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Zeng L, Keshavarz A, Kumar Jha N, Al-Yaseri A, Sarmadivaleh M, Xie Q, Iglauer S. Geochemical modelling of hydrogen wettability on Quartz: Implications for underground hydrogen storage in sandstone reservoirs. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2022.121076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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2
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Roy N, Harshit, Jana PP. Hydrogen storage properties of ternary ordered cubic Laves phase Cu3Cd2In: Electronic structure and bonding approach. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Batalović K, Radaković J, Paskaš Mamula B, Kuzmanović B, Medić Ilić M. Predicting the Heat of Hydride Formation by Graph Neural Network ‐ Exploring the Structure–Property Relation for Metal Hydrides. ADVANCED THEORY AND SIMULATIONS 2022. [DOI: 10.1002/adts.202200293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Katarina Batalović
- Center of Excellence for Hydrogen and Renewable Energy VINCA Institute of Nuclear Sciences – National Institute of the Republic of Serbia University of Belgrade P.O.Box 522 Belgrade 11000 Serbia
| | - Jana Radaković
- Center of Excellence for Hydrogen and Renewable Energy VINCA Institute of Nuclear Sciences – National Institute of the Republic of Serbia University of Belgrade P.O.Box 522 Belgrade 11000 Serbia
| | - Bojana Paskaš Mamula
- Center of Excellence for Hydrogen and Renewable Energy VINCA Institute of Nuclear Sciences – National Institute of the Republic of Serbia University of Belgrade P.O.Box 522 Belgrade 11000 Serbia
| | - Bojana Kuzmanović
- Center of Excellence for Hydrogen and Renewable Energy VINCA Institute of Nuclear Sciences – National Institute of the Republic of Serbia University of Belgrade P.O.Box 522 Belgrade 11000 Serbia
| | - Mirjana Medić Ilić
- Center of Excellence for Hydrogen and Renewable Energy VINCA Institute of Nuclear Sciences – National Institute of the Republic of Serbia University of Belgrade P.O.Box 522 Belgrade 11000 Serbia
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4
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Nayyar IH, Ginovska B, Bowden M, Edvenson G, Tran B, Autrey T. Analysis of Intermediates and Products from the Dehydrogenation of Mg(BH 4) 2. J Phys Chem A 2022; 126:444-452. [PMID: 35030001 DOI: 10.1021/acs.jpca.1c09690] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The thermodynamic properties of key compounds Mg(B3H8)2, MgB2H6, MgB10H10, Mg(B11H14)2, Mg3(B3H6)2, and MgB12H12, proposed to be formed in the release of hydrogen from magnesium borohydride Mg(BH4)2 and the uptake of hydrogen by MgB2, have been investigated using solid-state density functional theory (DFT) calculations. More accurate tretment of the cell-size effects with respect to the entropies was also investigated in order to improve the accuracy of the thermodynamic properties of complex borohydrides. We find that the zero-point energy corrections can lower the electronic energies of reaction by 20-30 kJ/(mol H2) for these intermediates, while adding the thermal and entropy contibutions results in a total decrease of up to ∼50 kJ/(mol H2). Although our treatment lowers the calculated formation energy of Mg(B3H8)2, it is still too high to explain the experimental observation of B3H8-. We discuss possible reasons for this disparity and propose that the formation of B3H8- and H- in a disordered amorphous phase has a large energy difference compared to the phase-separated Mg(B3H8)2 and MgH2 considered in calculations. A comparison of the experimental and NMR chemical shifts calculated within a DFT approach for known species Mg(BH4)2, Mg(B3H8)2, Mg(B11H14)2, MgB10H10, and MgB12H12 provides validation for predicting the chemical shifts of the other compounds which are yet to be confirmed experimentally. These include MgB2H6 and the proposed trianion species Mg3(B3H6)2 that both have favorable thermodynamics for reversible hydrogen storage in Mg(BH4)2 without the formation of MgH2 as a coproduct which could phase separate and inhibit rehydrogenation.
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Affiliation(s)
- Iffat H Nayyar
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Bojana Ginovska
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Mark Bowden
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Gary Edvenson
- Chemistry and Biochemistry Departments, Minnesota State University, Moorhead, Minnesota 56563, United States
| | - Ba Tran
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Tom Autrey
- Physical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
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6
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Towards Non-Mechanical Hybrid Hydrogen Compression for Decentralized Hydrogen Facilities. ENERGIES 2020. [DOI: 10.3390/en13123145] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The cost of the hydrogen value chain needs to be reduced to allow the widespread development of hydrogen applications. Mechanical compressors, widely used for compressing hydrogen to date, account for more than 50% of the CAPEX (capital expenditure) in a hydrogen refueling station. Moreover, mechanical compressors have several disadvantages, such as the presence of many moving parts, hydrogen embrittlement, and high consumption of energy. Non-mechanical hydrogen compressors have proven to be a valid alternative to mechanical compressors. Among these, electrochemical compressors allow isothermal, and therefore highly efficient, compression of hydrogen. On the other hand, adsorption-desorption compressors allow hydrogen to be compressed through cooling/heating cycles using highly microporous materials as hydrogen adsorbents. A non-mechanical hybrid hydrogen compressor, consisting of a first electrochemical stage followed by a second stage driven by adsorption-desorption of hydrogen on activated carbons, allows hydrogen to be produced at 70 MPa, a value currently required for the development of hydrogen automotive applications. This system has several advantages over mechanical compressors, such as the absence of moving parts and high compactness. Its use in decentralized hydrogen facilities, such as hydrogen refueling stations, can be considered.
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Witman M, Ling S, Grant DM, Walker GS, Agarwal S, Stavila V, Allendorf MD. Extracting an Empirical Intermetallic Hydride Design Principle from Limited Data via Interpretable Machine Learning. J Phys Chem Lett 2020; 11:40-47. [PMID: 31814416 DOI: 10.1021/acs.jpclett.9b02971] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
An open question in the metal hydride community is whether there are simple, physics-based design rules that dictate the thermodynamic properties of these materials across the variety of structures and chemistry they can exhibit. While black box machine learning-based algorithms can predict these properties with some success, they do not directly provide the basis on which these predictions are made, therefore complicating the a priori design of novel materials exhibiting a desired property value. In this work we demonstrate how feature importance, as identified by a gradient boosting tree regressor, uncovers the strong dependence of the metal hydride equilibrium H2 pressure on a volume-based descriptor that can be computed from just the elemental composition of the intermetallic alloy. Elucidation of this simple structure-property relationship is valid across a range of compositions, metal substitutions, and structural classes exhibited by intermetallic hydrides. This permits rational targeting of novel intermetallics for high-pressure hydrogen storage (low-stability hydrides) by their descriptor values, and we predict a known intermetallic to form a low-stability hydride (as confirmed by density functional theory calculations) that has not yet been experimentally investigated.
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Affiliation(s)
- Matthew Witman
- Sandia National Laboratories , Livermore , California 94551 , United States
| | - Sanliang Ling
- Advanced Materials Research Group, Faculty of Engineering , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
| | - David M Grant
- Advanced Materials Research Group, Faculty of Engineering , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
| | - Gavin S Walker
- Advanced Materials Research Group, Faculty of Engineering , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
| | - Sapan Agarwal
- Sandia National Laboratories , Livermore , California 94551 , United States
| | - Vitalie Stavila
- Sandia National Laboratories , Livermore , California 94551 , United States
| | - Mark D Allendorf
- Sandia National Laboratories , Livermore , California 94551 , United States
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8
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Grbović Novaković J, Novaković N, Kurko S, Milošević Govedarović S, Pantić T, Paskaš Mamula B, Batalović K, Radaković J, Rmuš J, Shelyapina M, Skryabina N, de Rango P, Fruchart D. Influence of Defects on the Stability and Hydrogen-Sorption Behavior of Mg-Based Hydrides. Chemphyschem 2019; 20:1216-1247. [PMID: 30913344 DOI: 10.1002/cphc.201801125] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 03/18/2019] [Indexed: 11/09/2022]
Abstract
This review deals with the destabilization methods for improvement of storage properties of metal hydrides. Both theoretical and experimental approaches were used to point out the influence of various types of defects on structure and stability of hydrides. As a case study, Mg, and Ni based hydrides has been investigated. Theoretical studies, mainly carried out within various implementations of DFT, are a powerful tool to study mostly MgH2 based materials. By providing an insight on metal-hydrogen bonding that governs both thermodynamics and hydrogen kinetics, they allow us to describe phenomena to which experimental methods have a limited access or do not have it at all: to follow the hydrogen sorption reaction on a specific metal surface and hydrogen induced phase transformations, to describe structure of phase boundaries or to explain the impact of defects or various additives on MgH2 stability and hydrogen sorption kinetics. In several cases theoretical calculations reveal themselves as being able to predict new properties of materials, including the ways to modify Mg or MgH2 that would lead to better characteristics in terms of hydrogen storage. The influence of ion irradiation and mechanical milling with and without additives has been discussed. Ion irradiation is the way to introduce a well-defined concentration of defects (Frankel pairs) at the surface and sub-surface layers of a material. Defects at the surface play the main role in sorption reaction since they enhance the dissociation of hydrogen. On the other hand, ball-milling introduce defects through the entire sample volume, refine the structure and thus decrease the path for hydrogen diffusion. Two Severe Plastic Deformation techniques were used to better understand the hydrogenation/dehydrogenation kinetics of Mg- and Mg2 Ni-based alloys: Equal-Angular-Channel-Pressing and Fast-Forging. Successive ECAP passes leads to refinement of the microstructure of AZ31 ingots and to instalment therein of high densities of defects. Depending on mode, number and temperature of ECAP passes, the H-sorption kinetics have been improved satisfactorily without any additive for mass H-storage applications considering the relative speed of the shaping procedure. A qualitative understanding of the kinetic advanced principles has been built. Fast-Forging was used for a "quasi-instantaneous" synthesis of Mg/Mg2 Ni-based composites. Hydrogenation of the as-received almost bi-phased materials remains rather slow as generally observed elsewhere, whatever are multiple and different techniques used to deliver the composite alloys. However, our preliminary results suggest that a synergic hydrogenation / dehydrogenation process should assist hydrogen transfers from Mg/Mg2 Ni on one side to MgH2 /Mg2 NiH4 on the other side via the rather stable a-Mg2 NiH0.3 , acting as in-situ catalyser.
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Affiliation(s)
- Jasmina Grbović Novaković
- Center of Excelence for Hydrogen and Renewable Energy CONVINCE, University of Belgrade, Vinča Institute of Nuclear Sciences, POB 522, 11001, Belgrade, Serbia
| | - Nikola Novaković
- Center of Excelence for Hydrogen and Renewable Energy CONVINCE, University of Belgrade, Vinča Institute of Nuclear Sciences, POB 522, 11001, Belgrade, Serbia
| | - Sandra Kurko
- Center of Excelence for Hydrogen and Renewable Energy CONVINCE, University of Belgrade, Vinča Institute of Nuclear Sciences, POB 522, 11001, Belgrade, Serbia
| | - Sanja Milošević Govedarović
- Center of Excelence for Hydrogen and Renewable Energy CONVINCE, University of Belgrade, Vinča Institute of Nuclear Sciences, POB 522, 11001, Belgrade, Serbia
| | - Tijana Pantić
- Center of Excelence for Hydrogen and Renewable Energy CONVINCE, University of Belgrade, Vinča Institute of Nuclear Sciences, POB 522, 11001, Belgrade, Serbia
| | - Bojana Paskaš Mamula
- Center of Excelence for Hydrogen and Renewable Energy CONVINCE, University of Belgrade, Vinča Institute of Nuclear Sciences, POB 522, 11001, Belgrade, Serbia
| | - Katarina Batalović
- Center of Excelence for Hydrogen and Renewable Energy CONVINCE, University of Belgrade, Vinča Institute of Nuclear Sciences, POB 522, 11001, Belgrade, Serbia
| | - Jana Radaković
- Center of Excelence for Hydrogen and Renewable Energy CONVINCE, University of Belgrade, Vinča Institute of Nuclear Sciences, POB 522, 11001, Belgrade, Serbia
| | - Jelena Rmuš
- Center of Excelence for Hydrogen and Renewable Energy CONVINCE, University of Belgrade, Vinča Institute of Nuclear Sciences, POB 522, 11001, Belgrade, Serbia
| | - Marina Shelyapina
- Department of Nuclear Physics Research Methods, Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg, 199034, Russia
| | - Nataliya Skryabina
- Department of Physics, Perm State University, Bukireva street, 15.Perm, 614990, Russia
| | - Patricia de Rango
- Institute Néel, CNRS, 25 Avenue des Martyrs, BP 166, 38042, Grenoble Cedex 9, France
| | - Daniel Fruchart
- Institute Néel, CNRS, 25 Avenue des Martyrs, BP 166, 38042, Grenoble Cedex 9, France
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Zhang J, Li Z, Wu Y, Guo X, Ye J, Yuan B, Wang S, Jiang L. Recent advances on the thermal destabilization of Mg-based hydrogen storage materials. RSC Adv 2019; 9:408-428. [PMID: 35521580 PMCID: PMC9059486 DOI: 10.1039/c8ra05596c] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 12/07/2018] [Indexed: 01/05/2023] Open
Abstract
Magnesium hydride and its compounds have a high hydrogen storage capacity and are inexpensive, and thus have been considered as one of the most promising hydrogen storage materials for on-board applications. Nevertheless, Mg/MgH2 systems suffer from great drawbacks in terms of kinetics and thermodynamics for hydrogen uptake/release. Over the past decades, although significant progress has been achieved with respect to hydrogen sorption kinetics in Mg/MgH2 systems, their high thermal stability remains the main drawback, which hinders their practical applications. Accordingly, herein, we present a brief summary of the synthetic routes and a comprehensive overview of the advantages and disadvantages of the promising strategies to effectively tune the thermodynamics of Mg-based materials, such as alloying, nanostructuring, metastable phase formation, changing reaction pathway, and nano Mg-based composites. Among them nanostructuring and metastable phase formation, which have the superiority of changing the thermodynamics without affecting the hydrogen capacity, have attracted increasing interest in this field. To further optimize the hydrogen storage performance, we specially emphasize novel nanostructured materials, which have the advantage of combining alloy engineering, nanostructuring and the synergistic effect to change the thermodynamics of Mg/MgH2 to some extent. Furthermore, the remaining challenges and the directions of further research on MgH2, including the fundamental mechanism of the Mg–H bond instability, advanced synthetic routes, stabilizing nanostructures, and predicting novel composite materials, are proposed. Magnesium hydride and its compounds have a high hydrogen storage capacity and are inexpensive, and thus have been considered as one of the most promising hydrogen storage materials for on-board applications.![]()
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Affiliation(s)
- Jianfeng Zhang
- General Research Institute for Nonferrous Metals
- Beijing 100088
- China
| | - Zhinian Li
- General Research Institute for Nonferrous Metals
- Beijing 100088
- China
| | - Yuanfang Wu
- General Research Institute for Nonferrous Metals
- Beijing 100088
- China
| | - Xiumei Guo
- General Research Institute for Nonferrous Metals
- Beijing 100088
- China
| | - Jianhua Ye
- General Research Institute for Nonferrous Metals
- Beijing 100088
- China
| | - Baolong Yuan
- General Research Institute for Nonferrous Metals
- Beijing 100088
- China
| | - Shumao Wang
- General Research Institute for Nonferrous Metals
- Beijing 100088
- China
| | - Lijun Jiang
- General Research Institute for Nonferrous Metals
- Beijing 100088
- China
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10
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3D Network nanostructured NiCoP nanosheets supported on N-doped carbon coated Ni foam as a highly active bifunctional electrocatalyst for hydrogen and oxygen evolution reactions. Front Chem Sci Eng 2018. [DOI: 10.1007/s11705-018-1711-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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11
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Jensen SRH, Paskevicius M, Hansen BRS, Jakobsen AS, Møller KT, White JL, Allendorf MD, Stavila V, Skibsted J, Jensen TR. Hydrogenation properties of lithium and sodium hydride – closo-borate, [B10H10]2− and [B12H12]2−, composites. Phys Chem Chem Phys 2018; 20:16266-16275. [DOI: 10.1039/c7cp07776a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The hydrogen absorption properties of metal closo-borate/metal hydride composites are studied under high hydrogen pressures.
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12
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Fianchini M. Synthesis meets theory: Past, present and future of rational chemistry. PHYSICAL SCIENCES REVIEWS 2017. [DOI: 10.1515/psr-2017-0134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Abstract
Chemical synthesis has its roots in the empirical approach of alchemy. Nonetheless, the birth of the scientific method, the technical and technological advances (exploiting revolutionary discoveries in physics) and the improved management and sharing of growing databases greatly contributed to the evolution of chemistry from an esoteric ground into a mature scientific discipline during these last 400 years. Furthermore, thanks to the evolution of computational resources, platforms and media in the last 40 years, theoretical chemistry has added to the puzzle the final missing tile in the process of “rationalizing” chemistry. The use of mathematical models of chemical properties, behaviors and reactivities is nowadays ubiquitous in literature. Theoretical chemistry has been successful in the difficult task of complementing and explaining synthetic results and providing rigorous insights when these are otherwise unattainable by experiment. The first part of this review walks the reader through a concise historical overview on the evolution of the “model” in chemistry. Salient milestones have been highlighted and briefly discussed. The second part focuses more on the general description of recent state-of-the-art computational techniques currently used worldwide by chemists to produce synergistic models between theory and experiment. Each section is complemented by key-examples taken from the literature that illustrate the application of the technique discussed therein.
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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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Yang CH, Hsu CP, Lee SL, Wang KW, Chang JK. Cost-Effective Hierarchical Catalysts for Promoting Hydrogen Release from Complex Hydrides. CHEMSUSCHEM 2015; 8:2713-2718. [PMID: 26150091 DOI: 10.1002/cssc.201500413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 05/14/2015] [Indexed: 06/04/2023]
Abstract
Fe nanoparticles (∼10 nm), used to grow carbon nanotubes (CNTs), have an outstanding ability to catalyze the dehydrogenation of LiAlH4 . The CNTs help connect Fe and LiAlH4 and create microchannels among the composite, thus promoting the release of hydrogen. Inspired by these results, a supercritical-CO2 -fluid-assisted deposition technique is employed to decorate the Fe/CNTs with highly dispersed nanosized Ni (∼2 nm in diameter) for better performance. With the incorporation of 10 wt % of this hierarchical catalyst (Ni/Fe/CNTs), the initial dehydrogenation temperature of LiAlH4 is decreased from ∼135 to ∼40 °C. At 100 °C, this catalyzed LiAlH4 takes only ∼0.1 h to release 4.5 wt % hydrogen, which is more than 100 times faster than the time needed with pristine LiAlH4 . The dehydrogenation mechanism of the complex hydride is examined using in situ synchrotron X-ray diffraction.
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Affiliation(s)
- Cheng-Hsien Yang
- Institute of Materials Science and Engineering, National Central University, 300 Jhong-Da Road, Taoyuan (Taiwan), Fax: (+886) 3-2805034
| | - Chih-Ping Hsu
- Institute of Materials Science and Engineering, National Central University, 300 Jhong-Da Road, Taoyuan (Taiwan), Fax: (+886) 3-2805034
| | - Sheng-Long Lee
- Institute of Materials Science and Engineering, National Central University, 300 Jhong-Da Road, Taoyuan (Taiwan), Fax: (+886) 3-2805034
| | - Kuan-Wen Wang
- Institute of Materials Science and Engineering, National Central University, 300 Jhong-Da Road, Taoyuan (Taiwan), Fax: (+886) 3-2805034
| | - Jeng-Kuei Chang
- Institute of Materials Science and Engineering, National Central University, 300 Jhong-Da Road, Taoyuan (Taiwan), Fax: (+886) 3-2805034.
- Department of Chemical and Materials Engineering, National Central University, 300 Jhong-Da Road, Taoyuan (Taiwan).
- Department of Mechanical Engineering, National Central University, 300 Jhong-Da Road, Taoyuan (Taiwan).
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Nicholson KM, Sholl DS. First-Principles Screening of Complex Transition Metal Hydrides for High Temperature Applications. Inorg Chem 2014; 53:11833-48. [DOI: 10.1021/ic501990p] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kelly M. Nicholson
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332-0100, United States
| | - David S. Sholl
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332-0100, United States
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16
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Validation of the reaction thermodynamics paths associated with LiK(BH4)2 by detection of metastable reaction paths from first-principles calculations. Struct Chem 2014. [DOI: 10.1007/s11224-014-0516-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Batalović K, Radaković J, Belošević-Čavor J, Koteski V. Transition metal doping of Mg2FeH6--a DFT insight into synthesis and electronic structure. Phys Chem Chem Phys 2014; 16:12356-61. [PMID: 24825440 DOI: 10.1039/c4cp01020e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mg2FeH6 is a promising hydrogen storage material with one of the highest volumetric hydrogen density among the known hydrogen storage materials. However, its complicated synthesis and high temperature of hydrogen desorption limit wider applications. In this paper we study the influence of transition metal (Ni, Co, Mn) doping on the structural, electronic and hydrogen sorption properties of Mg2FeH6, using first-principles density functional theory calculations. The thermodynamics of three different synthesis routes is addressed, and all of the mentioned transition metals are found to destabilize Mg2FeH6. In addition, a detailed study of electronic structure properties, including densities of states (DOS) and charge transfer analysis (AIM), reveals that the doping with Ni, Mn and Co leads to the reduction of the direct band gap of Mg2FeH6.
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Affiliation(s)
- Katarina Batalović
- Laboratory for nuclear and plasma physics, Vinča Institute of Nuclear Sciences, University of Belgrade, PO Box 522, 11001 Belgrade, Serbia.
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18
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Tran HD, Amsler M, Botti S, Marques MAL, Goedecker S. First-principles predicted low-energy structures of NaSc(BH4)4. J Chem Phys 2014; 140:124708. [DOI: 10.1063/1.4869194] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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Chandrasekhar N, Sholl DS. Quantitative computational screening of Pd-based intermetallic membranes for hydrogen separation. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2013.11.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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20
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Lei H, Wang C, Yao Y, Wang Y, Hupalo M, McDougall D, Tringides M, Ho K. Strain effect on the adsorption, diffusion, and molecular dissociation of hydrogen on Mg (0001) surface. J Chem Phys 2013; 139:224702. [DOI: 10.1063/1.4839595] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Guo Y, Ren Y, Wu H, Jia J. Prediction of thermodynamically reversible hydrogen storage reactions utilizing Ca-M(M = Li, Na, K)-B-H systems: a first-principles study. J Mol Model 2013; 19:5135-42. [PMID: 24092266 DOI: 10.1007/s00894-013-2012-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Accepted: 09/12/2013] [Indexed: 10/26/2022]
Abstract
Calcium borohydride is a potential candidate for onboard hydrogen storage because it has a high gravimetric capacity (11.5 wt.%) and a high volumetric hydrogen content (∼130 kg m(-3)). Unfortunately, calcium borohydride suffers from the drawback of having very strongly bound hydrogen. In this study, Ca(BH₄)₂ was predicted to form a destabilized system when it was mixed with LiBH₄, NaBH₄, or KBH₄. The release of hydrogen from Ca(BH₄)₂ was predicted to proceed via two competing reaction pathways (leading to CaB₆ and CaH₂ or CaB₁₂H₁₂ and CaH₂) that were found to have almost equal free energies. Using a set of recently developed theoretical methods derived from first principles, we predicted five new hydrogen storage reactions that are among the most attractive of those presently known. These combine high gravimetric densities (>6.0 wt.% H₂) with have low enthalpies [approximately 35 kJ/(mol(-1) H₂)] and are thermodynamically reversible at low pressure within the target window for onboard storage that is actively being considered for hydrogen storage applications. Thus, the first-principles theoretical design of new materials for energy storage in future research appears to be possible.
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Affiliation(s)
- Yajuan Guo
- School of Chemistry and Materials Science, Shanxi Normal University, Linfen, 041004, China
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22
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Zhang Q, Li B, Chen L. First-Principles Study of Microporous Magnets M-MOF-74 (M = Ni, Co, Fe, Mn): the Role of Metal Centers. Inorg Chem 2013; 52:9356-62. [DOI: 10.1021/ic400927m] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Qiuju Zhang
- Ningbo Institute of Materials Technology
and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, People’s Republic of China
| | - Baihai Li
- Ningbo Institute of Materials Technology
and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, People’s Republic of China
- Department of Materials
Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Liang Chen
- Ningbo Institute of Materials Technology
and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, People’s Republic of China
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23
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Guo Y, Jia J, Wang X, Wu H. Prediction the thermodynamics reaction associated with NaK(BH4)2 and detection metastable paths from first principles calculation. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.05.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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24
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Kim KC. Validation of the reaction thermodynamics associated with NaSc(BH4)4 from first-principles calculations: Detecting metastable paths and identifying the minimum free energy path. J Chem Phys 2012; 137:084111. [PMID: 22938222 DOI: 10.1063/1.4748262] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Ki Chul Kim
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.
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25
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Li B, Kaye SS, Riley C, Greenberg D, Galang D, Bailey MS. Hydrogen storage materials discovery via high throughput ball milling and gas sorption. ACS COMBINATORIAL SCIENCE 2012; 14:352-8. [PMID: 22616741 DOI: 10.1021/co2001789] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The lack of a high capacity hydrogen storage material is a major barrier to the implementation of the hydrogen economy. To accelerate discovery of such materials, we have developed a high-throughput workflow for screening of hydrogen storage materials in which candidate materials are synthesized and characterized via highly parallel ball mills and volumetric gas sorption instruments, respectively. The workflow was used to identify mixed imides with significantly enhanced absorption rates relative to Li2Mg(NH)2. The most promising material, 2LiNH2:MgH2 + 5 atom % LiBH4 + 0.5 atom % La, exhibits the best balance of absorption rate, capacity, and cycle-life, absorbing >4 wt % H2 in 1 h at 120 °C after 11 absorption-desorption cycles.
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Affiliation(s)
- Bin Li
- Wildcat Discovery Technologies, Inc., San Diego, California 92121, United States
| | - Steven S. Kaye
- Wildcat Discovery Technologies, Inc., San Diego, California 92121, United States
| | - Conor Riley
- Wildcat Discovery Technologies, Inc., San Diego, California 92121, United States
| | - Doron Greenberg
- Wildcat Discovery Technologies, Inc., San Diego, California 92121, United States
| | - Daniel Galang
- Wildcat Discovery Technologies, Inc., San Diego, California 92121, United States
| | - Mark S. Bailey
- Wildcat Discovery Technologies, Inc., San Diego, California 92121, United States
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26
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Moderate Temperature Dense Phase Hydrogen Storage Materials within the US Department of Energy (DOE) H2 Storage Program: Trends toward Future Development. CRYSTALS 2012. [DOI: 10.3390/cryst2020413] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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27
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Kato S, Borgschulte A, Bielmann M, Züttel A. Interface reactions and stability of a hydride composite (NaBH4 + MgH2). Phys Chem Chem Phys 2012; 14:8360-8. [DOI: 10.1039/c2cp23491b] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Mao J, Guo Z, Liu H. Enhanced hydrogen storage properties of NaAlH4co-catalysed with niobium fluoride and single-walled carbon nanotubes. RSC Adv 2012. [DOI: 10.1039/c1ra00645b] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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29
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Cheng F, Tao Z, Liang J, Chen J. Efficient hydrogen storage with the combination of lightweight Mg/MgH2 and nanostructures. Chem Commun (Camb) 2012; 48:7334-43. [DOI: 10.1039/c2cc30740e] [Citation(s) in RCA: 134] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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30
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Kim KC, Kang SG, Sholl DS. Predictions of Sulfur Resistance in Metal Membranes for H2 Purification Using First-Principles Calculations. Ind Eng Chem Res 2011. [DOI: 10.1021/ie201888x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Ki Chul Kim
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332-0100, United States
| | - Sung Gu Kang
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332-0100, United States
| | - David S. Sholl
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332-0100, United States
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31
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Jiang W, DeYonker NJ, Determan JJ, Wilson AK. Toward accurate theoretical thermochemistry of first row transition metal complexes. J Phys Chem A 2011; 116:870-85. [PMID: 22107449 DOI: 10.1021/jp205710e] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The recently developed correlation consistent Composite Approach for transition metals (ccCA-TM) was utilized to compute the thermochemical properties for a collection of 225 inorganic molecules containing first row (3d) transition metals, ranging from the monohydrides to larger organometallics such as Sc(C(5)H(5))(3) and clusters such as (CrO(3))(3). Ostentatiously large deviations of ccCA-TM predictions stem mainly from aging and unreliable experimental data. For a subset of 70 molecules with reported experimental uncertainties less than or equal to 2.0 kcal mol(-1), regardless of the presence of moderate multireference character in some molecules, ccCA-TM achieves transition metal chemical accuracy of ±3.0 kcal mol(-1) as defined in our earlier work [J. Phys. Chem. A2007, 111, 11269-11277] by giving a mean absolute deviation of 2.90 kcal mol(-1) and a root-mean-square deviation of 3.91 kcal mol(-1). As subsets are constructed with decreasing upper limits of reported experimental uncertainties (5.0, 4.0, 3.0, 2.0, and 1.0 kcal mol(-1)), the ccCA-TM mean absolute deviations were observed to monotonically drop off from 4.35 to 2.37 kcal mol(-1). In contrast, such a trend is missing for DFT methods as exemplified by B3LYP and M06 with mean absolute deviations in the range 12.9-14.1 and 10.5-11.0 kcal mol(-1), respectively. Salient multireference character, as demonstrated by the T(1)/D(1) diagnostics and the weights (C(0)(2)) of leading electron configuration in the complete active self-consistent field wave function, was found in a significant amount of molecules, which can still be accurately described by the single reference ccCA-TM. The ccCA-TM algorithm has been demonstrated as an accurate, robust, and widely applicable model chemistry for 3d transition metal-containing species with versatile bonding features.
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Affiliation(s)
- Wanyi Jiang
- Center for Advanced Scientific Computing and Modeling (CASCaM), Department of Chemistry, University of North Texas, Denton, Texas 76203-5070, USA
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32
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Abstract
AbstractIn contrast to the traditional metal hydrides, in which hydrogen storage involves the reversible hydrogen entering/exiting of the host hydride lattice, LiBH4 releases hydrogen via decomposition that produces segregated LiH and amorphous B phases. This is obviously the reason why lithium borohydride applications in fuel cells so far meet only one requirement — high hydrogen storage capacity. Nevertheless, its thermodynamics and kinetics studies are very active today and efficient ways to meet fuel cell requirements might be done through lowering the temperature for hydrogenation/dehydrogenation and suitable catalyst. Some improvements are expected to enable LiBH4 to be used in on-board hydrogen storage.
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Abstract
Over the past decade the theoretical description of surface reactions has undergone a radical development. Advances in density functional theory mean it is now possible to describe catalytic reactions at surfaces with the detail and accuracy required for computational results to compare favourably with experiments. Theoretical methods can be used to describe surface chemical reactions in detail and to understand variations in catalytic activity from one catalyst to another. Here, we review the first steps towards using computational methods to design new catalysts. Examples include screening for catalysts with increased activity and catalysts with improved selectivity. We discuss how, in the future, such methods may be used to engineer the electronic structure of the active surface by changing its composition and structure.
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34
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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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35
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David WIF. Effective hydrogen storage: a strategic chemistry challenge. Faraday Discuss 2011; 151:399-414. [DOI: 10.1039/c1fd00105a] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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36
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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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37
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Semidey-Flecha L, Ling C, Sholl DS. Detailed first-principles models of hydrogen permeation through PdCu-based ternary alloys. J Memb Sci 2010. [DOI: 10.1016/j.memsci.2010.06.063] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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38
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Duan Y, Sorescu DC. CO2 capture properties of alkaline earth metal oxides and hydroxides: A combined density functional theory and lattice phonon dynamics study. J Chem Phys 2010; 133:074508. [DOI: 10.1063/1.3473043] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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39
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Vajo JJ, Li W, Liu P. Thermodynamic and kinetic destabilization in LiBH4/Mg2NiH4: promise for borohydride-based hydrogen storage. Chem Commun (Camb) 2010; 46:6687-9. [PMID: 20714534 DOI: 10.1039/c0cc01026j] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reversible LiBH(4)/Mg(2)NiH(4) combined hydride system for hydrogen storage displays a concerted dehydrogenation reaction beginning at 250 degrees C with significantly low enthalpy (DeltaH = 15.4 +/- 2 kJ mol(-1) H(2)) and entropy (DeltaS = 62.2 +/- 3 J K(-1) mol(-1) H(2)).
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Affiliation(s)
- John J Vajo
- HRL Laboratories, LLC, 3011 Malibu Canyon Road, Malibu, CA 90265, USA.
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40
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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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41
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Kuznetsov VL, Edwards PP. Functional materials for sustainable energy technologies: four case studies. CHEMSUSCHEM 2010; 3:44-58. [PMID: 19943280 DOI: 10.1002/cssc.200900190] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The critical topic of energy and the environment has rarely had such a high profile, nor have the associated materials challenges been more exciting. The subject of functional materials for sustainable energy technologies is demanding and recognized as a top priority in providing many of the key underpinning technological solutions for a sustainable energy future. Energy generation, consumption, storage, and supply security will continue to be major drivers for this subject. There exists, in particular, an urgent need for new functional materials for next-generation energy conversion and storage systems. Many limitations on the performances and costs of these systems are mainly due to the materials' intrinsic performance. We highlight four areas of activity where functional materials are already a significant element of world-wide research efforts. These four areas are transparent conducting oxides, solar energy materials for converting solar radiation into electricity and chemical fuels, materials for thermoelectric energy conversion, and hydrogen storage materials. We outline recent advances in the development of these classes of energy materials, major factors limiting their intrinsic functional performance, and potential ways to overcome these limitations.
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Affiliation(s)
- V L Kuznetsov
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
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42
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Yang J, Sudik A, Wolverton C, Siegel DJ. High capacity hydrogenstorage materials: attributes for automotive applications and techniques for materials discovery. Chem Soc Rev 2010; 39:656-75. [DOI: 10.1039/b802882f] [Citation(s) in RCA: 884] [Impact Index Per Article: 63.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Bligaard T. Linear Energy Relations and the Computational Design of Selective Hydrogenation/Dehydrogenation Catalysts. Angew Chem Int Ed Engl 2009; 48:9782-4. [DOI: 10.1002/anie.200905141] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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44
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Bligaard T. Lineare Energiebeziehungen und rechnergestütztes Design selektiver Hydrierungs-/Dehydrierungskatalysatoren. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200905141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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45
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Eberle U, Felderhoff M, Schüth F. Chemical and Physical Solutions for Hydrogen Storage. Angew Chem Int Ed Engl 2009; 48:6608-30. [DOI: 10.1002/anie.200806293] [Citation(s) in RCA: 1098] [Impact Index Per Article: 73.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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46
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Eberle U, Felderhoff M, Schüth F. Chemische und physikalische Lösungen für die Speicherung von Wasserstoff. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200806293] [Citation(s) in RCA: 173] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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47
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Kim KC, Dai B, Karl Johnson J, Sholl DS. Assessing nanoparticle size effects on metal hydride thermodynamics using the Wulff construction. NANOTECHNOLOGY 2009; 20:204001. [PMID: 19420649 DOI: 10.1088/0957-4484/20/20/204001] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The reaction thermodynamics of metal hydrides are crucial to the use of these materials for reversible hydrogen storage. In addition to altering the kinetics of metal hydride reactions, the use of nanoparticles can also change the overall reaction thermodynamics. We use density functional theory to predict the equilibrium crystal shapes of seven metals and their hydrides via the Wulff construction. These calculations allow the impact of nanoparticle size on the thermodynamics of hydrogen release from these metal hydrides to be predicted. Specifically, we study the temperature required for the hydride to generate a H(2) pressure of 1 bar as a function of the radius of the nanoparticle. In most, but not all, cases the hydrogen release temperature increases slightly as the particle size is reduced.
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Affiliation(s)
- Ki Chul Kim
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332-0100, USA
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48
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Hao S, Widom M, Sholl DS. Probing hydrogen interactions with amorphous metals using first-principles calculations. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2009; 21:115402. [PMID: 21693917 DOI: 10.1088/0953-8984/21/11/115402] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Amorphous metals are interesting candidates for use as H(2) purification membranes and occur in some applications of H(2) storage. We introduce a general strategy combining density functional theory and statistical mechanics for quantitatively predicting the properties of interstitial H in amorphous metals. We systematically investigate H solubility in amorphous Fe(3)B, comparing our results with ones for a crystalline material with the same composition. H-H interactions in the amorphous material play a crucial role in determining the net solubility. H solubility in the amorphous and crystalline materials differs by orders of magnitude under conditions relevant for practical H(2) purification membranes. Our results give atomic-level insight into the properties of H in amorphous metals that has not been previously available.
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Affiliation(s)
- Shiqiang Hao
- Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA. National Energy Technology Laboratory, Pittsburgh, PA 15236, USA
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49
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Kelkar T, Pal S. A computational study of electronic structure, thermodynamics and kinetics of hydrogen desorption from Al- and Si-doped α-, γ-, and β-MgH2. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b901115c] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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50
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Mandal TK, Gregory DH. Hydrogen storage materials: present scenarios and future directions. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b818951j] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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