A hydrolysis process was applied to prepare the compact TiO2 layer using the fresh metastable TIC14 isopropanol/water solution as the precursor solution for the preparation of the inorganic-organic hybrid heterojuncti...A hydrolysis process was applied to prepare the compact TiO2 layer using the fresh metastable TIC14 isopropanol/water solution as the precursor solution for the preparation of the inorganic-organic hybrid heterojunction perovskite solar cells. The optimal compact TiO2 layer prepared from the aqueous solution of 2 mol/L TiCl4 diluted in isopropanol at 1 ： 3 by volume as precursor solution was uniform and with a film thickness of 126 nm. The corresponding perovskite solar cell gave a photovoltaic conversion efficiency of 10.61%.展开更多
Polystyrene supported TiCI4 （Ps-TiCI4） and polystyrene supported FeC13 （Ps-FeC13） were prepared by coordi- nating Lewis acids with polystyrene. The catalysts were characterized by TGA, BET, SEM, IR and pyri- dine-...Polystyrene supported TiCI4 （Ps-TiCI4） and polystyrene supported FeC13 （Ps-FeC13） were prepared by coordi- nating Lewis acids with polystyrene. The catalysts were characterized by TGA, BET, SEM, IR and pyri- dine-adsorbed IR. The loading of Ps-TiC14 and Ps-FeCI3 were 0.35 and 0.3 mmol.g-1 respectively. Both catalysts were found to be efficient for the tetrahydropyranylation and detetrahydropyranylation of various alcohols and phenols in different solvents. Two catalysts can be recovered and reused for five times with good activity.展开更多
基金Project supported by the National Natural Science Foundation of China(Nos.51472071,51272061,51072043)the National Basic Research Program of China(No.2011CBA00700)
文摘A hydrolysis process was applied to prepare the compact TiO2 layer using the fresh metastable TIC14 isopropanol/water solution as the precursor solution for the preparation of the inorganic-organic hybrid heterojunction perovskite solar cells. The optimal compact TiO2 layer prepared from the aqueous solution of 2 mol/L TiCl4 diluted in isopropanol at 1 ： 3 by volume as precursor solution was uniform and with a film thickness of 126 nm. The corresponding perovskite solar cell gave a photovoltaic conversion efficiency of 10.61%.
文摘Polystyrene supported TiCI4 （Ps-TiCI4） and polystyrene supported FeC13 （Ps-FeC13） were prepared by coordi- nating Lewis acids with polystyrene. The catalysts were characterized by TGA, BET, SEM, IR and pyri- dine-adsorbed IR. The loading of Ps-TiC14 and Ps-FeCI3 were 0.35 and 0.3 mmol.g-1 respectively. Both catalysts were found to be efficient for the tetrahydropyranylation and detetrahydropyranylation of various alcohols and phenols in different solvents. Two catalysts can be recovered and reused for five times with good activity.
