A novel blue luminescent compound with both hole and electron transplanting groups, 2-(4-(N-ethylcarbazolyl))imidazo\phenanthroline(ECIP), was synthesized. The composition of the compound was confirmed by elemental an...A novel blue luminescent compound with both hole and electron transplanting groups, 2-(4-(N-ethylcarbazolyl))imidazo\phenanthroline(ECIP), was synthesized. The composition of the compound was confirmed by elemental analysis, MS and 1H NMR. Uv-Vis absorption, fluorescence, quantum yield determination and thermal analysis indicate this compound is an excellent blue luminescent material.展开更多
文摘A novel blue luminescent compound with both hole and electron transplanting groups, 2-(4-(N-ethylcarbazolyl))imidazo\phenanthroline(ECIP), was synthesized. The composition of the compound was confirmed by elemental analysis, MS and 1H NMR. Uv-Vis absorption, fluorescence, quantum yield determination and thermal analysis indicate this compound is an excellent blue luminescent material.
文摘采用简单的水解、热处理方法合成三氧化二铁(Fe2O3)负载在三维多级孔类石墨烯(3D HPG)上的复合材料.3D HPG有效的导电网络有利于负载纳米Fe2O3,使其呈均匀分散状态,并有效增强纳米复合物的导电率,提高Fe2O3利用率,抑制纳米Fe2O3的团聚,从而制得稳定、高性能的锂离子电池负极材料.Fe2O3-3D HPG电极在50m A·g-1电流密度下首次放电容量达1745 m Ah·g-1,50周期放电容量保持于1095 m Ah·g-1.
基金The authors gratefully acknowledge the financial support of the project from the National Natural Science Foundation of China (Grant No. 50021202, 59889203,60271026 and 50329201)；Science and Technology Ministry of China (Grant No. 2003CB314701, 2003CB314706)；Education Ministry of China； the Science and Technology Department of Guangdong Province； the Education Department of Guangdong Province；the Science and Technology Department of Guangzhou City.
