| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydrogen absorbing and desorbing fluid enabling the sedimentation of fine particles to be suppressed even if the fluid is left for a long period of time and also enabling its deterioration to be suppressed even if a number of cycles where hydrogen absorption and hydrogen desorption are repeated is increased by dispersing the fine particles having both hydrogen absorbing power and hydrogen desorbing power in a solvent and also by including a sedimentation inhibitor which suppresses the sedimentation of the fine particles. SOLUTION: In this fluid, at least one kind selected from hydrogen absorbing metals such as Pd, Mg and Zr and alloys such as a Pd-based alloy, a rare earth element-based alloy (a La-based alloy, a Ce-based alloy, a misch metal, etc.), a Fe-Ti-based alloy, a Mg-based alloy and a Zr-based alloy can be employed as a hydrogen absorbing substance. As fine particles having both hydrogen absorbing power and hydrogen desorbing power, colloidal particles having an average particle diameter of 1 nm to 1μm can be employed. As a solvent, an aqueous solvent, an organic solvent or the like which can disperse fine particles can be employed. A sedimentation inhibitor preferably is selected from those which have an affinity for a solvent for dispersing fine particles.
|
