Author
Etsuo Akiba
Other affiliations: Hiroshima University, International Institute of Minnesota, Utsunomiya University ...read more
Bio: Etsuo Akiba is an academic researcher from Kyushu University. The author has contributed to research in topics: Hydrogen & Hydrogen storage. The author has an hindex of 50, co-authored 258 publications receiving 7972 citations. Previous affiliations of Etsuo Akiba include Hiroshima University & International Institute of Minnesota.
Topics: Hydrogen, Hydrogen storage, Hydride, Crystal structure, Alloy
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the fundamental physical and chemical properties of hydrogen and basic theories of hydrogen sorption reactions are described, followed by the emphasis on state-of-the-art hydrogen storage properties of selected interstitial metallic hydrides and magnesium hydride, especially for stationary energy storage related utilizations.
462 citations
University of the Western Cape1, Max Planck Society2, Autonomous University of Madrid3, University of Turin4, University of Paris5, Curtin University6, University of Nottingham7, Ben-Gurion University of the Negev8, Aarhus University9, Utrecht University10, University of Bologna11, Technion – Israel Institute of Technology12, South China University of Technology13, Griffith University14
TL;DR: In this paper, a review of the latest activities on both fundamental aspects of Mg-based hydrides and their applications is presented, as well as a historic overview on the topic and outlines projected future developments.
411 citations
TL;DR: In this paper, a new concept of hydrogen absorbing alloy, called Laves phase related BCC solid solution, was proposed, which showed stability of hydrides and reaction kinetics almost identical to intermetallics such as laves phase alloys.
404 citations
TL;DR: In this paper, the authors reviewed the methods used by the authors to synthesize Mg-based hydrogen storage materials with nanostructure as well as some novel techniques from other researchers, and focus on how these nanotechnology processing methods could change kinetics and thermodynamics in Mgbased materials for hydrogen storage.
233 citations
TL;DR: In this paper, it was demonstrated that reactive mechanical Alloying for short time (2 h) is an effective way to strongly improve the hydrogen storage properties of both magnesium and (Mg + 10 wt % M ) mixtures.
209 citations
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TL;DR: Recent developments in the search for innovative materials with high hydrogen-storage capacity are presented.
Abstract: Mobility — the transport of people and goods — is a socioeconomic reality that will surely increase in the coming years. It should be safe, economic and reasonably clean. Little energy needs to be expended to overcome potential energy changes, but a great deal is lost through friction (for cars about 10 kWh per 100 km) and low-efficiency energy conversion. Vehicles can be run either by connecting them to a continuous supply of energy or by storing energy on board. Hydrogen would be ideal as a synthetic fuel because it is lightweight, highly abundant and its oxidation product (water) is environmentally benign, but storage remains a problem. Here we present recent developments in the search for innovative materials with high hydrogen-storage capacity.
7,414 citations
3,536 citations
TL;DR: Nanoalloys of Group 11 (Cu, Ag, Au) 865 5.1.5.2.
Abstract: 5.1. Nanoalloys of Group 11 (Cu, Ag, Au) 865 5.1.1. Cu−Ag 866 5.1.2. Cu−Au 867 5.1.3. Ag−Au 870 5.1.4. Cu−Ag−Au 872 5.2. Nanoalloys of Group 10 (Ni, Pd, Pt) 872 5.2.1. Ni−Pd 872 * To whom correspondence should be addressed. Phone: +39010 3536214. Fax:+39010 311066. E-mail: ferrando@fisica.unige.it. † Universita di Genova. ‡ Argonne National Laboratory. § University of Birmingham. | As of October 1, 2007, Chemical Sciences and Engineering Division. Volume 108, Number 3
3,114 citations
TL;DR: A review of metal hydrides on properties including hydrogen-storage capacity, kinetics, cyclic behavior, toxicity, pressure and thermal response is presented in this article, where a group of Mg-based hydride stand as promising candidate for competitive hydrogen storage with reversible hydrogen capacity up to 7.6 W% for on-board applications.
2,890 citations
TL;DR: It is reported that the use of highly concentrated electrolytes composed of ether solvents and the lithium bis(fluorosulfonyl)imide salt enables the high-rate cycling of a lithium metal anode at high Coulombic efficiency (up to 99.1%) without dendrite growth.
Abstract: Lithium metal is an ideal battery anode. However, dendrite growth and limited Coulombic efficiency during cycling have prevented its practical application in rechargeable batteries. Herein, we report that the use of highly concentrated electrolytes composed of ether solvents and the lithium bis(fluorosulfonyl)imide salt enables the high-rate cycling of a lithium metal anode at high Coulombic efficiency (up to 99.1%) without dendrite growth. With 4 M lithium bis(fluorosulfonyl)imide in 1,2-dimethoxyethane as the electrolyte, a lithium|lithium cell can be cycled at 10 mA cm(-2) for more than 6,000 cycles, and a copper|lithium cell can be cycled at 4 mA cm(-2) for more than 1,000 cycles with an average Coulombic efficiency of 98.4%. These excellent performances can be attributed to the increased solvent coordination and increased availability of lithium ion concentration in the electrolyte. Further development of this electrolyte may enable practical applications for lithium metal anode in rechargeable batteries.
1,824 citations