Hydrogen Sorption in Li12C60

被引：51

作者：

Mauron, Philippe ^{[1
]}

Gaboardi, Mattia ^{[3
]}

Remhof, Arndt ^{[1
]}

Bliersbach, Andreas ^{[1
]}

Sheptyakov, Denis ^{[2
]}

Aramini, Matteo ^{[3
]}

Vlahopoulou, Gina ^{[3
]}

Giglio, Fabio ^{[3
]}

Pontiroli, Daniele ^{[3
]}

Ricco, Mauro ^{[3
]}

Zuettelt, Andreas ^{[1
]}

机构：

[1] EMPA Swiss Fed Labs Mat Sci & Technol, Div Hydrogen & Energy, CH-8600 Dubendorf, Switzerland

[2] Paul Scherrer Inst, Neutron Scattering Lab, CH-5232 Villigen, Switzerland

[3] Univ Parma, Dipartimento Fis & Sci Terra, I-43124 Parma, Italy

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2013年 / 117卷 / 44期

基金：

瑞士国家科学基金会;

关键词：

FULLERIDE; CLUSTERS; C60D36; C-60; LI;

D O I：

10.1021/jp408652t

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 lithium-intercalated fulleride Li12C60 was investigated in view of a lightweight hydrogen storage material due to the low molecular weight of its constituents. Deuterium (D-2) absorption in Li12C60 shows an uptake of up to 9.5 mass % D-2 (equivalent to similar to 5 mass % H-2 for the same stoichiometry). Under a pressure of 190 bar the onset of absorption was observed at a temperature below 100 degrees C, which is 200 degrees C lower than that for pure C-60. Deuterium desorption was investigated by in-situ neutron powder diffraction, and at a pressure of 1 bar desorption was observed above 300 degrees C. The ab/desorption is accompanied by a partial de/reintercalation of lithium, observed by the appearance and disappearance of LiD reflections after absorption and during desorption, respectively. A minor part of deuterium is present in ionic form in LiD, and the major part is covalently bound in a Li-depleted compound Li12-xC60D36+y.

引用

页码：22598 / 22602

页数：5

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