来自甲烯衍生物的金属有机框架含有纳米,具有高甲吸收率
Shengqian Ma1, Daofeng Sun, Jason M Simmons
1Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio, 45056, USA.
Journal of the American Chemical Society
|January 1, 2008
概括
一种新的金属有机框架,PCN-14,显示出异常的甲储存能力. 这种材料远远超过了能源部的目标,为高效的天然气储存提供了一个有希望的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 化学 化学 化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 金属有机框架 (MOF) 是具有可调节结构的先进多孔材料.
- 开发高效的气体储存解决方案对于能源应用至关重要.
- 微孔材料为气体吸附提供了较大的表面积.
研究的目的:
- 为了合成和描述一个新的微孔金属有机框架,PCN-14.
- 为了评估PCN-14的气体储存性能,特别是甲.
- 评估PCN-14在天然气储存应用中的潜力.
主要方法:
- 使用H4基联体的金属有机框架PCN-14的溶热合成.
- 进行X射线单晶分析,以确定晶体结构和孔隙特性.
- 气体吸附研究 (N2在77K,CH4在290K) 测量表面积,孔隙体积和吸附能力.
主要成果:
- PCN-14具有适合储存气体的纳米子.
- 吸附揭示了Langmuir的表面积为2176 m2/g,孔径为0.87 cm3/g.
- 在290K和35bar的甲吸附率显示绝对容量为230v/v,超过了能源部的28%的目标.
结论:
- PCN-14 是一种高效的甲储存材料.
- MOF的结构和特性使其适合用于高容量的气体储存.
- PCN-14为先进的天然气储存技术提供了一个有前途的候选人.
相关概念视频
Properties of Organometallic Compounds
Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
Aromatic Hydrocarbon Cations: Structural Overview
Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
Removing one hydrogen from the intervening CH2 group with both...
Removing one hydrogen from the intervening CH2 group with both...
Aromatic Hydrocarbon Anions: Structural Overview
Neutral hydrocarbons like cyclopentadiene with an odd number of carbon atoms and one intervening CH2 group in the ring are not aromatic. Cyclopentadiene with 4 π electrons does not satisfy the 4n + 2 π electron rule. Additionally, the intervening CH2 group is sp3 hybridized and lacks a vacant p orbital, thereby interrupting the overlap of p orbitals in a continuous manner and preventing the delocalization of π electrons throughout the ring.
Due to the absence of continuous overlap of p...
Due to the absence of continuous overlap of p...


