| 查看: 612 | 回复: 2 | ||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | ||
[求助]
求大神翻译哈，重谢！
|
||
| Reagents were all of AR grade. Water used in the synthesis and washing was deionized. Graphite oxide was prepared from natural graphite powder by a modification of Hummers method.[17] One gram of graphite powder was added to 23 mL of cooled (0°C) concentrated H2SO4。Three temperature of the mixture was maintained below 20°C. The mixture was then stirred at 35°C for 30 min. 46 mL of distilled water was slowly added to cause an increase in temperature to 98°C, and the mixture was maintained at that temperature for 15 min. The reaction was terminated by adding 140 mL of distilled water followed by 10 mL of 30% H2O2 solution. The solid product was separated by centrifugation, washed repeatedly with 5% HCl solution until sulfate could not be detected with BaCl2, and then washed 3-4 times with ethanol and dried in vacuum at 60°C overnight. |
回复此楼» 猜你喜欢
河北省自然科学基金
已经有7人回复
-
揭秘青基评审内幕：几个A才能顺利中标
已经有4人回复
-
投MDPI的三个期刊都被桌拒
已经有5人回复
-
26/27申博自荐
已经有6人回复
-
青B发送上会通知了吗
已经有7人回复
-
博士申请
已经有3人回复
-
某211大学教师把个人教师官方主页改成:我跑了我跑了我跑了!官宣跑路！
已经有4人回复
-
今年审到国自然15份，谈谈感受
已经有28人回复
-
投稿求助，期刊
已经有8人回复
-
献血感触
已经有13人回复
phu_grassman
荣誉版主 (知名作家)
快乐岛、布吉岛岛主
- 翻译EPI: 265
- 应助: 7 (幼儿园)
- 贵宾: 1.392
- 金币: 7538.7
- 散金: 11599
- 红花: 107
- 沙发: 11
- 帖子: 5611
- 在线: 1480.2小时
- 虫号: 1151372
- 注册: 2010-11-20
- 专业: 电化学
- 管辖: English Cafe
【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★
lofed: 金币+10, 翻译EPI+1, ★★★★★最佳答案, 非常感谢！ 2013-12-27 11:28:47
lofed: 金币+10, 翻译EPI+1, ★★★★★最佳答案, 非常感谢！ 2013-12-27 11:28:47
| 实验中所有的试剂均是分析纯。合成和洗涤过程中所用的为去离子水。氧化石墨烯由天然石墨粉末通过改进的Hummer法制得。1 g石墨粉末加入到23 mL冷却的浓硫酸中。（Three temperature of the mixture was maintained below 20°C. 这句没看明白，three是不是the？）混合物的温度保持在20度以下，然后在35度下搅拌30 min，之后缓慢加入46 mL蒸馏水使混合物温度增加到98度，并保持在此温度15 min。最后通过先后加入14o mL蒸馏水、1o mL30% 的双氧水溶液使反应终止。固体产品通过离心分离，并用5%HCl溶液反复洗涤，直至硫酸根粒子不能通过BaCl2被检测到。然后用乙醇洗涤3-4遍，并于60度下过夜真空干燥。 |
» 本帖已获得的红花（最新10朵）
lofed2楼2013-12-26 23:45:43
3楼2013-12-27 11:30:25
10