Synthesis and Hydrogen Storage Properties of Be12(OH)12(1,3,5-benzenetribenzoate)4

被引:239
作者
Sumida, Kenji [2 ]
Hill, Matthew R. [1 ,3 ]
Horike, Satoshi [2 ]
Dailly, Anne [4 ]
Long, Jeffrey R. [2 ]
机构
[1] CSIRO, Div Mat Sci & Engn, Clayton, Vic 3169, Australia
[2] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA
[3] Univ Melbourne, Sch Chem, Melbourne, Vic 3010, Australia
[4] Gen Motors Co, Chem & Environm Sci Lab, Warren, MI 48090 USA
基金
澳大利亚研究理事会;
关键词
METAL-ORGANIC FRAMEWORKS; CRYSTAL-STRUCTURE; CARBON-DIOXIDE; ADSORPTION; CO2;
D O I
10.1021/ja9072707
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The first crystalline beryllium-based metal-organic framework has been synthesized and found to exhibit an exceptional surface area useful for hydrogen storage. Reaction of 1,3,5-benzenetribenzoic acid (H3BTB) and beryllium nitrate in a mixture of DMSO, DMF, and water at 130 degrees C for 10 days affords the solvated form of Be-12(OH)(12)(1,3,5-benzenetribenzoate)(4) (1). Its highly porous framework structure consists of unprecedented saddle-shaped [Be-12(OH)(12)](12+) rings connected through tritopic BTB3- ligands to generate a 3,12 net. Compound 1 exhibits a BET surface area of 4030 m(2)/g, the highest value yet reported for any main group metal-organic framework or covalent organic framework. At 77 K, the H-2 adsorption data for I indicate a fully reversible uptake of 1.6 wt % at 1 bar, with an initial isosteric heat of adsorption of -5.5 kJ/mol. At pressures up to 100 bar, the data show the compound to serve as an exceptional hydrogen storage material, reaching a total uptake of 9.2 wt % and 44 g/L at 77 K and of 2.3 wt % and 11 g/L at 298 K. It is expected that reaction conditions similar to those reported here may enable the synthesis of a broad new family of beryllium-based frameworks with extremely high surface areas.
引用
收藏
页码:15120 / +
页数:6
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