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Author

Masahiko Kimbara

Other affiliations: Toyota Industries
Bio: Masahiko Kimbara is an academic researcher from Toyota. The author has contributed to research in topics: Hydrogen storage & Compressed hydrogen. The author has an hindex of 16, co-authored 46 publications receiving 940 citations. Previous affiliations of Masahiko Kimbara include Toyota Industries.

Papers
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Journal ArticleDOI
TL;DR: In this paper, the authors developed a hydrogen generator that generates high purity hydrogen gas from the aqueous solution of sodium borohydride, NaBH 4, using a Pt-LiCoO 2 -coated honeycomb monolith.

165 citations

Journal ArticleDOI
TL;DR: The gravimetric and the volumetric hydrogen densities increased with increasing water added (H2O/LiBH4) followed by a decrease as discussed by the authors, and the densities reached their maximum values at H 2O/H2H4=13.

126 citations

Journal ArticleDOI
TL;DR: In this paper, a high-pressure MH tank with a hydrogen-absorbing alloy with high dissociation pressure and compressed hydrogen was constructed, and the van't Hoff plots showed that the hydrogen capacity changed gradually over many cycles and that after 1000 cycles was 94% of the initial capacity.

97 citations

Patent
Hidehito Kubo1, Makoto Tsuzuki1, Keiji Toh1, Akiko Kumano1, Daigoro Mori1, Masahiko Kimbara1 
21 Jan 2004
TL;DR: A high pressure tank has a cylindrical liner and a fiber reinforced plastic layer which covers the outer surface of the liner at least one end of the liners is separable.
Abstract: A high pressure tank has a cylindrical liner and a fiber reinforced plastic layer which covers the outer surface of the liner At least one end of the liner is separable The liner includes a cylindrical liner body and a lid An O-ring is located between the contact surfaces of the liner body and the lid in the circumferential direction Each contact surface has a seal surface which contacts the O-ring One of the liner body and the lid has a deformable portion which deforms toward the seal surfaces The structure can securely seal the separated portions of the liner when the high pressure tank is in a high pressure state

54 citations

Patent
Masahiko Kimbara1, Daigoro Mori1, Takehiro Nito1, Hidehito Kubo1, Keiji Toh1 
19 May 2004
TL;DR: In this paper, a hydrogen storage apparatus that includes multiple gas storage tanks that each house a storing/adsorbing material and through the interior of which a fluid travels is provided.
Abstract: A hydrogen storage apparatus that includes multiple gas storage tanks that each house a storing/adsorbing material and through the interior of which a fluid travels is provided. The gas storage apparatus 10 includes roughly cylindrical gas storage tanks 20 that house hydrogen-storing alloy. The multiple gas storage tanks 20 are disposed longitudinally parallel to each other in an ordered fashion such that roughly triangular prism-shaped empty spaces are formed between multiple adjacent hydrogen storage tanks 20. Coolant paths through which coolant flows are formed in these roughly triangular prism-shaped empty spaces. These coolant paths are thermally connected to the hydrogen-storing alloy in the gas storage tanks 20 via constituent members of the gas storage tanks 20 and via heat transfer plates 28 disposed on the gas storage tanks 20.

49 citations


Cited by
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Journal ArticleDOI
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

Journal ArticleDOI
TL;DR: The future of a particularly promising class of materials for hydrogen storage, namely the catalytically enhanced complex metal hydrides, is discussed and the predictions are supported by thermodynamics considerations, calculations derived from molecular orbital (MO) theory and backed up by simple chemical insights and intuition.
Abstract: This review focuses on key aspects of the thermal decomposition of multinary or mixed hydride materials, with a particular emphasis on the rational control and chemical tuning of the strategically important thermal decomposition temperature of such hydrides, Tdec. An attempt is also made to predict the thermal stability of as-yet unknown, elusive or even unknown hydrides. The future of a particularly promising class of materials for hydrogen storage, namely the catalytically enhanced complex metal hydrides, is discussed. The predictions are supported by thermodynamics considerations, calculations derived from molecular orbital (MO) theory and backed up by simple chemical insights and intuition.

1,404 citations

Journal ArticleDOI
TL;DR: Different methods for hydrogen storage are discussed, including high-pressure and cryogenic-liquid storage, adsorptive storage on high-surface-area adsorbents, chemical storage in metal hydride and complex hydrides, and storage in boranes.
Abstract: Hydrogen is a promising energy carrier in future energy systems. However, storage of hydrogen is a substantial challenge, especially for applications in vehicles with fuel cells that use proton-exchange membranes (PEMs). Different methods for hydrogen storage are discussed, including high-pressure and cryogenic-liquid storage, adsorptive storage on high-surface-area adsorbents, chemical storage in metal hydrides and complex hydrides, and storage in boranes. For the latter chemical solutions, reversible options and hydrolytic release of hydrogen with off-board regeneration are both possible. Reforming of liquid hydrogen-containing compounds is also a possible means of hydrogen generation. The advantages and disadvantages of the different systems are compared.

1,222 citations

Journal ArticleDOI
TL;DR: In this article, the potential applications of 3D fiber reinforced polymer composites made by the textile processes of weaving, braiding, stitching, and knitting are reviewed, and the scientific, technical, and economic issues impeding the more widespread use of three-dimensional textile composites are identified.
Abstract: Current and future potential applications for three-dimensional (3D) fibre reinforced polymer composites made by the textile processes of weaving, braiding, stitching and knitting are reviewed. 3D textile composites have a vast range of properties that are superior to traditional 2D laminates, however to date these properties have not been exploited for many applications. The scientific, technical and economic issues impeding the more widespread use of 3D textile composites are identified. Structures that have been made to demonstrate the possible uses of 3D composites are described, and these include applications in aircraft, marine craft, automobiles, civil infrastructure and medical prosthesis.

1,015 citations

Journal ArticleDOI
TL;DR: Main research trends on hydrogen storage materials, including metal hydrides, porous adsorbents and hydrogen clathrates, are reviewed with a focus on recent developments and an appraisal of the challenges ahead.

613 citations