Article
Chemistry, Physical
Jussara Barale, Federico Nastro, Davide Violi, Paola Rizzi, Carlo Luetto, Marcello Baricco
Summary: This study comprehensively presents the on-site compression of green hydrogen using metal hydrides, including the setup of a metal hydride compressor and the energy consumption and efficiency considerations. The compressor achieves compression of hydrogen from 28 bar to 250 bar, with high isentropic efficiency and average hydrogen flowrate.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Sadhasivam Thangarasu, Gowthami Palanisamy, Yeong Min Im, Tae Hwan Oh
Summary: Hydrogen energy has significant benefits for future energy needs and environmental concerns. However, the challenges in terms of hydrogen storage, particularly in metal hydrides, need to be addressed. This review focuses on alternative methods, such as polymer-hydride systems, to prevent contamination and improve hydrogen sorption properties.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Analytical
Frederik G. Tidemand, Andrea Zunino, Nicolai T. Johansen, Anna Freja Hansen, Peter Westh, Klaus Mosegaard, Lise Arleth
Summary: ANISPROU is a software that extracts quantitative information from complex ITC data through a semi-empirical method, addressing the issue of ITC data analysis in multifaceted cases and providing a more automated and objective analysis compared to existing methods.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
A. Cousins, F. T. Zohra, E. MacA. Gray, C. J. Webb, M. Kochanek, S. Edwards, L. Schoeman
Summary: Metal hydrides are a potential method for compressing hydrogen using waste heat. They absorb low-pressure hydrogen at low temperatures and release it at a higher pressure when the temperature is raised. Achieving higher compression ratios may require multiple stages of compression. The challenge lies in finding alloy pairs that can effectively work together to achieve the desired compression. The paper evaluates the selection of 33 hydrides for hydrogen compression, but none of the potential pairs meet the compression target. Modification of parameters or alloy properties could potentially resolve this issue. Overall, the paper highlights the importance of finding suitable alloy pairs for efficient hydrogen compression.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Mykhaylo Lototskyy, Volodymyr A. Yartys, Boris P. Tarasov, Roman Denys, Jon Eriksen, Mikhail S. Bocharnikov, Sun Tai, Vladimir Linkov
Summary: The performance of the thermally-driven metal hydride hydrogen compressor is defined by factors such as H-2 compression ratio, maximum output pressure, and throughput productivity. Material selection and performance optimization play a crucial role in enhancing compression efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Chemistry, Physical
Volodymyr A. Yartys, Mykhaylo V. Lototskyy
Summary: Laves-type intermetallics are a diverse group of compounds that can be used in various applications, including hydrogen gas getters, hydrogen storage materials, hydrogen compression, and metal hydride battery anode materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Evangelos I. Gkanas, Emmanuel Stamatakis, Christodoulos N. Christodoulou, George Tzamalis, George Karagiorgis, Alexander Chroneos, Navaratnarajah Kuganathan, Martin Khzouz, Athanasios K. Stubos
Summary: This study introduces and compares four different two-stage MHHCs, discussing key performance indicators during hydrogen compression. Experimental results show that under certain temperature ranges, some MHHCs exhibit high compression ratios and efficiencies.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Johan Bylin, Paulius Malinovskis, Anton Devishvili, Ralph H. Scheicher, Gunnar K. Palsson
Summary: In this study, the volume changes, force dipole tensor components, and elastic hydrogen-hydrogen interaction in a metallic glass were investigated both experimentally and theoretically. The results show that hydrogen-induced volume changes in the metallic glass can exceed 14%, and the out-of-plane component of the dipole tensor is similar to that found in crystalline materials. The calculations also indicate that the trace of the dipole tensor varies with hydrogen concentration, affecting the elastic hydrogen-hydrogen interaction energy.
Article
Thermodynamics
Seth Yarborough, Craig R. Bradshaw, Joe Orosz, Greg Kemp
Summary: Analysis of a semi-hermetic, commercial prototype spool compressor revealed total losses during discharge process account for 11-12% relative to ideal compression. These losses are mainly due to pressure drop, backflow through discharge valve ports, and gas flow across the motor through the compressor body. Redesigning the discharge plenum and motor cavity could potentially improve compressor efficiency by 5-6%. Further investigation into valve dynamics is required to address remaining losses. Heat rejection significantly affects compression process deviation from isentropic, suggesting modifications like flooded compression may be beneficial for the spool compressor.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2021)
Article
Thermodynamics
Boris Aguilar, Pierre Trontin, Kilian Koebschall, Fabien Dezitter, Jeanette Hussong, Philippe Villedieu
Summary: The melting process of aggregate-type snowflakes is studied, where the snowflakes are placed in an acoustic levitator with warm air flow. The shape evolution of the snowflake is recorded by a camera, and the total melting time is measured. A model is proposed based on a simplified 3D geometric representation of the snowflake and an accurate estimation of its bulk density, which greatly improves the accuracy of predicting the total melting time compared to existing models.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Chemistry, Inorganic & Nuclear
William Fernandez, Dorothea B. Hudson, Harshani J. Arachchilage, Christopher M. Zall
Summary: Rhodium(I) complexes with the formula [Rh(PP2)(PR3)]+ (PP2 = PhP(CH2CH(2)PPh(2))(2); R = Ph, Et, or Me) have been synthesized and characterized. The formation of rhodium(I) hydrides with the formula HRh(PP2)(PR3) via reactions with H-2 in the presence of strong bases was studied. The thermodynamic hydricities of these complexes were determined, and the structural factors underlying their modest hydricities were investigated.
Article
Thermodynamics
Xiaohui Gao, Yongguang Liu
Summary: A novel self-air-cooling reciprocating compressor (SACRC) is proposed in this study, which can continuously cool the compressor through ingenious structural design without any auxiliary equipment. Comparative simulation and experiment validation with traditional reciprocating compressor (TRC) show that SACRC significantly improves volumetric efficiency and temperature characteristics, especially at high output pressure and long working time.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2021)
Article
Environmental Sciences
Yu Zhao, Chenmin Gu, Xiaocheng Song
Summary: Two mathematical models were developed to describe CO2 and PM2.5 concentrations in metropolitan buses, utilizing a Computational Fluid Dynamics approach to determine pressure distribution at different speeds. The study quantified pressure differences and provided an accurate prediction model for pollutants, improving understanding of dispersion and exposure levels in buses.
Article
Chemistry, Physical
Arif Hariyadi, Suwarno Suwarno, Roman Denys, Jose Bellosta von Colbe, Tor Oskar Saetre, Volodymyr Yartys
Summary: Hydrides of the AB(2) Laves type alloys show efficient hydrogen storage capabilities and are suitable for designing high-performance hydrogen storage devices operating at ambient conditions. Experimental results indicate that the hydrogen absorption and desorption processes are jointly influenced by hydrogen diffusion and grain boundary nucleation, with increasing hydrogen content in the hydride leading to lower activation energies.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Milan Oncak, Rajko Cosic, Rene Kalus
Summary: A comparative study was conducted to evaluate the reliability of a diatomics-in-molecules (DIM) representation in calculating the photoabsorption spectra of charged helium clusters. The results showed that the DIM approach is suitable for simulating larger ionic helium clusters with good agreement with accurate ab initio methods.
Article
Materials Science, Multidisciplinary
Zhi-Nian Li, Hao-Chen Qiu, Shu-Mao Wang, Li-Jun Jiang, Jun Du, Jun-Xian Zhang, Michel Latroche, Fermin Cuevas
Summary: The Li-Mg-N-H hydrogen storage system, synthesized by reactive ball milling, demonstrates promising properties for hydrogen storage. The in situ and ex situ measurements reveal the phases and structural evolution during hydrogenation and dehydrogenation processes.
Article
Materials Science, Multidisciplinary
Zhi-Nian Li, Hao-Chen Qiu, Xiu-Mei Guo, Jian-Hua Ye, Shu-Mao Wang, Li-Jun Jiang, Jun Du, Fermin Cuevas
Summary: Li-Mg-N-B-H/ZrCoH3 composites were synthesized by ball milling under different atmospheres. The composite synthesized under hydrogen atmosphere displayed the best hydrogen storage properties. The microstructures and elemental distributions were characterized and it was found that Mg underwent in situ hydrogenation and ZrCoH3 particles were homogeneously distributed. The activation energy of the composite was calculated and found to be lower with the addition of ZrCoH3. The weakening of N-H bond was analyzed and discussed.
Review
Chemistry, Physical
Judith Monnier, Junxian Zhang, Fermin Cuevas, Michel Latroche
Summary: Hydrides have been widely used in hydrogen storage and nickel-metal hydride batteries, but they have also shown potential as anode materials and solid electrolytes for various ion batteries. This review highlights the recent advances and applications of hydrides as negative electrodes in Ni-MH and A-ion batteries and as electrolytes in all solid-state batteries (ASSB). Metallic hydrides, especially intergrowth compounds, have been found to be the best compromise for Ni-MH batteries. MgH2, especially in combination with TiH2, shows promising results as anode materials for Li-ion batteries. Complex hydrides like Liborohydride and closo-borates have potential as solid electrolytes for Li-based ASSB, whereas closo-hydroborate sodium salts and closo-carboborates are being investigated for Na and Mg-ASSB. Further research directions for hydrides in electrochemical applications are also discussed.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Article
Chemistry, Physical
Jussara Barale, Erika M. Dematteis, Giovanni Capurso, Bettina Neuman, Stefano Deledda, Paola Rizzi, Fermin Cuevas, Marcello Baricco
Summary: This study focuses on the industrial production of the alloy TiFe0.85Mn0.05 as an H2 carrier in metal hydride-based hydrogen storage systems. The experimental results show that the alloy exhibits fast kinetics, good resistance to gas impurities, and storage stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Fermin Cuevas, Michel Latroche
Summary: This paper provides a review of intermetallic-based materials for hydrogen gettering, discussing different chemistries, activation process, surface coating, and resistance to impurities. It also explores new processes and potential applications for these materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Carlos Morales, Antonio Pascual, Dietmar Leinen, Eduardo Flores, Esmeralda Munoz-Cortes, Fabrice Leardini, Jose R. Ares, Jan Ingo Flege, Leonardo Soriano, Isabel J. Ferrer, Carlos Sanchez
Summary: This study presents a reaction and kinetic model of the sulfuration reaction of metallic iron thin films into monosulfides. The evolution of the transport properties of the films during their sulfuration reaction was observed by slowing down the reaction. The study reveals that the sulfuration reaction involves two stages, including the transformation of iron into hexagonal pyrrhotite and a partial crystallization of pyrrhotite into ortho-rhombic pyrrhotite.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Erika Michela Dematteis, Jussara Barale, Giovanni Capurso, Stefano Deledda, Magnus H. Sorby, Fermin Cuevas, Michel Latroche, Marcello Baricco
Summary: Hydrogen, an efficient energy carrier produced from renewable sources, plays a vital role in the transition towards CO2-free energy. This study focuses on Ti-rich Ti(Fe,Mn)0.90 alloys and their deuterides, determining their crystal structure and analyzing the influence of Mn substitution on structural properties during reversible deuterium loading. The research provides valuable insights into hydrogen storage, structural knowledge, and the application of TiFe-type alloys in integrated hydrogen tank for energy storage systems.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Thermodynamics
Islam A. Hassan, Ramy H. Mohammed, Haitham S. Ramadan, Mohamed A. Saleh, Fermin Cuevas, Daniel Hissel
Summary: This paper proposes a multi-layer cylindrical reactor with metal hydride (MH) and phase change material (PCM) alternately arranged to solve the heat management problem of MH. Through numerical modeling and validation, it is found that the reactor using lithium nitrate trihydrate as PCM material has the best performance, reducing reactor volume while slightly delaying absorption time. The specific capacity rate (SCR) and volumetric capacity rate (VCR) of the proposed reactor are 3.4 and 3.12 times higher than the corresponding values in literature.
APPLIED THERMAL ENGINEERING
(2023)
Article
Chemistry, Physical
Fermin Cuevas, Barbara Laik, Junxian Zhang, Mickaël Mateos, Jean-Pierre Pereira-Ramos, Michel Latroche
Summary: In this study, Ti1-xVxH2 compounds were synthesized by mechanochemistry, and their electrochemical properties as anodes in LiBs and NaBs were investigated. It was found that the compounds have a highly nanostructured fluorite-type structure, and the lattice parameter decreases with the increase of V content, leading to material destabilization. Electrochemical studies in Li-ion half cells showed that the potential of the conversion reaction varies with the vanadium content. Na-ion half cell measurements revealed significant kinetic limitations in the reactivity between (V, Ti)H2 hydrides and sodium.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Editorial Material
Chemistry, Physical
Volodymyr A. Yartys, Fermin Cuevas
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Volodymyr A. Yartys, Colin J. Webb, Fermin Cuevas
Summary: The paper provides an overview of advanced in situ diffraction studies for probing the structure and reacting mechanisms of hydrogen and energy storage materials. These studies utilize high flux diffraction beam and high resolution measurements to establish the mechanism of phase-structural transformations and their kinetics. Various conditions, such as hydrogen/deuterium pressures and temperatures, as well as different charge-discharge states, are considered. The paper also highlights the contributions of Dr. Michel Latroche and summarises a long-standing collaboration between the co-authors in the field.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
N. Chaabene, J. Zhang, M. Turmine, E. Kurchavova, V. Vivier, F. Cuevas, M. Mateos, M. Latroche, J. Monnier
Summary: This work investigates the physicochemical properties of different ionic liquids (ILs) and their mixtures with acids or bases, which have the potential to be used as electrolytes in protonic batteries. The electrochemical properties of these ILs are studied using an AB(5)-type compound as the negative electrode in a half-cell configuration. The results show that [Pyrr][Ac] IL exhibits a discharge capacity of 221 mAh/g at a low charge/discharge overpotential, and stable cycling performance with an enlarged electroactivity window of 2.2 V compared to KOH.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Carlos Morales, Antonio Pascual, Dietmar Leinen, Eduardo Flores, Esmeralda Munoz-Cortes, Fabrice Leardini, Jose R. Ares, Jan Ingo Flege, Leonardo Soriano, Isabel J. Ferrer, Carlos Sanchez
Summary: This study presents a reaction and kinetic model of the sulfuration reaction of metallic iron thin films into monosulfides. The observation of two stages in the sulfuration process and the explanation of the changes in electrical resistance and Seebeck coefficient of the Fe film provide insights into the transformation process.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Review
Energy & Fuels
Luca Pasquini, Kouji Sakaki, Etsuo Akiba, Mark D. Allendorf, Ebert Alvares, Jose R. Ares, Dotan Babai, Marcello Baricco, Jose Bellosta von Colbe, Matvey Bereznitsky, Craig E. Buckley, Young Whan Cho, Fermin Cuevas, Patricia de Rango, Erika Michela Dematteis, Roman V. Denys, Martin Dornheim, J. F. Fernandez, Arif Hariyadi, Bjrn C. Hauback, Tae Wook Heo, Michael Hirscher, Terry D. Humphries, Jacques Huot, Isaac Jacob, Torben R. Jensen, Paul Jerabek, Shin Young Kang, Nathan Keilbart, Hyunjeong Kim, Michel Latroche, F. Leardini, Haiwen Li, Sanliang Ling, Mykhaylo V. Lototskyy, Ryan Mullen, Shin-ichi Orimo, Mark Paskevicius, Claudio Pistidda, Marek Polanski, Julian Puszkiel, Eugen Rabkin, Martin Sahlberg, Sabrina Sartori, Archa Santhosh, Toyoto Sato, Roni Z. Shneck, Magnus H. Sorby, Yuanyuan Shang, Vitalie Stavila, Jin-Yoo Suh, Suwarno Suwarno, Le Thi Thu, Liwen F. Wan, Colin J. Webb, Matthew Witman, ChuBin Wan, Brandon C. Wood, Volodymyr A. Yartys
Summary: This review summarizes the latest research progress on hydrides based on magnesium and intermetallic compounds for energy storage. It covers topics such as hydrogen sorption mechanisms, synthesis and processing techniques, catalysts, and the development of new compounds. The article highlights the important role of these hydrides in the clean energy transition and the deployment of hydrogen as an energy vector.
PROGRESS IN ENERGY
(2022)
