Nanorods of copper and nickel oxalates synthesized by the reverse micellar route

被引:47
作者
Ahmad, T
Chopra, R
Ramanujachary, KV
Lofland, SE
Ganguli, AK
机构
[1] Indian Inst Technol, Dept Chem, New Delhi 110016, India
[2] Rowan Univ, Ctr Mat Res & Educ, Dept Chem & Phys, Glassboro, NJ 08028 USA
关键词
nanorods; reverse micelle; copper oxalate; nickel oxalate; transmission electron microscopy; magnetic properties;
D O I
10.1166/jnn.2005.440
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Nanorods of nickel and copper oxalate have been synthesized by the reverse micellar route. Powder X-ray diffraction studies and thermo gravimetric analysis confirms the formation of monophasic NiC2O4 (.) 2H(2)O and CUC2O4 (.) H2O. Transmission electron microscopy shows that the as prepared nanorods of nickel and copper have diameter of 250 nm and 130 nm while the length is of the order of 2.5 mu m and 480 nm respectively. The aspect ratio of the nanorods could be modified by changing the solvent. The nickel oxalate nanorods appear very smooth with uniform length while the copper oxalate nanorods appear to be corrugated. Nickel oxalate dihydrate nanorods show an antiferromagnetic transition at T-N = 34 K while the copper based nanorods show temperature independent paramagnetism.
引用
收藏
页码:1840 / 1845
页数:6
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