Synergetic Effect of NbH@h-BN on Dehydrogenation of LiBH4

被引：3

作者：

Tu Guoping ^{[1
,2
]}

He Jianling ^{[2
]}

Xiao Xuezhang ^{[1
]}

Chen Lixin ^{[1
]}

Ren Qianjiang ^{[2
]}

Du Xiyong ^{[2
]}

Luo Minger ^{[2
]}

机构：

[1] Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China

[2] Shaoxing Testing Inst Qual Tech Supervis, Shaoxing 312071, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2016年 / 37卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Hydrogen storage material; LiBH4; Synergetic effect; HYDROGEN STORAGE PROPERTIES; MECHANISM; KINETICS;

D O I：

10.7503/cjcu20160468

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

NbH@h-BN was prepared by mechanically milling h-BN, NbCl5 and LiH, and the samples were detected by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy(TEM) and energy dispersive spectrometry(EDS). The enhancement of NbH@h-.BN on the dehydrogenation of LiBH4 and its mechanism were investigated. The results showed that the onset dehydroge. nation temperature and the apparent activation energy(Ea) of LiBH4 were reduced to 380 degrees C and 142. 31 kJ/mol respectively after the addition of NbH@h-BN, and the dehydrogenation kinetics of LiBH4 was improved significantly. These remarkable results are largely attributed to the nano NbH particles which were dispersed on the surface of h-BN stably.

引用

页码：1757 / 1762

页数：6

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