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Monodisperse Ni3Fe single-crystalline nanospheres as a highly efficient catalyst for the complete conversion of hydrous hydrazine to hydrogen at room temperature
| Content Provider | Semantic Scholar |
|---|---|
| Author | Tong, Dong Ge Tang, Dong Mei Wu, Peiyi |
| Copyright Year | 2013 |
| Abstract | A facile, reliable, and robust synthetic method for the preparation of monodisperse Ni3Fe single-crystalline nanospheres with 182.3 m2 g−1 specific surface area is reported. The results of an investigation of the shape/size distribution, structural characteristics, and composition of these Ni3Fe nanospheres are presented, and a possible mechanism for the formation of the nanospheres at high temperatures in a cetylamine–palmitic acid solution in the presence of tri-iso-butyl thallium and borane trimethylamine complexes is proposed. During the decomposition of hydrazine, when supported on carbon (Ni3Fe/C), the monodisperse Ni3Fe nanospheres exerted 100% H2 selectivity, and showed exceedingly high activity at room temperature. The decomposition reaction is first-order in Ni3Fe concentration, but zero-order in N2H4 concentration; the activation energy was 48.1 ± 2.0 kJ mol−1. Furthermore, the Ni3Fe/C was a stable catalyst for N2H4 hydrolytic dehydrogenation; it provided 15 840 total turnovers in 30 h. An Ni3Fe nanosphere-based catalyst such as this that is efficient under mild reaction conditions represents a promising step toward the practical development of N2H4 as a feasible hydrogen storage medium for fuel cell applications. |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C3TA10321H |
| Alternate Webpage(s) | https://pubs.rsc.org/en/content/articlepdf/2019/ta/c9ta90198a |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/ta/c3/c3ta10321h/c3ta10321h.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/C3TA10321H |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
