1
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Gunda H, Ray KG, Klebanoff LE, Dun C, Marple MAT, Li S, Sharma P, Friddle RW, Sugar JD, Snider JL, Horton RD, Davis BC, Chames JM, Liu YS, Guo J, Mason HE, Urban JJ, Wood BC, Allendorf MD, Jasuja K, Stavila V. Hydrogen Storage in Partially Exfoliated Magnesium Diboride Multilayers. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205487. [PMID: 36470595 DOI: 10.1002/smll.202205487] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/26/2022] [Indexed: 06/17/2023]
Abstract
Metal boride nanostructures have shown significant promise for hydrogen storage applications. However, the synthesis of nanoscale metal boride particles is challenging because of their high surface energy, strong inter- and intraplanar bonding, and difficult-to-control surface termination. Here, it is demonstrated that mechanochemical exfoliation of magnesium diboride in zirconia produces 3-4 nm ultrathin MgB2 nanosheets (multilayers) in high yield. High-pressure hydrogenation of these multilayers at 70 MPa and 330 °C followed by dehydrogenation at 390 °C reveals a hydrogen capacity of 5.1 wt%, which is ≈50 times larger than the capacity of bulk MgB2 under the same conditions. This enhancement is attributed to the creation of defective sites by ball-milling and incomplete Mg surface coverage in MgB2 multilayers, which disrupts the stable boron-boron ring structure. The density functional theory calculations indicate that the balance of Mg on the MgB2 nanosheet surface changes as the material hydrogenates, as it is energetically favorable to trade a small number of Mg vacancies in Mg(BH4 )2 for greater Mg coverage on the MgB2 surface. The exfoliation and creation of ultrathin layers is a promising new direction for 2D metal boride/borohydride research with the potential to achieve high-capacity reversible hydrogen storage at more moderate pressures and temperatures.
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Affiliation(s)
- Harini Gunda
- Sandia National Laboratories, 7011 East Ave, Livermore, CA, 94550, USA
- Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar, Gujarat, 382355, India
| | - Keith G Ray
- Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA, 94550, USA
| | | | - Chaochao Dun
- Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Maxwell A T Marple
- Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA, 94550, USA
| | - Sichi Li
- Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA, 94550, USA
| | - Peter Sharma
- Sandia National Laboratories, 1515 Eubank SE, Albuquerque, NM, 87185, USA
| | - Raymond W Friddle
- Sandia National Laboratories, 7011 East Ave, Livermore, CA, 94550, USA
| | - Joshua D Sugar
- Sandia National Laboratories, 7011 East Ave, Livermore, CA, 94550, USA
| | - Jonathan L Snider
- Sandia National Laboratories, 7011 East Ave, Livermore, CA, 94550, USA
| | - Robert D Horton
- Sandia National Laboratories, 7011 East Ave, Livermore, CA, 94550, USA
| | - Brendan C Davis
- Sandia National Laboratories, 7011 East Ave, Livermore, CA, 94550, USA
| | - Jeffery M Chames
- Sandia National Laboratories, 7011 East Ave, Livermore, CA, 94550, USA
| | - Yi-Sheng Liu
- Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Jinghua Guo
- Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Harris E Mason
- Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA, 94550, USA
| | - Jeffrey J Urban
- Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Brandon C Wood
- Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA, 94550, USA
| | - Mark D Allendorf
- Sandia National Laboratories, 7011 East Ave, Livermore, CA, 94550, USA
| | - Kabeer Jasuja
- Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar, Gujarat, 382355, India
| | - Vitalie Stavila
- Sandia National Laboratories, 7011 East Ave, Livermore, CA, 94550, USA
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2
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Wan LF, Autrey T, Wood BC. First-Principles Elucidation of Initial Dehydrogenation Pathways in Mg(BH 4) 2. J Phys Chem Lett 2022; 13:1908-1913. [PMID: 35179375 DOI: 10.1021/acs.jpclett.2c00112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Complex borohydrides such as Mg(BH4)2 offer one of highest capacities to chemically store hydrogen for onboard applications; however, it suffers greatly from kinetic constraints that prevent realization of full capacity and reversibility. Understanding these kinetic limitations solely from experiments is extremely challenging due to the unusual complexity of various competing elemental reaction steps involved during the de/rehydrogenation reaction. This work aims to map out the energetics associated with initial dehydrogenation of Mg(BH4)2 from first-principles simulations and to identify the preferred reaction pathways. Our calculations suggest the rate-limiting step during BH4--B3H8- conversion is the formation of the B2H7- intermediate. We further emphasize and clarify that the B3H8- and H- intermediates, formed during initial Mg(BH4)2 decomposition, appear as molecular species that are embedded in the Mg-BH4-Mg matrix as evidenced in the nuclear magnetic resonance measurements and not as bulk MgH2 and Mg(B3H8)2 as previously assumed in theoretical predictions of the thermodynamics.
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Affiliation(s)
- Liwen F Wan
- Laboratory for Energy Applications for the Future (LEAF), Materials Science Division, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
| | - Tom Autrey
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Brandon C Wood
- Laboratory for Energy Applications for the Future (LEAF), Materials Science Division, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
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3
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An Overview of the Recent Advances of Additive-Improved Mg(BH4)2 for Solid-State Hydrogen Storage Material. ENERGIES 2022. [DOI: 10.3390/en15030862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Recently, hydrogen (H2) has emerged as a superior energy carrier that has the potential to replace fossil fuel. However, storing H2 under safe and operable conditions is still a challenging process due to the current commercial method, i.e., H2 storage in a pressurised and liquified state, which requires extremely high pressure and extremely low temperature. To solve this problem, research on solid-state H2 storage materials is being actively conducted. Among the solid-state H2 storage materials, borohydride is a potential candidate for H2 storage owing to its high gravimetric capacity (majority borohydride materials release >10 wt% of H2). Mg(BH4)2, which is included in the borohydride family, shows promise as a good H2 storage material owing to its high gravimetric capacity (14.9 wt%). However, its practical application is hindered by high thermal decomposition temperature (above 300 °C), slow sorption kinetics and poor reversibility. Currently, the general research on the use of additives to enhance the H2 storage performance of Mg(BH4)2 is still under investigation. This article reviews the latest research on additive-enhanced Mg(BH4)2 and its impact on the H2 storage performance. The future prospect and challenges in the development of additive-enhanced Mg(BH4)2 are also discussed in this review paper. To the best of our knowledge, this is the first systematic review paper that focuses on the additive-enhanced Mg(BH4)2 for solid-state H2 storage.
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4
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Destabilization of Boron-Based Compounds for Hydrogen Storage in the Solid-State: Recent Advances. ENERGIES 2021. [DOI: 10.3390/en14217003] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Boron-based materials have been widely studied for hydrogen storage applications. Examples of these compounds are borohydrides and boranes. However, all of these present some disadvantages that have hindered their potential application as hydrogen storage materials in the solid-state. Thus, different strategies have been developed to improve the dehydrogenation properties of these materials. The purpose of this review is to provide an overview of recent advances (for the period 2015–2021) in the destabilization strategies that have been considered for selected boron-based compounds. With this aim, we selected seven of the most investigated boron-based compounds for hydrogen storage applications: lithium borohydride, sodium borohydride, magnesium borohydride, calcium borohydride, ammonia borane, hydrazine borane and hydrazine bisborane. The destabilization strategies include the use of additives, the chemical modification and the nanosizing of these compounds. These approaches were analyzed for each one of the selected boron-based compounds and these are discussed in the present review.
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5
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Maniadaki AE, Łodziana Z. Theoretical description of alkali metal closo-boranes - towards the crystal structure of MgB 12H 12. Phys Chem Chem Phys 2018; 20:30140-30149. [PMID: 30306973 DOI: 10.1039/c8cp02371a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solid state closo-borane salts of alkali metals have very high ionic conductivity. This makes them interesting for practical applications as solid state electrolytes, and has triggered extensive research efforts. Improvement and understanding of their properties require accurate theoretical description of their static and dynamical properties. In this work, we report accuracy assessment of density functional theory in the description of solids with B12H122- anions. We show that these aromatic anions interact via weak dispersive forces. For that reason, non-local exchange-correlation functionals give better description of structural properties and phonons in Li2B12H12 and Na2B12H12. Numerically efficient semi-local methods provide satisfactory results when applied in structure volumes obtained in a non-local method. An extensive structural search for stable crystalline phases of MgB12H12 predicts a new denser lattice with C2/c symmetry that is stabilized by van der Waals interactions. These structures might be discovered as anhydrous MgB12H12 in high pressure experiments, avoiding the amorphous state at ambient pressures.
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Affiliation(s)
- Aristea E Maniadaki
- Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, PL31-342 Kraków, Poland.
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6
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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: 142] [Impact Index Per Article: 23.7] [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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7
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8
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Complex Metal Hydrides for Hydrogen, Thermal and Electrochemical Energy Storage. ENERGIES 2017. [DOI: 10.3390/en10101645] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Ray KG, Klebanoff LE, Lee JRI, Stavila V, Heo TW, Shea P, Baker AA, Kang S, Bagge-Hansen M, Liu YS, White JL, Wood BC. Elucidating the mechanism of MgB2 initial hydrogenation via a combined experimental–theoretical study. Phys Chem Chem Phys 2017; 19:22646-22658. [DOI: 10.1039/c7cp03709k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The initial hydrogenation of MgB2 occurs via a multi-step process, which can result in the direct production of [BH4]− complexes.
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Affiliation(s)
- Keith G. Ray
- Lawrence Livermore National Laboratory
- Livermore
- USA
| | | | | | | | - Tae Wook Heo
- Lawrence Livermore National Laboratory
- Livermore
- USA
| | - Patrick Shea
- Lawrence Livermore National Laboratory
- Livermore
- USA
| | | | | | | | - Yi-Sheng Liu
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
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10
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Hansen BRS, Tumanov N, Santoru A, Pistidda C, Bednarcik J, Klassen T, Dornheim M, Filinchuk Y, Jensen TR. Synthesis, structures and thermal decomposition of ammine MxB12H12complexes (M = Li, Na, Ca). Dalton Trans 2017; 46:7770-7781. [DOI: 10.1039/c7dt01414g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work presents the structural and thermal properties of ammine metal dodecahydro-closo-dodecaboranes and their reversible ammonia (or hydrogen) storage.
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Affiliation(s)
- Bjarne R. S. Hansen
- Center for Materials Crystallography
- iNANO
- and Department of Chemistry
- Aarhus University
- 8000 Aarhus
| | - Nikolay Tumanov
- Institute of Condensed Matter and Nanosciences
- Université catholique de Louvain
- 1348 Louvain-la-Neuve
- Belgium
- Chemistry Department
| | - Antonio Santoru
- Institute of Materials Research
- Nanotechnology
- Helmholtz-Zentrum Geesthacht GmbH
- D-21502 Geesthacht
- Germany
| | - Claudio Pistidda
- Institute of Materials Research
- Nanotechnology
- Helmholtz-Zentrum Geesthacht GmbH
- D-21502 Geesthacht
- Germany
| | | | - Thomas Klassen
- Institute of Materials Research
- Nanotechnology
- Helmholtz-Zentrum Geesthacht GmbH
- D-21502 Geesthacht
- Germany
| | - Martin Dornheim
- Institute of Materials Research
- Nanotechnology
- Helmholtz-Zentrum Geesthacht GmbH
- D-21502 Geesthacht
- Germany
| | - Yaroslav Filinchuk
- Institute of Condensed Matter and Nanosciences
- Université catholique de Louvain
- 1348 Louvain-la-Neuve
- Belgium
| | - Torben R. Jensen
- Center for Materials Crystallography
- iNANO
- and Department of Chemistry
- Aarhus University
- 8000 Aarhus
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11
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Sahle CJ, Kujawski S, Remhof A, Yan Y, Stadie NP, Al-Zein A, Tolan M, Huotari S, Krisch M, Sternemann C. In situ characterization of the decomposition behavior of Mg(BH4)2 by X-ray Raman scattering spectroscopy. Phys Chem Chem Phys 2016; 18:5397-403. [PMID: 26818950 DOI: 10.1039/c5cp06571b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We present an in situ study of the thermal decomposition of Mg(BH4)2 in a hydrogen atmosphere of up to 4 bar and up to 500 °C using X-ray Raman scattering spectroscopy at the boron K-edge and the magnesium L2,3-edges. The combination of the fingerprinting analysis of both edges yields detailed quantitative information on the reaction products during decomposition, an issue of crucial importance in determining whether Mg(BH4)2 can be used as a next-generation hydrogen storage material. This work reveals the formation of reaction intermediate(s) at 300 °C, accompanied by a significant hydrogen release without the occurrence of stable boron compounds such as amorphous boron or MgB12H12. At temperatures between 300 °C and 400 °C, further hydrogen release proceeds via the formation of higher boranes and crystalline MgH2. Above 400 °C, decomposition into the constituting elements takes place. Therefore, at moderate temperatures, Mg(BH4)2 is shown to be a promising high-density hydrogen storage material with great potential for reversible energy storage applications.
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12
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Thermal Decomposition of Anhydrous Alkali Metal Dodecaborates M2B12H12 (M = Li, Na, K). ENERGIES 2015. [DOI: 10.3390/en81112326] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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13
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Yan Y, Remhof A, Rentsch D, Züttel A. The role of MgB12H12 in the hydrogen desorption process of Mg(BH4)2. Chem Commun (Camb) 2015; 51:700-2. [PMID: 25417944 DOI: 10.1039/c4cc05266h] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The presence of MgB12H12 has often been considered as the major obstacle for the reversible hydrogen storage in Mg(BH4)2. This communication provides evidence that the MgB12H12 phase (or [B12H12](2-) monomer) does not exist in the decomposition products of Mg(BH4)2 at temperatures ranging from 265 to 400 °C, and thereby it will not act as a dead end.
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Affiliation(s)
- Yigang Yan
- EMPA, Swiss Federal Laboratories for Materials Science and Technology, Hydrogen & Energy, 8600 Dübendorf, Switzerland.
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14
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Chong M, Matsuo M, Orimo SI, Autrey T, Jensen CM. Selective Reversible Hydrogenation of Mg(B3H8)2/MgH2 to Mg(BH4)2: Pathway to Reversible Borane-Based Hydrogen Storage? Inorg Chem 2015; 54:4120-5. [DOI: 10.1021/acs.inorgchem.5b00373] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marina Chong
- Department of Chemistry, University of Hawaii, 2545 McCarthy Mall, Honolulu, Hawaii 96822, United States
| | - Motoaki Matsuo
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - Shin-ichi Orimo
- WPI-Advanced
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - Tom Autrey
- Pacific Northwest National Laboratory, 902 Battelle Blvd, Richland, Washington 99352, United States
| | - Craig M. Jensen
- Department of Chemistry, University of Hawaii, 2545 McCarthy Mall, Honolulu, Hawaii 96822, United States
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15
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Tutusaus O, Mohtadi R. Paving the Way towards Highly Stable and Practical Electrolytes for Rechargeable Magnesium Batteries. ChemElectroChem 2014. [DOI: 10.1002/celc.201402207] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Chen X, Liu YH, Alexander AM, Gallucci JC, Hwang SJ, Lingam HK, Huang Z, Wang C, Li H, Zhao Q, Ozkan US, Shore SG, Zhao JC. Desolvation and Dehydrogenation of Solvated Magnesium Salts of Dodecahydrododecaborate: Relationship between Structure and Thermal Decomposition. Chemistry 2014; 20:7325-33. [DOI: 10.1002/chem.201303842] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 02/20/2014] [Indexed: 11/08/2022]
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17
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Carter TJ, Mohtadi R, Arthur TS, Mizuno F, Zhang R, Shirai S, Kampf JW. Boron clusters as highly stable magnesium-battery electrolytes. Angew Chem Int Ed Engl 2014; 53:3173-7. [PMID: 24519845 PMCID: PMC4298798 DOI: 10.1002/anie.201310317] [Citation(s) in RCA: 183] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Indexed: 11/09/2022]
Abstract
Boron clusters are proposed as a new concept for the design of magnesium-battery electrolytes that are magnesium-battery-compatible, highly stable, and noncorrosive. A novel carborane-based electrolyte incorporating an unprecedented magnesium-centered complex anion is reported and shown to perform well as a magnesium-battery electrolyte. This finding opens a new approach towards the design of electrolytes whose likelihood of meeting the challenging design targets for magnesium-battery electrolytes is very high.
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18
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Carter TJ, Mohtadi R, Arthur TS, Mizuno F, Zhang R, Shirai S, Kampf JW. Boron Clusters as Highly Stable Magnesium-Battery Electrolytes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310317] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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19
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Yan Y, Remhof A, Rentsch D, Lee YS, Whan Cho Y, Züttel A. Is Y2(B12H12)3 the main intermediate in the decomposition process of Y(BH4)3? Chem Commun (Camb) 2013; 49:5234-6. [PMID: 23628977 DOI: 10.1039/c3cc41184b] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dodecaborates, i.e. the [B12H12](2-) containing species, are often observed as main intermediates in the hydrogen sorption cycle of metal borohydrides, hindering rehydrogenation. In the decomposition process of Y(BH4)3, yttrium octahydrotriborate, i.e. Y(B3H8)3, rather than the stable Y2(B12H12)3, is formed as the main intermediate.
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Affiliation(s)
- Yigang Yan
- EMPA, Swiss Federal Laboratories for Materials Science and Technology, Hydrogen & Energy, 8600 Dübendorf, Switzerland.
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20
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Prediction of thermodynamically reversible hydrogen storage reactions in the KBH4/M(M=Li, Na, Ca)(BH4)n(n=1,2) system from first-principles calculation. Chem Phys 2013. [DOI: 10.1016/j.chemphys.2013.03.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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Pitt MP, Paskevicius M, Brown DH, Sheppard DA, Buckley CE. Thermal Stability of Li2B12H12 and its Role in the Decomposition of LiBH4. J Am Chem Soc 2013; 135:6930-41. [DOI: 10.1021/ja400131b] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mark P. Pitt
- Department
of Imaging and Applied
Physics, Fuels and Energy Technology Institute, Curtin University, GPO Box U1987, Perth 6845, WA, Australia
| | - Mark Paskevicius
- Department
of Imaging and Applied
Physics, Fuels and Energy Technology Institute, Curtin University, GPO Box U1987, Perth 6845, WA, Australia
| | - David H. Brown
- Department of Chemistry, Curtin University, Kent Street, Bentley 6102 WA, Australia
| | - Drew A. Sheppard
- Department
of Imaging and Applied
Physics, Fuels and Energy Technology Institute, Curtin University, GPO Box U1987, Perth 6845, WA, Australia
| | - Craig E. Buckley
- Department
of Imaging and Applied
Physics, Fuels and Energy Technology Institute, Curtin University, GPO Box U1987, Perth 6845, WA, Australia
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22
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Verdal N, Udovic TJ, Rush JJ, Stavila V, Wu H, Zhou W, Jenkins T. Low-temperature tunneling and rotational dynamics of the ammonium cations in (NH4)2B12H12. J Chem Phys 2012; 135:094501. [PMID: 21913769 DOI: 10.1063/1.3624495] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Low-temperature neutron scattering spectra of diammonium dodecahydro-closo-dodecaborate [(NH(4))(2)B(12)H(12)] reveal two NH(4)(+) rotational tunneling peaks (e.g., 18.5 μeV and 37 μeV at 4 K), consistent with the tetrahedral symmetry and environment of the cations. The tunneling peaks persist between 4 K and 40 K. An estimate was made for the tunnel splitting of the first NH(4)(+) librational state from a fit of the observed ground-state tunnel splitting as a function of temperature. At temperatures of 50 K-70 K, classical neutron quasi-elastic scattering appears to dominate the spectra and is attributed to NH(4)(+) cation jump reorientation about the four C(3) axes defined by the N-H bonds. A reorientational activation energy of 8.1 ± 0.6 meV (0.79 ± 0.06 kJ/mol) is determined from the behavior of the quasi-elastic linewidths in this temperature regime. This activation energy is in accord with a change in NH(4)(+) dynamical behavior above 70 K. A low-temperature inelastic neutron scattering feature at 7.8 meV is assigned to a NH(4)(+) librational mode. At increased temperatures, this feature drops in intensity, having shifted entirely to higher energies by 200 K, suggesting the onset of quasi-free NH(4)(+) rotation. This is consistent with neutron-diffraction-based model refinements, which derive very large thermal ellipsoids for the ammonium-ion hydrogen atoms at room temperature in the direction of reorientation.
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Affiliation(s)
- Nina Verdal
- NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive, MS 6102, Gaithersburg, Maryland 20899-6102, USA.
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Olson JK, Boldyrev AI. Electronic transmutation: Boron acquiring an extra electron becomes ‘carbon’. Chem Phys Lett 2012. [DOI: 10.1016/j.cplett.2011.11.079] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Olson JK, Boldyrev AI. Ab initio search for global minimum structures of neutral and anionic B4H5 clusters. Optical isomerism in B4H5 and. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.10.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Olson JK, Boldyrev AI. Ab initio characterization of the flexural anion found in the reversible dehydrogenation. COMPUT THEOR CHEM 2011. [DOI: 10.1016/j.comptc.2011.04.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kim KC, Kulkarni AD, Johnson JK, Sholl DS. Examining the robustness of first-principles calculations for metal hydride reaction thermodynamics by detection of metastable reaction pathways. Phys Chem Chem Phys 2011; 13:21520-9. [DOI: 10.1039/c1cp22489a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kim KC, Kulkarni AD, Johnson JK, Sholl DS. Large-scale screening of metal hydrides for hydrogen storage from first-principles calculations based on equilibrium reaction thermodynamics. Phys Chem Chem Phys 2011; 13:7218-29. [DOI: 10.1039/c0cp02950e] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Chong M, Karkamkar A, Autrey T, Orimo SI, Jalisatgi S, Jensen CM. Reversible dehydrogenation of magnesium borohydride to magnesium triborane in the solid state under moderate conditions. Chem Commun (Camb) 2011; 47:1330-2. [DOI: 10.1039/c0cc03461d] [Citation(s) in RCA: 136] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Giannasi A, Colognesi D, Ulivi L, Zoppi M, Ramirez-Cuesta AJ, Bardají EG, Roehm E, Fichtner M. High Resolution Raman and Neutron Investigation of Mg(BH4)2 in an Extensive Temperature Range. J Phys Chem A 2010; 114:2788-93. [DOI: 10.1021/jp911175n] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | - A. J. Ramirez-Cuesta
- Rutherford Appleton Laboratory, ISIS Facility, Chilton, Didcot, Oxon, OX11 0QX, United Kingdom
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Kim KC, Allendorf MD, Stavila V, Sholl DS. Predicting impurity gases and phases during hydrogen evolution from complex metal hydrides using free energy minimization enabled by first-principles calculations. Phys Chem Chem Phys 2010; 12:9918-26. [DOI: 10.1039/c001657h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Chu H, Xiong Z, Wu G, Guo J, He T, Chen P. Improved dehydrogenation properties of Ca(BH4)2-LiNH2 combined system. Dalton Trans 2010; 39:10585-7. [DOI: 10.1039/c0dt00294a] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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van Setten MJ, Lohstroh W, Fichtner M. A new phase in the decomposition of Mg(BH4)2: first-principles simulated annealing. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b908821k] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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