Altered thermodynamic and kinetic properties of MgH2 infiltrated in microporous scaffold

被引：190

作者：

Zhao-Karger, Zhirong ^{[1
]}

Hu, Jianjiang ^{[1
]}

Roth, Arne ^{[1
]}

Wang, Di ^{[1
]}

Kuebel, Christian ^{[1
]}

Lohstroh, Wiebke ^{[1
]}

Fichtner, Maximilian ^{[1
]}

机构：

[1] Karlsruhe Inst Technol, Inst Nanotechnol, D-76021 Karlsruhe, Germany

来源：

CHEMICAL COMMUNICATIONS | 2010年 / 46卷 / 44期

关键词：

DIFFERENTIAL THERMAL ANALYSIS; HYDROGEN STORAGE; MAGNESIUM HYDRIDE;

D O I：

10.1039/c0cc03072d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

MgH2 nanoparticles with a size of <3 nm were formed by direct hydrogenation of Bu2Mg inside the pores of a carbon scaffold. The activation energy for the dehydrogenation was lowered by 52 kJ mol(-1) compared to the bulk material, and a significantly reduced reaction enthalpy of 63.8 +/- 0.5 kJ mol(-1) and entropy (117.2 +/- 0.8 J mol(-1)) was found for the nanoconfined system.

引用

页码：8353 / 8355

页数：3

共 23 条

[21] Nanocrystalline magnesium for hydrogen storage [J].