Article
Chemistry, Physical
W. Kuang, B. W. Arey, A. C. Dohnalkova, L. Kovarik, B. Mills, N. C. Menon, R. J. Seffens, K. L. Simmons
Summary: This study used multi-scale imaging techniques, such as X-ray micro-computed tomography, helium ion microscopy, and transmission electron microscopy, to investigate the severe structural damage in EPDM rubber caused by high-pressure hydrogen exposure. The research revealed an association between zinc oxide particles and damage initiation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Ihor Zavaliy, Vasyl Berezovets, Roman Denys, Oleksandr Kononiuk, Volodymyr Yartys
Summary: The catalytic effect of eta-Zr3V3O0.6 mixed suboxide and graphite additives on MgH2 properties in hydrogen storage and generation processes was investigated. Hydride composites were obtained by reactive ball milling and characterized using XRD and SEM. The addition of Zr3V3O0.6 and graphite significantly enhanced hydrogen absorption and desorption rates, as well as lowered the activation energy and desorption temperature. The synthesized composite showed improved kinetics and enhanced hydrogenation capacity, making it a promising material for hydrogen storage. The catalytic composites also exhibited efficient hydrogen generation in hydrolysis reaction. Overall, the research received a rating of 8 out of 10.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Physics, Multidisciplinary
Darren J. Batey, Frederic Van Assche, Sander Vanheule, Matthieu N. Boone, Andrew J. Parnell, Oleksandr O. Mykhaylyk, Christoph Rau, Silvia Cipiccia
Summary: This experiment demonstrated the successful application of X-ray ptychography in a small-scale laboratory setting, showcasing the potential for high-resolution phase contrast imaging to be performed at small-scale sources worldwide.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Jochen A. Kammerer, Xiaoyang Duan, Frank Neubrech, Rasmus R. Schroder, Na Liu, Martin Pfannmoeller
Summary: The formation of metastable gamma-MgH2 and nanoparticle design can improve dehydrogenation performance of the Mg/MgH2 system by utilizing volume expansion and stress release mechanisms during hydrogenation.
ADVANCED MATERIALS
(2021)
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
Biochemistry & Molecular Biology
Ou Jin, Yuanyuan Shang, Xiaohui Huang, Dorothee Vinga Szabo, Thi Thu Le, Stefan Wagner, Thomas Klassen, Christian Kuebel, Claudio Pistidda, Astrid Pundt
Summary: The addition of 3TiCl(3)center dot AlCl3 is found to improve the dehydrogenation kinetics of the reactive hydride composite LiBH4-MgH2. The growth process of MgB2 is studied, and it is observed that MgB2 prefers to form on TiB2 nanoparticles due to the creation of an interface that reduces the elastic strain energy density. The kinetics of MgB2 growth is described by the JMAK equation, and it is suggested that the nucleation center change from Mg to TiB2 leads to a transition from interface- to diffusion-controlled growth, resulting in a change in MgB2 morphology.
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
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
Microscopy
M. Bergin, W. Roland-Batty, C. J. Hatchwell, T. A. Myles, J. Martens, A. Fahy, M. Barr, W. J. Belcher, P. C. Dastoor
Summary: This paper presents a method for determining the resolution of scanning helium microscopy, including quantitative measurements using appropriate test samples. The aim is to establish a consensus-based protocol for this developing technique, enabling comparable quantitative measurements of surface topography and direct comparisons between different instruments.
Article
Engineering, Environmental
Mingxing Wei, Yijin Liu, Xiaofei Xing, Zhao Zhang, Tong Liu
Summary: By introducing a specially designed and synthesized high-entropy alloy catalyst, the hydrogen storage properties of MgH2 have been significantly improved, resulting in faster absorption and desorption rates, lower activation energy, and high capacity retention.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Metallurgy & Metallurgical Engineering
N. A. Ali, N. A. Sazelee, M. F. Md Din, M. M. Nasef, A. A. Jalil, Haizen Liu, M. Ismail
Summary: Zinc titanate synthesized by the solid-state method can effectively lower the initial temperature for dehydrogenation and enhance the re/dehydrogenation behavior of MgH2. The addition of Zn2TiO4 significantly reduces the dehydrogenation starting temperature of MgH2 and improves its kinetics performance, allowing for faster hydrogen absorption and release.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Chemistry, Physical
V. V. Berezovets, R. Denys, I. Yu Zavaliy, Yu Kosarchyn
Summary: MgH2-based nanocomposites were synthesized using reactive ball milling and various catalytic additives. The additives improved the hydrogen absorption-desorption kinetics and stability of the composites. Nano-Ti showed the most stable hydrogen absorption-desorption characteristics compared to TiO2 and Ti4Fe2Ox additives.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Nigel Rambhujun, Kondo-Francois Aguey-Zinsou
Summary: By tuning the chemical structure and activation energy of Grignard reagents, efficient generation of magnesium and its hydride can be achieved. For example, di-tert-butylmagnesium can decompose at low temperatures to produce MgH2 and release hydrogen at lower temperatures.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
N. Y. Yusnizam, N. A. Ali, N. A. Sazelee, M. M. Nasef, A. A. Jalil, M. Ismail
Summary: This study investigated the effect of barium cobalt fluoride (BaCoF4) on the de-/rehydrogenation properties of magnesium hydride (MgH2) for the first time. The addition of 10 wt% BaCoF4 significantly enhanced the de-/rehydrogenation kinetics and hydrogen absorption capacity of MgH2. BaCoF4 lowered the desorption temperature, improved the sorption kinetics, and reduced the activation energy for hydrogen desorption of MgH2 by forming CoF3 and Ba or Ba-containing species.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Taejun Ha, June-Hyung Kim, Changhyo Sun, Dong-Ik Kim, Jin-Yoo Suh, Jae-il Jang, Joonho Lee, Yunseok Kim, Jae-Hyeok Shim
Summary: The effect of Ce addition on the initial hydrogen absorption behavior and microstructural features of AB-type Ti50Fe48V2 hydrogen storage alloys was investigated. Ce addition significantly improved the initial hydrogen absorption kinetics at room temperature, with no significant influence on the pressure-composition isotherms. Fine spherical particles containing Ce were dispersed in the TiFe matrix, and these particles were determined to be gamma-Ce mixed with cerium oxide. Ce particles played a crucial role by providing starting points for initial hydrogenation, explaining the significant increase in primary hydrogen absorption kinetics after Ce addition.
Article
Microscopy
F. De Pascalis, M. Nacucchi
JOURNAL OF MICROSCOPY
(2019)
Article
Chemistry, Analytical
M. Sbroscia, M. Cestelli-Guidi, F. Colao, S. Falzone, C. Gioia, P. Gioia, C. Marconi, D. Mirabile Gattia, E. M. Loreti, M. Marinelli, M. Missori, F. Persia, L. Pronti, M. Romani, A. Sodo, G. Verona-Rinati, M. A. Ricci, R. Fantoni
MICROCHEMICAL JOURNAL
(2020)
Article
Chemistry, Physical
Fabrizio Scognamiglio, Daniele Mirabile Gattia, Graziella Roselli, Franca Persia, Ugo De Angelis, Carlo Santulli
Article
Materials Science, Composites
Elena Dilonardo, Michele Nacucchi, Fabio De Pascalis, Mauro Zarrelli, Cinzia Giannini
COMPOSITES SCIENCE AND TECHNOLOGY
(2020)
Article
Dentistry, Oral Surgery & Medicine
Luca Lombardo, Mario Palone, Mattia Longo, Niki Arveda, Michele Nacucchi, Fabio De Pascalis, Giorgio Alfredo Spedicato, Giuseppe Siciliani
PROGRESS IN ORTHODONTICS
(2020)
Article
Engineering, Manufacturing
F. Lionetto, F. Montagna, D. Natali, F. De Pascalis, M. Nacucchi, F. Caretto, A. Maffezzoli
Summary: This study characterized the architectural anisotropy of short fiber reinforced polymers (SFRPs) using X-ray computed micro-tomography (micro-CT) and four different morphometric methods. The obtained information on fiber orientation was used to predict elastic constants and design SFRP components, showcasing the importance of understanding fiber structure for composite material properties.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Polymer Science
Stefano Tagliabue, Luca Andena, Michele Nacucchi, Fabio De Pascalis
Summary: This study proposes an image-based approach for microstructure characterization and 3D numerical mechanical simulations of polymeric expanded materials, identifying general relationships between microstructure and macroscopic properties.
JOURNAL OF POLYMER RESEARCH
(2021)
Article
Materials Science, Composites
E. Dilonardo, M. Nacucchi, F. De Pascalis, M. Zarrelli, C. Giannini
Summary: The reported research activity conducted a quantitatively 3D characterization of a CFRP composite with controlled porosity using micro X-ray CT, showing high correspondence with theoretical values. In contrast, results obtained through acid digestion analysis showed discrepancies with theoretical values. Therefore, the proposed NDT method demonstrated the feasibility of rapid and reliable inspection as a substitute for standard procedures.
APPLIED COMPOSITE MATERIALS
(2022)
Article
Chemistry, Physical
Francesco Torre, Claudio Mingazzini, Daniele Mirabile Gattia, Teodor Huminiuc, Antonio Rinaldi, Tomas Polcar, Francesco Delogu, Antonio Mario Locci
Summary: The stability of nanostructured metal alloys is being studied, with a novel theoretical approach identifying potentially stable W-based nanocrystalline alloys. Experimental results and model predictions show agreement, with W-Ag mixtures retaining segregated structure while W-Al solid solutions exhibit enhanced thermal stability.
Article
Materials Science, Composites
Fabio De Pascalis, Francesca Lionetto, Alfonso Maffezzoli, Michele Nacucchi
Summary: A general method of predicting the stiffness tensor of short-fiber composites has been presented in this study, based on the fabric tensor obtained from X-ray computed tomography. The method does not rely on the specific type of fabric tensor used to characterize the symmetry properties of the composite. Experimental data from thermoplastic composite matrices reinforced with short carbon and basalt fibers were used to validate the method. The statistical alignment of fibers in each portion of the sample was measured to calculate the components of the stiffness tensor.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Multidisciplinary
Paola Leo, Antonio Del Prete, Teresa Primo, Michele Nacucchi
Summary: Selective Laser Melting (SLM) is an attractive additive manufacturing technology for the fabrication of complex metallic components. Aluminum alloys, which are lightweight and recyclable, also exhibit sustainable performances. However, the laser processing of aluminum alloys needs to be optimized. This study analyzes the effects of heat input on microstructure, defects, porosity, melting pool geometries, and mechanical performance of Al-Si10-Mg samples.
Article
Dentistry, Oral Surgery & Medicine
Mario Palone, Mattia Longo, Niki Arveda, Michele Nacucchi, Fabio De Pascalis, Giorgio Alfredo Spedicato, Giuseppe Siciliani, Luca Lombardo
Summary: The study showed that thermoforming affects the thickness and gap width of aligners, with different tooth types, regions, and aligner types influencing the results. In thermoformed samples, the thickness and gap width at anterior teeth and central positions were smaller than those at posterior teeth and occlusal surfaces.
KOREAN JOURNAL OF ORTHODONTICS
(2021)
Article
Chemistry, Multidisciplinary
Rosanna Viscardi, Vincenzo Barbarossa, Daniele Mirabile Gattia, Raimondo Maggi, Giovanni Maestri, Francesco Pancrazzi
NEW JOURNAL OF CHEMISTRY
(2020)
Article
Chemistry, Inorganic & Nuclear
Daniele Mirabile Gattia, Mukesh Jangir, Indra Prabh Jain
Proceedings Paper
Physics, Multidisciplinary
L. Fazi, A. Prioriello, V. Scacco, W. Ciccognani, E. Serra, D. Mirabile Gattia, P. Morales, E. Limiti, R. Senesi
10TH YOUNG RESEARCHER MEETING
(2020)