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
Environmental Sciences
Zhiruo Wu, Huimin Niu, Jinghuan Chen, Jianmeng Chen
Summary: The study demonstrates that the morphology, composition, and textual properties of CoNi-LDO catalysts can be controlled by tuning the post-synthetic etching reaction conditions. The CoNi-LDO-1 catalyst (Ni/Co molar ratio 0.39) with core-shell structure exhibits excellent activity towards toluene oxidation. This work provides a new strategy for designing high-performance oxidation catalysts for VOCs abatement.
Article
Engineering, Environmental
Huafang Li, Qi Pan, Jianxun Liu, Wei Liu, Qian Li, Liguo Wang, Zhongpeng Wang
Summary: In this study, a series of Pr6O11 catalysts were developed by CTAB-assisted coprecipitation method and their catalytic performances for soot oxidation and NOx adsorption were investigated. The Pr6O11 catalysts exhibited excellent catalytic activities for both soot oxidation and NOx adsorption at low temperature, which was attributed to their relatively large surface area, strong NO oxidation ability, and high intrinsic activity. The presence of NO was found to promote the soot oxidation, and the possible mechanism of the soot oxidation reaction process was explored using in situ DRIFTS.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Chemistry, Physical
Xiaohui Zhao, Mariano D. Susman, Jeffrey D. Rimer, Praveen Bollini
Summary: This study examines the complexity of metal oxide catalysts and the potential of faceted oxide crystals in developing more rigorous relationships between atomic-level structure and catalytic function. However, the use of faceted oxide crystals remains less prevalent compared to their metallic counterparts.
Article
Materials Science, Multidisciplinary
Silviu Polosan, Paul Ganea, Andrei Nitescu
Summary: Phosphate tellurite glasses were successfully synthesized by melt quenching, with a composition of 40%ZnO+40%P2O5+20%TeO2. Compared to glasses synthesized with H3PO4, those containing P2O5 showed greater chemical stability. Magneto-optical measurements revealed a specific transition associated with tellurium colloids, while densities and electrical conductivity increased with melting temperature.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Chemistry, Physical
Zhijie Yang, Linqin Mu, Dong Hou, Muhammad Mominur Rahman, Zhengrui Xu, Jue Liu, Dennis Nordlund, Cheng-Jun Sun, Xianghui Xiao, Feng Lin
Summary: This study investigates dopant distribution, phase propagation, and local chemical changes in multi-element-doped LiNiO2 materials using spectroscopic, imaging, and scattering techniques. Results show dynamic redistribution of dopants in the Ni(OH)(2) lattice during early stage calcination, allowing for targeted doping control. Ni oxidation exhibits depth-dependent characteristics, with heterogeneous phase propagation in the early stage of calcination.
ADVANCED ENERGY MATERIALS
(2021)
Article
Crystallography
Vadla Veenachary, Eskilla Venkata Ramana, Simhachalam Narendra Babu, Venkata Sreenivas Puli, Adiraj Srinivas, Gopalan Srinivasan, Sujoy Saha, Guduru Prasad, Nandiraju Venkata Prasad
Summary: In this study, intergrowth of multiferroic compounds Bi4RTi3Fe0.7Co0.3O15-Bi3RTi2Fe0.7Co0.3O12-delta (BRTFCO15-BRTFCO12) (rare earth (R) = Dy, Sm, La) were prepared using solid-state reaction method. The X-ray diffraction Rietveld refinement revealed orthorhombic structure with three-layered and four-layered compounds. Magnetic measurements showed that the Sm-modified intergrowth compound had a larger magnetization compared to Dy- and La-doped ones. The higher magnetization can be attributed to distortion in the unit cell, bonding of Fe3+-O-Co3+, and possible mixture of FexCoy-type nanoparticles formed during synthesis of intergrowths. The results demonstrate that the RE-modified intergrowth method is an effective approach for preparing higher-layer Aurivillius multiferroic ceramics.
Article
Materials Science, Ceramics
Monika Backhaus-Ricoult, Monique Comte, Eric Francois, Aram Rezikyan, Bryan Wheaton
Summary: Structural, chemical, and microstructural changes in lithium aluminum silicate glass during ceramming are studied using in-situ impedance spectroscopy, X-ray diffraction and transmission electron microscopy. The evolution of the glass' electric and dielectric properties during ceramming is observed. The study reveals that nuclei form by de-mixing and phase separation of the glass, leading to the development of distinct interfaces and ion mobility in the crystalline phase over time.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Amanda Guenther, Hilger Lohringer, Dirk Mueller, Elmar Schmidbauer, Christa Springsklee
Summary: Impedance spectroscopy was used to distinguish between bulk and grain boundary effects on polycrystalline VO2 samples near the metal-insulator transition temperature. While there is extensive literature on the electrical properties of VO2 thin films and nanowires, there is a lack of studies separating bulk and grain boundary effects. The structure of grain boundaries in polycrystalline samples is different from that in macroscopic samples, but provides valuable information on electrical conduction. Grain boundary processes in VO2 samples could be measured at room temperature to the transition temperature, while bulk properties and grain boundary conduction could only be studied at low temperatures.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Physics, Applied
C. B. Pan, G. C. Zhao, S. M. Li, X. L. Wang, J. M. Z. Wang, M. Tao, L. H. Yin, W. H. Song, X. B. Zhu, J. Yang, Y. P. Sun
Summary: The addition of B2O3 as a sintering aid at lower temperatures greatly enhances the ferroelectric, piezoelectric, and resistive properties of CaBi2Nb2O9 ceramics. This work is beneficial for the preparation of high-temperature piezoelectric ceramics with excellent electrical properties at a low sintering temperature.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Liping Zhong, Mathias Barreau, Valerie Caps, Vasiliki Papaefthimiou, Michael Haevecker, Detre Teschner, Walid Baaziz, Elisa Borfecchia, Luca Braglia, Spyridon Zafeiratos
Summary: The addition of vanadium can stabilize the active state of cobalt, enhancing the activity and stability of the COPrOx reaction. The active sites are mainly composed of a cobalt-vanadate surface layer, with the presence of V5+ and Co2+ ions helping to inhibit carbonate species formation.
Article
Materials Science, Multidisciplinary
H. F. Abosheiasha, Diaa-Eldin A. Mansour, M. A. Darwish, S. T. Assar
Summary: Until recently, multifunctional epoxy nanocomposites (MENCs) have attracted the attention of researchers due to their tunable properties. This study focuses on epoxy/Li0.5Al0.35Fe2.15O4/Al2O3 nanocomposites with varying Al2O3 content. The samples were characterized and it was found that increasing the Al2O3 nanofillers enhances thermal conductivity but decreases thermal stability. The samples also exhibit soft ferrimagnetic behavior. The study explains the interesting results of decreasing electrical conductivity and dielectric properties for the composite samples based on a dual interface nanolayer model.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
O. I. V'yunov, T. O. Plutenko, O. P. Fedorchuk, A. G. Belous, Ye. V. Lobko
Summary: Ceramic samples of Na-doped lithium lanthanum titanates were synthesized by solid-state reaction technique. The grain size of ceramics decreased with an increase in sodium concentration, and the sample with the largest dielectric constant value was La0.5Li0.4Na0.1TiO3.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Iqra Zubair Awan, Phuoc Hoang Ho, Giada Beltrami, Olinda Gimello, Thomas Cacciaguerra, Pierrick Gaudin, Nathalie Tanchoux, Stefania Albonetti, Annalisa Martucci, Fabrizio Cavani, Didier Tichit, Francesco Di Renzo
Summary: Ethanol is used as a renewable hydrogen-donor for the conversion of a lignin model molecule. Noble metal-free porous mixed oxides derived from Cu-Ni-Al and Cu-Ni-Fe layered double hydroxide (LDH) precursors act as heterogeneous catalysts for the hydrogen transfer and hydrogenation reactions. The activity and selectivity of the catalysts are influenced by the Cu/(Cu+Ni) ratio and the trivalent cation (Al or Fe), as well as the cleavage of lignin-like phenylether bonds. The composition of the LDH precursors has a significant impact on the structural and textural properties of the catalysts.
Article
Chemistry, Physical
Yingwen Cao, Chunsheng Guo, Dongting Wu, Yong Zou
Summary: Solid solutions Ti-3(Al1-xSix)C-2 were successfully fabricated by hot pressing with the powder mixture Ti/Al/TiC/Si. The addition of Si increased hardness and inhibited corrosion. The increase in Si content in the passive films enhanced corrosion resistance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Energy & Fuels
Bingyu Lei, Neil Robertson
Summary: A new method for the immobilization of TiO2 mesocrystals has been developed in this study. The immobilized TiO2 possesses high dye pickup capability and optimal electron transport ability, making it suitable for dye-sensitized solar cells.
Article
Chemistry, Physical
Bingyu Lei, Lisette Warren, Carole Morrison, Gwilherm Kerherve, William S. J. Skinner, David J. Payne, Neil Robertson
Summary: Ammonium fluoroxotitanates, such as NH4TiOF3 and (NH4)2TiOF4, are considered as topotactic synthetic precursors of the functional semiconductor anatase TiO2. However, their properties and potential applications have not been thoroughly studied. In this work, NH4TiOF3 and (NH4)2TiOF4 were experimentally and computationally characterized, and their electronic structures were found to be consistent. Furthermore, immobilized NH4TiOF3 exhibited promising photocatalytic activity in UV dye degradation.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Computer Science, Information Systems
Edwin Acosta, Vladimir Smirnov, Peter S. B. Szabo, Christian Pillajo, Erick De la Cadena, Nick S. Bennett
Summary: This study investigates the impact of stress on the thermoelectric properties of hydrogenated microcrystalline silicon thin films. The results show that tensile stress increases conductivity while compression stress improves the Seebeck coefficient of electron-doped films. However, elevated temperature reduces the mechanical stability and has minimal effect on the overall thermoelectric power factor.
Article
Chemistry, Physical
Ying Yuan, Neil Robertson
Summary: Recent studies have focused on improving the efficiency of Ag3BiI6 solar cells, but most have overlooked cost-effectiveness and scalability. This study explores the feasibility of Ag3BiI6 in fully-printable triple-mesoscopic solar cells and investigates the effect of pre-treatment and post-treatment on their performance. The results show a potential for developing all inorganic Bi-based absorbers in printable solar cells.
SUSTAINABLE ENERGY & FUELS
(2023)
Article
Chemistry, Physical
Bingyu Lei, Neil Robertson
Summary: The immobilised TiO2 mesocrystals were prepared on sanded glass substrates via a solution synthesis of immobilised precursor, followed by a thermal treatment triggering a topotactic conversion reaction. The obtained mesocrystals possessed anatase nanoparticles with high surface area and co-exposed {10 1}/{0 0 1} facets, as well as large overall particle size and strong binding to the substrate inherited from the immobilised precursor. These unique structural features make the material a promising candidate as a highly efficient and separable photocatalyst. The thermal treatment parameters were also shown to be crucial for adjusting the structural or surface properties and thus the photocatalytic performance of the immobilised TiO2 mesocrystals.
APPLIED SURFACE SCIENCE
(2023)
Article
Energy & Fuels
Nick S. Bennett, Brian Lim
Summary: Future small satellites require high-performance on-board electronics and advanced heat rejection approaches. Increasing the surface temperature of the radiator using a heat pump is a promising alternative method. This study investigates the potential reduction in radiator size by incorporating a typical vapor compression cycle (VCC) heat pump in a satellite's thermal management system.
Article
Chemistry, Multidisciplinary
Nick S. Bennett, Amer Hawchar, Aidan Cowley
Summary: This study explores the feasibility of using thermoelectric devices for thermal control in CubeSat onboard electronics. A simple thermoelectric architecture is proposed and an empirical model is constructed based on the performance data of a commercially available module. The study calculates the temperature that the system can cool a computer chip to, taking into consideration thermal resistance and heat rejection. The analysis shows that while thermoelectric cooling can be beneficial in some scenarios, it may actually increase the temperature of the electronics being cooled in certain circumstances, especially when there is a high thermal resistance or heat being removed. Furthermore, the need for a high-quality radiator may limit the potential benefits of thermoelectric devices in many cases.
APPLIED SCIENCES-BASEL
(2023)
Review
Green & Sustainable Science & Technology
Fadi Alsouda, Nick S. Bennett, Suvash C. Saha, Fatemeh Salehi, Mohammad S. Islam
Summary: Air conditioning and refrigeration are essential in modern life and contribute over 7.8% to global greenhouse gas emissions. Reducing their environmental impact is crucial for meeting global emission targets and can be done by looking at less harmful refrigerants and improving system efficiency. This study presents the latest developments in the vapor compression cycle and natural refrigerants, with a focus on water as a refrigerant. Natural refrigerants, especially water, could be the ultimate solution to the environmental problems associated with cooling systems.
CLEAN TECHNOLOGIES
(2023)
Article
Electrochemistry
Franziska Bossl, Valentin C. Menzel, Karina Jeronimo, Ayushi Arora, Yishu Zhang, Tim P. Comyn, Peter Cowin, Caroline Kirk, Neil Robertson, Ignacio Tudela
Summary: The present study aims to explore the controversial debate on the "true" mechanism behind piezo-electrocatalysis, whether it is energy band theory or screening charge effects. For this purpose, piezo-electrocatalysts made of three different materials, ZnO, BaTiO3, and BF-KBT-PT, with different energy band levels and piezoelectric properties, were used to degrade Rhodamine B in aqueous solutions using combined ultrasound and mechanical agitation as the excitation method. The results suggest that both mechanisms may play an important role in the overall process, as the piezo-electrocatalyst most likely to generate radicals via both piezo-electrocatalytic mechanisms achieved the highest overall dye degradation.
ELECTROCHIMICA ACTA
(2023)
Article
Energy & Fuels
Puchanee Larpruenrudee, Doan Khai Do, Nick S. Bennett, Suvash C. Saha, Mohammad Ghalambaz, Mohammad S. Islam
Summary: Spray cooling technology offers efficient heat removal with low fluid volumes, and its application can be expanded with the help of research. This study investigates the impact of temperature and humidity conditions on spray cooling performance in six Australian cities, revealing that weather conditions, especially in summer, significantly influence the effectiveness of spray cooling.
Article
Chemistry, Analytical
Tiana Cristina Majcan, Solomon Ould, Nick S. Bennett
Summary: The Internet of Remote Things (IoRT) provides an exciting platform for the development and deployment of wireless sensing nodes. This study focuses on measuring the energy requirements of various sensor modules for Arduino and other microcontroller units. The results showed differences in power consumption values between datasheets and experimental measurements, and also highlighted the impact of sensor types and output readings on power consumption.
Article
Energy & Fuels
Puchanee Larpruenrudee, Nick S. Bennett, Zhen Luo, Robert Fitch, Emilie Sauret, Mohammad S. Islam
Summary: Metal hydrides show great potential in hydrogen storage due to their large capacity and safety. However, their slow absorption rate poses a challenge. This study proposes a heat exchanger structure to improve the heat transfer rate and reduce absorption time. Numerical simulations demonstrate that the modified heat exchanger configuration significantly enhances the absorption reaction, offering improved heat exchange for MH storage applications.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Neena Kurian Kalluvettukuzhy, Michal Robert Maciejczyk, Ian Underwood, Neil Robertson
Summary: The aesthetics of solar cells have become increasingly important in recent years, with a trend towards implementing PV modules without aesthetic constraints. However, this has had negative consequences on cost and performance. In this study, we have developed a technical approach using luminescence down shifting (LDS) materials to fabricate brightly coloured, visually appealing solar cells and panels without compromising efficiency. This cost-effective method allows for the development of customizable solar cells with artistic designs, making them easily replaceable and suitable for various applications such as product-integrated photovoltaics, communication, and automotive use.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Ellie Tanaka, Gyu Min Kim, Michal R. Maciejczyk, Ayumi Ishii, Gary S. Nichol, Tsutomu Miyasaka, Neil Robertson
Summary: Hole transport materials (HTMs) based on truxene cores have shown promising properties as candidates for use in perovskite solar cells (PSCs). In this study, a novel HTM named TrxS-2MeOTAD was synthesized and characterized for its suitability in n-i-p planar PSCs. The TrxS-2MeOTAD showed suitable properties and achieved a power conversion efficiency (PCE) of 18.9% in the PSCs.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Artit Jarusarunchai, Xuan Liu, Wenjun Wu, Neil Robertson
Summary: A new series of dyes called T-CPDT was designed and synthesized, with optimized optical and photovoltaic properties for application in DSSC devices, showing improved efficiency compared to other dyes.
SUSTAINABLE ENERGY & FUELS
(2022)
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)
