Preparation and Functions of Composits of Metal and Carbon which Contains unsaturated nitrogen-functionalities on its Surface.

表面含不饱和氮官能团的金属与碳复合物的制备及其功能。

基本信息

批准号：
61470082
负责人：
MOCHIDA Isao
金额：
$ 3.78万
依托单位：
Kyushu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1986
资助国家：
日本
起止时间：
1986 至 1988
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-61470082/
关键词：
Unsaturated nitrogen-functionalities Carbon Carbon-metal composites 触媒能複合材触媒機能

项目摘要

Objectives of this research are (1)preparation of carbons which contain large amounts of unsaturated nitrogen-functionalities on their surface, (2)preparation of composites by dispersing highly metals and metal-complexes on the carbon surface, and (3)investigation of functions of these materials and of mechanisms in such functions.Investigation of preparation methods for carbons and fibrous carbons which contain large amounts of unsaturated nitrogen-functionalities on the surface revealed that it is possible to prepare such highly nitrogen-functionality containing carbons and to control the contents to some extent by using (1)selective dehydrogenation of polyacrilonitrile and controling the activation, and (2)combination of activation with sulfuric acid or sulfur dioxide and treatment with ammonia against active carbons and active carbon fibers. Especially, the latter method is of value to note because of its wide applicability regardless of the kind of carbons. These methods can provi … More de highly stable nitrogen-functionalities and some characteristics which can not be obtained by other methods for the surface modification.These carbons were found to exhibit remarkably high abilitles for de-NOx and de-SOx of flue gas with or without proper pretreatment. Such abilities are much larger than those of usual active carbons, so that further developments should be required.With respect to composites of metal and these carbons, impregnation by using aprotic solvents was found to provide high dispersion of metals. Cu amd Fe composites which were prepared by using chloroform as a solvent can be expected to exhibit high abilities for de-NOx. Noble metals composites are also expected to provide abilities for selective hydrogenation of aromatic hydrocarbons and provide higher durability for ash. Such performances have been imvestigated. Although the expedted interaction between macrocyclic metal complexes and these carbons unfortunately were not obtained completely, some developments in their catalytic abilities were obtained and enhancing methods for the interaction can provide expected performances. The investigation has been in progress. Less

本研究的目的是（1）制备表面含有大量不饱和氮官能团的碳，（2）通过在碳表面分散高金属和金属络合物来制备复合材料，以及（3）功能研究对表面含有大量不饱和氮官能团的碳和纤维碳的制备方法的研究表明，可以制备如此高的含量。采用（1）聚丙烯腈选择性脱氢并控制活化，（2）硫酸或二氧化硫活化与氨处理活性炭和活性炭相结合的方法，在一定程度上控制其含量。尤其是，后一种方法值得注意，因为无论碳的种类如何，这些方法都可以提供高度稳定的氮官能团和纤维。发现这些碳在经过或未经适当预处理的情况下对烟气脱硝和脱硫具有显着的高能力，这种能力比通常的碳要大得多。对于金属和这些碳的复合材料，发现使用非质子溶剂浸渍可提供使用氯仿制备的金属Cu和Fe复合材料的高分散性。作为溶剂，贵金属复合材料也有望提供芳香烃的选择性加氢能力，并为灰分提供更高的耐久性，尽管大环金属之间的相互作用加速。遗憾的是，复合物和这些碳尚未完全获得，但其催化能力已取得一些进展，并且增强相互作用的方法可以提供预期的性能。