Article
Chemistry, Physical
Ritesh Verma, Ankush Chauhan, Khalid Mujasam Batoo, Muhammad Hadi, Emad H. Raslan, Rajesh Kumar, Muhammad Farzik Ijaz, Abdulaziz K. Assaifan
Summary: The synthesis of vanadium-doped BCZT ceramic oxides was reported in this paper, confirming the existence of a solubility limit of V in BCZT ceramics. Analysis revealed the influence of crystal structure and formation of oxygen vacancies on the luminescence and electrical properties of the material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Inorganic & Nuclear
S. Kabadou, J. Horcheni, F. Mselmi, A. Kabadou, E. Dhahri, L. Bessais
Summary: The polycrystalline ZrTe3O8:2%Er, 3%Mn material was prepared using solid-state reaction technique, and it exhibited a cubic phase structure with two types of polyhedrons. The Raman spectrum revealed the asymmetric stretching vibration of the Te-O-2-Zr bridges, and the magnetic results showed weak ferromagnetic behavior at low temperature. Additionally, the ZrTe3O8:2%Er, 3%Mn material showed significant emission in the visible and near-infrared range when excited at 490 nm, making it suitable for W-LED applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Shafaq Arif, Nimra, Natasha Bano, Madeeha Riaz, M. S. Anwar
Summary: The influence of magnesium substitution for calcium on the structural and dielectric properties of 46.1SiO(2)-26.9CaO-24.4Na(2)O-2.6P(2)O(5) (45S5) ceramic was investigated. X-ray diffraction analysis confirmed the presence of major phase of combeite in the ceramics, with the identification of forsterite phase and minor peaks of sodium magnesium silicate with increasing magnesium substitution. Changes in crystallite size and microstrain induced by magnesium doping were analyzed. Dielectric measurements revealed an increase in dielectric constant and ac conductivity with 50 mol % magnesium substitution for calcium.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
Yogesh Kumar, S. Tripathi, Mangla Nand, R. Jangir, V. Srihari, A. Das, R. Singh, U. Deshpande, S. N. Jha, A. Arya
Summary: This study investigated the effect of Nd doping on the structural, optical, and electronic properties of lanthanum monazite structure. Pure and Nd-doped LaPO4 powders were prepared and analyzed for their composition, oxidation states, crystal structure, and bandgaps. The results confirmed the successful substitution of Nd in the LaPO4 matrix and provided insights into the local structure using extended X-ray absorption fine structure analysis.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Dmitry Bocharov, Andrei Chesnokov, George Chikvaidze, Jevgenijs Gabrusenoks, Reinis Ignatans, Robert Kalendarev, Matthias Krack, Karlis Kundzins, Alexei Kuzmin, Nina Mironova-Ulmane, Inga Pudza, Laurits Puust, Ilmo Sildos, Evgeni Vasil'chenko, Martins Zubkins, Juris Purans
Summary: The nanocrystalline zinc peroxide (nano-ZnO2) was synthesized via a hydrothermal process and thoroughly studied using various experimental techniques. The crystal structure, band gap, lattice dynamics, and stability of nano-ZnO2 were investigated, and the results were supported by first-principles density functional theory (DFT) calculations.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Chemistry, Physical
P. Palaniappan, N. Lenin, R. Uvarani
Summary: A sonochemical reactor was used to synthesize Mn1-xCuxLa0.1Fe1.9O4 nanoferrites with different compositions, and their magnetic, electrical, and structural properties were investigated. The results showed that the crystalline structure and size of the nanoferrites were influenced by the Cu2+ content. The nanoferrites exhibited pseudocapacitance, resistive behavior, and soft ferromagnetic behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
M. G. Granados-Fitch, J. M. Quintana-Melgoza, E. A. Juarez-Arellano, M. Avalos-Borja
Summary: This study reports on the mechanosynthesis of Re3B and ReB2 as catalysts for hydrogen production from coconut shell pyrolysis at temperatures ranging from 500 to 800 degrees C. Re3B exhibited the highest catalytic activity for hydrogen production at 800 degrees C and 10 wt % of catalyst, achieving a hydrogen yield of 77.4% under optimal conditions. The characterization of Re3B and ReB2 using TPR and FTIR allowed for the proposal of a scheme for molecular hydrogen formation based on thermodynamics analysis and hydrogen production data.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Chemistry, Physical
K. Frolov, I. S. Lyubutin, O. A. Alekseeva, E. S. Smirnova, A. P. Dudka, I. A. Verin, V. L. Temerov, I. A. Gudim
Summary: The results of Fe-57 Mossbauer spectroscopy and single crystal X-ray diffraction measurements reveal the structural characteristics and magnetic phase transition temperature of NdFe3(BO3)(4). The study shows negative thermal expansion and structural anomalies in the crystal cell parameters over a wide temperature range, which are well correlated with the Mossbauer parameters in the paramagnetic state. The magnetic transition from a commensurate to an incommensurate structure in the iron subsystem at a lower temperature is also discussed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Vikas, M. S. Dahiya, Ashima Hooda, Satish Khasa
Summary: Transition Metal Ion (TMI) doped barium-boro-bismuthate glasses were synthesized using melt quench technique. The physical and structural behavior of the synthesized and annealed compositions were analyzed. The results showed that the density of the glass samples increased with the increase in MoO3 concentration, while the concentration of Non-Bridging Oxygen (NBO) decreased. The microstructure analysis using FESEM/EDX technique confirmed the crystalline growth in the annealed samples.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
Khalid Mujasam Batoo, Ritesh Verma, Ankush Chauhan, Rajesh Kumar, Muhammad Hadi, Omar M. Aldossary, Y. Al-Douri
Summary: This study reported the synthesis of Gd and Nb co-doped BT ceramic oxides and investigated their structural and electrical properties. Various analysis techniques were used to characterize the samples, revealing the influence of Gd and Nb doping on the electrical properties of the ceramic materials, which were found to improve with increasing dopant concentration.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Inorganic & Nuclear
Sirine El Arni, Oumayma Rguig, Mohammed Hadouchi, Abderrazzak Assani, Mohamed Saadi, Abdelilah Lahmar, Houssny Bouyanfif, Mimoun El Marssi, Lahcen El Ammari
Summary: The CoInOPO4 compound was synthesized using the sol-gel method and its crystal structure was determined using powder X-ray diffraction data and Rietveld method. The structure of this phosphate consists of a three-dimensional network built up from (Co(2)/In(2))O6 octahedra, (In(1)/Co(1))O5 square pyramid, and PO4 tetrahedra. Infrared and Raman spectroscopy were used to analyze the structural information, and magnetic investigation revealed that the dominating interactions in this phosphate are antiferromagnetic.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Materials Science, Ceramics
G. Krishna Priya, S. Yusub, A. Ramesh Babu, N. Sree Ram, K. Rama Krishna, V Aruna
Summary: A multi-component glass system 65B(2)O(3)-20Bi(2)O(3)-10Al(2)O(3)-(5-x)MgO-xCuO was fabricated using the melt quench mechanism. X-ray diffraction confirmed the amorphous nature of the specimens, while Fourier transform infrared studies revealed bands associated with borate and bismuth groups. The optical band gap of the glasses decreased gradually with an increase in CuO content, and the sample doped with 1 mol% CuO showed the highest conductivity in dielectric studies.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Chemistry, Physical
Subarna Datta, Shovan Dan, Shuvankar Gupta, Sudip Chakraborty, Chandan Mazumdar
Summary: The detailed X-ray diffraction studies of rare-earth based compounds Nd2Fe17-xCrx revealed a negligible thermal expansion coefficient in the Nd2Fe16.5Cr0.5 compound, indicating a potential for zero thermal expansion magnetic systems. The critical analysis showed that all four samples belong to different types of universal magnetic class.
Article
Materials Science, Multidisciplinary
Joao Pedro Lemos Morais, Douglas Viana Bernardino, Beatriz da Silva Batista, Walajhone Oliveira Pereira, Filipe Miguel Borges Amaral, Marcelo Cristiano Meneses Pedra Branca, Fabiano Perin Gasparin, Adenilson Oliveira dos Santos, Antonio Sergio Bezerra Sombra, Fernando Mendes, Ana Angelica Mathias Macedo
Summary: Polyaniline (PAni) is a semiconductor polymer that can be used as a biosensor for glucose measurement. In this study, a blend of polyaniline and galactomannan (Gal) was used to address the issues of enzyme leaching and high dielectric constant. The blended material showed improved electrical behavior and potential for use in biosensors.
Article
Spectroscopy
Javier Garcia-Tojal, Eneko Iriarte, Susana Palmero, Maria R. Pedrosa, Carlos Rad, Silvia Sanllorente, Maria Cruz Zuluaga, Monica Cavia-Saiz, Dolores Rivero-Perez, Pilar Muniz
Summary: Kaolinite-rich Cretaceous clay sediment samples from Burgos, Spain were analyzed using various techniques, revealing the presence of quartz, muscovite, and kaolinite, as well as different radicals. A proposed illite/kaolinite FTIR band ratio parameter (1KB) can help infer the illite/kaolinite proportion and visualize iron-substituted Al(III) sites. Studies on the activity as scavengers of DPPH and ABTS radicals showed that samples with more orthorhombic Fe(III) ions replacing Al(III) ions exhibited a higher antioxidant capacity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Materials Science, Biomaterials
Debendra Prasad Panda, Akash Kumar Singh, Tapas K. Kundu, A. Sundaresan
Summary: Rare-earth ion-activated oxide phosphors with sharp luminescent transitions show promising potential for bioimaging applications due to their high emission intensity and low cytotoxicity.
JOURNAL OF MATERIALS CHEMISTRY B
(2022)
Article
Chemistry, Multidisciplinary
Bharti Singh, Madhulika Mazumder, Balendra, Athinarayanan Sundaresan, Swapan K. Pati, Arunachalam Ramanan
Summary: Three new isostructural manganese coordination polymers have been successfully crystallized, and their crystal structures and packing modes have been investigated. The magnetic exchange coupling was found to be strongly correlated with the packing of the layers.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Physics, Applied
Soumen Ash, Moumita Naskar, Ravi P. N. Shankar, Nityasagar Jena, A. Sundaresan, Ashok Kumar Ganguli
Summary: We conducted a detailed study on the superconductivity of polycrystalline SnTaS2 using electrical transport, magnetization, and heat capacity measurements. Our results suggest that SnTaS2 is a weakly coupled, type-II superconductor with a critical temperature of approximately 2.8 K. First-principles calculations reveal the presence of nodal line topology in the electronic band structure, which is protected by spatial-inversion and time-reversal symmetries but strongly suppressed by spin-orbit coupling. This makes layered SnTaS2 with nodal line topological state a strong candidate for a 3D topological superconductor.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Debendra Prasad Panda, Diptikanta Swain, Rohit Kumar Rohj, D. D. Sarma, A. Sundaresan
Summary: Organic-inorganic hybrid (OIH) halide perovskite is a promising material in the field of semiconductors, and efforts have been made to design new lead-free OIH halides for optoelectronic applications. We have synthesized a perovskitoid compound and an antiperovskite compound with unique structures and properties. The perovskitoid compound displays switchable dielectric property, while the antiperovskite compound exhibits higher photoluminescence quantum yield and magnetic properties. This structure-property relationship in OIH manganese halides will contribute to the design of new perovskites and antiperovskites.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Debendra Prasad Panda, Diptikanta Swain, Sounak Sarkar, A. Sundaresan
Summary: In this study, two organic-inorganic hybrid halides were synthesized and the role of halogen bonding was revealed. The first compound showed a unique type-II halogen bonding between organic and inorganic ions, leading to structural changes and modulation of photophysical properties. The second compound demonstrated dual-band emission, possibly due to energy transfer from the organic amine to Mn centers. The role of halogen bonding was explored through quantitative electron density analysis and intermolecular interaction energies.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Tanya Berry, Nicodemos Varnava, Dominic H. Ryan, Veronica J. Stewart, Riho Rasta, Ivo Heinmaa, Nitesh Kumar, Walter Schnelle, Rishi Bhandia, Christopher M. Pasco, N. P. Armitage, Raivo Stern, Claudia Felser, David Vanderbilt, Tyrel M. McQueen
Summary: Electrons in solids adopt complex patterns of chemical bonding driven by energy gains and costs. We report a chemical pressure-driven transition in EuMn2P2 from proper Mn magnetic ordering to a Mn magnetic phase crossover, despite remaining an insulator at all temperatures. The absence of a Mn magnetic phase transition contrasts with other isoelectronic materials. Our results demonstrate the sensitivity of the band structure to magnetic order and imply the suppression of long-range Mn magnetic order by chemical pressure.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Inorganic & Nuclear
Rahul Kumar, A. Sundaresan
Summary: Type-II multiferroics often have lower polarization values than Type-I multiferroics, which requires the use of pyrocurrent measurements. However, this method becomes inadequate when faster dipole relaxation and thermally stimulated free charge carriers overshadow the magnitude of the pyrocurrent. This study demonstrates the effectiveness of the DC bias current technique in overcoming this limitation and characterizing type-II multiferroic materials with small polarization.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2023)
Article
Multidisciplinary Sciences
Chunyu Guo, A. Alexandradinata, Carsten Putzke, Amelia Estry, Teng Tu, Nitesh Kumar, Feng-Ren Fan, Shengnan Zhang, Quansheng Wu, Oleg V. Yazyev, Kent R. Shirer, Maja D. Bachmann, Hailin Peng, Eric D. Bauer, Filip Ronning, Yan Sun, Chandra Shekhar, Claudia Felser, Philip J. W. Moll
NATURE COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Debendra Prasad Panda, Diptikanta Swain, Sundaresan Athinarayanan
Summary: Efforts have been made to design multifunctional lead-free organic-inorganic hybrid (OIH) halide compounds, which are considered as next-generation solar cell materials. However, it is challenging to design OIH halides that exhibit both long-range magnetic ordering and high photoluminescence quantum yield (PLQY) due to the contrasting effect of the compounds' dimensionality. In this study, we demonstrated an approach to enhance PLQY in two-dimensional (2D) Heisenberg antiferromagnets by increasing the alkylene chain length of [H3N-(CH2)(m)-NH3]MnCl4 compounds. These compounds showed long-range antiferromagnetic ordering and an increase in PLQY with increasing spacer cation length. The findings provide insight into the design of new OIH halides with desirable magnetic ordering and PLQY.
Article
Materials Science, Multidisciplinary
Souvik Banerjee, Debendra Prasad Panda, Premakumar Yanda, A. Sundaresan
Summary: We conducted a comprehensive and comparative study on the structural, static, dynamic, and nonequilibrium magnetic properties of the polymorphs of LiFeSnO4. It was found that LiFeSnO4 exhibits two polymorphs, an orthorhombic phase (HT) and a hexagonal phase (LT), which differ in their crystal structures and magnetic properties. Both polymorphs show spin glass behavior and the presence of an exchange bias effect due to magnetic inhomogeneity.
PHYSICAL REVIEW MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Krishna Manna, Rahul Kumar, Athinarayanan Sundaresan, Srinivasan Natarajan
Summary: New Cu MOFs show polymorphism and have the ability to fix CO2 to cyclic carbonates. They also exhibit Lewis acid catalysis, Lewis base catalysis, and interesting magnetic behavior. The compounds were prepared using different ligands and different reaction conditions, resulting in various structure dimensionalities. The Cu center in the compounds was explored for different catalytic reactions, showing good yields and recyclability. Magnetic studies revealed antiferromagnetic or ferromagnetic interactions in different compounds. This research demonstrates the diversity of copper-containing compounds in extended framework structures.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Debendra Prasad Panda, Diptikanta Swain, Rajamani Raghunathan, A. Sundaresan
Summary: In this study, a newly synthesized lead-free organic-inorganic hybrid compound with one-dimensional chain structure is investigated. The compound exhibits interesting magnetic and photoluminescence properties, including long-range antiferromagnetic ordering and low-dimensional magnetic susceptibility hump. Additionally, the compound displays orange-red emission and shows evidence of electron-phonon coupling.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Physics, Multidisciplinary
S. Athira, Saulo L. L. Silva, Probal Nag, Sushma Lakshmi, C. Sharath Kumar, Debendra Prasad Panda, Sayan Das, Sarita Rajput, Andrews P. Alex, A. Sundaresan, Sivaranjana Reddy Vennapusa, T. Maitra, D. Jaiswal-Nagar
Summary: In this paper, the authors used the distance between the states as a theoretical measure to determine the bipartite entanglement in a one-dimensional magnetic dimer system. The calculation was compared with the concurrence, a well-known entanglement measure, and found to be the same. Experimental verification was done on single crystals of copper acetate, showing the existence of bipartite entanglement even at room temperature. Characterization and calculations revealed the weak intermolecular interactions and low probability of direct Cu-Cu exchange in copper acetate.
NEW JOURNAL OF PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Arkadeb Pal, T. W. Yen, T. W. Kuo, C. W. Wang, S. M. Huang, M. C. Chou, Y. C. Lai, Y. C. Chuang, P. Yanda, A. Sundaresan, H. S. Kunwar, V. G. Sathe, Ajay Tiwari, D. Chandrasekhar Kakarla, H. D. Yang
Summary: We report the unconventional and interesting multiferroic behavior of a layered noncentrosymmetric ferrimagnetic spin-1/2 system Bi2Cu5B4O14. Neutron powder-diffraction study reveals a robust ferrimagnetic (up arrow down arrow down arrow down arrow down arrow) ordering below TC = 25 K, which remains unaffected even under a high magnetic field of H = 10 T. Interestingly, two successive ferroelectric transitions are observed, one triggered by the magnetostriction effect at TC = TE2 = 25 K and another caused by a structural distortion at TE1 = 32 K.
Article
Materials Science, Multidisciplinary
Rahul Kumar, A. Sundaresan
Summary: In this paper, the field-induced ferroelectricity in BaHoFeO4 within a narrow range of applied magnetic fields (1.5 T H 5 T) is reported. Magnetization measurements reveal magnetic anomalies at TFe ordering of Fe3+, a possible spin structure change of Fe3+, and the antiferromagnetic ordering of Ho3+ sublattices. Heat capacity data did not show any anomaly at TNFe, but exhibited a broad N . Isothermal magnetization measurements indicate a metamagnetic transition at 1.5 T below 40 K. Temperature-dependent dielectric measurements below 1 T reveal two anomalies corresponding to Ho3+ ordering and a possible change in the magnetic phase of the Fe sublattice. These anomalies disappear at higher magnetic fields, and a different dielectric anomaly appears above the metamagnetic transition. A switchable electric polarization appears below 25 K and above the metamagnetic transition field (H 1.5 T), but disappears above 5 T.
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)
