论文部分内容阅读
β-FeOOH nanorods of 40 nm wide and 450 nm long were fabricated through precisely regulating the hydrolysis kinetics of Fe~(3+) in polyethylene glycol and the concentration of Cl~- as the structure-directing agent. Detailed structural and chemical analyses of the intermediates during the synthesis identified that the strong interaction between PEG and Fe~(3+) modulated the hydrolysis kinetics of Fe~(3+) and prevented the aggregation of β-FeOOH nanorods; while Cl~- provided sufficient nucleation sites, stabilized the hollow channel of β-FeOOH, and more importantly induced the growth of the nanorods along [001] direction.
β-FeOOH nanorods of 40 nm wide and 450 nm long were fabricated through precisely the hydrolysis kinetics of Fe ~ (3+) in polyethylene glycol and the concentration of Cl ~ - as the structure-directing agent. Detailed structural and chemical analyzes of the intermediates during the synthesis identified that the strong interaction between PEG and Fe ~ (3+) modulated the hydrolysis kinetics of Fe ~ (3+) and prevented the aggregation of β-FeOOH nanorods; while Cl ~ - providing sufficient nucleation sites, stabilized the hollow channel of β-FeOOH, and more importantly induced the growth of the nanorods along [001] direction.