Article
Chemistry, Multidisciplinary
Xin An, Guannan Xing, Jing Wang, Yanhong Tian, Yunfang Liu, Qiong Wan
Summary: The study focused on the activation of carbon spheres synthesized by ultrasonic-spray pyrolysis method for supercapacitor electrodes. The specific capacitance of the activated carbon spheres increases with activation temperature and activator dosage, reaching a maximum under certain conditions and exhibiting excellent cycling stability. The samples activated at lower temperature showed the highest specific capacitance, while samples activated at higher temperature contained graphene sheets and had low series resistance in the electrodes.
Article
Materials Science, Multidisciplinary
Achintya Dutta, Akhil Bonagiri, Aditya Nirmale, Ramakrishna Nayak, M. Selvakumar, Shounak De, Vinod Kamath, Prakasha Shetty
Summary: The effects of thermal annealing on screen-printed NiO electrodes for asymmetric battery-type supercapacitors on flexible substrates were investigated. Six morphologically diverse NiO samples were obtained by synthesizing and annealing Ni(OH)2 at different temperatures. The NiO annealed at 400 degrees C demonstrated the highest areal capacitance of 19.54 mF/cm2 and reduced charge-transfer resistance, which was consistent with its highly porous yet continuous structure. An inter-digital asymmetric supercapacitor with NiO-400 cathode and graphene anode exhibited high areal capacitance of 26.42 mF/cm2, a wide potential window of 1.5 V (at 97.3% coulombic efficiency), and excellent flexibility with 96.4% retention (180 degrees) after 1000 cycles.
Article
Chemistry, Multidisciplinary
Bony Thomas, Mohini Sain, Kristiina Oksman
Summary: Different types of lignins used for carbon particle production at varying carbonization temperatures showed specific characteristics, with soda lignin exhibiting higher degree of graphitization and electrical conductivity at 1400 degrees C, suitable for various applications, while kraft lignin showed the highest BET surface area at 1400 degrees C, making it a good candidate for energy storage applications.
Article
Energy & Fuels
Dongyao Zhang, Chuanchang Li, Niangzhi Lin, Baoshan Xie, Jian Chen
Summary: Composite phase change materials were synthesized from KH-550-decorated mica and poly-ethylene glycol by vacuum impregnation method, with the addition of expanded graphite to improve thermal conductivity and storage capacity. The Md/EG/PEG composite showed enhanced thermal stability and potential for energy conservation in buildings.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Zi-Yang Fu, Yi-Chi Zhang, Ling Li, Xiao-Juan He, Xiao-Yu Zhang, Ji Zhang, Zheng-Bin Gu, Shan-Tao Zhang
Summary: Constructing composite structures with (1-x)PLZST:xSnO(2) resulted in significant changes in microstructures and properties, leading to improved energy storage density.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Electrical & Electronic
Shangtao Zhang, Jian Wang, Rong Wu, Boting Pan, Lang Liu, Chunhai Liu
Summary: Transition metal nitrides, specifically zirconium nitride (ZrN) thin films, were fabricated using reactive direct-current (DC) magnetron sputtering and their morphology and electrochemical capacitive performance as electrode materials for supercapacitors were investigated. The films exhibited a continuous and homogeneous structure with a fine columnar morphology. The T3 film electrode showed the highest areal specific capacitance of 1.19 mF cm(-2) at a current density of 0.05 mA cm(-2) due to its higher porosity, better wettability, and lower charge transfer resistance.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Energy & Fuels
Assia Tounsi, Abdelfetteh Sayah, Leila Lamiri, Noureddine Boumaza, Farid Habelhames, Ahmed Bahloul, Chouaib Chenni, Belkacem Nessark, Mohammad Alam Saeed
Summary: The FTO/MnO2-Graphene composite was prepared using a one-step electrochemical approach and the resulting film exhibited a unique structure with a large surface area, making it suitable for various applications including supercapacitor electrodes and energy storage devices.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Materials Science, Ceramics
Huihuang Xu, Hua Hao, Dongxu Li, Yanjiang Xie, Xin Wang, Jianlu Geng, Minghe Cao, Zhonghua Yao, Hanxing Liu
Summary: This study proposes a method for improving the dielectric breakdown strength and energy storage performance of dielectric capacitors by reducing the annealing temperature and introducing a high-polarized substance. The microstructure with nanocrystalline and amorphous phases was successfully controlled, leading to extremely high breakdown strength and excellent energy storage performance. This provides a feasible approach for designing high-performance energy storage devices in the future.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Xiaofeng Qin, Heng Wu, Chunyan Chen, Hong Ao, Wenchuan Li, Rongli Gao, Wei Cai, Gang Chen, Xiaoling Deng, Zhenhua Wang, Xiang Lei, Chunlin Fu
Summary: PLZT@SiO2 ceramics were prepared by combining sol-gel and Stober methods, with the addition of SiO2 improving energy storage characteristics. The presence of SiO2 weakened crystallinity and restricted grain growth, while an optimal SiO2 concentration led to enhanced energy storage performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Ahmed Aliyu, Chandan Srivastava
Summary: The addition of graphene oxide in FeNiCoCu medium entropy alloy coatings significantly changes the microstructure, leading to improved corrosion resistance attributed to enhanced uniformity, grains compactness, impermeability of GO, and formation of a protective Fe-oxide layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
L. Aguilera, C. S. Ferreira, Y. Leyet, J. Perez de la Cruz, R. R. Passos, L. A. Pocrifka
Summary: In this work, the influence of composition on the charge storage properties of Ni-Co-Sn ternary composite was investigated. It was found that a higher nickel content favored a higher specific capacity, and the capacitance retention varied between 76-87% over 1000 cycles under different synthesis conditions. Electrochemical techniques were used for evaluation, revealing different relaxation time constant values for compositions containing different metals.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
JinKiong Ling, Chelladurai Karuppiah, M. Reddy, Bhupender Pal, Chun-Chen Yang, Rajan Jose
Summary: The study investigates the effect of Sn/Ti ratio on the electrochemical properties of anodes synthesized using a pilot-scale electrospinning system. It is found that increasing Sn content leads to a lowering of electrochemical potential and an enhanced capacity. However, the formation of SnO2 grains in samples with high Sn content negatively impacts cycling stability.
JOURNAL OF MATERIALS RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Qi Zhang, Yinlei Li, Jun Song, XueLing Zhang, Xuehong Wu, Chongyang Liu, Yanfang Li
Summary: In this study, the eutectic salt of NH4Al(SO4)(2)center dot 12H(2)O (AASD) and MgSO4 center dot 7H(2)O (MSH) was prepared and investigated for its thermal properties. The optimal content of AASD in the binary eutectic salt was determined to be 55 wt%, with a melting point of 76.4℃ and a latent heat of 189.4 J g(-1). Nucleating and thickening agents were added to improve the supercooling of the mixture, and the best combination was found to be 2.0 wt% KAl(SO4)(2)center dot 12H(2)O/1.0 wt% sodium alginate, with a supercooling degree of 24.3℃. After thermal cycling tests, the best formulation for the AASD-MSH eutectic salt phase change material was determined to be 1.0 wt% CaCl2 center dot 2H(2)O/1.0 wt% soluble starch, with a latent heat of 176.4 J g(-1) and a melting point of 76.3℃.
Review
Chemistry, Physical
Yiming Liu, Swagata Roy, Samrat Sarkar, Jiaqiang Xu, Yufeng Zhao, Jiujun Zhang
Summary: This paper comprehensively reviews the synthesis methods and applications of various categories of CDs and their composites as electrode materials and electrocatalysts. The roles and functional mechanisms of CDs in enhancing electrochemical performance are still unclear and need further research. Research on CDs and their composite materials shows potential for development in various battery and catalytic applications.
Article
Chemistry, Inorganic & Nuclear
S. Nivetha, S. Prabahar, R. T. Karunakaran, M. Narendhera Ganth, S. Dhinesh
Summary: Transition metal phosphates have attracted attention in energy storage applications due to their good performance, and Fe-doped Ni2P2O7 thin films show promising potential as electrode materials for supercapacitor applications, with high specific capacitance.
INORGANIC CHEMISTRY COMMUNICATIONS
(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)