的合成和储存特性 Be () 12 () 12 () 12 () 1 () 3 () 5 () 乙) 4 () 4 () 的合成和储存特性
Kenji Sumida1, Matthew R Hill, Satoshi Horike
1Department of Chemistry, University of California, Berkeley, California 94720-1460, USA.
Journal of the American Chemical Society
|October 6, 2009
概括
研究人员合成了第一个基于的金属有机框架,这是一种具有特殊表面积的高度多孔材料. 这种新的框架表明了高效的储存应用的巨大潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 无机化学 无机化学
- 纳米技术 纳米技术
背景情况:
- 金属有机框架 (MOF) 是具有可调节的多孔结构的晶体材料.
- 高表面积的MOF对于气体储存和分离应用至关重要.
- 此前没有报告基于的MOF.
研究的目的:
- 为了合成第一个基于的晶体金属有机框架.
- 描述其结构性质和表面积.
- 评估其用于储存的潜力.
主要方法:
- 含有酸和1,3,5-二酸 (H(3) BTB) 的热水合成.
- 使用X射线衍射和气体吸附测量 (BET表面积) 进行表征.
- (H(2)) 吸附等温体在77K和298K时被测量.
主要成果:
- 成功合成了一种基于的新型MOF,Be{12}{OH}{12}{BTB}{4} (1).
- 该MOF表现出前所未有的形[Be(12)(OH)(12)](12+) 环结构,形成3,12净.
- 实现了4030m(2) / g的BET表面积记录,这是主要组或共价有机框架中最高的.
- 证明了出色的储容量:在1 bar/77 K时为1.6 wt %,在100 bar/77 K时为9.2 wt %,在298 K时为2.3 wt %.
结论:
- 首个基于的MOF已经合成,显示出异常多孔性.
- 这种材料显示出作为高容量储介质的重大前景.
- 合成策略可能为一类新的高表面积里框架铺平道路.
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