We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Facile synthesis of Cu nanoparticles on different morphology ZrO<sub>2</sub> supports for catalytic hydrogen generation from ammonia borane.
- Authors
Zhu, Jianjun; Ma, Lirong; Feng, Jin; Geng, Tianli; Wei, Wei; Xie, Jimin
- Abstract
In this paper, the X% Cu-ZrO2 (X = 0, 1, 5, 10, 15 and 20) xerogel catalysts have been successfully synthesized via a facile two-step approach involving epoxide-driven sol-gel method followed by chemical reduction. The series xerogel catalysts were characterized using XRD, SEM-EDS, TEM, XPS, H2-TPR, N2 adsorption-desorption and FT-IR. The results showed that the morphologies of ZrO2 partly have changed from bulk to nanorods with the increase in Cu loading from 0 to 20%. The catalysts exerted Cu content-dependent activities towards the catalytic hydrolysis of ammonia borane (AB). Among them, the 15% Cu-ZrO2 showed the best catalytic activity that the maximum hydrogen generation rate was 0.384 mol min−1. The hydrolysis reaction towards AB was proved to the first order by the 15% Cu-ZrO2 xerogel by kinetic studies. The activation energy was calculated to be 22.34 kJ mol−1. Even after five recycle experiment, the catalysts also showed a good recycle stability in aqueous solution.
- Subjects
COPPER compounds synthesis; NANOPARTICLES; SURFACE morphology; ZIRCONIUM oxide; CATALYTIC hydrogenation; AMMONIA
- Publication
Journal of Materials Science: Materials in Electronics, 2018, Vol 29, Issue 17, p14971
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-018-9635-6