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Article: Investigators at Peking University zero in on physical chemistry.
- Article from:
- Chemicals & Chemistry
- Article date:
- September 11, 2009
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According to recent research published in the Journal of Physical Chemistry C, "Mg(NH2)(2) with three different particle sizes of 100, 500, and 2000 nm are obtained by a series of reactions between Mg, H-2, and NH3. The ammonia desorption temperature decreases with the particle size."
"In addition, the hydrogen desorption kinetics increases obviously with decreasing the particle size of amide after mixing with LiH. The desorption activation energy of the three mixed samples is 122.2, 134.7, and 182.0 kJ/mol with increasing the particle size. After dehydrogenation, the particle size of the product is similar to that of the amide before dehydrogenation. Due to the ...