日韩av大片在线观看欧美成人不卡|午夜先锋看片|中国女人18毛片水多|免费xx高潮喷水|国产大片美女av|丰满老熟妇好大bbbbbbbbbbb|人妻上司四区|japanese人妻少妇乱中文|少妇做爰喷水高潮受不了|美女人妻被颜射的视频,亚洲国产精品久久艾草一,俄罗斯6一一11萝裸体自慰,午夜三级理论在线观看无码

您好, 歡迎來到化工儀器網(wǎng)

| 注冊| 產(chǎn)品展廳| 收藏該商鋪

400-630-2202

news

首頁   >>   公司動態(tài)   >>   每周分享

麥克默瑞提克(上海)儀器...

立即詢價

您提交后,,專屬客服將第一時間為您服務(wù)

每周分享

閱讀:1088      發(fā)布時間:2014-7-1
分享:

今天給大家分享的是2014年1月份《Journal of the American Chemical Society》上發(fā)表的一篇名為:Sidewall Chlorination of Carbon Nanotubes by Iodine Trichloride,。

文章摘要如下:

The halogenation of carbon nanotubes is of great interest, as it allows the modification of the tube properties or it can serve as primary functionalization for a subsequent covalent fixing. Large degrees of fluorination can be reached although chlorine fixing is preferred, if halogenation is used as primary functionalization, as it is a better leaving group. Here, we report an extensive chlorination of multiwalled carbon nanotubes (MWCNTs) by I2Cl6. The reaction has been studied in acetic acid (AC) and in carbon tetrachloride (TC). The influence of the solvent is critical, as the functionalization is not relevant when the reaction is carried out in AC, while it reaches up to 13 atom % when the solvent is TC. Moreover, chlorine functionalization occurs in defects and borders of the tubes when the solvent is AC, while chlorine is largely fixed on the tube walls when TC is the reaction solvent. These different results are due to iodine trichloride coming out in different chemical species depending on the solvent. The correlation of the TPD and XPS spectra has allowed assignment of the fixed chlorine atoms to five chemical environments. None of the samples show intercalation of chlorine as deduced from X-ray diffraction data.

該文章中材料表征采用的是美國麥克儀器ASAP 2020,,使用該儀器獲得材料氮氣吸附脫附等溫線。

詳情可參考下面鏈接:

http://pubs.acs.org/doi/abs/10.1021/jp411935g

會員登錄

請輸入賬號

請輸入密碼

=

請輸驗證碼

收藏該商鋪

標(biāo)簽:
保存成功

(空格分隔,最多3個,單個標(biāo)簽最多10個字符)

常用:

提示

您的留言已提交成功,!我們將在第一時間回復(fù)您~
在線留言