Preparation of spherical clusters of metal oxide nanorods and their hydrogen storage behavior

被引：13

作者：

Guo, Z. P. ^{[1
]}

Yuan, L. ^{[1
]}

Konstantinov, K. ^{[1
]}

Huang, Z. G. ^{[1
]}

Liu, H. K. ^{[1
]}

机构：

[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2522, Australia

来源：

MATERIALS LETTERS | 2006年 / 60卷 / 29-30期

基金：

澳大利亚研究理事会;

关键词：

spherical cluster; doped NiO nanoshafts; hydrogen storage;

D O I：

10.1016/j.matlet.2006.03.135

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spherical clusters of transition-metal oxide nanorods were prepared by using a simple, rapid and easily scaled up method, i.e. chemical precipitation followed by thermal decomposition. The microstructural characteristics of spherical clusters of nanorods were examined by scanning electron microscopy (SEM). It was found that the nanorods were displayed on the surfaces of the spherical particles that had grown from the center of the spherical particles to their surface. It is worth pointing out that the spherical clusters of nanocrystals could serve as effective confined templates for spherical nanostructures. Hydrogen adsorption/desorption experiments were carried out at room temperature. A hydrogen storage capacity of 0.71% was achieved under a pressure of 3.05 MPa for spherical clusters of doped NiO nanorods with a surface area of 113.39 m(2)/g, and about 66.8% of the stored hydrogen could be released under ambient pressure. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：3891 / 3894

页数：4

共 16 条

[1] Novel hydrogen storage properties of MoS2 nanotubes [J].

Chen, J ;

Li, SL ;

Tao, ZL .

JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 356 :413-417

[2]

CHEN J, 2003, INT J NANOSCI, V1, P295

[3] Hydrogen adsorption of open-tipped insufficiently graphitized multiwalled carbon nanotubes [J].

Gao, H ;

Wu, XB ;

Li, JT ;

Wu, GT ;

Lin, JY ;

Wu, K ;

Xu, DS .

APPLIED PHYSICS LETTERS, 2003, 83 (16) :3389-3391

[4] Synthesis and size control of NiO nanoparticles by water-in-oil microemulsion [J].

Han, DY ;

Yang, HY ;

Shen, CB ;

Zhou, X ;

Wang, FH .

POWDER TECHNOLOGY, 2004, 147 (1-3) :113-116

[5] Hydrogen storage capacity of commercially available carbon materials at room temperature [J].

Kajiura, H ;

Tsutsui, S ;

Kadono, K ;

Kakuta, M ;

Ata, M ;

Murakami, Y .

APPLIED PHYSICS LETTERS, 2003, 82 (07) :1105-1107

[6] Optical properties and ultrafast dynamics of metallic nanocrystals [J].

Link, S ;

Ei-Sayed, MA .

ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 2003, 54 :331-366

[7] Synthesis of nanosized nickel hydroxide by solid-state reaction at room temperature [J].

Liu, XH ;

Yu, L .

MATERIALS LETTERS, 2004, 58 (7-8) :1327-1330

[8] Hydrogen storage in graphite nanofibers: Effect of synthesis catalyst and pretreatment conditions [J].

Lueking, AD ;

Yang, RT ;

Rodriguez, NM ;

Baker, RTK .

LANGMUIR, 2004, 20 (03) :714-721

[9] Hydrogen adsorption in mesoporous carbons [J].

Pang, JB ;

Hampsey, JE ;

Wu, ZW ;

Hu, QY ;

Lu, YF .

APPLIED PHYSICS LETTERS, 2004, 85 (21) :4887-4889

[10] Improving optical and charge separation properties of nanocrystalline TiO2 by surface modification with vitamin C [J].

Rajh, T ;

Nedeljkovic, JM ;

Chen, LX ;

Poluektov, O ;

Thurnauer, MC .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (18) :3515-3519

← 1 2 →