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
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
Chemistry, Physical
L. Vaculikova, V. Valovicova, A. E. Plevova, B. D. Napruszewska, D. Duraczynska, R. Karcz, E. M. Serwicka
Summary: Manganese oxides are effective catalysts for the oxidation of VOCs, and MnO2/montmorillonite composites were prepared and characterized. The composites showed higher activity in toluene oxidation and the catalytic performance in ethanol combustion was influenced by the distribution of potassium between montmorillonites and cryptomelane.
APPLIED CLAY SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Nicolas Zapp, Denis Sheptyakov, Alexandra Franz, Holger Kohlmann
Summary: Substituting hydrogen for oxygen atoms in metal oxides influences the solid-state properties, and holmium hydride oxide exhibits high thermal stability and inertness towards air, with an ordered fluorite superstructure.
INORGANIC CHEMISTRY
(2021)
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
I. Markevich, N. Korsunska, T. Stara, Yu. Polishchuk, I. Vorona, K. Kozoriz, S. Ponomaryov, O. Melnichuk, L. Melnichuk, A. Cremades, L. Khomenkova
Summary: Mn-doped ZnO, MgO and Zn0.75Mg0.25O samples were studied, and it was found that Zn0.75Mg0.25O solid solution has a bandgap of Eg-3.65 eV. The quenching of host defect-related luminescence was observed in ZnO:Mn and Zn0.75Mg0.25O:Mn, while Mn-related emission was absent. The energy level of MnZn 2+ center in Zn0.75Mg0.25O:Mn was below the conduction band bottom, and all excited states of MnZn 2+ ions were in the conduction band.
Article
Materials Science, Multidisciplinary
S. Shankar, O. P. Thakur, M. Jayasimhadri
Summary: Multiferroic composites of (1-x)NdMnO3 - (x)BaTiO3 show distinct peaks of orthorhombic NdMnO3 and tetragonal BaTiO3 with improved conducting nature and giant dielectric behavior in NMO-20BT composite. Impedance measurements confirm improved resistivity and thermally activated non-Debye type conduction behavior in NMO-BT composites. Enhanced remnant magnetization and improved magnetoelectric coupling due to lattice stability establish multiferroism in NMO-BT composites.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Shreya Kushwaha, Rajamani Nagarajan
Summary: In this study, Zn2MnO4 nano-material was successfully prepared by investigating the reaction between chloride salts of zinc and manganese with NaOH and recrystallizing under hydrothermal conditions. The characteristics and properties of the sample were confirmed through various analytical techniques, including its crystal structure, chemical composition, optical, and magnetic properties.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Materials Science, Textiles
Manivel Selvaraj, Pannirselvam Narayanan, Gopinath Rudramurthy, Sathishkumar Palanisamy
Summary: This study investigated the physico-mechanical, chemical, and thermal properties of cellulosic fibers extracted from the stem of Hibiscus vitifolius plant, confirming their potential for composite applications. The fibers showed high crystallinity, good tensile strength, and thermal stability, making them suitable for composite manufacturing. SEM images revealed rough fiber surfaces that could improve fiber-matrix bonding during composite preparation.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Biochemistry & Molecular Biology
Clodoaldo Valverde, Rafael S. Vinhal, Luiz F. N. Naves, Jean M. F. Custodio, Basilio Baseia, Heibbe Cristhian B. de Oliveira, Caridad N. Perez, Hamilton B. Napolitano, Francisco A. P. Osorio
Summary: A novel 4(1H) quinolinone derivative was synthesized and characterized, and its crystal intermolecular interactions, molecular global reactivity, and nonlinear optical properties were studied. The results indicate that this organic compound has great potential for various applications.
Article
Pharmacology & Pharmacy
Boris Peklar, Franc Perdih, Damjan Makuc, Janez Plavec, Jerome Cluzeau, Zoran Kitanovski, Zdenko Casar
Summary: The study successfully prepared the dimaleate form of glasdegib, which was shown to exist in a double-salt form through N-15 ssNMR and single-crystal X-ray diffraction analysis. Additionally, the new dimaleate form was fully characterized using thermal analysis and spectroscopy, and the physicochemical properties of both forms were compared.
Article
Chemistry, Physical
Kemryn Allen-Perry, Weston Straka, Danielle Keith, Shubo Han, Lewis Reynolds, Bhoj Gautam, Daniel E. Autrey
Summary: Two-dimensional materials based on transition metal carbides, such as MXenes, have unique properties and great potential in various applications. This study investigated the magnetic properties of Ti-based MXenes and found that the magnetic properties can be tuned by chemical etching conditions, which is beneficial for designing spintronic devices.
Article
Materials Science, Ceramics
Carmen Gherasim, Petronela Pascariu, Mihai Asandulesa, Marius Dobromir, Florica Doroftei, Nicusor Fifere, Andrei Dascalu, Anton Airinei
Summary: In this study, cupric oxide nanoparticles were prepared using a convenient chemical precipitation route. The effect of reaction conditions on the formation of CuO nanoparticles was investigated. The structural, morphological, optical, and electrical properties of the CuO nanostructures were analyzed using various techniques. Additionally, the photocatalytic activity of the CuO nanoparticles was studied.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Malgorzata A. Malecka, Piotr Wozniak
Summary: The study investigated the hierarchical organization of Yb-doped ceria nanocrystals into tube-like macro-particles using various techniques, revealing high shape stability and improved catalytic activity. Introduction of Yb3+ ions further enhanced the performance for propane oxidation, showcasing the potential of these materials as catalysts for soot oxidation.
Article
Materials Science, Multidisciplinary
Ganesh Shridhar Hegde, Vinay Parol, Ashok Rao, A. N. Prabhu, Joshua J. B. Levinsky, Graeme R. Blake
Summary: The thermoelectric properties of co-doped (Bi0.98In0.02)(2)Te2.7Se0.3/reduced graphene oxide composites were studied, showing that the addition of reduced graphene oxide can significantly reduce thermal conductivity and electrical resistivity while enhancing the power factor.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Chemistry, Multidisciplinary
Ling Ouyang, Xiaoya Fan, Zerong Li, Xun He, Shengjun Sun, Zhengwei Cai, Yongsong Luo, Dongdong Zheng, Binwu Ying, Jing Zhang, Abdulmohsen Ali Alshehri, Yan Wang, Ke Ma, Xuping Sun
Summary: In this study, a high-efficiency electrocatalyst Cu@TiO2/TP was reported for NO2- reduction to produce high-value ammonia (NH3). The Cu@TiO2/TP catalyst exhibited outstanding catalytic performance in neutral solution, with a high NH3 yield (760.5 mu mol h(-1) cm(-2)) and excellent faradaic efficiency (95.3%). It also demonstrated good electrochemical stability during cyclic tests and long-term electrolysis.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Yimei Liang, Longcheng Zhang, Qin Liu, Ling Ouyang, Yongsong Luo, Dongdong Zheng, Yan Wang, Shengjun Sun, Xiangguo Wang, Jing Zhang, Chenggang Xu, Xuping Sun
Summary: In this study, an amorphous Co-P alloy on nickel foam (Co-P/NF) is reported as an efficient and stable electrocatalyst for hydrogen evolution reaction (HER) in alkaline seawater electrolysis.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Xiaoya Fan, Donglin Zhao, Zhiqin Deng, Longcheng Zhang, Jun Li, Zerong Li, Shengjun Sun, Yongsong Luo, Dongdong Zheng, Yan Wang, Binwu Ying, Jing Zhang, Abdulmohsen Ali Alshehri, Yuxiao Lin, Chengwu Tang, Xuping Sun, Yinyuan Zheng
Summary: A highly efficient electrocatalyst for electrochemical nitrate reduction reaction (NO3-RR) is presented in this study, which is constructed by anchoring Co nanoparticles on TiO2 nanobelt array on titanium plate (Co@TiO2/TP). The constructed Schottky heterostructures accelerate the rate determining step and facilitate NO3- adsorption, ensuring the selective conversion to NH3. The Co@TiO2/TP electrocatalyst achieves excellent Faradaic efficiency (96.7%) and high NH3 yield (800.0 mu mol h(-1) cm(-2)) under neutral solution. Moreover, the Co@TiO2/TP heterostructure catalyst exhibits remarkable stability in a 50-h electrolysis test.
Article
Chemistry, Physical
Jie Chen, Longcheng Zhang, Jun Li, Xun He, Yinyuan Zheng, Shengjun Sun, Xiaodong Fang, Dongdong Zheng, Yongsong Luo, Yan Wang, Jing Zhang, Lisi Xie, Zhengwei Cai, Yuntong Sun, Abdulmohsen Ali Alshehri, Qingquan Kong, Chengwu Tang, Xuping Sun
Summary: The use of nickel-iron sulfide nanosheet array on nickel foam as a bifunctional electrocatalyst demonstrates high-performance and cost-effective electrolysis of seawater for hydrogen production. It delivers a current density of 500 mA cm(-2) at overpotentials of 300 and 347 mV for the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER) in alkaline seawater respectively. Moreover, it only requires a cell voltage of 1.85 V to drive 500 mA cm(-2) in a two-electrode electrolyzer, and shows strong stability for at least 50 hours of electrolysis in alkaline seawater, outperforming recently reported catalyst electrodes for seawater splitting.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Jie Liang, Longcheng Zhang, Xun He, Yan Wang, Yongsong Luo, Dongdong Zheng, Shengjun Sun, Zhengwei Cai, Jing Zhang, Ke Ma, Yinyuan Zheng, Xuping Sun, Chengwu Tang
Summary: By introducing chlorine-cycle as a redox mediator, this study developed a simple approach to expand conversion sites from a limited electrode surface to the entire electrolyte, achieving efficient, economical, and environmentally friendly nitrate synthesis. The nitrate formation rates reach 115.45 mg cm(-2) h(-1) in a three-electrode system and 790.1 mg cm(-2) h(-1) in a two-electrode system, both significantly higher than the rates of state-of-the-art nitrogen electrooxidation, confirming the remarkable effectiveness of this strategy in producing nitrate homogeneously and electrochemically. Importantly, almost no side product nitrite is generated in this work. In addition, the structure changes of electrodes are investigated using (quasi)-in situ techniques.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Inorganic & Nuclear
Xiaoya Fan, Xun He, Xianchang Ji, Longcheng Zhang, Jun Li, Long Hu, Xiuhong Li, Shengjun Sun, Dongdong Zheng, Yongsong Luo, Yan Wang, Lisi Xie, Qian Liu, Binwu Ying, Xuping Sun
Summary: In this study, high-efficiency electrosynthesis of ammonia via nitrite reduction is achieved using an Ag nanoparticle-decorated TiO2 nanoribbon array on a titanium plate. The system demonstrates a large NH3 yield of 514.3 mu mol h(-1) cm(-2) and a high faradaic efficiency of 96.4% at -0.5 V vs. a reversible hydrogen electrode in 0.1 M NaOH containing 0.1 M NO2-. It also exhibits excellent durability for 12 hours of electrolysis.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Materials Science, Multidisciplinary
Haipeng Wang, Fei Zhang, Mengmeng Jin, Donglin Zhao, Xiaoya Fan, Zerong Li, Yongsong Luo, Dongdong Zheng, Tingshuai Li, Yan Wang, Binwu Ying, Shengjun Sun, Qian Liu, Xijun Liu, Xuping Sun
Summary: A highly efficient electrocatalyst for NO2 reduction to NH3 was reported in this study, which consisted of V-doped TiO2 nanobelt array on a titanium plate. Both experimental results and theoretical calculations revealed that V doping enhanced the electrical conductivity of the nanobelt and optimized the free energy of the TiO2 specialIntscript crystal plane in the potential determining step, resulting in a positive effect on the electrochemical NO2 reduction to NH3. The designed V-TiO2/TP exhibited outstanding electrochemical NO2 reduction performance with a high NH3 yield of 540.8 μmol h-1 cm-2 at -0.7 V and an excellent Faradaic efficiency of 93.2% at -0.6 V versus reversible hydrogen electrode, surpassing TiO2/TP.
MATERIALS TODAY PHYSICS
(2023)
Article
Chemistry, Physical
Zhengwei Cai, Chaoqun Ma, Donglin Zhao, Xiaoya Fan, Ruizhi Li, Longcheng Zhang, Jun Li, Xun He, Yongsong Luo, Dongdong Zheng, Yan Wang, Binwu Ying, Shengjun Sun, Jia Xu, Qipeng Lu, Xuping Sun
Summary: In this study, Ni-doped TiO2 nanoribbon array on titanium plate (Ni-TiO2/TP) is reported as a highly active NO2RR electrocatalyst, which can simultaneously produce valuable ammonia (NH3) and eliminate NO-2 pollutants in water bodies. The catalyst exhibits a large NH3 yield of 380.27 mmol/h/cm2 and a high Faradaic efficiency of 94.89%, surpassing TiO2/TP. Density functional theory calculations reveal that Ni doping enhances intrinsic electrical conductivity and optimizes the adsorptive free energy of intermediates, leading to high selectivity of NO2--to-NH3 conversion.
MATERIALS TODAY ENERGY
(2023)
Article
Chemistry, Physical
Xun He, Long Hu, Lisi Xie, Zerong Li, Jie Chen, Xiuhong Li, Jun Li, Longcheng Zhang, Xiaodong Fang, Dongdong Zheng, Shengjun Sun, Jing Zhang, Abdulmohsen Ali Alshehri, Yongsong Luo, Qian Liu, Yan Wang, Xuping Sun
Summary: Nitrite (NO2-), a nitrogen-containing pollutant, is widely present in aqueous solution and causes environmental and health problems. Electro-catalytic reduction of NO2- is a promising and sustainable method to remove NO2- and produce valuable ammonia (NH3). In this study, NiS2 nanoparticles decorated TiO2 nanoribbon array on titanium mesh (NiS2@TiO2/TM) is reported as an excellent electrocatalyst for ambient NH3 synthesis through NO2- reduction reaction (NO2-RR). NiS2@TiO2/TM demonstrates a satisfactory NH3 yield of 591.9 lmol h-1 cm-2 and a high Faradaic efficiency of 92.1% when tested in NO2--containing solution. Additionally, it exhibits remarkable stability during a 12-hour electrolysis test.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Rui Han, Xi-Qiao Feng, Waldemar Vollmer, Paul Stoodley, Jinju Chen
Summary: Bacteria adapt the mechanical properties of their cell envelope, including cell wall stiffness, turgor, and cell wall tension and deformation, to grow and survive in harsh environments. This study quantified the mechanical properties and turgor of Staphylococcus epidermidis using theoretical modelling and experimental approaches. The results showed that high osmolarity leads to a decrease in both cell wall stiffness and turgor, and that the turgor change is associated with a change in bacterial cell viscosity. The study also found that cell wall tension is higher in deionized water and decreases with an increase in osmolality.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Huan Yong, Yong Wu, Kai-wen Zhuang, Jing-xin Ji, Meng-meng Zhang, Zhe-sheng Feng, Yan Wang
Summary: This study aims to develop a novel self-healing polymer tantalum electrolytic capacitor with low ESR, high-frequency performance, and a simple preparation method. The incorporation of a copper layer into the capacitor structure significantly reduced the ESR and enhanced the DF. The use of a conductive polymer as the cathode layer provided self-healing characteristics and decreased the leakage current in the capacitor. The fabrication method also provided an inventive solution for integrating thin-film tantalum electrolytic capacitors onto active silicon substrates.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Zixiao Li, Qiang Zhou, Jie Liang, Longcheng Zhang, Xiaoya Fan, Donglin Zhao, Zhengwei Cai, Jun Li, Dongdong Zheng, Xun He, Yongsong Luo, Yan Wang, Binwu Ying, Hong Yan, Shengjun Sun, Jing Zhang, Abdulmohsen Ali Alshehri, Feng Gong, Yinyuan Zheng, Xuping Sun
Summary: This study reports the efficient catalysis of NO reduction to NH3 by oxygen-defective TiO2 nanoarray supported on Ti plate (TiO2-x/TP). In 0.2 m phosphate-buffered electrolyte, TiO2-x/TP shows competitive electrocatalytic activity for NH3 synthesis with high yield and Faradaic efficiency. The use of TiO2-x/TP in a Zn-NO battery also demonstrates high NH3 yield and peak power density.
Article
Chemistry, Multidisciplinary
Xiaoya Fan, Chaozhen Liu, Zixiao Li, Zhengwei Cai, Ling Ouyang, Zerong Li, Xun He, Yongsong Luo, Dongdong Zheng, Shengjun Sun, Yan Wang, Binwu Ying, Qian Liu, Asmaa Farouk, Mohamed S. S. Hamdy, Feng Gong, Xuping Sun, Yinyuan Zheng
Summary: This work presents a Pd-doped Co3O4 nanoarray on titanium mesh (Pd-Co3O4/TM) electrode for efficient electrocatalytic NO3-RR to NH3 production. The catalyst exhibits a large NH3 yield of 745.6 μmol h(-1) cm(-2) and a high Faradaic efficiency of 98.7% at -0.3 V with strong stability. The doping of Co3O4 with Pd improves the adsorption characteristics and optimizes the free energies for intermediates, enhancing the reaction kinetics. Additionally, the catalyst assembled in a Zn-NO3- battery achieves a power density of 3.9 mW cm(-2) and an excellent FE of 98.8% for NH3.
Article
Chemistry, Inorganic & Nuclear
Jie Chen, Xun He, Jun Li, Xiuhong Li, Zhengwei Cai, Yongsong Luo, Dongdong Zheng, Tingshuai Li, Yan Wang, Qian Liu, Shengjun Sun, Asmaa Farouk, Mohamed S. S. Hamdy, Xuping Sun, Binwu Ying
Summary: A high-performance catalyst for electrochemical nitrate reduction to ammonia is reported, which removes nitrate pollutants and converts them into economically valuable ammonia. The catalyst is a three-dimensional porous Co foam with nanosheet subunits supported on a Ti plate, constructed by hydrogen bubble template assisted electrodeposition, showing exceptional electrocatalytic performance.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Engineering, Electrical & Electronic
Hao-Wen Zhang, Xiao-Han Liao, Yang-Sheng Wang, Jian-Qiang Luo, Zhao-Quan Xu, Yuan-Ming Chen, Zhe-Sheng Feng, Yan Wang
Summary: This paper proposes a facile and cost-efficient fully printed method to fabricate p-type carbon nanotube field-effect transistor (CNTFET) on a flexible paper substrate. The method utilizes selective separation of polymer and stable dispersion of surfactant to create a mono-dispersion ink, which is applied using standard inkjet printers. The fabrication process combines roll-to-roll flexo printing and inkjet printing, resulting in high printing line accuracy and throughput. The fabricated transistors exhibit high on-off ratio and stable threshold voltage. This flexible and fully printed strategy provides a versatile approach for large-scale preparation of flexible integrated electronic devices.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(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)
