SnO2 nanorods were deposited on the Si substrates in an aqueous solution containing both SnCl4 and CO（NH2）2.It is found that different self-assembled patterns of SnO2 nanorods can be obtained by changing the deposit...SnO2 nanorods were deposited on the Si substrates in an aqueous solution containing both SnCl4 and CO（NH2）2.It is found that different self-assembled patterns of SnO2 nanorods can be obtained by changing the deposition conditions such as the molar ratio of CO（NH2）2 to SnCl4 and the pretreatment of the substrate.Scattered SnO2 nanorods,for example,can be changed into flower-like patterns when the molar ratio of CO（NH2）2 to SnCl4 is raised,and well-aligned nanorod arrays can be formed when the pretreatment of the substrate is changed.In addition,some interesting patterns,e.g.tree-like patterns,can also be observed.展开更多
The synthesis of nanostructured Cu2O was conducted in a non-aqueous solution via polyol method at a temperature of 130 ℃. It was found that the formation of Cu2O nanobelts was heavily dependent on the presence of sur...The synthesis of nanostructured Cu2O was conducted in a non-aqueous solution via polyol method at a temperature of 130 ℃. It was found that the formation of Cu2O nanobelts was heavily dependent on the presence of surfactant cetyltrimethylammonium bromide （CTAB）. Cu2O nanobelts with 100400 nm in width and several micrometers in length were only observed when CTAB was used, whereas in other cases where CTAB was absent or CTAB was replaced with polyvinylpyrrolidone （PVP K-30）, only spherical or cube-like particles were formed. The formation mechanism of Cu2O nanobelts was discussed.展开更多
基金supported by the Top Key Discipline of Zhejiang Province:Industrial Catalysis
文摘SnO2 nanorods were deposited on the Si substrates in an aqueous solution containing both SnCl4 and CO（NH2）2.It is found that different self-assembled patterns of SnO2 nanorods can be obtained by changing the deposition conditions such as the molar ratio of CO（NH2）2 to SnCl4 and the pretreatment of the substrate.Scattered SnO2 nanorods,for example,can be changed into flower-like patterns when the molar ratio of CO（NH2）2 to SnCl4 is raised,and well-aligned nanorod arrays can be formed when the pretreatment of the substrate is changed.In addition,some interesting patterns,e.g.tree-like patterns,can also be observed.
基金supported by the Top Key Discipline of Zhejiang Province:Industrial Catalysis
文摘The synthesis of nanostructured Cu2O was conducted in a non-aqueous solution via polyol method at a temperature of 130 ℃. It was found that the formation of Cu2O nanobelts was heavily dependent on the presence of surfactant cetyltrimethylammonium bromide （CTAB）. Cu2O nanobelts with 100400 nm in width and several micrometers in length were only observed when CTAB was used, whereas in other cases where CTAB was absent or CTAB was replaced with polyvinylpyrrolidone （PVP K-30）, only spherical or cube-like particles were formed. The formation mechanism of Cu2O nanobelts was discussed.
