Ternary metals disulfide nano-compound, Mn x(MoW) 1-xS 2, was prepared by exfoliating-restacking-structure controlling approach, and characterized by XRD, TEM, SAED and EDS respectively. XRD results show that the phas...Ternary metals disulfide nano-compound, Mn x(MoW) 1-xS 2, was prepared by exfoliating-restacking-structure controlling approach, and characterized by XRD, TEM, SAED and EDS respectively. XRD results show that the phases of the intermediate were composed of MoS 2, WS 2, MnCl 2·H 2O and one unclear phase. The end product was composed of MnS 2, MoS 2 and WS 2 phases. TEM results show that the morphologies of the sample are nano-tubular with ringent. EDS results show that the components of nanotube is Mn x(MoW) 1-xS 2. More detailed work is needed to study the precise structure and formation mechanism for sure.展开更多
A new stearic acid method(SAM) has been used to prepare ultrafine K2La2Ti3O10 nanocrystalline. Each state of synthesis process was followed by the use of FT IR analysis. The resulting materials have been characterized...A new stearic acid method(SAM) has been used to prepare ultrafine K2La2Ti3O10 nanocrystalline. Each state of synthesis process was followed by the use of FT IR analysis. The resulting materials have been characterized by means of XRD, TEM, BET surface area analysis. The acid exchanging property of the obtained product was also studied. The experimental results showed that comparing with the product of traditional solid state reaction, the particle size of the K2La2Ti3O10 synthesized by SAM is greatly reduced, BET surface area is high(more than 11.83m2· g- 1) and has different acid exchanging properties. It can be easily exfoliated in 2mol· L- 1 HNO3 solution.展开更多
文摘Ternary metals disulfide nano-compound, Mn x(MoW) 1-xS 2, was prepared by exfoliating-restacking-structure controlling approach, and characterized by XRD, TEM, SAED and EDS respectively. XRD results show that the phases of the intermediate were composed of MoS 2, WS 2, MnCl 2·H 2O and one unclear phase. The end product was composed of MnS 2, MoS 2 and WS 2 phases. TEM results show that the morphologies of the sample are nano-tubular with ringent. EDS results show that the components of nanotube is Mn x(MoW) 1-xS 2. More detailed work is needed to study the precise structure and formation mechanism for sure.
文摘A new stearic acid method(SAM) has been used to prepare ultrafine K2La2Ti3O10 nanocrystalline. Each state of synthesis process was followed by the use of FT IR analysis. The resulting materials have been characterized by means of XRD, TEM, BET surface area analysis. The acid exchanging property of the obtained product was also studied. The experimental results showed that comparing with the product of traditional solid state reaction, the particle size of the K2La2Ti3O10 synthesized by SAM is greatly reduced, BET surface area is high(more than 11.83m2· g- 1) and has different acid exchanging properties. It can be easily exfoliated in 2mol· L- 1 HNO3 solution.
