| 摘要 |
Core-shell glass micro-spheres with a glass shell and a hollow or porous core for storing and releasing hydrogen fuel. The shell comprises a glass composition with a glass transition temperature (Tg) below 450° C. (preferably below 300° C. and most preferably below 200° C.) and a heat-absorbing materials, preferably comprising an infrared-absorbing ingredient. A combination of low Tg and the presence of an IR-absorbing material makes it possible to readily achieve a desired temperature T to reduce the shell tensile strength sigma<SUB>t </SUB>to an extent that a tensile stress a experienced by a shell of the micro-spheres meets the condition of a sigma>=alphasigma<SUB>t </SUB>for causing hydrogen to diffuse out of the micro-spheres. The released hydrogen can be fed into a fuel cell or hydrogen combustion engine. Here, alpha is a material-specific constant, typically in the range of 0.3 to 0.7.
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