Article
Energy & Fuels
Haoyuan Li, Qiang Fu, Hongyun Qin, Xia Chen, Qicheng Zhang, Hui Zhang, Shoudong Wang, Zixu Dong, Ming Wang
Summary: In this study, the controllable and continuous MgH2 hydrolysis was achieved by using an optimized porous filter element, which provides valuable reference for continuous MgH2 hydrolysis.
Article
Engineering, Environmental
Yongyang Zhu, Shaoyang Shen, Liuzhang Ouyang, Jiangwen Liu, Hui Wang, Zhenguo Huang, Min Zhu
Summary: This study reports an economical method to synthesize Mg(BH4)(2) by converting B-O bonds in widely available borates or boric acid to B-H. This method avoids expensive boron sources and high pressure and temperature conditions, significantly reducing costs, and could be an alternative to the current synthesis processes of Mg(BH4)(2).
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Dezhu Tan, Cong Peng, Qingan Zhang
Summary: In this study, a Mg-Ni-TiS2 composite was synthesized through a solution-based method, which showed improved hydrogen desorption kinetics due to the synergistic catalytic effect of Mg2NiH4, TiH2, and TiS2. The composite also exhibited high cycle stability. This work provides a feasible approach for the development of Mg-based hydrogen storage materials.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Cong Peng, Yongtao Li, Qingan Zhang
Summary: This paper proposes a new approach to improve the sorption kinetics of magnesium hydride by catalyzing it with highly dispersed nickel nanoparticles. The experiment demonstrates that the in-situ formation of highly dispersed Ni nanoparticles in the MgH2 matrix significantly enhances the hydrogen desorption kinetics and retention rate of MgH2.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
N. A. Sazelee, N. A. Ali, M. S. Yahya, M. F. Md Din, M. Ismail
Summary: In this study, BaMnO3 was used as an additive to improve the drawbacks of MgH2, resulting in a lower desorption temperature, faster absorption kinetics, and lower activation energy. The formation of certain compounds enhanced the performance of MgH2.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Materials Science, Multidisciplinary
Hang Yang, Zhao Ding, Yu-Ting Li, Shao-Yuan Li, Ping-Keng Wu, Quan-Hui Hou, Yang Zheng, Biao Gao, Kai-Fu Huo, Wen-Jia Du, Leon L. Shaw
Summary: Developing safer and more efficient hydrogen storage technology is crucial for the realization of the hydrogen economy. MgH2 has been extensively studied as a promising solid-state hydrogen storage material due to its lightweight, high storage density, and abundant reserves. However, practical applications have been hindered by issues such as stable thermodynamics, sluggish kinetics, and rapid capacity decay.
Article
Chemistry, Physical
Chen Jin, Haoyuan Zheng, Li Wang, Haizhen Liu, Xinhua Wang, Mi Yan
Summary: Adding rare earth hydride CeH2.51 significantly improves the hydrogen storage performance of Mg(NH2)2-2LiH, enhancing the hydrogen absorption/desorption kinetics and cycle performance. The sample doped with 7.5 wt% CeH2.51 shows the best comprehensive performance, with reduced activation energy and stable hydrogen storage capacity after cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Haizhen Liu, Xingqing Duan, Zhiye Wu, Hui Luo, Xinhua Wang, Cunke Huang, Zhiqiang Lan, Wenzheng Zhou, Jin Guo, Mohammad Ismail
Summary: In this work, a bimetallic open layered Ti2VC2 MXene was successfully synthesized and showed good enhancing impact on the hydrogen storage properties of MgH2. MgH2-Ti2VC2 starts dehydrogenation at a lower temperature and both MgH2-Ti2VC2 and MgH2-Ti2VAlC2 can start rehydrogenation at room temperature. The reversible capacity of MgH2-Ti2VC2 only slightly decreases after 100 cycles.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Ou Jin, Yuanyuan Shang, Xiaohui Huang, Xiaoke Mu, Dorothee Vinga Szabo, Thi Thu Le, Stefan Wagner, Christian Kuebel, Claudio Pistidda, Astrid Pundt
Summary: This study investigates the reaction mechanism of LiBH4-MgH2 composite under the influence of additives using transmission electron microscopy. The formation of MgB2, as the rate-limiting step, is found to be related to different nucleation centers. The morphology and performance of MgB2 are affected by the in-plane strain energy density caused by atomic misfit at the interface.
Article
Metallurgy & Metallurgical Engineering
Yaokun Fu, Lu Zhang, Yuan Li, Sanyang Guo, Han Yu, Wenfeng Wang, Kailiang Ren, Wei Zhang, Shumin Han
Summary: Hydrogen storage is a crucial aspect of the hydrogen economy, and solid-state hydrogen storage is the most promising approach. In this study, a ternary transition metal sulfide FeNi2S4 with a hollow balloon structure was designed as a catalyst for MgH2 to enhance its dehydrogenation/hydrogenation performance by constructing a MgH2/Mg2NiH4-MgS/Fe system.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Chemistry, Physical
Chaodong Hu, Zhiwen Zheng, Tingzhi Si, Qingan Zhang
Summary: The amorphous TiMgVNi3-doped MgH2, prepared by ball milling under a hydrogen atmosphere, exhibits enhanced dehydrogenation kinetics and cycle durability due to the in situ formation of catalytic nanoparticles from an amorphous phase.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Peng Wang, Zhihui Tian, Zexuan Wang, Chaoqun Xia, Tai Yang, Xiulong Ou
Summary: In this study, transition metal sulfides were used as catalysts to enhance the hydrogen storage behaviors of MgH2. The addition of sulfides significantly increased the desorption and absorption kinetics of hydrogen in MgH2, with MgH2-TiS2 showing the best performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Environmental Sciences
Kanhaiya Chawla, Deepak Kumar Yadav, Abhinav Bajpai, Sushant Kumar, Chhagan Lal
Summary: This study investigates the improvement of hydrogen storage properties of MgH2 by using activated carbon as a catalyst in MgH2-AC nanocomposites. The results show that the presence of activated carbon helps reduce oxygen in MgO phase, leading to significantly enhanced absorption capacity and kinetics in the MgH2-AC nanocomposites. The nanocomposites also exhibit high hydrogenation properties with the presence of beta- and gamma-phases of MgH2, as supported by XRD data.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
J. L. Snider, T. M. Mattox, Y-S Liu, L. F. Wan, P. Wijeratne, M. D. Allendorf, V Stavila, B. C. Wood, L. E. Klebanoff
Summary: LiH significantly improves the hydrogenation of MgB2, lowering the temperature and without forming undesirable intermediates, while TiH2 is essentially inert when mixed with MgB2 during high-pressure hydrogenation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Materials Science, Multidisciplinary
Yaxiong Yang, Xin Zhang, Lingchao Zhang, Wenxuan Zhang, Huifeng Liu, Zhenguo Huang, Limei Yang, Changdong Gu, Wenping Sun, Mingxia Gao, Yongfeng Liu, Hongge Pan
Summary: The storage of hydrogen in a compact, safe and cost-effective manner is crucial for a more sustainable society. Magnesium hydride (MgH2) has attracted attention as a hydrogen carrier but its practical use is limited due to high temperatures and slow kinetics. Catalysis plays a crucial role in enhancing hydrogen cycling kinetics, and research has focused on designing and optimizing catalysts for Mg/MgH2.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Fabian Kochta, Uta Kuehn, Sebastian Henschel, Lars Giebeler, Thomas Gemming, Kai Neufeld, Christoph Leyens, Lutz Krueger, Julia Hufenbach
Summary: This study presents the correlation between microstructure and mechanical behavior of a novel designed high strength tool steel under quasi-static and dynamic loading conditions, attributing the behavior mainly to deformation-induced martensite formation. Tests under dynamic loading conditions show increased compressive yield strength and work hardening, without significant changes in compressive strength and total deformation. The newly developed cast tool steel exhibits no significant strain rate sensitivity, a notable property for cast tool steels.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Shu Zhang, Jinbo Pang, Yufen Li, Feng Yang, Thomas Gemming, Kai Wang, Xiao Wang, Songang Peng, Xiaoyan Liu, Bin Chang, Hong Liu, Weijia Zhou, Gianaurelio Cuniberti, Mark H. Ruemmeli
Summary: This review provides insights into the controllable synthesis and applications of high-quality CNTs, including electronic devices, sensors, pressure gauges, optical sensors, and energy applications. Future opportunities for IoT-oriented sensors, data processing, and artificial intelligence are also proposed.
Article
Materials Science, Multidisciplinary
Goekhan Gizer, Fahim Karimi, Claudio Pistidda, Hujun Cao, Julian A. Puszkiel, Yuanyuan Shang, Eike Gericke, Armin Hoell, P. Klaus Pranzas, Thomas Klassen, Martin Dornheim
Summary: This study investigates the effect of particle size changes of additives on the hydrogen storage kinetics in amide-hydride hydrogen storage systems using advanced synchrotron-based techniques. The results show that adding potassium stabilizes the hydrogen storage capacity but reduces it after multiple cycles. The study also demonstrates that particle size growth deteriorates the reaction kinetics, but selecting lower absorption temperatures can mitigate this deterioration and result in a two times faster reaction kinetics.
JOURNAL OF MATERIALS SCIENCE
(2022)
Editorial Material
Materials Science, Multidisciplinary
Claudio Pistidda
JOURNAL OF MATERIALS SCIENCE
(2022)
Review
Materials Science, Multidisciplinary
Yu Liu, Huy Q. Ta, Xiaoqin Yang, Yue Zhang, Junhua Zhou, Qitao Shi, Mengqi Zeng, Thomas Gemming, Barbara Trzebicka, Lei Fu, Mark H. Ruemmeli
Summary: This review focuses on the fabrication and characterization of free-standing nanostructures suspended in graphene using transmission electron microscopy, which enables the observations with atomic resolution and investigations of the dynamic behavior of atoms/structures in such materials. Additionally, the review discusses the influence of novel metal/nonmetal dopants in graphene vacancies with varying bond configurations and the catalytic activities of single atoms/clusters located at the graphene edges. Moreover, the dynamic forming process of freestanding single-atom-thick two-dimensional (2D) clusters/metal/metallenes and 2D clusters/metal/metallenes oxides is discussed.
SCIENCE CHINA-MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Panpan Zhao, Markus Gusenbauer, Harald Oezelt, Daniel Wolf, Thomas Gemming, Thomas Schrefl, Kornelius Nielsch, Thomas George Woodcock
Summary: In this study, aberration-corrected scanning transmission electron microscopy coupled with electron energy-loss spectroscopy was used to investigate the atomistic structure and chemical composition of twin boundaries in ferromagnetic r-MnAl-C. The results showed that there was Mn enrichment at both coherent and incoherent twin boundaries, and a transition region with Mn enrichment was found at order twin boundaries. Micromagnetic simulations revealed that increasing structural and chemical disorder at the interface led to an increase in coercivity.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
A. M. Neves, J. Puszkiel, G. Capurso, J. M. Bellosta von Colbe, T. Klassen, J. Jepsen
Summary: In this study, a comprehensive kinetic model was developed using the separable variable method to describe the dehydrogenation behavior of MgH2 and LiBH4 under different operative conditions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
David Buceta, Shahana Huseyinova, Miguel Cuerva, Hector Lozano, Lisandro J. J. Giovanetti, Jose M. Ramallo-Lopez, Patricia Lopez-Caballero, Alexandre Zanchet, Alexander O. O. Mitrushchenkov, Andreas W. W. Hauser, Giampaolo Barone, Cristian Huck-Iriart, Carlos Escudero, Juan Carlos Hernandez-Garrido, Jose Juan Calvino, Miguel Lopez-Haro, Maria Pilar de Lara-Castells, Felix G. Requejo, M. Arturo Lopez-Quintela
Summary: This study investigates the thermal stability and oxidation susceptibility of sub-nanometer metal clusters. The experimental results show that Cu-5 clusters supported on a substrate can resist irreversible oxidation up to at least 773 K, even in the presence of 0.15 mbar of oxygen. Theoretical calculations based on dispersion-corrected density functional theory and first principles thermochemistry explain the transformation of adsorbed O-2 molecules into superoxo and peroxo species through collective charge transfer and large amplitude breathing motions within the network of Cu atoms. A chemical phase diagram for Cu oxidation states in the Cu-5-oxygen system is presented, revealing distinct chemistry compared to bulk and nano-structured Cu.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Marietta Seifert, Barbara Leszczynska, Robert Weser, Siegfried Menzel, Thomas Gemming, Hagen Schmidt
Summary: TiAl-based SAW devices were prepared by depositing Ti/Al multilayers on high-temperature stable CTGS substrates, and characterized for their durability and electrical behavior at intermediate high temperatures. The devices exhibited sufficient stability and a linear dependence of the resonant frequency on temperature, making them suitable for long-term applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Multidisciplinary
Thi-Thu Le, Archa Santhosh, Simone Bordignon, Michele R. Chierotti, Paul Jerabek, Thomas Klassen, Claudio Pistidda
Summary: In this study, a mixed amide-hydride solid solution for the CsNH2-CsH system was investigated using a combination of experimental determination and computational prediction. The results demonstrate that a complete amide-hydride solid solution Cs(NH2)(x)H(1-x) with a stable cubic structure can be achieved when the molar fraction of amide (x) is lower than 0.9. The computational simulations and experimental data of infrared (IR) and nuclear magnetic resonance (NMR) spectra confirm the formation of the solid solutions.
RESULTS IN ENGINEERING
(2023)
Review
Engineering, Environmental
Thi-Thu Le, Mohsin Abbas, David M. Dreistadt, Thomas Klassen, Claudio Pistidda
Summary: In recent years, complex hydrides have attracted increasing interest for their potential applications in energy storage and conversion. This review provides a comprehensive overview of ionic conduction in complex hydrides and highlights possible approaches to enhance their ionic conductivity. Additionally, the use of complex hydrides as solid electrolytes for electrochemical conversion and storage applications is reviewed, along with the relationship between ionic conduction and hydrogen sorption properties.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Maria Laura Grasso, Sara Rozas Azcona, Pierre Arneodo Larochette, Santiago Aparicio, Fabiana Gennari
Summary: The thermochemical reaction between MgH2 and Li2CO3, with and without nickel as a catalyst, was investigated for CO2 transformation into fuels. Successful production of high-yield CH4 was achieved by controlling reaction conditions such as microstructural refining, MgH2:Li2CO3 molar ratio, temperature, and time. The presence of nickel catalyst significantly improved the methane yield. The results demonstrate the potential of thermochemical activation of MgH2:Li2CO3 mixture for CH4 generation and CO2 utilization.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Shahana Huseyinova, Jose M. Blanco Trillo, Jose M. Ramallo-Lopez, Felix G. Requejo, David Buceta, M. Arturo Lopez-Quintela
Summary: We report an easily scalable synthesis method for the preparation of cysteine-capped Cu-10 clusters through the reduction of Cu(ii) ions with NaBH4, using Cu-5 clusters as catalysts. The presence of such catalytic clusters allows controlling the formation of the larger Cu-10 clusters and prevents the production of copper oxides or Cu(i)-cysteine complexes. The visible light-absorbing Cu-10 clusters, obtained by the cluster-catalysed method, display high photocatalytic activities for the decomposition of methyl orange with visible light.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Archa Santhosh, ShinYoung Kang, Nathan Keilbart, Brandon C. Wood, Thomas Klassen, Paul Jerabek, Martin Dornheim
Summary: This study investigates the growth and nature of oxide films on the surface of TiFe intermetallic compound using first-principles methods. Different structures and temperature effects of oxide phases are studied in detail. The interaction between the oxidized surface and hydrogen is evaluated, providing important insights for the design of activation methods for TiFe and related materials as hydrogen storage materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Alberto Gutierrez, Juan Antonio Tamayo-Ramos, Sonia Martel, Rocio Barros, Alfredo Bol, Fabiana Cristina Gennari, Pierre Arneodo Larochette, Mert Atilhan, Santiago Aparicio
Summary: Lithium silicates have potential as high-temperature sorbents for CO2 capture. This study investigates the properties and CO2 interaction of Li4SiO4 and Li3NaSiO4 using density functional theory. The results demonstrate strong chemisorption of CO2 on these materials, leading to changes in their structure and charge.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
