【摘 要】
:
Covalent organic frameworks (COFs) have been at the forefront of porous-material research in recent years.With predictable structural compositions and controlla
【机 构】
:
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,Departement of Chemistry, Jili
论文部分内容阅读
Covalent organic frameworks (COFs) have been at the forefront of porous-material research in recent years.With predictable structural compositions and controllable functionalities,the structures and properties of COFs could be controlled to achieve targeted materials.On the other hand,the predesigned structure of COFs allows fruitful postsynthetic modifications to introduce new properties and functions.In this review,the postsynthetic functionalizations of COFs are discussed and their impacts towards structural qualities and performances are comparatively elaborated on.The functionalization involves the formation of specific interactions (covalent or coordination/ionic bonds) and chemical reactions (oxidation/reduction reaction) with pendant groups,skeleton and reactive linkages of COFs.The chemical stability and performance of COFs including catalytic activity,storage,sorption and opto-electronic properties might be enhanced by specific postsynthetic functionalization.The generality of these strategies in terms of chemical reactions and the range of suitable COFs places them as a pivotal role for the development of COF-based smart materials.
其他文献
为提高玉米产量,1986~1989年,进行了稀土对玉米的肥效及施用技术的研究。一、试验设计与处理1.稀土肥效与施用方法试验(1)对照(不施稀土);(2)每公斤种子拌2克稀土;(3)5/10000
小麦是临颍县主要优势作物,小麦生产的状况,对全县粮食生产举足轻重。河南省农科院小麦所品种利用研究室于1986年秋开始在临颍县开展科学用种示范县的科技开发工作。帮助引
1989年在省甘科所1.4亩地上进行试验,品种为杂交玉米“郧单一号”。每亩5000株,宽行80cm,窄行40cm,塘距43cm,每塘2株。施“健壮素”的亩产1148斤,比对照(不施药)亩产892.9斤
Lattice thermal conductivity (κL) is one of the most fundamental properties of solids.The acoustic-elastic-wave assumption,proposed by Debye (Debye P.Ann Phys
Framework flexibility is one of the most important characteristics of metal-organic frameworks (MOFs),which is not only interesting,but also useful for a variet
南丹县地处桂西北高寒山区,杂交中稻大面积制种,平均亩产150公斤以上,最高达300公斤,经验如下: 1.趋利避害、合理安排播期高寒山区杂交水稻制种的制约因素较多,特别受低温(
农业是国民经济的基础,近年来随着我国农业的发展,农业上施肥量呈迅猛增长态势,过量施肥或富裕施肥造成肥料利用率低、肥料残留以及肥料流失,最终致使水体富营养化。巢湖作为
我省常年种植小麦3000多万亩,其中,盆西平原和盆中浅丘漕坝地、低台位旱地约1000万亩,是我省小麦高产区。本区土层较厚,肥力较高,生产条件好,灌溉面积大,近年亩产250—300公
The ocean is a complex and mysterious system that atracts scientists around the world to unravel its secrets.Dake Chen,a distinguished physical oceanographer an
Croplands are the single largest anthropogenic source of nitrous oxide (N2O) globally,yet their estimates remain difficult to verify when using Tier 1 and 3 met