| 查看: 566 | 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. |
» 猜你喜欢
依托企业入选了国家启明计划青年人才。有无高校可以引进的。
已经有13人回复
AI 太可怕了,写基金时,提出想法,直接生成的文字比自己想得深远,还有科学性
已经有11人回复
天津大学招2026.09的博士生,欢迎大家推荐交流(博导是本人)
已经有11人回复
表哥与省会女结婚,父母去帮带孩子被省会女气回家生重病了
已经有9人回复
同年申请2项不同项目,第1个项目里不写第2个项目的信息,可以吗
已经有10人回复
依托企业入选了国家启明计划青年人才。有无高校可以引进的。
已经有11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。 |
2楼2013-12-26 23:45:43
3楼2013-12-27 11:30:25













回复此楼
lofed