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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度金属和金属配合物制备复合材料，（3）研究这些材料的功能及其作用机理，研究含大量不饱和氮的炭和纤维状炭的制备方法，表面上的官能度表明，通过使用（1）聚丙烯腈的选择性脱氢和控制活化，和（2）用硫酸或二氧化硫活化和用氨处理活性炭和活性炭纤维的组合，可以制备这种高含氮官能度的碳并在一定程度上控制含量。特别是，后一种方法是值得注意的，因为它的广泛适用性，无论碳的种类。这些方法可以证明 ...更多信息这些炭具有高稳定性的氮官能团和其它表面改性方法所不能获得的特性，无论预处理与否，它们都表现出很高的烟气脱硝和脱硫能力。这种能力比通常的活性炭大得多，因此需要进一步的发展。关于金属和这些碳的复合材料，发现通过使用非质子溶剂浸渍提供金属的高度分散。以氯仿为溶剂制备的Cu、Fe复合材料具有良好的脱硝性能。贵金属复合材料还有望提供选择性氢化芳烃的能力，并提供更高的灰分耐久性。这种表现已经被研究过了。虽然大环金属配合物与这些碳之间的加速相互作用不幸的是没有完全获得，在它们的催化能力方面取得了一些进展，并且增强相互作用的方法可以提供预期的性能。调查仍在进行中。少