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Your search keyword '"Naoko Inomata"' showing total 4 results
Start Over Author "Naoko Inomata" Journal journal of advanced science
4 results on '"Naoko Inomata"'

1. Equilibrium reaction of H2 absorption by Pd

Author

Atushi Takenaka, Cui Wei, Kumi Moriai, Masashi Sato, Hirohisa Uchida, Toshiharu Tabata, and Naoko Inomata

Subjects
Chemistry, Inorganic chemistry, Particle size, Chemical equilibrium, Absorption (chemistry)
Abstract

We measured Pressure-Composition-Temperature relation for the Pd-H system using 150μm, 1μm particle size of Pd powder samples and a Pd powder with 150μm after alkaline pretreatment, respectively. These different samples have marked influence on equilibrium reaction of the Pd-H system.

Published
1997

2. Overview on the utilization of hydrogen energy. Attempt on the new energy generation

Author

Masashi Sato, Yoshihito Matsumura, Osamu Moriwaki, Masaharu Yago, Naoko Inomata, Hirohisa Uchida, Satoru Seki, Kin'ichi Ishikawa, Iichiro Tojo, and T. Inoue

Subjects
Hydrogen storage, Waste management, Hydrogen fuel, Clean energy, Ecology (disciplines), Mathematics::Metric Geometry, Environmental science, Physics::Atomic Physics
Abstract

Recently, many people are interested in the clean energy. We discuss overview on the utilization and history of hydrogen energy. We introduce the hydrogen storage alloy that is the new material for ecology.

Published
1996

3. A kinetic study of hydrogen absorption by the rare earth based hydrogen storage alloys

Author

Naoko Inomata, Osamu Moriwaki, Hirohisa Uchida, Masashi Sato, and Satoru Seki

Subjects
Reaction rate, chemistry.chemical_compound, Hydrogen, chemistry, Inorganic chemistry, Kinetics, Rare earth, Substituent, chemistry.chemical_element, Thermodynamics, Absorption (chemistry), Hydrogen absorption, Kinetic energy
Abstract

The aim of this study is to elucidate the role of each substituent such as Al, Mn and Co in the H2 absorption of LaNi4.5Al0.5, LaNi4.5Mn0.5, LaNi2.5Co2.5 alloys by the measurements of temperature and pressure dependences of the H2 absorption rate. The pressure dependence of the reaction rate was observed, but the pressure dependence of the reaction rate was independt of the temperature change between 273K and 353K. And the activation energies of reaction rates of all sampls were lower than that of LaNi5. The effect of substitution was clearly observed in the kinetics.

Published
1996

4. Equilibrium reaction in the vicinity of hydrogen solubility limit of the LaNi5-H system

Author

Osamu Moriwaki, Satoru Seki, Yoshihito Matsumura, Hirohisa Uchida, Naoko Inomata, and Masashi Sato

Subjects
Hydrogen, chemistry, Thermodynamics, chemistry.chemical_element, Solubility equilibrium, Limit (mathematics), Particle size, Solubility, Chemical equilibrium, Block (periodic table), Molar solubility
Abstract

We measured Pressure-Composition-Temperature relation for the LaNi5-H system using 9mm in the side length of cubic block and less than 64μm particle size of powder sample. The sample size has marked influence on equilibrium pressure in the vicinity of hydrogen solubility limit of the LaNi5-H system.

Published
1996

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