Article
Chemistry, Physical
Praphatsorn Plerdsranoy, Bunrat Tharat, Sophida Thiangviriya, Pinit Kidkhunthod, Theeranun Siritanon, Suwit Suthirakun, Rapee Utke
Summary: This work aims to optimize the Ni substitution in Mg2FeH6 and form the quaternary intermetallic hydrides of Mg2Fe(1-x)NixH6 with the best kinetics and reversibility. The degree of Ni substitution is enhanced by increasing the Mg2NiH4 content, resulting in improved dehydrogenation kinetics and reversible hydrogen capacities. The structures and dehydrogenation energies of Mg2Fe(1-x)NixH6 with different Ni-substituted contents are simulated and calculated to explain the role of Ni substitution.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Nurul Yasmeen Yusnizam, Nurul Amirah Ali, Noratiqah Sazelee, Mohammad Ismail
Summary: This research aims to investigate the effect of adding titanium silicate (TiSiO4) on the dehydrogenation behavior of lithium alanate (LiAlH4). The addition of 10 wt% TiSiO4 resulted in lower dehydrogenation temperatures for LiAlH4, with the first-step reaction occurring at 92 degrees C and the second-step reaction at 128 degrees C. The TiSiO4-added LiAlH4 composite was able to release more hydrogen (about 6.0 wt%) compared to undoped LiAlH4 at 90 degrees C for 2 hours. The addition of TiSiO4 also reduced the activation energies for hydrogen liberation from LiAlH4.
Article
Chemistry, Physical
Huang Liu, Jingxi Zhang, Pei Sun, Chengshang Zhou, Yong Liu, Zhigang Zak Fang
Summary: In this study, the effect of oxygen addition on the phase composition and hydrogen storage properties of TiFe alloys was systematically investigated. The results showed that high oxygen content improved the initial hydrogen sorption of TiFe, but reduced the hydrogen capacity. Increasing oxygen content also slightly increased the hydrogenation equilibrium pressure, but had almost no impact on the thermodynamics of TiFe alloy.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Luis Contreras, Margarita Mayacela, Alberto Bustillos, Leonardo Renteria, David Book
Summary: The formation and hydrogen sorption properties of the NaMgH3 perovskite/type hydride were studied, and it was found that the lattice parameters and cell volume of the main NaMgH3 phase increased with milling time. The NaMgH3 hydride milled for 2 hours released the highest amount of hydrogen, which could be reversibly hydrogenated at about 200 degrees Celsius.
Article
Chemistry, Physical
Shujing Li, Lili Yang, Yunfeng Zhu, Yana Liu, Jiguang Zhang, Mengran Li, Zhixing Ba, Liquan Li
Summary: This study systematically investigated the dehydrogenation properties and microstructures of Mg-Al-based hydrides with micro/nano-Ni added under air exposure conditions. It was found that the addition of nano-Ni can effectively promote hydrogen desorption and maintain excellent dehydrogenation performance even after air exposure.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Yuanyuan Shang, Claudio Pistidda, Chiara Milanese, Alessandro Girella, Alexander Schokel, Thi Thu Le, Annbritt Hagenah, Oliver Metz, Thomas Klassen, Martin Dornheim
Summary: This manuscript proposes a method for obtaining high-quality NaAlH4 from automotive recycled alloy, and comprehensively explores its hydrogen storage properties using various experimental techniques. The results show that NaAlH4 with comparable properties to high-purity commercial NaAlH4 was successfully synthesized.
Article
Chemistry, Physical
Shashi Sharma, Rini Singh, Takayuki Ichikawa, Ankur Jain, Shivani Agarwal
Summary: Hydrogen as an energy carrier has great potential for future energy infrastructure. The storage of hydrogen in solid state materials, such as KSiH3, has been proposed as a safe method. In this study, vanadium-based catalysts, particularly V2O5, were added to enhance the kinetics and reduce the activation energy of the KSiH3 system. The addition of V2O5 catalyst enabled hydrogen desorption at lower temperatures and achieved a high weight loss close to the theoretical value, indicating improved reversibility and hydrogen storage capacity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Noratiqah Sazelee, Nurul Shafikah Mustafa, Muhammad Syarifuddin Yahya, Mohammad Ismail
Summary: Adding 10wt% spherical SrTiO3 catalyst can decrease the onset desorption temperature and enhance the desorption kinetics of NaAlH4. The decrease in apparent activation energy and improvement in desorption properties of NaAlH4 are attributed to the reduction of the physical structure of NaAlH4 by SrTiO3 during ball milling.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Hyojeong Park, Jinho Oh, Thanh-Binh Nguyen, Jung Kyoo Lee
Summary: The hydrogen storage and release characteristics of simulated light cycle oil (Sim-LCO) were studied and compared to a toluene/methylcyclohexane pair. Sim-LCO showed a higher H2 storage capacity and release of hydrogen compared to toluene. However, the dehydrogenation activity of the platinum catalyst needs improvement.
APPLIED CATALYSIS A-GENERAL
(2022)
Review
Chemistry, Physical
Changhyo Sun, Chenxi Wang, Taejun Ha, Joonho Lee, Jae-Hyeok Shim, Yunseok Kim
Summary: Increasing demand for renewable and clean energy due to environmental pollution and energy consumption has led to increased attention towards hydrogen storage materials. These materials have high safety and large volumetric density for hydrogen storage, making them suitable for large-capacity and long-term energy storage capability. Various characterization techniques have been used to understand the mechanisms of hydrogen absorption and desorption, with a recent focus on local characterization techniques to study surface and nanostructural interface effects. This article reviews the application of these characterization techniques in exploring hydrogen storage materials.
Review
Chemistry, Physical
N. A. Ali, N. A. Sazelee, M. Ismail
Summary: Metal hydrides and complex hydrides are the most convenient method for hydrogen storage, offering high hydrogen capacity, but facing challenges of high operating temperature and low reversibility.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Mahvash Afzal, Nandlal Gupta, Aashish Mallik, K. S. Vishnulal, Pratibha Sharma
Summary: This study continues the computational analysis of a reactor with hexagonal honeycomb-based heat transfer enhancements, investigating the performance of a metal alloy and the reactor experimentally. It determines the gravimetric capacity and reaction kinetics of the alloy La0.9Ce0.1Ni5, while also exploring the impact of operating conditions on reactor performance. Additionally, evaporative cooling is tested for the first time as a heat removal technique for metal hydride based hydrogen storage reactors and found to significantly improve heat transfer.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Nurul Nafiqah Itam Sulaiman, Muhammad Syarifuddin Yahya, Noratiqah Sazelee, Nurul Amirah Ali, Nurul Shafikah Mustafa, Muhammad Firdaus Asyraf Abdul Halim Yap, Mohammad Ismail
Summary: The addition of SrTiO3 significantly improves the hydrogen sorption performance of the 4MgH(2)-Li3AlH6 composite, mainly due to the alteration of its microstructure and pulverization effect. SrTiO3 demonstrates a good catalytic ability to the 4MgH(2)-Li3AlH6 system, reducing the onset decomposition temperature and enhancing rehydrogenation kinetics performance.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Nozomi Noto, Shigehito Isobe, Naoyuki Hashimoto
Summary: The research evaluated the dehydrogenation properties of several hydride-hydroxide systems and found that only the KH-LiOH system showed potential for reversible hydrogen adsorption/desorption, although rehydrogenation would require extremely high pressure.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Review
Metallurgy & Metallurgical Engineering
Yuanyuan Shang, Claudio Pistidda, Goekhan Gizera, Thomas Klassen, Martin Dornheim
Summary: Magnesium and magnesium based compounds have been extensively studied as potential hydrogen and thermal energy storage materials due to their abundance and high storage densities. Efforts have been made by the scientific community to improve their properties while maintaining high hydrogen storage capacity.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
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)