A5035527760- Hydrogen Storage and Materials
- Ammonia Synthesis and Nitrogen Reduction
- Magnesium Alloys: Properties and Applications
- Hybrid Renewable Energy Systems
- Nuclear Materials and Properties
- Advanced Chemical Physics Studies
- Spacecraft and Cryogenic Technologies
- Catalytic Processes in Materials Science
- Metal-Organic Frameworks: Synthesis and Applications
- Carbon Dioxide Capture Technologies
- Advanced Battery Technologies Research
- Mesoporous Materials and Catalysis
- Superconductivity in MgB2 and Alloys
- Intermetallics and Advanced Alloy Properties
- Zeolite Catalysis and Synthesis
- Thermal Expansion and Ionic Conductivity
- Integrated Energy Systems Optimization
- Catalysis and Hydrodesulfurization Studies
- nanoparticles nucleation surface interactions
- Energetic Materials and Combustion
- Catalysts for Methane Reforming
- Fusion materials and technologies
- MXene and MAX Phase Materials
- Engineering and Environmental Studies
- Social Acceptance of Renewable Energy
National Institute of Advanced Industrial Science and Technology
2009-2024
Hokkaido University
2006-2009
Osaka Prefecture University
2002-2004
Here we show a novel chemical vapor synthesis technique, which uses high-pressure hydrogen and produces needle-shaped single crystalline made of metal hydride MgH2. The principle this method is based on the gas phase reaction vaporized with high pressure sublimating into solid (Mg(g) + H2(g) → MgH2(s)). This can directly produce pure single-phased MgH2, while conventional solid-gas (Mg(s) MgH2(s)) hardly purity hydride. X-ray spectrum as-synthesized product was MgH2 rutile structure....
ABSTRACT Metal hydrides enable excellent thermal energy storage due to their high density, extended capability, and cost‐effective operation. A metal hydride‐driven system couples two reactors that assist in thermochemical using cyclic hydride reactors, operating at both low temperatures, serve for the of hydrogen energy, respectively. The integration efficient technology is known enhance efficiency solar systems. In this regard, during peak hours high‐temperature supply heat can be utilized...
Pure Mg2NiH4 was first prepared by Hydriding Combustion Synthesis (HCS), under which pressure and temperature were sensitively controlled. The purpose of this paper to study "Pressure-Composition-Temperature (PCT)" properties the HCSed product, in hydrogen storage capacity, hydriding reaction rate, PCT curves mainly examined, comparison commercially available i.e., Ingot Metallurgy product. results showed that has 3.6 mass%, same as theoretical value, capacity cycle just after synthesized...
Hydrogen storage alloys are attracting worldwide attention as hydrogen suppliers to fuel cells. However, several kinetic problems remain be solved before practical use is possible. A methodology accelerate reactions of hydrogenation and dehydrogenation lower the reaction temperature strongly required. In this study, therefore, overcome these problems, a production method based on hydriding combustion synthesis (HCS) was applied produce metallic hydride directly kinetics product...
Hydriding combustion synthesis (HCS), which utilizes self-propagating exothermic reaction between metallic powders at pressurized hydrogen, was originally developed for metal hydride production. It offers many advantages to save processing time, reduce productive cost, and synthesize high purity product. In this paper, a feasibility study of HCS conducted by means enthalpy-exergy diagram, in Mg2NiH4 selected as the final We estimated exergy losses two production systems: One HCS, other...