SYNTHESIS OF NOVEL NANOCARBONS FROM CARBON PRECURSORS PRERARED BY DEFLUORINATION

由脱氟制备的碳前体合成新型纳米碳

基本信息

批准号：
16550166
负责人：
YAMADA Yoshio
金额：
$ 2.24万
依托单位：
University of Fukui
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

项目摘要

The purpose of this study is to synthesis novel nanocarbons such as nanofibers and nanospheres by use of defluroination of perfluoroorganic compounds with alkali metals. This procedure has an advantage in which the reaction can progress at low temperatures less than 200℃. The as-prepared products(carbon precursors) were heat-treated up to higher temperatures in order to obtain stable carbons from the precursors. As a result we succeeded in synthesis of nanoporous carbons with characteristic morphology and unique porosity by using various kinds of perfluorocompounds. These carbons are consisted basically of amorphous structure, but the treatment at higher temperatures than 2000℃ brought about not only the non-graphitic constituents, but also the graphitic components. In addition, when pentafluorooctane with an aliphatic C-C chain, hexafluorobenzene and octafluorotoluene containing an aromatic ring and also pentafluoropyridine having a nitrogen atom in a ring were defluorinated under vacuum with sodium or potassium, nanoporous carbons and nanofibers were obtained. It was found that they have different mesopores volume and pore size distributions. In order to control the pore size distribution and to obtain nano-composites made up of sp and sp^2 carbons, octafluorotoluene and pentafluorooctane were used as starting reagents. These compounds have nearly same boiling point. The mixture of both components with various ratios was defluorinated and treated as the same manner. As a result it was elucidated that the mixing of both perfluorocompounds is very effective for the control of the pore size distribution. Now we are continuing accumulation of the data on this experiment.

这项研究的目的是通过利用与碱金属的全氟有机化合物的放流化来合成新型纳米碳，例如纳米纤维和纳米球。该过程具有一个优势，在该过程中，反应可以在低温小于200℃的低温下进展。为了从前体获得稳定的碳，将所制备的产品（碳前体）进行热处理至较高的温度。结果，我们通过使用各种全氟化合物成功地合成具有特征形态和独特孔隙率的纳米孔碳。这些碳始终是无定形结构的基础，但是在2000年的温度下处理的处理仅带来了非塑料构成，也带来了图形成分。此外，当带有脂肪族C-C链的五氟辛烷时，六氟苯苯和八氟替醇含有芳香环，并且在环中含有氮原子的芳族环和五氟吡啶胺在环中用钠或钾含量在钠或钾盐下脱氟，nanofors，nanofors，nanofors和Nanofibers。发现它们具有不同的中孔体积和孔径分布。为了控制孔径的分布并获得由SP和SP^2碳组成的纳米复合材料，将Octafluorotoluene和Pentafluorooctane用作起始试剂。这些化合物的沸点几乎相同。两种组件与各种比率的混合物被放流，并将其视为相同的方式。结果阐明了两个全氟化合物的混合对于控制孔径分布非常有效。现在，我们正在继续在该实验上积累数据。

项目成果

期刊论文数量（40）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Structural change of carbon material obtained by defluorination of perfluoronaphthalene at very low temperature and their lithiuminsertion property

全氟萘极低温脱氟碳材料的结构变化及其嵌锂性能

DOI：
发表时间：
2007
期刊：
aterials Science and Engineering B (印刷中)
影响因子：
0
作者：
Osamu Tanaike
通讯作者：
Osamu Tanaike

Low temperature synthesis of carbon materials by defluorinntion of perfluoroorganic compounds

全氟有机化合物脱氟低温合成碳材料

DOI：
发表时间：
2007
期刊：
Edited by the 117th Committee of the Japan Society for the Promotion of Science, Special issue for 60th anniversary titled New Trend of Carbon Materials, Printed by Showa Information Process Co., Ltd.
影响因子：
0
作者：
Osamu Tanaike;Osamu Tanaike;Yoshio Yamada
通讯作者：
Yoshio Yamada

PTFEの脱フッ素化による多孔質炭素の調製と電気二重層キャパシタへの応用

PTFE脱氟制备多孔碳及其在双电层电容器中的应用

DOI：
发表时间：
2004
期刊：
炭素 215
影响因子：
0
作者：
Yasuhiko;Yamamoto;Yoshio Yamada;山田能生
通讯作者：
山田能生

Porous carbons from octafluoronaphthalene by chemical reaction and heat-treatment

通过化学反应和热处理由八氟萘制备多孔碳

DOI：
发表时间：
2005
期刊：
Chemistry Letters 34・11
影响因子：
0
作者：
Osamu Tanaike;Osamu Tanaike;Yoshio Yamada;Yoshio Yamada
通讯作者：
Yoshio Yamada

Synthesis of amorphous nanoflber by defluorination of perfluoroorganic

全氟有机物脱氟合成无定形纳米纤维

DOI：
发表时间：
期刊：
International Conference on Carbon, CARBON2006, Presented in 2006, Aberdeen, UK
影响因子：
0
作者：
Yasuhiko;Yamamoto;Yoshio Yamada;山田能生;Yoshio Yamada;Yoshio Yamada
通讯作者：
Yoshio Yamada