystal structures is reported, and first-principles calculations show that one of the materials has the potential to be used as an IR birefringent material. These findings may guide the exploration of new IR birefringent crystals.
INORGANIC CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Ivan S. Pavlov, Anna G. Ivanova, Vladimir P. Filonenko, Igor P. Zibrov, Alexei E. Voloshin, Pavel V. Zinin, Alexander L. Vasiliev
Summary: This study investigates the formation of boron carbide superhard particles through a liquid-phase reaction at high pressure and high temperature. The synthesized particles exhibit a rhombic hexecontahedron morphology with twelve five-vertex stars. Electron microscopy and X-ray diffraction were used to analyze the crystal structure of these particles, revealing multiple cycling twinning rather than quasi-crystalline symptoms. The specific shape of the particles is explained by the decrease of surface energy during formation at high pressure and high temperature.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Physical
Xinshu Zou, Hao Liu, Hao Xu, Xueyun Wu, Xiaocang Han, Jianli Kang, Kolan Madhav Reddy
Summary: This study proposes a simple strategy for synthesizing ultra-thin Cr2CTx MXenes with superior performance in hydrogen evolution reaction and high stability. The fabricated material exceeds even Pt catalyst in terms of performance, showcasing potential for practical applications.
MATERIALS TODAY ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Kimberly A. A. Dick
Summary: Gas-phase transmission electron microscopy provides important insights into the mechanisms of functional materials synthesis. This review summarizes the latest developments in understanding the in situ growth of novel nanostructural materials using electron microscopes. It focuses on the catalyzed growth of one-dimensional carbon-based and semiconductor nanostructures, and briefly touches on other types of nanocrystal and epitaxial crystal growth. The article also discusses how these methods contribute to answering critical questions about growth mechanisms and the relationships between synthesis parameters and materials properties.
Article
Materials Science, Multidisciplinary
Yao Chen, Jie Chen, Bin Zhang, Meiling Yang, Xiaofang Liu, Hengyang Wang, Lei Yang, Guoyu Wang, Guang Han, Xiaoyuan Zhou
Summary: Cu2S-composited SnSe materials show enhanced thermoelectric performance through optimizing power factor at varied temperature ranges. The composites achieve suppressed lattice thermal conductivity and enhanced zT values compared to pure SnSe, demonstrating the effectiveness of composited with elemental doping and substitution approach.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
J. Bartak, D. Valdes, S. Martinkova, J. Shanelova, P. Kostal
Summary: The study investigates crystal growth in undercooled melts in the GeSe2-rich region of the (GeSe2)x(Sb2Se3)1-x system. Two crystalline phases (Sb2Se3 and GeSe2) were directly observed using infrared microscopy. The growth rates of GeSe2 crystals depend only on temperature and are independent of the system's composition. The competitive growth of Sb2Se3 and GeSe2 is explained using existing crystal growth theories. New viscosity data for the (GeSe2)0.9(Sb2Se3)0.1 composition were obtained to complement the viscosity behavior in the (GeSe2)x(Sb2Se3)1-x system. The combination of growth and viscosity data provides valuable insights into crystal growth and allows for the prediction of crystal growth rates over a wide temperature range in the (GeSe2)x(Sb2Se3)1-x system.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Chemistry, Physical
Syed Asim Ali, Tokeer Ahmad
Summary: In the past two decades, environmental issues caused by human activities for development have become more prominent. Ignoring climate change and the stagnant approach of major oil industries have resulted in the melting of glaciers and the shrinking of mountain peaks. The imbalance in natural resources is leading to various crises that can affect livelihoods. Photocatalysis, particularly using transition metal chalcogenides (TMCs), is considered a simple and sustainable technique to generate energy and degrade pollutants. Among TMCs, molybdenum chalcogenides nanostructures show exceptional properties and promise in efficient hydrogen production and dye degradation through photocatalytic water splitting. This review discusses the applications of Mo-based chalcogenides nanostructures in hydrogen production and dye degradation, as well as the progress made in enhancing their photocatalytic activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Hao-Chin Huang, Kai-Yuan Hsiao, Yu-Han Tseng, Yan-De Chen, Ming-Yen Lu
Summary: In this study, an in situ transmission electron microscopy (TEM) heating system was used to investigate the morphological changes of cubic Ag nanoparticles (NPs) and Ag-based core-shell structures induced by sublimation, as well as the influence of shell coverage on thermal stability. It was found that large Ag NPs (>50 nm) showed a three-stage sublimation-induced morphological change, while small Ag NPs (<30 nm) showed a uniform sublimation. The sublimation process of core-shell NPs started at stage II, and the thermal stability was enhanced by carbon shell passivation.
Editorial Material
Chemistry, Multidisciplinary
Jingshan S. Du, Wenjie Zhou, Sara M. Rupich, Chad A. Mirkin
Summary: The structure of MTPs is determined by specific crystallographic features, and their formation pathways include growth from multiply twinned seeds or stepwise formation of new twin boundaries on single-crystalline seeds. Recent studies have utilized in situ transmission electron microscopy to provide real-time evidence for both pathways, which will aid in the design of robust MTP syntheses. Further research on the structural evolution and energetics of nanoparticles is needed for a complete understanding of MTP formation pathways.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Thomas Thersleff, Jordi Jacas Biendicho, Kunkanadu Rajappa Prakasha, Elias Martinez Moreno, Leif Olav Josang, Jekabs Grins, Aleksander Jaworski, Gunnar Svensson
Summary: Chemical doping can narrow the performance gap between Co-free and Co-containing lithium ion batteries, improving their longevity and stability. Optimized doping profiles enhance the structural and chemical compatibility of the layered Mn oxide system, resulting in unobstructed lithium ion pathways.
ADVANCED ENERGY MATERIALS
(2023)
Article
Materials Science, Ceramics
Diego Valdes, Simona Martinkova, Jiri Malek, Jaroslav Bartak
Summary: The crystal growth kinetics of Sb2Se3 in (GeSe2)x(Sb2Se3)1-x were studied, revealing two types of crystal growth: lateral crystal growth at the surface and crystal growth in the volume of the bulk sample. The transport of structural units during crystal growth can be described by viscosity in volume crystal growth, while it is influenced by surface diffusion in surface crystal growth.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Chemistry, Multidisciplinary
Guihuan Chen, Jinhui Zhang, Hongrui Wang, Hua Yuan, Xin Sui, Hao Zhou, Degao Zhong
Summary: A new rapid bottom-up colloidal synthetic route has been developed to synthesize SnSe2 nanosheets within 5 min, and a flexible photodetector based on SnSe2 nanosheets has been successfully fabricated with wide photodetection range and high flexibility.
Article
Chemistry, Physical
Yihan Yun, Wenlong Xie, Zhihua Yang, Guangmao Li, Shilie Pan
Summary: This study systematically investigated the structure-birefringence relationship between AgGaS2 (AGS) and NaGaS2 (NGS), finding that NGS has a larger birefringence than AGS, showing promising potential as an infrared birefringent material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Chemistry, Multidisciplinary
Shaidatul Najihah Matussin, Ashmalina Rahman, Mohammad Mansoob Khan
Summary: This review discusses the effects of different anions and sulfur sources on the morphology and crystal structure of metal oxides and chalcogenides.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Sukhendu Nandi, Sofiya Kolusheva, Ravit Malishev, Alexander Trachtenberg, T. P. Vinod, Raz Jelinek
CHEMISTRY-A EUROPEAN JOURNAL
(2015)
Article
Chemistry, Multidisciplinary
T. P. Vinod, Jay M. Taylor, Abhiteja Konda, Stephen A. Morin
Article
Chemistry, Multidisciplinary
Karina Golberg, Noa Emuna, T. P. Vinod, Dorit van Moppes, Robert S. Marks, Shoshana Malis Arad, Ariel Kushmaro
ADVANCED MATERIALS INTERFACES
(2016)
Article
Electrochemistry
K. B. Akshaya, T. P. Vinod, M. Nidhin, Anitha Varghese, Louis George
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2018)
Article
Materials Science, Multidisciplinary
Mark A. Rose, T. P. Vinod, Stephen A. Morin
JOURNAL OF MATERIALS CHEMISTRY C
(2018)
Review
Chemistry, Physical
Varsha Lisa John, Yamuna Nair, T. P. Vinod
Summary: This review discusses the impact of chemical and physical modifications on the photophysical properties of CQDs, such as photoluminescence, absorbance, and relaxivity. It also outlines the recent advancements and future prospects of optical and catalytic applications of CQDs enhanced through modifications of their structure and composition.
PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
(2021)
Article
Materials Science, Multidisciplinary
Soorya S. Raj, Deljo Davis, Pramila Viswanathan, Arunkumar Chandrasekhar, T. P. Vinod
Summary: This article presents a simple, inexpensive and scalable strategy for creating soft surface wrinkles on PDMS using buckling instability. The method is expected to have broad applicability and exhibits high efficiency in water collection and triboelectric charge generation.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2022)
Review
Chemistry, Physical
Gopika Ayiloor Rajesh, Varsha Lisa John, Aiswarya Pookunnath Santhosh, Athira Krishnan Nair Ambika, Vinod Thavarool Puthiyedath
Summary: This review summarizes the synthesis, properties, and applications of biomass-derived carbon dots in the field of biomedicine. It covers a wide range of properties that enable diverse biomedical applications, such as bioimaging, sensing, and drug delivery.
PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
(2022)
Review
Chemistry, Multidisciplinary
Soorya S. Raj, Romina Marie Mathew, Yamuna Nair, S. T. Aruna, T. P. Vinod
Summary: The morphology of soft materials, including natural systems, significantly influences their surface functionalities and responses to external stimuli. Surface features of natural soft systems are produced through controlled cell growth and tissue growth. Artificial systems that can mimic the morphology-dependent physicochemical responses of natural soft substrates can be prepared through various methods such as surface oxidation, thermal stress, and compressive stress. Wrinkling, an important morphological irregularity on soft substrates, can be achieved in artificial soft systems through experimental strategies like compressive stress, thermal stress, and surface oxidation. Wrinkled soft substrates, with their tunable, reversible, and responsive nature, have potential applications in electronics, optics, adhesives, etc.
Article
Chemistry, Physical
Varsha Lisa John, Francis Joy, Amy Jose Kollannoor, Kuruvilla Joseph, Yamuna Nair, T. P. Vinod
Summary: This study reports a novel synthesis route for preparing carbon quantum dots (CQDs) with customized surface functionality. By chemically modifying paper precursors and tethering amine groups on the paper substrates, CQDs with amine functional groups on the surface can be synthesized. The amine functionalization on the surface of CQDs enables their applications in DNA binding, suggesting their potential as efficient biological probes.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Varsha Lisa John, P. M. Fasila, K. P. Chaithra, T. P. Vinod
Summary: In this study, a simple one-pot hydrothermal synthesis method was used to prepare carbon dots from frankincense soot. The resulting carbon dots exhibited narrow size distribution and intense blue fluorescence. The study also investigated the characteristics of the surface functional groups of the carbon dots and their application in the detection of lead ions.
Article
Biochemistry & Molecular Biology
Varsha Lisa John, A. R. Nayana, T. R. Keerthi, Athira K. A. Krishnan, B. C. P. Sasidharan, T. P. Vinod
Summary: This study reports the preparation of functional silk fibers (SF) embedded with carbon dots (CD) through direct feeding of a CD-modified diet to silkworms. The CD synthesized from mulberry leaves is introduced to silkworms and exhibited blue fluorescence, and it can be used as an efficient fluorophore to detect dopamine. The SF infused with CD demonstrate unchanged nanostructures and physical characteristics, and a novel dopamine sensing application based on fluorescence is demonstrated.
MACROMOLECULAR BIOSCIENCE
(2023)
Article
Chemistry, Multidisciplinary
M. Roopesh, Deljo Davis, M. S. Jyothi, M. Vandana, B. S. Thippeswamy, Gurumurthy Hegde, T. P. Vinod, Rangappa S. Keri
Summary: The study evaluated the wound healing efficacy of sandalwood bark-derived carbon nanospheres loaded with curcumin-embedded polyvinyl alcohol (PVA) nanofiber membranes. Carbon nanospheres (CNS) were prepared by pyrolyzing sandal wood bark powder, with field emission scanning electron micrographs and energy dispersive X-ray technique confirming the morphology and carbon content. Curcumin was loaded onto synthesized CNS and anchored in a PVA matrix via electrospun nanofiber fabrication. The prepared PVA/CNS-curcumin nanofiber membranes showed efficient wound closure and better antimicrobial activity than control membranes.
Article
Chemistry, Physical
Soorya S. Raj, Romina Marie Mathew, Deljo Davis, Subramanyan Namboodiri Varanakkottu, Asha Srinivasan, T. P. Vinod
Summary: We have developed a simple and effective method to prepare stable wettability gradients on an elastomeric soft substrate, polydimethylsiloxane (PDMS). This method allows us to design and fabricate wettability gradients with rationally controlled directionality and shapes. The stability of the wettability gradients was studied and a chemical treatment method was developed to enhance the stability at room temperature. Stable wettability gradients prepared through this method can find applications as reliable platforms and scaffolds offering controlled or directional wetting and adhesion.
Article
Chemistry, Analytical
K. B. Akshaya, G. Reenamole, Kezia Sasitharan, T. P. Vinod, Anitha Varghese, Louis George
ANALYTICAL METHODS
(2019)
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)
