کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1279133 | 1645388 | 2011 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Hydrogen production from ammonia borane via hydrogel template synthesized Cu, Ni, Co composites Hydrogen production from ammonia borane via hydrogel template synthesized Cu, Ni, Co composites](/preview/png/1279133.png)
In situ Co, Cu and Ni nanoparticles were synthesized by chemical reduction of the absorbed Co (II), Cu (II) and Ni (II) ions inside hydrogel networks prepared from 2-acrylamido-2-methyl-1-propansulfonic acid (AMPS) and were used as a catalyst system in the generation of hydrogen in hydrolysis of ammonia borane (AB). Several parameters affecting the hydrolysis reaction such as the type of the metal, the amount of catalyst, the initial concentration of AB, and temperature, were investigated. The activation energy values in the hydrolysis reaction of AB solution in the presence p(AMPS)-Co, p(AMPS)-Cu and p(AMPS)-Ni catalyst systems were calculated as Ea = 47.7 kJ mol−1, 48.8 kJ mol−1 and 52.8 kJ mol−1, respectively. Thus, the catalytic activity of the metal nanoparticles prepared inside the same hydrogel matrix was found to be Ni < Cu < Co.
► Metal nano catalysts prepared inside flexible hydrogel.
► Metal nanoparticle embedded hydrogel reactors.
► Hydrogen generation from ammonia borane by hydrogels containing Co, Ni and Cu metal nanoclusters/particles.
Journal: International Journal of Hydrogen Energy - Volume 36, Issue 14, July 2011, Pages 8209–8216