Hydrogen Storage in Double Clathrates with tert-Butylamine

被引：59

作者：

Prasad, Pinnelli S. R. ^{[1
,2
]}

Sugahara, Takeshi ^{[1
,3
]}

Sum, Amadeu K. ^{[1
]}

Sloan, E. Dendy ^{[1
]}

Koh, Carolyn A. ^{[1
]}

机构：

[1] Colorado Sch Mines, Dept Chem Engn, Ctr Hydrate Res, Golden, CO 80401 USA

[2] Natl Geophys Res Inst, Council Sci & Ind Res, Gas Hydrates Div, Hyderabad 500606, Andhra Pradesh, India

[3] Osaka Univ, Grad Sch Engn Sci, Div Chem Engn, Osaka 5608531, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2009年 / 113卷 / 24期

基金：

美国国家科学基金会;

关键词：

HYDRATE FORMATION; TRENDS;

D O I：

10.1021/jp9029997

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The first proof-of-concept of the formation of a double tert-butylamine (t-BuNH2) + hydrogen (H-2) clathrate hydrate has been demonstrated. Binary clathrate hydrates with different molar concentrations of the large guest t-BuNH2 (0.98-9.31 mol%) were synthesized at 13.8 MPa and 250 K, and characterized by powder X-ray diffraction and Raman microscopy. A structural transformation from sVI to sII of t-BuNH2 hydrate was clearly observed under hydrogen pressures. Raman spectroscopic data suggested that the hydrogen molecules occupied the small cages and had similar occupancy to. hydrogen in the double tetrahydrofuran (THF) + H-2 clathrate hydrate. The hydrogen storage capacity in this system was similar to 0.7 H-2 wt% at the molar concentration of t-BuNH2 close to the sII stoichiometry.

引用

页码：6540 / 6543

页数：4

共 26 条

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