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守伟

铁杆木虫 (正式写手)

[交流] 【讨论】新的氧化石墨烯的合成方法 已有8人参与

最近对石墨烯的合成比较感兴趣,看了一些文献
其中一篇是发在ACS NANO上,对他提出方法,由于还没有动手做过,所以对与这种方法的可靠性,想请各位虫子讨论一下,
按照他的方法一步一步的能不能得到那么多的产量,还有就是他中间过滤时用的是什么膜?多大尺寸?是抽虑吗?
恳请各位虫子不吝赐教!
文章附上
http://g.zhubajie.com/urllink.php?id=10668849bmqn8d478new4xeu
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yuanxy2006

木虫 (正式写手)

★ ★
小木虫(金币+0.5):给个红包,谢谢回帖交流
nuaajsh(金币+1): 鼓励交流 2011-02-28 22:12:14
引用回帖:
Originally posted by tantan1985 at 2011-02-23 14:41:08:
早就看到这篇文章了,也跟楼主同问啊
For workup,
the mixture was sifted through a metal U.S. Standard testing
sieve (W.S. Tyler, 300 m) and then filtered through polyester fiber
(Carpenter Co.)  ...

这个方法很麻烦。把一些大颗粒全部去除了,剩下的都是好质量的产品了。为发高质量的论文而已,其实GO合成方法很简单。后处理也不麻烦
3楼2011-02-25 15:08:01
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tantan1985

木虫 (小有名气)

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小木虫(金币+0.5):给个红包,谢谢回帖交流
nuaajsh(金币+1): 鼓励交流 2011-02-28 22:12:24
早就看到这篇文章了,也跟楼主同问啊
For workup,
the mixture was sifted through a metal U.S. Standard testing
sieve (W.S. Tyler, 300 m) and then filtered through polyester fiber
(Carpenter Co.) The filtrate was centrifuged (4000 rpm for
4 h), and the supernatant was decanted away. The remaining
solid material was then washed in succession with 200 mL of water,
200 mL of 30% HCl, and 200 mL of ethanol (2); for each
wash, the mixture was sifted through the U.S. Standard testing
sieve and then filtered through polyester fiber with the filtrate
being centrifuged (4000 rpm for 4 h) and the supernatant decanted
away. The material remaining after this extended,
multiple-wash process was coagulated with 200 mL of ether,
2楼2011-02-23 14:41:08
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tantan1985

木虫 (小有名气)

★
小木虫(金币+0.5):给个红包,谢谢回帖交流
引用回帖:
Originally posted by yuanxy2006 at 2011-02-25 15:08:01:
这个方法很麻烦。把一些大颗粒全部去除了,剩下的都是好质量的产品了。为发高质量的论文而已,其实GO合成方法很简单。后处理也不麻烦

不知道您锁说的后处理不麻烦,指的是哪种方法,我目前有modified hummer法,后处理还是比较麻烦哈!请教一下哈
4楼2011-02-27 21:35:46
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kingzhe

金虫 (正式写手)

谢谢lz,很有用!
银河纵隔断,自有鹊桥通。偿无恨,断旧情,寻新欢,无以魂归。不曾泪洒相思,唯有强欢颜,拭眼干,露水空垂,云挂天一边。
5楼2011-02-28 18:11:49
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