Chaudhari Nitin K, Fang Baizeng, Bae Tae-Sung, Yu Jong-Sung
Department of Advanced Materials Chemistry, BK21 Research Team, Korea University, Jochiwon, ChungNam 339-700, Republic of Korea.
J Nanosci Nanotechnol. 2011 May;11(5):4457-62. doi: 10.1166/jnn.2011.3687.
An easy aqueous 'one-pot' synthesis route for the fabrication of single crystalline uniform iron hydroxide (beta-FeOOH) nanorods at low temperature is reported. beta-FeOOH nanorods with diameters of 5-37 nm and lengths up to 45-185 nm were obtained by varying the reaction parameters. Addition of ethanol was found to be crucial to control the aspect ratio. After calcination at 250 degrees C for 2 h the as-obtained beta-FeOOH nanorods was converted to alpha-Fe2O3 nanorods. To the best of our knowledge, beta-FeOOH nanorods having diameter less than 6 nm is reported for the first time.
报道了一种简便的水相“一锅法”低温合成路线，用于制备单晶均匀氢氧化铁（β-FeOOH）纳米棒。通过改变反应参数，获得了直径为5-37nm、长度可达45-185nm的β-FeOOH纳米棒。发现添加乙醇对于控制长径比至关重要。在250℃煅烧2小时后，所得的β-FeOOH纳米棒转变为α-Fe2O3纳米棒。据我们所知，首次报道了直径小于6nm的β-FeOOH纳米棒。
