Electron microscopy: Hydrogen brightens up
β Scribed by Batson, Philip E.
- Book ID
- 109934952
- Publisher
- Nature Publishing Group
- Year
- 2011
- Tongue
- English
- Weight
- 265 KB
- Volume
- 10
- Category
- Article
- ISSN
- 1476-1122
- DOI
- 10.1038/nmat2993
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## Abstract The hydrogen absorption process is studied in carbonaceous fibers produced from a mixture of methane and hydrogen. The absorption of the hydrogen was examined in two types of fibers, in βasβgrownβ state and after a process of desorption during an annealing to 1.473 K under vacuum. Later
Microstructure of MgH 2 powder particles milled for 5e60 h was studied after the powders were hydrogen cycled. Using electron microscopy we estimated individual grain size and particle size of cycled powders to compare with those before H-cycling. The nano-size grains were found to grow (3e10 times)