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Wang Y, Xue Y, Züttel A. Nanoscale engineering of solid-state materials for boosting hydrogen storage. Chem Soc Rev 2024; 53:972-1003. [PMID: 38111973 DOI: 10.1039/d3cs00706e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
The development of novel materials capable of securely storing hydrogen at high volumetric and gravimetric densities is a requirement for the wide-scale usage of hydrogen as an energy carrier. In recent years, great efforts via nanoscale tuning and designing strategies on both physisorbents and chemisorbents have been devoted to improvements in their thermodynamic and kinetic aspects. Increasing the hydrogen storage capacity/density for physisorbents and chemisorbents and improving the dehydrogenation kinetics of hydrides are still considered a challenge. The extensive and fast development of advanced nanotechnologies has fueled a surge in research that presents huge potential in designing solid-state materials to meet the ultimate U.S. Department of Energy capacity targets for onboard light-duty vehicles, material-handling equipments, and portable power applications. Different from the existing literature, in this review, particular attention is paid to the recent advances in nanoscale engineering of solid-state materials for boosting hydrogen storage, especially the nanoscale tuning and designing strategies. We first present a short overview of hydrogen storage mechanisms of nanoscale engineering for boosted hydrogen storage performance on solid-state materials, for example, hydrogen spillover, nanopump effect, nanosize effect, nanocatalysis, and other non-classical hydrogen storage mechanisms. Then, the focus is on recent advancements in nanoscale engineering strategies aimed at enhancing the gravimetric hydrogen storage capacity of porous materials, reducing dehydrogenation temperature and improving reaction kinetics and reversibility of hydrogen desorption/absorption for metal hydrides. Effective nanoscale tuning strategies for enhancing the hydrogen storage performance of porous materials include optimizing surface area and pore volume, fine-tuning nanopore sizes, introducing nanostructure doping, and crafting nanoarchitecture and nanohybrid materials. For metal hydrides, successful strategies involve nanoconfinement, nanosizing, and the incorporation of nanocatalysts. This review further addresses the points to future research directions in the hope of ushering in the practical applications of hydrogen storage materials.
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Affiliation(s)
- Yunting Wang
- Institute of Chemical Sciences and Engineering, École polytechnique fédérale de Lausanne (EPFL), CH-1950 Sion, Switzerland.
- Empa Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Yudong Xue
- Institute of Chemical Sciences and Engineering, École polytechnique fédérale de Lausanne (EPFL), CH-1950 Sion, Switzerland.
| | - Andreas Züttel
- Institute of Chemical Sciences and Engineering, École polytechnique fédérale de Lausanne (EPFL), CH-1950 Sion, Switzerland.
- Empa Materials Science and Technology, 8600 Dübendorf, Switzerland
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2
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Surfactant Induced Synthesis of LiAlH4 and NaAlH4 Nanoparticles for Hydrogen Storage. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12094742] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
LiAlH4 and NaAlH4 are considered to be promising hydrogen storage materials due to their high hydrogen density. However, their practical use is hampered by the lack of hydrogen reversibility along with poor kinetics. Nanosizing is an effective strategy to enable hydrogen reversibility under practical conditions. However, this has remained elusive as the synthesis of alanate nanoparticles has not been explored. Herein, a simple solvent evaporation method is demonstrated to assemble alanate nanoparticles with the use of surfactants as a stabilizer. More importantly, the roles of the surfactants in enabling control over particle size and morphology was determined. Surfactants with long linear carbon chains and matching the hard character of alanates are more prone to lead to the formation of small particles of ~10 nm due to steric hindrance. This can result in significant shifts in the temperature for hydrogen release.
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3
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Structure, Properties, and Phase Transformations of Water Nanoconfined between Brucite-like Layers: The Role of Wall Surface Polarity. MATERIALS 2022; 15:ma15093043. [PMID: 35591378 PMCID: PMC9100153 DOI: 10.3390/ma15093043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/20/2022] [Accepted: 04/20/2022] [Indexed: 02/01/2023]
Abstract
The interaction of water with confining surfaces is primarily governed by the wetting properties of the wall material-in particular, whether it is hydrophobic or hydrophilic. The hydrophobicity or hydrophilicity itself is determined primarily by the atomic structure and polarity of the surface groups. In the present work, we used molecular dynamics to study the structure and properties of nanoscale water layers confined between layered metal hydroxide surfaces with a brucite-like structure. The influence of the surface polarity of the confining material on the properties of nanoconfined water was studied in the pressure range of 0.1-10 GPa. This pressure range is relevant for many geodynamic phenomena, hydrocarbon recovery, contact spots of tribological systems, and heterogeneous materials under extreme mechanical loading. Two phase transitions were identified in water confined within 2 nm wide slit-shaped nanopores: (1) at p1 = 3.3-3.4 GPa, the liquid transforms to a solid phase with a hexagonal close-packed (HCP) crystal structure, and (2) at p2 = 6.7-7.1 GPa, a further transformation to face-centered cubic (FCC) crystals occurs. It was found that the behavior of the confined water radically changes when the partial charges (and, therefore, the surface polarity) are reduced. In this case, water transforms directly from the liquid phase to an FCC-like phase at 3.2-3.3 GPa. Numerical simulations enabled determination of the amount of hydrogen bonding and diffusivity of nanoconfined water, as well as the relationship between pressure and volumetric strain.
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Comanescu C. Complex Metal Borohydrides: From Laboratory Oddities to Prime Candidates in Energy Storage Applications. MATERIALS (BASEL, SWITZERLAND) 2022; 15:2286. [PMID: 35329738 PMCID: PMC8949998 DOI: 10.3390/ma15062286] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/26/2022] [Accepted: 03/11/2022] [Indexed: 01/27/2023]
Abstract
Despite being the lightest element in the periodic table, hydrogen poses many risks regarding its production, storage, and transport, but it is also the one element promising pollution-free energy for the planet, energy reliability, and sustainability. Development of such novel materials conveying a hydrogen source face stringent scrutiny from both a scientific and a safety point of view: they are required to have a high hydrogen wt.% storage capacity, must store hydrogen in a safe manner (i.e., by chemically binding it), and should exhibit controlled, and preferably rapid, absorption-desorption kinetics. Even the most advanced composites today face the difficult task of overcoming the harsh re-hydrogenation conditions (elevated temperature, high hydrogen pressure). Traditionally, the most utilized materials have been RMH (reactive metal hydrides) and complex metal borohydrides M(BH4)x (M: main group or transition metal; x: valence of M), often along with metal amides or various additives serving as catalysts (Pd2+, Ti4+ etc.). Through destabilization (kinetic or thermodynamic), M(BH4)x can effectively lower their dehydrogenation enthalpy, providing for a faster reaction occurring at a lower temperature onset. The present review summarizes the recent scientific results on various metal borohydrides, aiming to present the current state-of-the-art on such hydrogen storage materials, while trying to analyze the pros and cons of each material regarding its thermodynamic and kinetic behavior in hydrogenation studies.
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Affiliation(s)
- Cezar Comanescu
- National Institute of Materials Physics, 405A Atomiștilor St., 077125 Magurele, Romania
- Inorganic Chemistry Department, Politehnica University of Bucharest, 1 Polizu St., 011061 Bucharest, Romania
- Faculty of Physics, University of Bucharest, 405, Atomiștilor St., 077125 Magurele, Romania
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5
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Do HW, Kim H, Cho ES. Enhanced hydrogen storage kinetics and air stability of nanoconfined NaAlH 4 in graphene oxide framework. RSC Adv 2021; 11:32533-32540. [PMID: 35493568 PMCID: PMC9041783 DOI: 10.1039/d1ra05111c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 09/25/2021] [Indexed: 11/23/2022] Open
Abstract
With a growing concern over climate change, hydrogen offers a wide range of opportunities for decarbonization and provides a flexibility in overall energy systems. While hydrogen energy is already plugged into industrial sectors, a physical hydrogen storage system poses a formidable challenge, giving momentum for safe and efficient solid-state hydrogen storage. Accommodating such demands, sodium alanate (NaAlH4) has been considered one of the candidate materials due to its high storage capacity. However, it requires a high temperature for hydrogen desorption and becomes inactive irreversibly upon air-exposure. To enhance sluggish reaction kinetics and reduce the hydrogen desorption temperature, NaAlH4 can be confined into a porous nanoscaffold; however, nanoconfined NaAlH4 with sufficient hydrogen storage performance and competent stability has not been demonstrated so far. In this work, we demonstrate a simultaneously enhanced hydrogen storage performance and air-stability for NaAlH4 particles confined in a nanoporous graphene oxide framework (GOF). The structure of the GOF was elaborately optimized as a nanoscaffold, and NaAlH4 was infiltrated into the pores of the GOF via incipient wetness impregnation. As a result of the nanoconfinement, both the onset temperature and activation energy for hydrogen desorption of NaAlH4 are significantly decreased without transition metal catalysts, while simultaneously achieving the stability under ambient conditions. NaAlH4 nanoconfined in a graphene oxide framework (NaAlH4@GOF) showed significantly enhanced hydrogen storage kinetics as well as improved oxidative stability under ambient conditions.![]()
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Affiliation(s)
- Hyung Wan Do
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | - HyeonJi Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | - Eun Seon Cho
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
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6
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Cho Y, Li S, Snider JL, Marple MAT, Strange NA, Sugar JD, El Gabaly F, Schneemann A, Kang S, Kang MH, Park H, Park J, Wan LF, Mason HE, Allendorf MD, Wood BC, Cho ES, Stavila V. Reversing the Irreversible: Thermodynamic Stabilization of LiAlH 4 Nanoconfined Within a Nitrogen-Doped Carbon Host. ACS NANO 2021; 15:10163-10174. [PMID: 34029480 DOI: 10.1021/acsnano.1c02079] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A general problem when designing functional nanomaterials for energy storage is the lack of control over the stability and reactivity of metastable phases. Using the high-capacity hydrogen storage candidate LiAlH4 as an exemplar, we demonstrate an alternative approach to the thermodynamic stabilization of metastable metal hydrides by coordination to nitrogen binding sites within the nanopores of N-doped CMK-3 carbon (NCMK-3). The resulting LiAlH4@NCMK-3 material releases H2 at temperatures as low as 126 °C with full decomposition below 240 °C, bypassing the usual Li3AlH6 intermediate observed in bulk. Moreover, >80% of LiAlH4 can be regenerated under 100 MPa H2, a feat previously thought to be impossible. Nitrogen sites are critical to these improvements, as no reversibility is observed with undoped CMK-3. Density functional theory predicts a drastically reduced Al-H bond dissociation energy and supports the observed change in the reaction pathway. The calculations also provide a rationale for the solid-state reversibility, which derives from the combined effects of nanoconfinement, Li adatom formation, and charge redistribution between the metal hydride and the host.
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Affiliation(s)
- YongJun Cho
- Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United States
- Department of Chemical and Biomolecular Engineering (BK21+ Program), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Sichi Li
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, United States
| | - Jonathan L Snider
- Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United States
| | - Maxwell A T Marple
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, United States
| | - Nicholas A Strange
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Joshua D Sugar
- Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United States
| | - Farid El Gabaly
- Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United States
| | - Andreas Schneemann
- Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United States
| | - Sungsu Kang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Min-Ho Kang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Hayoung Park
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Jungwon Park
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Liwen F Wan
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, United States
| | - Harris E Mason
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, United States
| | - Mark D Allendorf
- Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United States
| | - Brandon C Wood
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, United States
| | - Eun Seon Cho
- Department of Chemical and Biomolecular Engineering (BK21+ Program), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Vitalie Stavila
- Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United States
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7
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Paliwoda D, Comboni D, Poręba T, Hanfland M, Alabarse F, Maurin D, Michel T, Demirci UB, Rouquette J, di Renzo F, van der Lee A, Bernard S, Haines J. Anomalous Volume Changes in the Siliceous Zeolite Theta-1 TON due to Hydrogen Insertion under High-Pressure, High-Temperature Conditions. J Phys Chem Lett 2021; 12:5059-5063. [PMID: 34019420 DOI: 10.1021/acs.jpclett.1c00965] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
High-pressure X-ray diffraction and Raman spectroscopy in a diamond anvil cell were used to study the insertion of the chemical hydrogen storage material, ammonia borane, in the one-dimensional pores of the zeolite theta-1 TON. Heating of this material up to 300 °C under pressures up to 5 GPa resulted in the release of a significant amount of hydrogen due to the conversion of ammonia borane confined in the channels of TON and outside the zeolite to polyaminoborane and then polyiminoborane chains. The filling of TON with hydrogen resulted in a much greater increase in unit cell volume than that corresponding to thermal expansion of normal compact inorganic solids. This process at high temperature is accompanied by a phase transition from the collapsed high-pressure Pbn21 form to the more symmetric Cmc21 phase with expanded pores. This material has a high capacity for hydrogen adsorption under high-temperature, high-pressure conditions.
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Affiliation(s)
- Damian Paliwoda
- ICGM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | | | | | | | | | - David Maurin
- L2C, Université de Montpellier, CNRS, 34095 Montpellier, France
| | - Thierry Michel
- L2C, Université de Montpellier, CNRS, 34095 Montpellier, France
| | - Umit B Demirci
- IEM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Jérôme Rouquette
- ICGM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | | | - Arie van der Lee
- IEM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Samuel Bernard
- CNRS, IRCER, UMR 7315, University of Limoges, 87000 Limoges, France
| | - Julien Haines
- ICGM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
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8
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Review on the effect of metal oxides as surface coatings on hydrogen storage properties of porous and non-porous materials. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-020-01466-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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Simulation of nanosizing effects in the decomposition of Ca(BH4)2 through atomistic thin film models. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-020-04326-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Ivanov MY, Poryvaev AS, Polyukhov DM, Prikhod'ko SA, Adonin NY, Fedin MV. Nanoconfinement effects on structural anomalies in imidazolium ionic liquids. NANOSCALE 2020; 12:23480-23487. [PMID: 33174581 DOI: 10.1039/d0nr06961b] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Imidazolium Ionic Liquids (ILs) have been found to exhibit unusual nanostructuring behavior below their glass transition temperatures (Tg), which is ascribed to rearrangements in nonpolar domains formed by segregated alkyl chains. However, the dimensions required for such highly cooperative bulk phenomena are still unknown. In this work, we for the first time, investigate the effect of nanoconfinement on structural anomalies in imidazolium ILs. For this purpose, a series of ILs were embedded into the cavities of metal-organic framework (MOF) ZIF-8 and investigated using spin probes and Electron Paramagnetic Resonance (EPR) spectroscopy. The unusual nanostructuring near Tg, previously known for bulk ILs, was also observed for such nanoconfined ILs, and the amplitude of the anomaly was found to be dependent on the structure of the IL, thus showing the effects of molecular packing inside the MOF cavity. The first observation of structural anomalies in nanoconfined ILs opens perspectives for designing smart materials exhibiting these phenomena, and engaging MOFs as platforms creates the basis for potential applications of such functionalities.
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Affiliation(s)
- Mikhail Yu Ivanov
- International Tomography Center SB RAS, Institutskaya Street 3a, 630090 Novosibirsk, Russia.
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11
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Yu S, Song S, Li R, Fang B. The lightest solid meets the lightest gas: an overview of carbon aerogels and their composites for hydrogen related applications. NANOSCALE 2020; 12:19536-19556. [PMID: 32968741 DOI: 10.1039/d0nr05050d] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Hydrogen, a renewable and recyclable energy, has been regarded as the best solution for global energy supply in the 21st century. Hydrogen production, hydrogen storage and hydrogen sensing are three most important aspects for hydrogen economy. Interestingly, the lightest solid, carbon aerogels (CAs), has found wide applications in these aspects due to its unique characteristics including large specific surface area, hierarchical porous structure, high electrical conductivity, superb chemical stability, and low fabrication cost. Herein, various fabrication strategies of CAs are presented, and their applications in the three most important aspects are comprehensively reviewed. In addition, the challenges and prospects are also discussed. In the light of the recent progress in CAs for hydrogen-related applications, this review provides a comprehensive assessment on materials selection, synthesis, hydrogen adsorption characteristics of CAs and catalytic activity of CA-supported nanocatalysts, offering a strategic guide to build a close connection between CAs and hydrogen economy.
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Affiliation(s)
- Sheng Yu
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou, Zhejiang Province 310024, China
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12
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Baran A, Polański M. Magnesium-Based Materials for Hydrogen Storage-A Scope Review. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3993. [PMID: 32916910 PMCID: PMC7559164 DOI: 10.3390/ma13183993] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 09/03/2020] [Accepted: 09/05/2020] [Indexed: 11/16/2022]
Abstract
Magnesium hydride and selected magnesium-based ternary hydride (Mg2FeH6, Mg2NiH4, and Mg2CoH5) syntheses and modification methods, as well as the properties of the obtained materials, which are modified mostly by mechanical synthesis or milling, are reviewed in this work. The roles of selected additives (oxides, halides, and intermetallics), nanostructurization, polymorphic transformations, and cyclic stability are described. Despite the many years of investigations related to these hydrides and the significant number of different additives used, there are still many unknown factors that affect their hydrogen storage properties, reaction yield, and stability. The described compounds seem to be extremely interesting from a theoretical point of view. However, their practical application still remains debatable.
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Affiliation(s)
| | - Marek Polański
- Department of Functional Materials and Hydrogen Technology, Military University of Technology, Kaliskiego 2 Street, 00-908 Warsaw, Poland;
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13
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Batista LN, Vasconcelos TL, Senna CA, Archanjo BS, Miguez E, A S San Gil R, Tavares MIB. Impact of nanoconfinement on acetylacetone Equilibria in Ordered Mesoporous Silicates. NANOTECHNOLOGY 2020; 31:355706. [PMID: 32434178 DOI: 10.1088/1361-6528/ab94db] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanoconfinement is one of the most intriguing nanoscale effects and affects several physical and chemical properties of molecules and materials, including viscosity, reaction kinetics, and glass transition temperature. In this work, liquid nuclear magnetic resonance (NMR) was used to analyze the behavior of 2,4-pentadienone in ordered mesoporous materials with a pore diameter of between 3 and 10 nm. The liquid NMR results showed meaningful changes in the hydrogen chemical shift and the keto-enol chemical equilibrium, which were associated with the pore diameter, allowing the authors to observe the effects of nanoconfinement. An interesting phenomenon was observed where the chemical equilibria of 2,4-pentadienone confined in a mesoporous material with a pore diameter of 3.5 nm was similar to that obtained with free (bulk) 2,4-pentadienone in larger pore materials. Another interesting result was observed for the enthalpy and entropy of the tautomeric equilibria of 2,4-pentadienone confined in mesoporous materials with a 5.5 nm pore diameter being -7.9 kJ mol-1 and -15.9 J mol-1.K. These values are similar to those obtained by dimethyl sulfoxide. This phenomenon indicates the possible use of ordered mesoporous materials as a reaction substitute in organic solvents. It was further observed that while the values of enthalpy (ΔH) and entropy (ΔS) had been modified by confinement, the Gibbs free energy (ΔG) value remained closer to that observed in free (bulk) 2,4-pentadienone. It is expected that this study will help in understanding the effects of nanoconfinement and provide a simple method to employ NMR techniques to analyze these phenomena.
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Affiliation(s)
- Luciano N Batista
- Instituto Nacional de Metrologia, Qualidade e Tecnologia, Avenida Nossa Senhora das Graças, 50, 25250020, Duque de Caxias, Rio de Janeiro, Brazil. Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro, Av. Horácio Macedo, 2030, 21941-598, Rio de Janeiro, Brazil
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14
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Schneemann A, Wan LF, Lipton AS, Liu YS, Snider JL, Baker AA, Sugar JD, Spataru CD, Guo J, Autrey TS, Jørgensen M, Jensen TR, Wood BC, Allendorf MD, Stavila V. Nanoconfinement of Molecular Magnesium Borohydride Captured in a Bipyridine-Functionalized Metal-Organic Framework. ACS NANO 2020; 14:10294-10304. [PMID: 32658451 DOI: 10.1021/acsnano.0c03764] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The lower limit of metal hydride nanoconfinement is demonstrated through the coordination of a molecular hydride species to binding sites inside the pores of a metal-organic framework (MOF). Magnesium borohydride, which has a high hydrogen capacity, is incorporated into the pores of UiO-67bpy (Zr6O4(OH)4(bpydc)6 with bpydc2- = 2,2'-bipyridine-5,5'-dicarboxylate) by solvent impregnation. The MOF retained its long-range order, and transmission electron microscopy and elemental mapping confirmed the retention of the crystal morphology and revealed a homogeneous distribution of the hydride within the MOF host. Notably, the B-, N-, and Mg-edge XAS data confirm the coordination of Mg(II) to the N atoms of the chelating bipyridine groups. In situ 11B MAS NMR studies helped elucidate the reaction mechanism and revealed that complete hydrogen release from Mg(BH4)2 occurs as low as 200 °C. Sieverts and thermogravimetric measurements indicate an increase in the rate of hydrogen release, with the onset of hydrogen desorption as low as 120 °C, which is approximately 150 °C lower than that of the bulk material. Furthermore, density functional theory calculations support the improved dehydrogenation properties and confirm the drastically lower activation energy for B-H bond dissociation.
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Affiliation(s)
- Andreas Schneemann
- Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United States
| | - Liwen F Wan
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, United States
| | - Andrew S Lipton
- Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Yi-Sheng Liu
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Jonathan L Snider
- Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United States
| | - Alexander A Baker
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, United States
| | - Joshua D Sugar
- Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United States
| | - Catalin D Spataru
- Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United States
| | - Jinghua Guo
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Tom S Autrey
- Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Mathias Jørgensen
- Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United States
- Center for Materials Crystallography at the Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Torben R Jensen
- Center for Materials Crystallography at the Department of Chemistry and the Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark
| | - Brandon C Wood
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, United States
| | - Mark D Allendorf
- Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United States
| | - Vitalie Stavila
- Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550, United States
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15
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Wu R, Zhang X, Liu Y, Zhang L, Hu J, Gao M, Pan H. A Unique Double-Layered Carbon Nanobowl-Confined Lithium Borohydride for Highly Reversible Hydrogen Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2001963. [PMID: 32613757 DOI: 10.1002/smll.202001963] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/29/2020] [Indexed: 06/11/2023]
Abstract
Poor reversibility and high desorption temperature restricts the practical use of lithium borohydride (LiBH4 ) as an advanced hydrogen store. Herein, a LiBH4 composite confined in unique double-layered carbon nanobowls prepared by a facile melt infiltration process is demonstrated, thanks to powerful capillary effect under 100 bar of H2 pressure. The gradual formation of double-layered carbon nanobowls is witnessed by transmission electron microscopy (TEM) observation. Benefiting from the nanoconfinement effect and catalytic function of carbon, this composite releases hydrogen from 225 °C and peaks at 353 °C, with a hydrogen release amount up to 10.9 wt%. The peak temperature of dehydriding is lowered by 112 °C compared with bulk LiBH4 . More importantly, the composite readily desorbs and absorbs ≈8.5 wt% of H2 at 300 °C and 100 bar H2 , showing a significant reversibility of hydrogen storage. Such a high reversible capacity has not ever been observed under the identical conditions. The usable volumetric energy density reaches as high as 82.4 g L-1 with considerable dehydriding kinetics. The findings provide insights in the design and development of nanosized complex hydrides for on-board applications.
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Affiliation(s)
- Ruyan Wu
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Xin Zhang
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yongfeng Liu
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Lingchao Zhang
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jianjiang Hu
- School of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, China
| | - Mingxia Gao
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Hongge Pan
- State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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16
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Abstract
The interaction of hydrogen with solids and the mechanisms of hydride formation experience significant changes in nanomaterials due to a number of structural features. This review aims at illustrating the design principles that have recently inspired the development of new nanomaterials for hydrogen storage. After a general discussion about the influence of nanomaterials’ microstructure on their hydrogen sorption properties, several scientific cases and hot topics are illustrated surveying various classes of materials. These include bulk-like nanomaterials processed by mechanochemical routes, thin films and multilayers, nano-objects with composite architectures such as core–shell or composite nanoparticles, and nanoparticles on porous or graphene-like supports. Finally, selected examples of recent in situ studies of metal–hydride transformation mechanisms using microscopy and spectroscopy techniques are highlighted.
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Hydrogen Accumulation and Distribution in Titanium Coatings at Gas-Phase Hydrogenation. METALS 2020. [DOI: 10.3390/met10070880] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This work is devoted to studying the accumulation of hydrogen in titanium coatings to use a completely new concept of hydrogen accumulators based on a system of easily replaceable cartridges. Modern hydrogen accumulators based on magnesium powder have several problems associated with uneven heating during hydrogen desorption. Increasing the efficiency of hydrogen accumulators and the possibility of their reuse and/or repair remains a topical problem. For the analysis of the microstructure of the received titanium coatings, scanning electron microscopy (SEM) was used, the structural-phase state was studied using x-ray diffraction (XRD) analysis. The coatings were hydrogenation by gas-phase saturation at 450–550 °C. Increased film thickness reduced the storage capacity of coatings. Besides hydrogenation at 450 °C, 20 µm of titanium coatings accumulated 3.96 wt.%, while 80 µm of coatings accumulated 3.98 wt.%. The chemical composition of the coatings before and after the hydrogenation was controlled using glow-discharge optical emission spectroscopy.
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A Review of the MSCA ITN ECOSTORE—Novel Complex Metal Hydrides for Efficient and Compact Storage of Renewable Energy as Hydrogen and Electricity. INORGANICS 2020. [DOI: 10.3390/inorganics8030017] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Hydrogen as an energy carrier is very versatile in energy storage applications. Developments in novel, sustainable technologies towards a CO2-free society are needed and the exploration of all-solid-state batteries (ASSBs) as well as solid-state hydrogen storage applications based on metal hydrides can provide solutions for such technologies. However, there are still many technical challenges for both hydrogen storage material and ASSBs related to designing low-cost materials with low-environmental impact. The current materials considered for all-solid-state batteries should have high conductivities for Na+, Mg2+ and Ca2+, while Al3+-based compounds are often marginalised due to the lack of suitable electrode and electrolyte materials. In hydrogen storage materials, the sluggish kinetic behaviour of solid-state hydride materials is one of the key constraints that limit their practical uses. Therefore, it is necessary to overcome the kinetic issues of hydride materials before discussing and considering them on the system level. This review summarizes the achievements of the Marie Skłodowska-Curie Actions (MSCA) innovative training network (ITN) ECOSTORE, the aim of which was the investigation of different aspects of (complex) metal hydride materials. Advances in battery and hydrogen storage materials for the efficient and compact storage of renewable energy production are discussed.
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Enhanced Stability of Li-RHC Embedded in an Adaptive TPX™ Polymer Scaffold. MATERIALS 2020; 13:ma13040991. [PMID: 32098426 PMCID: PMC7078616 DOI: 10.3390/ma13040991] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/06/2020] [Accepted: 02/20/2020] [Indexed: 11/29/2022]
Abstract
In this work, the possibility of creating a polymer-based adaptive scaffold for improving the hydrogen storage properties of the system 2LiH+MgB2+7.5(3TiCl3·AlCl3) was studied. Because of its chemical stability toward the hydrogen storage material, poly(4-methyl-1-pentene) or in-short TPXTM was chosen as the candidate for the scaffolding structure. The composite system was obtained after ball milling of 2LiH+MgB2+7.5(3TiCl3·AlCl3) and a solution of TPXTM in cyclohexane. The investigations carried out over the span of ten hydrogenation/de-hydrogenation cycles indicate that the material containing TPXTM possesses a higher degree of hydrogen storage stability.
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Puszkiel J, Gasnier A, Amica G, Gennari F. Tuning LiBH 4 for Hydrogen Storage: Destabilization, Additive, and Nanoconfinement Approaches. Molecules 2019; 25:molecules25010163. [PMID: 31906111 PMCID: PMC6982930 DOI: 10.3390/molecules25010163] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/11/2019] [Accepted: 12/21/2019] [Indexed: 02/04/2023] Open
Abstract
Hydrogen technology has become essential to fulfill our mobile and stationary energy needs in a global low–carbon energy system. The non-renewability of fossil fuels and the increasing environmental problems caused by our fossil fuel–running economy have led to our efforts towards the application of hydrogen as an energy vector. However, the development of volumetric and gravimetric efficient hydrogen storage media is still to be addressed. LiBH4 is one of the most interesting media to store hydrogen as a compound due to its large gravimetric (18.5 wt.%) and volumetric (121 kgH2/m3) hydrogen densities. In this review, we focus on some of the main explored approaches to tune the thermodynamics and kinetics of LiBH4: (I) LiBH4 + MgH2 destabilized system, (II) metal and metal hydride added LiBH4, (III) destabilization of LiBH4 by rare-earth metal hydrides, and (IV) the nanoconfinement of LiBH4 and destabilized LiBH4 hydride systems. Thorough discussions about the reaction pathways, destabilizing and catalytic effects of metals and metal hydrides, novel synthesis processes of rare earth destabilizing agents, and all the essential aspects of nanoconfinement are led.
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Affiliation(s)
- Julián Puszkiel
- Correspondence: ; Tel.: +54-294-4445118; Fax: +54-294-4445290
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Şen B, Aygün A, Şavk A, Gülbağça F, Gülbay SK, Çalımlı MH, Şen F. Binary Palladium–Nickel/Vulcan carbon-based nanoparticles as highly efficient catalyst for hydrogen evolution reaction at room temperature. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.04.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Using Ball Milling for Modification of the Hydrogenation/Dehydrogenation Process in Magnesium-Based Hydrogen Storage Materials: An Overview. METALS 2019. [DOI: 10.3390/met9070768] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Magnesium-based hydrogen storage materials are considered to be one of the most promising solid-state hydrogen storage materials due to their large hydrogen storage capacity and low cost. However, slow hydrogen absorption/desorption rate and excessive hydrogen absorption/desorption temperature limit the application of magnesium-based hydrogen storage materials. The present paper reviews recent progress in improving the hydrogen storage properties by element substitution and additives. Ball milling is the promising technology for preparing magnesium-based hydrogen storage materials. The research and development of approaches for modifying magnesium-based hydrogen storage materials prepared by ball milling is systematically expounded. It is concluded that ball milling can significantly improve the kinetic and electrochemical properties of magnesium-based hydrogen storage materials and increase the hydrogen storage capacity. In the future, the research of magnesium-based hydrogen storage materials should be developed in terms of hydrogen storage mechanism, computer design of materials and development of a more optimized catalytic system.
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Zhou C, Li C, Li Y, Zhang Q. Enhanced hydrogen storage kinetics of an Mg-Pr-Al composite by in situ formed Pr 3Al 11 nanoparticles. Dalton Trans 2019; 48:7735-7742. [PMID: 31066431 DOI: 10.1039/c9dt01214a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Slow hydrogen sorption kinetics is one of the challenges facing practical applications of MgH2. To improve the hydrogen sorption kinetics, an Mg-Pr-Al composite is prepared by ball milling of a 14MgH2 + Pr + Al powder mixture. During hydrogenation and dehydrogenation processes of the Mg-Pr-Al composite, two reversible side reactions, i.e. 2PrH2 + H2 = 2PrH3 and Mg17Al12 + 17H2 = 17MgH2 + 12Al, occur accompanying hydrogen adsorption and desorption of the Mg-H2 system. The in situ formed Pr3Al11 phase in the activated Mg-Pr-Al composite is stable during further hydrogen adsorption and desorption processes, which plays a role in inhibiting growth of Mg crystallites. Hence, the improvement of hydrogen sorption kinetics for the Mg-Pr-Al composite is ascribed to the inhibiting role of Pr3Al11 in crystallite growth as well as the catalytic effect of PrH3/PrH2 on hydrogen sorption. These findings provide an important guidance for developing new Mg-based materials with superior hydrogen storage properties.
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Affiliation(s)
- Caiqin Zhou
- School of Materials Science and Engineering, Anhui University of Technology, Maanshan 243002, China.
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24
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Liu YS, Jeong S, White JL, Feng X, Seon Cho E, Stavila V, Allendorf MD, Urban JJ, Guo J. In-Situ/Operando X-ray Characterization of Metal Hydrides. Chemphyschem 2019; 20:1261-1271. [PMID: 30737862 DOI: 10.1002/cphc.201801185] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 02/06/2019] [Indexed: 11/09/2022]
Abstract
In this article, the capabilities of soft and hard X-ray techniques, including X-ray absorption (XAS), soft X-ray emission spectroscopy (XES), resonant inelastic soft X-ray scattering (RIXS), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD), and their application to solid-state hydrogen storage materials are presented. These characterization tools are indispensable for interrogating hydrogen storage materials at the relevant length scales of fundamental interest, which range from the micron scale to nanometer dimensions. Since nanostructuring is now well established as an avenue to improve the thermodynamics and kinetics of hydrogen release and uptake, due to properties such as reduced mean free paths of transport and increased surface-to-volume ratio, it becomes of critical importance to explicitly identify structure-property relationships on the nanometer scale. X-ray diffraction and spectroscopy are effective tools for probing size-, shape-, and structure-dependent material properties at the nanoscale. This article also discusses the recent development of in-situ soft X-ray spectroscopy cells, which enable investigation of critical solid/liquid or solid/gas interfaces under more practical conditions. These unique tools are providing a window into the thermodynamics and kinetics of hydrogenation and dehydrogenation reactions and informing a quantitative understanding of the fundamental energetics of hydrogen storage processes at the microscopic level. In particular, in-situ soft X-ray spectroscopies can be utilized to probe the formation of intermediate species, byproducts, as well as the changes in morphology and effect of additives, which all can greatly affect the hydrogen storage capacity, kinetics, thermodynamics, and reversibility. A few examples using soft X-ray spectroscopies to study these materials are discussed to demonstrate how these powerful characterization tools could be helpful to further understand the hydrogen storage systems.
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Affiliation(s)
- Yi-Sheng Liu
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Sohee Jeong
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - James L White
- Sandia National Laboratories, Livermore, CA 94551, USA
| | - Xuefei Feng
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Eun Seon Cho
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.,Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST)
| | | | | | - Jeffrey J Urban
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Jinghua Guo
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.,Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
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26
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Yang K, Huang LJ, Wang YX, Du YC, Tang JG, Wang Y, Cheng MM, Zhang Y, Kipper MJ, Belfiore LA, Wickramasinghe SR. Graphene oxide/nanometal composite membranes for nanofiltration: synthesis, mass transport mechanism, and applications. NEW J CHEM 2019. [DOI: 10.1039/c8nj06045b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We reviewed the recent developments in graphene-based composite membranes and discussed their challenges in this paper.
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27
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Liu C, Zhang T, Ye X, Zhang X, Zhang S. Structural and electronic properties of KY(BH 4) 4: DFT+U study. RSC Adv 2018; 8:34374-34379. [PMID: 35548636 PMCID: PMC9087045 DOI: 10.1039/c8ra06742b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 09/28/2018] [Indexed: 11/24/2022] Open
Abstract
The structure, composition, and electronic property of mixed-cation borohydrides are of significant importance for understanding and improving their thermodynamic and kinetic activities. Conventional density functional theory (DFT) fails to correctly describe the electronic structure of the system due to insufficient cancellation of the self-interaction energy and underestimation of the band gap. In the present work, we present a systematic investigation of the structural and electronic properties of KY(BH4)4 for the first time at the DFT+U level of theory. It is found that the LDA+U method underestimates the lattice volume by ∼17.36%, while the PBE+U and PW91+U methods show good agreement with the experimental value at U = 3 and U = 4, respectively. The total energy of KY(BH4)4 calculated by PW91+U method at U = 4 is 0.97 eV lower than that calculated by PBE+U method at U = 3. We suppose that the PW91+U method is more suitable for the structural and electronic properties study of KY(BH4)4 due to the lower total energy. K+ connects with BH4 - complex through electrostatic attraction, while weak covalent interaction exists between Y3+ and BH4 - complex.
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Affiliation(s)
- Chuan Liu
- College of Chemistry and Materials Engineering, Anhui Science and Technology University Fengyang Anhui Province 233100 China
| | - Ting Zhang
- College of Chemistry and Materials Engineering, Anhui Science and Technology University Fengyang Anhui Province 233100 China
| | - Xiangju Ye
- College of Chemistry and Materials Engineering, Anhui Science and Technology University Fengyang Anhui Province 233100 China
| | - Xuemei Zhang
- College of Chemistry and Materials Engineering, Anhui Science and Technology University Fengyang Anhui Province 233100 China
| | - Shengli Zhang
- Institute of Optoelectronics & Nanomaterials Herbert Gleiter Institute of Nanoscience, College of Materials Science and Engineering, Nanjing University of Science and Technology Nanjing 210094 China
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28
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Schneemann A, White JL, Kang S, Jeong S, Wan LF, Cho ES, Heo TW, Prendergast D, Urban JJ, Wood BC, Allendorf MD, Stavila V. Nanostructured Metal Hydrides for Hydrogen Storage. Chem Rev 2018; 118:10775-10839. [PMID: 30277071 DOI: 10.1021/acs.chemrev.8b00313] [Citation(s) in RCA: 146] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Knowledge and foundational understanding of phenomena associated with the behavior of materials at the nanoscale is one of the key scientific challenges toward a sustainable energy future. Size reduction from bulk to the nanoscale leads to a variety of exciting and anomalous phenomena due to enhanced surface-to-volume ratio, reduced transport length, and tunable nanointerfaces. Nanostructured metal hydrides are an important class of materials with significant potential for energy storage applications. Hydrogen storage in nanoscale metal hydrides has been recognized as a potentially transformative technology, and the field is now growing steadily due to the ability to tune the material properties more independently and drastically compared to those of their bulk counterparts. The numerous advantages of nanostructured metal hydrides compared to bulk include improved reversibility, altered heats of hydrogen absorption/desorption, nanointerfacial reaction pathways with faster rates, and new surface states capable of activating chemical bonds. This review aims to summarize the progress to date in the area of nanostructured metal hydrides and intends to understand and explain the underpinnings of the innovative concepts and strategies developed over the past decade to tune the thermodynamics and kinetics of hydrogen storage reactions. These recent achievements have the potential to propel further the prospects of tuning the hydride properties at nanoscale, with several promising directions and strategies that could lead to the next generation of solid-state materials for hydrogen storage applications.
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Affiliation(s)
- Andreas Schneemann
- Sandia National Laboratories , Livermore , California 94551 , United States
| | - James L White
- Sandia National Laboratories , Livermore , California 94551 , United States
| | - ShinYoung Kang
- Lawrence Livermore National Laboratory , Livermore , California 94550 , United States
| | - Sohee Jeong
- Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Liwen F Wan
- Lawrence Livermore National Laboratory , Livermore , California 94550 , United States
| | - Eun Seon Cho
- Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Department of Chemical and Biomolecular Engineering , Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 34141 , Republic of Korea
| | - Tae Wook Heo
- Lawrence Livermore National Laboratory , Livermore , California 94550 , United States
| | - David Prendergast
- Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Jeffrey J Urban
- Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Brandon C Wood
- Lawrence Livermore National Laboratory , Livermore , California 94550 , United States
| | - Mark D Allendorf
- Sandia National Laboratories , Livermore , California 94551 , United States
| | - Vitalie Stavila
- Sandia National Laboratories , Livermore , California 94551 , United States
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Abstract
Storage of renewable energy remains a key obstacle for the implementation of a carbon free energy system. There is an urgent need to develop a variety of energy storage systems with varying performance, covering both long-term/large-scale and high gravimetric and volumetric densities for stationary and mobile applications. Novel materials with extraordinary properties have the potential to form the basis for technological paradigm shifts. Here, we present metal hydrides as a diverse class of materials with fascinating structures, compositions and properties. These materials can potentially form the basis for novel energy storage technologies as batteries and for hydrogen storage.
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Zang L, Sun W, Liu S, Huang Y, Yuan H, Tao Z, Wang Y. Enhanced Hydrogen Storage Properties and Reversibility of LiBH 4 Confined in Two-Dimensional Ti 3C 2. ACS APPLIED MATERIALS & INTERFACES 2018; 10:19598-19604. [PMID: 29786421 DOI: 10.1021/acsami.8b02327] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
LiBH4 is of particular interest as one of the most promising materials for solid-state hydrogen storage. Herein, LiBH4 is confined into a novel two-dimensional layered Ti3C2 MXene through a facile impregnation method for the first time to improve its hydrogen storage performance. The initial desorption temperature of LiBH4 is significantly reduced, and the de-/rehydrogenation kinetics are remarkably enhanced. It is found that the initial desorption temperature of LiBH4@2Ti3C2 hybrid decreases to 172.6 °C and releases 9.6 wt % hydrogen at 380 °C within 1 h, whereas pristine LiBH4 only releases 3.2 wt % hydrogen under identical conditions. More importantly, the dehydrogenated products can partially rehydrogenate at 300 °C and under 95 bar H2. The nanoconfined effect caused by unique layered structure of Ti3C2 can hinder the particles growth and agglomeration of LiBH4. Meanwhile, Ti3C2 could possess superior effect to destabilize LiBH4. The synergetic effect of destabilization and nanoconfinement contributes to the remarkably lowered desorption temperature and improved de-/rehydrogenation kinetics.
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Fundamental Material Properties of the 2LiBH4-MgH2 Reactive Hydride Composite for Hydrogen Storage: (I) Thermodynamic and Heat Transfer Properties. ENERGIES 2018. [DOI: 10.3390/en11051081] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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The Effects of Nanostructure on the Hydrogen Sorption Properties of Magnesium-Based Metallic Compounds: A Review. CRYSTALS 2018. [DOI: 10.3390/cryst8020106] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Richter B, Ravnsbæk DB, Sharma M, Spyratou A, Hagemann H, Jensen TR. Fluoride substitution in LiBH 4; destabilization and decomposition. Phys Chem Chem Phys 2018; 19:30157-30165. [PMID: 29104996 DOI: 10.1039/c7cp05565j] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluoride substitution in LiBH4 is studied by investigation of LiBH4-LiBF4 mixtures (9 : 1 and 3 : 1). Decomposition was followed by in situ synchrotron radiation X-ray diffraction (in situ SR-PXD), thermogravimetric analysis and differential scanning calorimetry with gas analysis (TGA/DSC-MS) and in situ infrared spectroscopy (in situ FTIR). Upon heating, fluoride substituted LiBH4 forms (LiBH4-xFx) and decomposition occurs, releasing diborane and solid decomposition products. The decomposition temperature is reduced more than fourfold relative to the individual constituents, with decomposition commencing at T = 80 °C. The degree of fluoride substitution is quantified by sequential Rietveld refinement and shows a selective manner of substitution. In situ FTIR experiments reveal formation of bands originating from LiBH4-xFx. Formation of LiF and observation of diborane release implies that the decomposing materials have a composition that facilitates formation of diborane and LiF, i.e. LiBH4-xFx (LiBH3F). An alternative approach for fluoride substitution was performed, by addition of Et3N·3HF to LiBH4, yielding extremely unstable products. Spontaneous decomposition indicates fluoride substitution to have occurred. From our point of view, this is the most significant destabilization effect seen for borohydride materials so far.
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Affiliation(s)
- Bo Richter
- Center for Materials Crystallography, Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark.
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Mondelo-Martell M, Huarte-Larrañaga F, Manthe U. Quantum dynamics of H 2 in a carbon nanotube: Separation of time scales and resonance enhanced tunneling. J Chem Phys 2017; 147:084103. [PMID: 28863521 DOI: 10.1063/1.4995550] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Quantum confinement effects are known to affect the behavior of molecules adsorbed in nanostructured materials. In order to study these effects on the transport of a single molecule through a nanotube, we present a quantum dynamics study on the diffusion of H2 in a narrow (8,0) carbon nanotube in the low pressure limit. Transmission coefficients for the elementary step of the transport process are calculated using the flux correlation function approach and diffusion rates are obtained using the single hopping model. The different time scales associated with the motion in the confined coordinates and the motion along the nanotube's axis are utilized to develop an efficient and numerically exact approach, in which a diabatic basis describing the fast motion in the confined coordinate is employed. Furthermore, an adiabatic approximation separating the dynamics of confined and unbound coordinates is studied. The results obtained within the adiabatic approximation agree almost perfectly with the numerically exact ones. The approaches allow us to accurately study the system's dynamics on the picosecond time scale and resolve resonance structures present in the transmission coefficients. Resonance enhanced tunneling is found to be the dominant transport mechanism at low energies. Comparison with results obtained using transition state theory shows that tunneling significantly increases the diffusion rate at T < 120 K.
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Affiliation(s)
- Manel Mondelo-Martell
- Departament de Ciència de Materials i Química Física and Institut de Química Teòrica i Computacional, Universitat de Barcelona, C/ Martí i Franquès 1, 08028 Barcelona, Spain
| | - Fermín Huarte-Larrañaga
- Departament de Ciència de Materials i Química Física and Institut de Química Teòrica i Computacional, Universitat de Barcelona, C/ Martí i Franquès 1, 08028 Barcelona, Spain
| | - Uwe Manthe
- Theoretische Chemie, Fakultät für Chemie, Universität Bielefeld, Universitätsstr. 25, D-33615 Bielefeld, Germany
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Huen P, Peru F, Charalambopoulou G, Steriotis TA, Jensen TR, Ravnsbæk DB. Nanoconfined NaAlH 4 Conversion Electrodes for Li Batteries. ACS OMEGA 2017; 2:1956-1967. [PMID: 31457554 PMCID: PMC6641067 DOI: 10.1021/acsomega.7b00143] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 04/26/2017] [Indexed: 05/05/2023]
Abstract
In the past, sodium alanate, NaAlH4, has been widely investigated for its capability to store hydrogen, and its potential for improving storage properties through nanoconfinement in carbon scaffolds has been extensively studied. NaAlH4 has recently been considered for Li-ion storage as a conversion-type anode in Li-ion batteries. Here, NaAlH4 nanoconfined in carbon scaffolds as an anode material for Li-ion batteries is reported for the first time. Nanoconfined NaAlH4 was prepared by melt infiltration into mesoporous carbon scaffolds. In the first cycle, the electrochemical reversibility of nanoconfined NaAlH4 was improved from around 30 to 70% compared to that of nonconfined NaAlH4. Cyclic voltammetry revealed that nanoconfinement alters the conversion pathway, and operando powder X-ray diffraction showed that the conversion from NaAlH4 into Na3AlH6 is favored over the formation of LiNa2AlH6. The electrochemical reactivity of the carbon scaffolds has also been investigated to study their contribution to the overall capacity of the electrodes.
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Affiliation(s)
- Priscilla Huen
- Center
for Materials Crystallography, Interdisciplinary Nanoscience Center
and Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Filippo Peru
- National
Center for Scientific Research “Demokritos”, 15310 Agia Paraskevi Attikis, Greece
| | | | - Theodore A. Steriotis
- National
Center for Scientific Research “Demokritos”, 15310 Agia Paraskevi Attikis, Greece
| | - Torben R. Jensen
- Center
for Materials Crystallography, Interdisciplinary Nanoscience Center
and Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark
| | - Dorthe B. Ravnsbæk
- Department
of Physics, Chemistry and Pharmacy, University
of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
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39
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Xia G, Chen X, Zhao Y, Li X, Guo Z, Jensen CM, Gu Q, Yu X. High-Performance Hydrogen Storage Nanoparticles Inside Hierarchical Porous Carbon Nanofibers with Stable Cycling. ACS APPLIED MATERIALS & INTERFACES 2017; 9:15502-15509. [PMID: 28436647 DOI: 10.1021/acsami.7b02589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
An effective route based on space-confined chemical reaction to synthesize uniform Li2Mg(NH)2 nanoparticles is reported. The hierarchical pores inside the one-dimensional carbon nanofibers (CNFs), induced by the creation of well-dispersed Li3N, serve as intelligent nanoreactors for the reaction of Li3N with Mg-containing precursors, resulting in the formation of uniformly discrete Li2Mg(NH)2 nanoparticles. The nanostructured Li2Mg(NH)2 particles inside the CNFs are capable of complete hydrogenation and dehydrogenation at a temperature as low as 105 °C with the suppression of ammonia release. Furthermore, by virtue of the nanosize effects and space-confinement by the porous carbon scaffold, no degradation was observed after 50 de/rehydrogenation cycles at a temperature as low as 130 °C for the as-prepared Li2Mg(NH)2 nanoparticles, indicating excellent reversibility. Moreover, the theoretical calculations demonstrate that the reduction in particle size could significantly enhance the H2 sorption of Li2Mg(NH)2 by decreasing the relative activation energy barrier, which agrees well with our experimental results. This method could represent an effective, general strategy for synthesizing nanoparticles of complex hydrides with stable reversibility and excellent hydrogen storage performance.
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Affiliation(s)
- Guanglin Xia
- Department of Materials Science, Fudan University , Shanghai 200433, China
- Institute for Superconducting and Electronic Materials, University of Wollongong , North Wollongong, NSW 2522, Australia
| | - Xiaowei Chen
- Department of Physics, School of Science, Jimei University , Xiamen 361021, China
| | - Yan Zhao
- Department of Materials Science, Fudan University , Shanghai 200433, China
| | - Xingguo Li
- College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| | - Zaiping Guo
- Institute for Superconducting and Electronic Materials, University of Wollongong , North Wollongong, NSW 2522, Australia
| | - Craig M Jensen
- Department of Chemistry, University of Hawaii at Manoa , 2545 The McCathy Mall, Honolulu, Hawaii 96822-2275, United States
| | - Qinfen Gu
- Australian Synchrotron , Clayton 3168, Australia
| | - Xuebin Yu
- Department of Materials Science, Fudan University , Shanghai 200433, China
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40
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Paskevicius M, Jepsen LH, Schouwink P, Černý R, Ravnsbæk DB, Filinchuk Y, Dornheim M, Besenbacher F, Jensen TR. Metal borohydrides and derivatives – synthesis, structure and properties. Chem Soc Rev 2017; 46:1565-1634. [DOI: 10.1039/c6cs00705h] [Citation(s) in RCA: 262] [Impact Index Per Article: 37.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A comprehensive review of metal borohydrides from synthesis to application.
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Affiliation(s)
- Mark Paskevicius
- Center for Materials Crystallography
- Interdisciplinary Nanoscience Center (iNANO), and Department of Chemistry
- Aarhus University
- DK-8000 Aarhus C
- Denmark
| | - Lars H. Jepsen
- Center for Materials Crystallography
- Interdisciplinary Nanoscience Center (iNANO), and Department of Chemistry
- Aarhus University
- DK-8000 Aarhus C
- Denmark
| | - Pascal Schouwink
- Laboratory of Crystallography
- DQMP
- University of Geneva
- 1211 Geneva
- Switzerland
| | - Radovan Černý
- Laboratory of Crystallography
- DQMP
- University of Geneva
- 1211 Geneva
- Switzerland
| | - Dorthe B. Ravnsbæk
- Department of Physics
- Chemistry and Pharmacy
- University of Southern Denmark
- 5230 Odense M
- Denmark
| | - Yaroslav Filinchuk
- Institute of Condensed Matter and Nanosciences
- Université catholique de Louvain
- B-1348 Louvain-la-Neuve
- Belgium
| | - Martin Dornheim
- Helmholtz-Zentrum Geesthacht
- Department of Nanotechnology
- 21502 Geesthacht
- Germany
| | - Flemming Besenbacher
- Interdisciplinary Nanoscience Center (iNANO) and Department of Physics and Astronomy
- DK-8000 Aarhus C
- Denmark
| | - Torben R. Jensen
- Center for Materials Crystallography
- Interdisciplinary Nanoscience Center (iNANO), and Department of Chemistry
- Aarhus University
- DK-8000 Aarhus C
- Denmark
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41
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Li Y, Ding X, Zhang Q. Self-Printing on Graphitic Nanosheets with Metal Borohydride Nanodots for Hydrogen Storage. Sci Rep 2016; 6:31144. [PMID: 27484735 PMCID: PMC4971464 DOI: 10.1038/srep31144] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 07/12/2016] [Indexed: 11/26/2022] Open
Abstract
Although the synthesis of borohydride nanostructures is sufficiently established for advancement of hydrogen storage, obtaining ultrasmall (sub-10 nm) metal borohydride nanocrystals with excellent dispersibility is extremely challenging because of their high surface energy, exceedingly strong reducibility/hydrophilicity and complicated composition. Here, we demonstrate a mechanical-force-driven self-printing process that enables monodispersed (~6 nm) NaBH4 nanodots to uniformly anchor onto freshly-exfoliated graphitic nanosheets (GNs). Both mechanical-forces and borohydride interaction with GNs stimulate NaBH4 clusters intercalation/absorption into the graphite interlayers acting as a ‘pen’ for writing, which is accomplished by exfoliating GNs with the ‘printed’ borohydrides. These nano-NaBH4@GNs exhibit favorable thermodynamics (decrease in ∆H of ~45%), rapid kinetics (a greater than six-fold increase) and stable de-/re-hydrogenation that retains a high capacity (up to ~5 wt% for NaBH4) compared with those of micro-NaBH4. Our results are helpful in the scalable fabrication of zero-dimensional complex hydrides on two-dimensional supports with enhanced hydrogen storage for potential applications.
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Affiliation(s)
- Yongtao Li
- School of Materials Science and Engineering, Anhui University of Technology, Maanshan 243002, China
| | - Xiaoli Ding
- School of Materials Science and Engineering, Anhui University of Technology, Maanshan 243002, China
| | - Qingan Zhang
- School of Materials Science and Engineering, Anhui University of Technology, Maanshan 243002, China
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42
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43
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Nanoscale Engineering in the Development of Photoelectrocatalytic Cells for Producing Solar Fuels. Top Catal 2016. [DOI: 10.1007/s11244-016-0547-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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44
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Poly(vinyl phosphonic acid) nanogels with tailored properties and their use for biomedical and environmental applications. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.01.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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45
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Choi YS, Lee YS, Oh KH, Cho YW. Interface-enhanced Li ion conduction in a LiBH4–SiO2 solid electrolyte. Phys Chem Chem Phys 2016; 18:22540-7. [DOI: 10.1039/c6cp03563a] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have developed a fast solid state Li ion conductor composed of LiBH4 and SiO2 by means of interface engineering.
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Affiliation(s)
- Yong Seok Choi
- High Temperature Energy Materials Research Center
- Korea Institute of Science and Technology
- Seoul 02792
- Republic of Korea
- Department of Materials Science and Engineering
| | - Young-Su Lee
- High Temperature Energy Materials Research Center
- Korea Institute of Science and Technology
- Seoul 02792
- Republic of Korea
| | - Kyu Hwan Oh
- Department of Materials Science and Engineering
- Seoul National University
- Seoul 08826
- Republic of Korea
| | - Young Whan Cho
- High Temperature Energy Materials Research Center
- Korea Institute of Science and Technology
- Seoul 02792
- Republic of Korea
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46
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Liu Y, Du H, Zhang X, Yang Y, Gao M, Pan H. Superior catalytic activity derived from a two-dimensional Ti3C2 precursor towards the hydrogen storage reaction of magnesium hydride. Chem Commun (Camb) 2016; 52:705-8. [DOI: 10.1039/c5cc08801a] [Citation(s) in RCA: 173] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A 2D Ti3C2 synthesized by the exfoliation of Ti3AlC2 powders exhibits superior catalytic properties for the hydrogen storage reaction of MgH2.
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Affiliation(s)
- Yongfeng Liu
- State Key Laboratory of Silicon Materials
- Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Hufei Du
- State Key Laboratory of Silicon Materials
- Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xin Zhang
- State Key Laboratory of Silicon Materials
- Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Yaxiong Yang
- State Key Laboratory of Silicon Materials
- Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Mingxia Gao
- State Key Laboratory of Silicon Materials
- Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Hongge Pan
- State Key Laboratory of Silicon Materials
- Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
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47
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Han M, Zhao Q, Zhu Z, Hu Y, Tao Z, Chen J. The enhanced hydrogen storage of micro-nanostructured hybrids of Mg(BH4)2-carbon nanotubes. NANOSCALE 2015; 7:18305-18311. [PMID: 26486063 DOI: 10.1039/c5nr05108h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report the facile preparation of micro-nanostructured hybrids of Mg(BH4)2-carbon nanotubes (denoted as MBH-CNTs) and their enhanced hydrogen desorption/absorption performance. The hybrids with Mg(BH4)2 loadings of 25 wt%, 50 wt% and 75 wt% are synthesized through a one-step solvent method by adjusting the ratios of Mg(BH4)2 and CNTs. The optimized MBH-CNTs with 50 wt% Mg(BH4)2 exhibit a nanosized layer coating of Mg(BH4)2 with the thickness of 2-6 nm on the surface of CNTs. The MBH-CNTs with 50 wt% Mg(BH4)2 start to release hydrogen at 76 °C, which shows a significant decrease of about 200 °C compared with that of pure Mg(BH4)2 (about 292 °C). Furthermore, 3.79 wt% of H2 can be desorbed from this sample within 10 min at the peak release temperature of 117 °C. Meanwhile, the dehydrogenated MBH-CNTs could take up 2.5 wt% of H2 at 350 °C under the hydrogen pressure of 10 MPa. The high chemical activity of nanosized Mg(BH4)2 and the catalytic effect of CNTs synergistically promote reversible hydrogen storage. The simple synthesis process and enhanced hydrogen desorption/absorption of MBH-CNT hybrids shed light on the utilization of Mg(BH4)2 on CNTs as efficient hydrogen storage materials.
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Affiliation(s)
- Mo Han
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China
| | - Qing Zhao
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China
| | - Zhiqiang Zhu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China
| | - Yuxiang Hu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China
| | - Zhanliang Tao
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China
| | - Jun Chen
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China and Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, China.
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48
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Javadian P, Nielsen TK, Ravnsbæk DB, Jepsen LH, Polanski M, Plocinski T, Kunce I, Besenbacher F, Bystrzycki J, Jensen TR. Scandium functionalized carbon aerogel: Synthesis of nanoparticles and structure of a new ScOCl and properties of NaAlH4 as a function of pore size. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.08.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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49
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Roedern E, Jensen TR. Ammine-Stabilized Transition-Metal Borohydrides of Iron, Cobalt, and Chromium: Synthesis and Characterization. Inorg Chem 2015; 54:10477-82. [DOI: 10.1021/acs.inorgchem.5b01959] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Elsa Roedern
- Interdisciplinary
Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark
| | - Torben R. Jensen
- Interdisciplinary
Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark
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50
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Xia G, Tan Y, Chen X, Sun D, Guo Z, Liu H, Ouyang L, Zhu M, Yu X. Monodisperse magnesium hydride nanoparticles uniformly self-assembled on graphene. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:5981-5988. [PMID: 26315783 DOI: 10.1002/adma.201502005] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2015] [Revised: 06/29/2015] [Indexed: 06/04/2023]
Abstract
Monodisperse MgH2 nanoparticles with homogeneous distribution and a high loading percent are developed through hydrogenation-induced self-assembly under the structure-directing role of graphene. Graphene acts not only as a structural support, but also as a space barrier to prevent the growth of MgH2 nanoparticles and as a thermally conductive pathway, leading to outstanding performance.
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Affiliation(s)
- Guanglin Xia
- Department of Materials Science, Fudan University, Shanghai, 200433, China
- Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Yingbin Tan
- Department of Materials Science, Fudan University, Shanghai, 200433, China
| | - Xiaowei Chen
- Department of Materials Science, Fudan University, Shanghai, 200433, China
| | - Dalin Sun
- Department of Materials Science, Fudan University, Shanghai, 200433, China
| | - Zaiping Guo
- Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Huakun Liu
- Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Liuzhang Ouyang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Min Zhu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Xuebin Yu
- Department of Materials Science, Fudan University, Shanghai, 200433, China
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