Synthesis Of Nano-structured Materials By Low-heating Solid-state Reaction

Compared with bulk materials, nano-materials have remarkable differentoptical, electrical, magnetic, and chemical properties, which lead to theirconsiderable application background for catalysis, electronic, magnetic storageand super conductance due to their minisize and big specific surface areas.During the past decade, people have devoted to the synthesis, properties, andapplication of nanomaterials. Low-heating solid-state reaction has beendeveloped since the late of 1980's. It is successfully applied in the synthesis ofsome kind of inorganic nanoparticles and nanowires and shows many advantagessuch as high efficiency, less energy consumption, without pollution andconvenience. Thus the low heating solid-state reaction has broad applicationprospects in materials synthesis areas. This thesis consists of five chapters. 1. The first chapter summarizes the basic conception, categories, the basicphysical effects, the research progresses of nanomaterials and the synthesismethods of quasi-1D solid nanomaterials. Meanwhile, it also introduces theresearch background and its application in materials synthesis of low-heatingsolid-state reaction. Based on this information, the purpose and main contents ofthis thesis were also put forward. 2. In the second chapter, trans- and cis- Cu(glyo)2·H2O nanoparticles wereprepared by a novel one-step room temperature solid-state reaction andanhydrous trans-Cu(glyo)2 nanorods were also prepared by the reaction above inthe presence of a nonionic surfactant. The formation mechanisms were alsodiscussed.3. In the third chapter, trans-Cu(glyo)2 hollow nano-chains were obtained bydecomposing trans-Cu(glyo)2.H2O precursor at 140oC for 2h. Furthermore,trans-[Cu(glyo)2] nano-networks were also prepared by one-step, solid-statereaction in the presence of a nonionic surfactant. 4. In the forth chapter, surface-modified lead iodide nanorods aresynthesized by a novel one-step room temperature solid-state reaction in thepresence of a nonionic surfactant. The experiments confirm the existence oforganic layer which was connected with the inorganic nuclei. The degree ofpolymerization of surfactant will also greatly impacts the morphology of theproducts 5. In the last chapter, the bis-(8-hydroxyquinoline) cobalt nanorods,bis-(8-hydroxyquinoline) nickel nanobelts and bis-(8-hydroxyquinoline) coppernanoparticles were successfully prepared by low-heating solid-state reaction.