Cobalt hollow nanospheres: controlled synthesis, modification and highly catalytic performance for hydrolysis of ammonia borane
Article
Article Title | Cobalt hollow nanospheres: controlled synthesis, modification and highly catalytic performance for hydrolysis of ammonia borane |
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ERA Journal ID | 17493 |
Article Category | Article |
Authors | Wei, Wangya (Author), Wang, Zumin (Author), Xu, Jie (Author), Zong, Lingbo (Author), Zhao, Kun (Author), Wang, Hao (Author), Li, Haiyan (Author) and Yu, Ranbo (Author) |
Journal Title | Science Bulletin |
Science Bulletin (Kexuetongbao) | |
Journal Citation | 62 (5), pp. 326-331 |
Number of Pages | 6 |
Year | 2017 |
Publisher | Elsevier |
Zhongguo Kexue Zazhishe, Science in China Press | |
Place of Publication | China |
ISSN | 2095-9281 |
2095-9273 | |
0023-074X | |
1001-6538 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.scib.2017.01.012 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S2095927317300129 |
Abstract | Size tunable cobalt hollow nanospheres with high catalytic activity for the ammonia borane (AB) hydrolysis have been synthesized by using the solvothermal method. The complexation between Co2+ and ethylenediamine is observed to be critical for the formation of the cobalt hollow nanospherical structure. The morphology of the cobalt hollow nanospheres can be regulated by adjusting the original ethylenediamine/ethanol volume ratio, reaction time and temperature. Impressively, the magnetic property study reveals that the coercivity of the as-synthesized cobalt hollow nanospheres is much enhanced compared with that of bulk cobalt materials. Meanwhile, Co/Pt bimetal hollow nanospheres (CoPtHS) and graphene-cobalt hollow composite nanospheres (CoHS-rGO) have also been explored. In comparison with the cobalt hollow nanospheres, both the CoPtHS and CoHS-rGO show higher catalytic activities and better repeatability for the catalytic hydrogen generation from AB hydrolysis. Moreover, it is noted that these catalysts could be recycled by using the magnetic separation method. |
Keywords | Catalysis; Cobalt hollow nanospheres; Controlled synthesis; Hydrolysis; Modification |
ANZSRC Field of Research 2020 | 401605. Functional materials |
Byline Affiliations | University of Science and Technology Beijing, China |
Centre for Future Materials | |
Beijing University of Civil Engineering and Architecture, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q6zx1/cobalt-hollow-nanospheres-controlled-synthesis-modification-and-highly-catalytic-performance-for-hydrolysis-of-ammonia-borane
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