Electrochemical hydrogen storage properties of ball-milled NdMg12 alloy with Ni powders

被引：34

作者：

Wang, Yi ^{[1
]}

Qiao, Shizhang ^{[2
,3
]}

Wang, Xin ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Chem & Biomed Engn, Div Chem & Biomol Engn, Singapore 637459, Singapore

[2] Univ Queensland, Australian Inst Bioengn & Nanotechnol, Brisbane, Qld 4072, Australia

[3] Univ Queensland, Sch Engn, ARC Ctr Excellence Funct Nanomat, Brisbane, Qld 4072, Australia

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2008年 / 33卷 / 03期

关键词：

rare earth-Mg alloys; electrochemical hydrogen storage; reaction resistance; cycle performance;

D O I：

10.1016/j.ijhydene.2007.11.020

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 electrochemical characteristics of the ball-milled NdMg12 alloys with Ni powders were investigated. The first discharge capacity of the ball-milled sample was improved from 770 to 1200mAh/g when the Ni content in the alloy was increased from 150 to 200wt%. Furthermore, the first discharge capacity of the ball-milled NdMg12 + 200 wt% Ni composite was very close to that of the ball-milled PrMg12 + 200 wt% Ni composite. However, the high rate dischargeability of the former was not as good as that of the latter. Further analysis by electrochemical impedance spectroscopy (EIS) technique reveals a larger reaction resistance in the ball-milled NdMg12+200wt% Ni composite, probably due to the formation of Nd oxide or Nd(OH)3 film on the surface of alloy. Larger reaction resistance resulted in the lower high rate dischargeability of this sample. In addition, the ball-milled NdMg12 + 200 wt% Ni composite exhibited better cycle performance due to the existence of the corrosion resistant Nd oxide or Nd(OH)(3) film. (C) 2007 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：1023 / 1027

页数：5

共 23 条

[1] Structural and electrochemical properties of amorphous rich MgxNi100-x nanomaterial obtained by mechanical alloying [J].

Abdellaoui, A ;

Mokbli, S ;

Cuevas, F ;

Latroche, A ;

Percheron-Guégan, A ;

Zarrouk, H .

JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 356 :557-561

[2] CATIONIC-FILM-FORMING INHIBITORS FOR THE PROTECTION OF THE AA-7075 ALUMINUM-ALLOY AGAINST CORROSION IN AQUEOUS CHLORIDE SOLUTION [J].

ARNOTT, DR ;

HINTON, BRW ;

RYAN, NE .

CORROSION, 1989, 45 (01) :12-18

[3] Synthesis and characterization of nanocrystalline magnesium-based hydrogen storage alloy electrode materials [J].

Cui, N ;

He, P ;

Luo, JL .

ELECTROCHIMICA ACTA, 1999, 44 (20) :3549-3558

[4] Electrochemical and x-ray photoelectron spectroscopy characterization of surface films on MmNi(3.5)Al(0.8)Co(0.7) [J].

Fiorino, ME ;

Opila, RL ;

Konstadinidas, K ;

Fang, WC .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (08) :2422-2428

[5] Electrochemical hydrogen storage of nanocrystalline La2Mg17 alloy ballmilled with Ni powders [J].

Gao, XP ;

Lu, ZW ;

Wang, Y ;

Wu, F ;

Song, DY ;

Shen, PW .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2004, 7 (05) :A102-A104

[6] Preparation and electrochemical hydrogen storage of the nanocrystalline LaMg12 alloy with Ni powders [J].

Gao, XP ;

Wang, Y ;

Lu, ZW ;

Hu, WK ;

Wu, F ;

Song, DY ;

Shen, PW .

CHEMISTRY OF MATERIALS, 2004, 16 (13) :2515-2517

[7] Electrochemical hydrogen storage properties of nonstoichiometric amorphous MgNi1+x-carbon composites (x=0.05-0.3) [J].

Guo, Z. P. ;

Huang, Z. G. ;

Konstantinov, K. ;

Liu, H. K. ;

Dou, S. X. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2006, 31 (14) :2032-2039

[8] Hydriding and electrochemical characteristics of a homogeneous amorphous Mg2Ni-Ni composite [J].

Iwakura, C ;

Inoue, H ;

Zhang, SG ;

Nohara, S .

JOURNAL OF ALLOYS AND COMPOUNDS, 1998, 270 (1-2) :142-144

[9] Nanocrystalline titanium-type metal hydride electrodes prepared by mechanical alloying [J].

Jurczyk, M ;

Jankowska, E ;

Nowak, M ;

Jakubowicz, J .

JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 336 (1-2) :265-269

[10]

Kuriyama N, 1998, ELECTROCHEM SOLID ST, V1, P37, DOI 10.1149/1.1390627

← 1 2 3 →