| 查看: 1072 | 回复: 7 | ||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | ||
爱吃虫得金鱼木虫 (正式写手)
|
[求助]
有关于英文文献中一段话求专业大神指教 已有4人参与
|
|
With increasing temperature, heating rate and weight loss, the amount of the graphitic structure was reduced at the expense of disordered structure.这句话是指温宿升高炭黑石墨化结构减少，无定型结构增多吗？我感觉我糊涂了 |
回复此楼» 猜你喜欢
2019年青年基金涵评意见，大家看看几个A，几个B?
已经有11人回复
-
重要来源：本周末出结果
已经有5人回复
-
FileCode能看出啥？
已经有23人回复
-
应该是93bebmhtak前后十一个字符比较关键
已经有36人回复
-
关于Filecode分析方法
已经有9人回复
-
不应该看fileCode
已经有6人回复
-
好奇怪的filecode
已经有6人回复
-
长年满屏的广告，版主太不责任了。基金也等的急
已经有4人回复
-
filecode
已经有15人回复
-
职称评审，求友友推荐见刊最快的期刊
已经有4人回复
» 本主题相关商家推荐: (我也要在这里推广)
kexuecheng
捐助贵宾 (初入文坛)
- 应助: 2 (幼儿园)
- 金币: 156
- 帖子: 38
- 在线: 28.9小时
- 虫号: 403139
- 注册: 2007-06-15
- 性别: GG
- 专业: 应用高分子化学与物理
6楼2015-07-23 14:53:37
感谢参与，应助指数 +1
|
本帖内容被屏蔽 |
3楼2015-07-18 15:47:41
kexuecheng
捐助贵宾 (初入文坛)
- 应助: 2 (幼儿园)
- 金币: 156
- 帖子: 38
- 在线: 28.9小时
- 虫号: 403139
- 注册: 2007-06-15
- 性别: GG
- 专业: 应用高分子化学与物理
4楼2015-07-18 18:29:43
爱吃虫得金鱼
木虫 (正式写手)
- 应助: 0 (幼儿园)
- 金币: 6062.3
- 散金: 100
- 帖子: 537
- 在线: 69.3小时
- 虫号: 3414121
- 注册: 2014-09-13
- 性别: GG
- 专业: 有色金属冶金
|
Raman spectra (Fig. 4) of studied samples confirm presence of two bands: (i) G band at 1,590 cm-1 and (ii) D band at 1,355 cm-1. G band confirms presence of graphitic structure and D band represents disordered structure which is form due to the breakdown of symmetry for atoms close to the edge of graphite sheet when formerly forbidden transitions became possible [6]. Parameters of Raman spectra such as the position m, the full width at half-maximum FWHM and areas I of the G and D bands are documented in the Table 3. Raman spectra of single-crystal graphite samples show band only at 1,575 cm-1. Increase of temperature and heating rate of pyrolysis leads to reduction of graphitic structure—position of mG shift to higher value and conversely FWHMG shift to lower value. This phenomenon was also observed andreported by Darmstadt et al. [6] who studied Raman spectra of CB p obtained by pyrolysis of STs at the temperature range 420–700 C. Reduction of graphitic structure is also confirmed by growing ratio ID/IG with increasing temperature. On the other hand, higher thermal treatment of CBc cause increase of intensity of graphitic structure [5] and position of mG decrease from about 1,600 cm-1 to around 1,575 cm-1 as the temperature increases from 27 to 2,727 C [5]. Compared to CBc Raman spectra of CBp most approaches to CB c denoted as N375 and N774. Probably these two carbon blacks were used as a filler during STs manufacturing. Linear relation (Fig. 5) was found between the intensities ID and IG and temperature of pyrolysis and weight losses of pyrolysed sample. With increasing temperature ration ID/IG increase and this dependence correlate with weight loss of pyrolysis of STs |
5楼2015-07-18 20:59:12
