Article
Chemistry, Organic
Andrii Fedyk, Evgeniy Y. Slobodyanyuk, Olha Stotska, Bohdan V. Vashchenko, Dmitriy M. Volochnyuk, Dmitriy A. Sibgatulin, Andrey A. Tolmachev, Oleksandr O. Grygorenko
Summary: The scalable synthesis of saturated heterocyclic dimethyl phosphine oxides was achieved through key steps involving reactions of HP(O)Me-2, palladium-catalyzed reactions, and base-mediated nucleophilic substitutions. Introduction of the P(O)Me-2 group significantly affected the compound's basicity, hydrophilicity, and aqueous solubility. This method shows potential for generating lead-like three-dimensional compound libraries as confirmed using the LLAMA tool.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Di Wang, Guang-Hui Chen, Lv-Bing Yuan, Cheng-Cheng Feng, Jian Zhang, Lei Zhang
Summary: This study reports the first examples of inorganic macrocyclic tin-oxo clusters stabilized by sulfate ligands, demonstrating interesting mixed valence behaviors. Introducing other metal ions can alter the structure of tin clusters and significantly improve their catalytic activities.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Physical
Ziyin Kong, Weipeng Hu, James P. P. Morken
Summary: A Pt-catalyzed hydrosilylation reaction of (Z)-1,2-diborylethylene leads to the formation of a 1,2-diboryl-1-silylalkane, which can be used in catalytic cross-coupling reactions. Depending on the catalyst and the reaction conditions, the coupling can occur at either the α or β position relative to the silane center.
Article
Chemistry, Multidisciplinary
Hang-Fei Tu, Alienor Jeandin, Marcos G. Suero
Summary: In this study, a catalytic one-step synthesis of cyclopropenium cations using readily available alkynes and hypervalent iodine reagents as carbyne sources is reported. A novel Rh-carbynoid catalytically generates monovalent cationic carbynes (:C+-R), which are then transferred to alkynes via an oxidative [2+1] cycloaddition, resulting in a new type of ester-substituted CPC. This method allows for regioselective attack of various carbon and heteroatomic nucleophiles, providing a new platform for the synthesis of valuable cyclopropenes that are difficult or impossible to make by current methodologies.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Review
Chemistry, Multidisciplinary
Manila Ozhukil Valappil, Subbiah Alwarappan, Vijayamohanan K. Pillai
Summary: Phosphorene quantum dots (PQDs) are unique zero-dimensional nanostructures with special physicochemical and surface properties. Considerable progress has been made in PQD research in catalysis, particularly in the fields of photocatalysis and electrocatalysis. This review systematically summarizes the synthesis methods and physicochemical properties of PQDs, and critically discusses their potential applications and future prospects in catalysis.
Article
Chemistry, Physical
A. Thayer, I Hlova, Y. Mudryk, X. Liu, V. K. Pecharsky
Summary: Single-phase LaFe13-x-yMxSiyN3 compounds were synthesized by ammonia flow, exhibiting increased lattice expansion and magnetic ordering transitions as a result of nitrogenation. The nitrides show weak and broad magnetocaloric effects, and stability below 750 K but decompose above this temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Physics, Applied
Shrreya Krishnamurthy, Padmini Pandey, Jagjit Kaur, Sudip Chakraborty, Pabitra K. Nayak, Aditya Sadhanala, Satishchandra Ogale
Summary: This review summarizes the latest research progress and challenges faced in the field of organic-inorganic hybrid perovskites and inorganic halide perovskites in photovoltaics and optoelectronics, as well as strategies to control their properties and eliminate defects.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Chemistry, Applied
Maria Pilar Cumplido, Maria Jose Diaz-Cabanas
Summary: ITQ-34 zeolite is a promising catalyst with a three-dimensional mesoporous structure for FCC process. This study successfully synthesized aluminum-rich ITQ-34 zeolite, addressing the issues of low germanium content and blockage of channels by phosphate compounds. The aluminum ITQ-34 zeolite exhibits excellent catalytic performance in propylene production.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Petr Vosahlo, Ivana Cisarova, Petr Stepnicka
Summary: This paper presents the synthesis of four semihomologous dppf congeners with a carbonyl spacer, and their applications in ferrocene phosphine complexes and palladium complexes, as well as the evaluation of their electronic properties and catalytic performance. The best catalytic results were obtained with the Pd(0) complex containing the least electron-rich ligand.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Jiri Schulz, Jakub Antala, Ivana Cisarova, Petr Stepnicka
Summary: Compared to phosphine counterparts, little attention has been paid to the study of ferrocene stibines. This paper describes the synthesis of ferrocene stibine derivatives and their reactivity and coordination behavior. The compounds were characterized through various spectroscopic techniques and crystallography. The research findings reveal important insights into the structural parameters and electrochemical properties of the ferrocene stibines, but their catalytic efficiency needs to be further improved in Suzuki-Miyaura biaryl coupling reactions.
DALTON TRANSACTIONS
(2023)
Article
Horticulture
Sina Cosmulescu, Ana-Maria Stoenescu, Ion Trandafir, Felicia Tutulescu
Summary: Comparing homemade vinegars made from wild fruits with commercial vinegars, the former have higher quality in terms of chemical composition and physicochemical properties, containing more phenolic compounds.
Review
Biochemistry & Molecular Biology
Luigi Mandrich, Antonia Valeria Esposito, Silvio Costa, Emilia Caputo
Summary: Plants, such as carrots, are valuable sources of drugs for cancer treatment. Carrots contain bioactive compounds that have significant health-promoting features. In this review, we explore the chemical composition and functional properties of different carrot subspecies, and focus on compounds with anticancer characteristics and their potential use in developing novel anticancer therapeutic strategies.
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)
Review
Chemistry, Medicinal
Gitishree Das, Kyung Jik Lim, Ourlad Alzeus G. Tantengco, Harold M. Carag, Sandra Goncalves, Anabela Romano, Swagat Kumar Das, Ericsson Coy-Barrera, Han-Seung Shin, Erick Paul Gutierrez-Grijalva, J. Basilio Heredia, Jayanta Kumar Patra
Summary: Cactus species are plants that grow in arid regions and are used for food, medicine, and decoration. Recent research indicates that cactus materials contain valuable natural products, but many species are endangered due to overexploitation.
PHYTOTHERAPY RESEARCH
(2021)
Article
Chemistry, Applied
Ruslan A. Kovalevsky, Konstantin V. Vasechkin, Alexander S. Kucherenko, Sergei G. Zlotin
Summary: A direct enantioselective synthesis of 2-substituted chromen-4-ones with an amino group at the α-stereogenic center of the heterocycle has been developed. This method is based on Mannich-type asymmetric addition of 3-hydroxychromen-4-one and its analogues to N-protected imines in the presence of the alkaloid dihydrocuprein. α-Stereogenic chromenone amino derivatives were obtained in yields of 81-95% with up to 98% ee. The chiral adducts were then transformed into various enantiomerically enriched chromen-4-one functional derivatives.
ADVANCED SYNTHESIS & CATALYSIS
(2023)
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)