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yanbo1986
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5Â¥2012-05-28 13:50:47
yanbo1986
Ìú¸Ëľ³æ (ÕýʽдÊÖ)
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2Â¥2012-05-28 10:56:01
sanmiwyq
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viviensweety: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú 2012-05-29 12:38:15
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viviensweety: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú 2012-05-29 12:38:15
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We synthesized CuNWs by reducing Cu(NO 3 ) 2 with hydrazine in an aqueous solution containing NaOH and ethylenediamine (EDA), following the approach developed by Zeng and coworkers. [ 13 ] Compared to this previous work, we have scaled up the reaction by 200 times (from 0.006 to 1.2 g of CuNWs) to demonstrate its potential for large-scale production. For the scale up reaction ( Figure 1 ) NaOH (2000 mL, 15M), Cu(NO 3 ) 2 (100 mL, 0.2M), EDA (30 mL), and hydrazine (2.5 mL, 35 wt%) were added to a reaction fl ask and heated at 80 ¡ã C for 60 minutes. The solution went from a royal blue (Figure 1 a), indicative of Cu 2 + ions, to a reddish brown color indicative of CuNW formation (Figure 1 b) after 20 minutes. After the reaction, the CuNWs were washed with a 3 wt% aqueous solution of hydrazine, and stored in the same hydrazine solution at room temperature under an argon atmosphere to minimize oxidation. [ 13 ] ²Î¿¼ÎÄÏ×The Growth Mechanism of Copper Nanowires and Their Properties in Flexible, Transparent Conducting Films £¨Adv. Mater. 2010, 22, 3558¨C3563£© |
3Â¥2012-05-28 11:15:57
viviensweety
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4Â¥2012-05-28 13:35:58













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