Synthesis and characteristics of Ti–Fe nanoparticles by hydrogen plasma–metal reaction

Synergistic effects of co-dopants on the dehydrogenation kinetics of sodium aluminum hydride

“…It is also probably not a coincidence that Anton [19] categorizes Fe and other related metals such as Cu and Co as only moderately active catalysts for the dehydrogenation of NaAlH 4 , which is consistent with their diminished ability to form hydrides [47]. However, it is well known that alloying some of these metals together produces stable and cyclable metal hydrides, like TiFe [40][41][42][43][44].…”

“…Formation of a TiFe alloy presents one possibility; on the other hand, other scenarios should be considered. A plethora of information in the literature supports the ability of Fe to enhance the performance of Ti, whether through the use of Fe to enhance the hydriding ability of Ti [40][41][42][43][44], or even to enhance the performance of Ti as a catalyst in the hydrogenation/dehydrogenation of organic compounds [45,46], possibly through the formation of redox pairs. It is probably not a coincidence that Ti, Zr and V (in this order) show the best activities with complex hydrides [19], which exactly coincides with the ability of these metals to form hydrides [47].…”

Synthesis of Mg@Mg17Al12 ultrafine particles with superior hydrogen storage properties by hydrogen plasma–metal reaction

“…It is known that stoichiometric compound UFPs cannot form at the very high cooling rate of 10 5 K s À1 during the HPMR process, whereas the non-stoichiometric compounds with a wide composition range can nucleate and grow into intermetallic compound UFPs relatively easily. 34,35 Although the stoichiometric Mg 17 Al 12 contains 58.6 at% Mg, this compound has an extremely broad composition range of approximately 45 to 60.5 at% Mg in the Mg-Al binary system, 36 The metallic UFPs often become more pyrophoric than the corresponding micro-sized particles. They start burning or forming an oxide layer as soon as they come into contact with air.…”

Synthesis and electrochemistry properties of Sn–Sb ultrafine particles as anode of lithium-ion batteries

“…The whole preparation process of UFPs in this study is carried out in a reducing atmosphere and the UFPs were oxidized to a slight extent forming a suitable surface film so as to protect the internal matter from being oxidized before they were taken out from chamber. For some metal particle samples such as Fe or Mg prepared by HPMR, the peak of oxide can be observed obviously [8,10]. However, there is no oxide found from the XRD result of UFPs.…”

“…In addition, HPMR is suitable to prepare UFPs industrially at low cost [5][6][7][8][9]. In this work, we studied synthesis of multi-phase ultrafine Sn-Sb alloys by hydrogen plasma-metal reaction, and their…”