Article
Thermodynamics
Chongye Chang, Xinyu Wei, Jiafan Ren, Jinhua Peng, Miao Yao, Xinming Qian
Summary: By studying the thermal decomposition curves and kinetic parameters of mixed explosives, it was found that adding aluminum powder/Mg(BH4)2 mixture below a 2:1 mass ratio can improve the thermal stability of the explosive, thus enhancing its thermal safety.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Chemistry, Physical
Angelina Gigante, Noemi Leick, Andrew S. Lipton, Ba Tran, Nicholas A. Strange, Mark Bowden, Madison B. Martinez, Romain Moury, Thomas Gennett, Hans Hagemann, Tom S. Autrey
Summary: The addition of activated MgH2 significantly improves the efficiency of Mg(B3H8)(2) conversion to BH4- and reduces B-losses. The system can selectively convert at moderate temperature (200 degrees C) in a short period of time, showing great potential for energy storage applications.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Liwen F. Wan, Tom Autrey, Brandon C. Wood
Summary: This study aims to understand the kinetic limitations of Mg(BH4)(2) through first-principles simulations. It identifies the rate-limiting step during BH4--B3H8- conversion and clarifies the existence of molecular species as intermediates in the Mg-BH4-Mg matrix. This provides valuable insights for the development of efficient hydrogen storage materials.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Physical
Yigang Yan, Jakob B. Grinderslev, Tatsiana Burankova, Shanghai Wei, Jan P. Embs, Jorgen Skibsted, Torben R. Jensen
Summary: The design of new functional materials with fast Mg-ion mobility is crucial for the development of competitive solid-state magnesium batteries. In this study, a new nanocomposite material with high magnesium conductivity at room temperature is presented, showing stable electrochemical performance and mechanical properties.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Jianguang Yuan, Haixiang Huang, Zan Jiang, Yujie Lv, Bogu Liu, Bao Zhang, Youhua Yan, Ying Wu
Summary: By introducing Ni/MWCNTs catalyst into Mg(BH4)(2), the hydrogen desorption rates were significantly improved, and the 95M@5NiMWCNTs sample showed the best hydrogen storage performance.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Noemi Leick, Nicholas A. Strange, Andreas Schneemann, Vitalie Stavila, Karl Gross, Nancy Washton, Amy Settle, Madison B. Martinez, Thomas Gennett, Steven T. Christensen
Summary: This study utilizes nanoencapsulation and chemical additives simultaneously to modify borohydrides by using atomic layer deposition (ALD). The use of trimethylaluminum and water in the ALD process significantly improves the low-temperature H2 capacity and desorption kinetics of magnesium borohydride, while suppressing the release of diborane. These results suggest the potential of ALD as a method to functionalize solid-state H2 storage materials.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Engineering, Environmental
Zhi Zhang, Dongqiang Gao, Jiaguang Zheng, Ao Xia, Qingbo Zhang, Li Wang, Liuting Zhang
Summary: It has been discovered that VF4 nanoparticles anchored on 2D Mxene Ti3C2 effectively catalyze the hydrogen storage process of Mg(BH4)2, leading to lower release temperatures and higher hydrogen desorption. The interaction between VF4@Ti3C2 and Mg(BH4)2 produces VH2.01 and metallic Ti, which act as active species to improve hydrogen storage performance in Mg(BH4)2.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Nicholas A. Strange, Noemi Leick, Sarah Shulda, Andreas Schneemann, Vitalie Stavila, Andrew S. Lipton, Michael F. Toney, Thomas Gennett, Steven T. Christensen
Summary: Magnesium borohydride is a promising material for hydrogen storage, but its slow dehydrogenation kinetics and formation of intermediate polyboranes limit its application in clean energy technologies. This study presents a novel approach of modifying the physicochemical properties of magnesium borohydride by adding reactive molecules in the vapor phase. The effects of four different molecules on the additive-Mg(BH4)(2) interaction and hydrogen release at lower temperatures are examined. The results demonstrate the efficacy of this approach and provide a new path for additive-based modification of hydrogen storage materials.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Engineering, Environmental
Yujie Lv, Yifan Jing, Bao Zhang, Yingxue Li, Guanglin Xia, Xuebin Yu, Pengru Huang, Haixiang Huang, Bogu Liu, Jianguang Yuan, Ying Wu
Summary: This study investigates the introduction of MXenes as catalysts into Mg(BH4)2 to improve its hydrogen storage properties. The addition of 30 wt% MXenes significantly lowers the dehydrogenation temperature of Mg(BH4)2 and enhances its dehydrogenation rate and capacity. Theoretical calculations and experimental analysis reveal the important role of electron transfer and dehybridization effects at the Mg(BH4)2/MXenes interfaces in improving the dehydrogenation properties.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Noemi Leick, Ba L. Tran, Mark E. Bowden, Thomas Gennett, Tom Autrey
Summary: This study investigated the thermal stability of coordination complexes formed between different glymes with Mg(BH4)(2), revealing diverse phase transitions, speciations, and decomposition pathways despite their structural similarities.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Iffat H. Nayyar, Bojana Ginovska, Mark Bowden, Gary Edvenson, Ba Tran, Tom Autrey
Summary: The thermodynamic properties of key compounds formed in the release and uptake of hydrogen by magnesium borohydride have been investigated using solid-state density functional theory calculations. The effects of cell-size and zero-point energy corrections on the entropies were analyzed. Experimental validation for the predicted chemical shifts of various compounds was provided. The reversible hydrogen storage characteristics of MgB2H6 and Mg-3(B3H6)(2) were discussed.
JOURNAL OF PHYSICAL CHEMISTRY A
(2022)
Article
Chemistry, Physical
Robert T. Bell, Nicholas A. Strange, Noemi Leick, Vitalie Stavila, Mark E. Bowden, Tom S. Autrey, Thomas Gennett
Summary: The use of an organic borohydride salt additive, tetramethylammonium borohydride (TMAB), has been shown to enhance the chemical stability and thermal cyclability of Mg(BH4)(2) melt. This finding is significant for applications in hydrogen storage and magnesium battery technologies.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Energy & Fuels
Nurul N. Sulaiman, Mohammad Ismail, Sharifah N. Timmiati, Kean L. Lim
Summary: This study investigated the preparation of the LiAlH4 + Mg(BH4)2 combined system using ball milling technique, revealing superior hydrogen storage performance compared to individual components. The addition of TiF3 significantly enhanced hydrogen storage properties by reducing the initial decomposition temperature and improving isothermal absorption/desorption kinetics. The catalytic role of TiF3 facilitated interactions between Mg(AlH4)2, MgH2, and LiBH4, enhancing de/hydrogenation performance of the destabilized system.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Physics, Applied
Zigeng Huang, Xinwei Cai, Dan Xi, Wenhao Luo, Chen Guo, Qingrong Feng, Ruijuan Nie, Furen Wang, Zizhao Gan
Summary: A new in-situ low-temperature sintering method using Mg(BH4)(2) as a precursor is introduced in this paper, achieving comparable MgB2 samples at lower sintering temperatures compared to traditional methods. The decomposition of Mg(BH4)(2) into highly reactive nanoscale Mg and B without impurities is a key feature of this method.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
H. X. Huang, B. G. Liu, Y. J. Lv, W. Lv, J. G. Yuan, Y. Wu
Summary: The study introduces a facile method of using Mg95Ni5 to suppress the release of ammonia completely in the Mg(BH4)(2)center dot 2NH(3) system. The composite exhibits the best hydrogen desorption kinetics when Mg(BH4)(2)center dot 2NH(3) and Mg95Ni5 hydride are combined in a mass ratio of 2:1.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
