Effect of surface treatment with boiling alkaline solution on electrochemical properties of the ZrNi alloy electrode

被引：17

作者：

Matsuyama, Akihiro ^{[1
,2
]}

Mizutani, Hironori ^{[1
]}

Kozuka, Takumi ^{[1
]}

Inoue, Hiroshi ^{[2
]}

机构：

[1] Aichi Steel Corp, Adv & High Funct Prod Dev Div, Tokai, Aichi 4768666, Japan

[2] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Sakai, Osaka 5998531, Japan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2016年 / 41卷 / 23期

关键词：

Nickel-metal hydride battery; Hydrogen storage alloy; ZrNi; Surface treatment; Boiling alkaline treatment; HYDROGEN STORAGE ALLOYS; ZR0.9TI0.1NI1.1CO0.1MN0.6V0.2; ALLOY; NI; SYSTEM; NICKEL; CO; CU; TI;

D O I：

10.1016/j.ijhydene.2016.01.033

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：

Electrochemical properties of the ZrNi alloy electrode with the boiling alkaline treatment were investigated. The boiling alkaline treatment was performed by immersing ZrNi powder or electrode in a boiling 6 M KOH aqueous solution for 4 h. During the boiling alkaline treatment, the bulk structure of the ZrNi powder, the B33-type (CrB) structure, remained, whereas the outer ZrO2 native surface was replaced by Ni(OH)(2). The initial discharge capacity at 10 mA g(-1) and 333 K for the ZrNi alloy electrode was increased from 18 to 320 mAh g(-1) by the boiling alkaline treatment. However, cycle performance got worse, because the ZrNi alloy particles were pulverized for the charge-discharge cycles. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：9908 / 9913

页数：6

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