Study On Synthesis Of One-dimensional Nanomaterials Via Salt-assisted Solid-state Synthesis

In this paper one-dimensional (1D) nanomaterials was firstly and successfully prepared by means of salt-assisted synthesis and the Solid-state Growth Mechanism (SSGM), a novel growth mechanism of 1D nanomaterials, has been proposed. The precursors of nanoparticles were synthesized via microemulsion technique and a solid-state reaction method, respectively. The solid-state phase of the precursors can grow by selecting suitable salt medium and heat treatment, resulting in forming nanorods, nanowires(nanowhiskers), nanobelts, nanotubes. It was observed that middle products of necklace-like aggregation of manganese oxide and net-like of nanowhiskers of titanium oxide exited in their growth process, which can in great agreement with SSGM. The influence of salt medium, annealing temperature and the critical size of nanoparticles on growth process was analyzed in detail. It is found that SSGM can be used to explain the growth of one-dimensional nanomaterials such as manganese oxide, chromium oxide, titanium oxide, iron oxide and sin oxide.