Au-MmNi_(3.2)Al_(0.2)Mn_(0.6)Co_(1.00)电极对NaBH_4电催化氧化

王贵领; 刘进程; 孙克宁; 曹殿学

doi:10.61558/2993-074X.2023

电化学 >

2009 , Vol. 15 >Issue 4: 450 - 453

DOI: https://doi.org/10.61558/2993-074X.2023

研究论文

Au-MmNi_(3.2)Al_(0.2)Mn_(0.6)Co_(1.00)电极对NaBH_4电催化氧化

王贵领 ,
刘进程 ,
孙克宁 ,
曹殿学

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哈尔滨工业大学市政环境工程学院;哈尔滨工程大学材料科学与化学工程学院;

收稿日期: 2009-11-28

修回日期: 2009-11-28

网络出版日期: 2009-11-28

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Electrocatalytic Activities of Au-MmNi_(3.2)Al_(0.2)Mn_(0.6)Co_(1.00) for Borohydride Oxidation

WANG Gui-Ling ,
LIU Jin-Cheng ,
SUN Ke-Ning ,
CAO Dian-Xue

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(1.School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China;2.College of Material Science and Chemical Engineering,Harbin Engineering University,Harbin 150001,China

Received date: 2009-11-28

Revised date: 2009-11-28

Online published: 2009-11-28

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摘要

研究经NaOH处理了的MmNi3.2Al0.2Mn0.6Co1.0,再应用电沉积法制备Au改性的MmNi3.2Al0.2Mn0.6Co1.0催化剂对NaBH4的电催化氧化性能.SEM观察催化剂样品的微观形貌,线性伏安扫描法测定其电催化氧化性能,发现Au-MmNi3.2Al0.2Mn0.6Co1.0电极电催化氧化NaBH4电流密度为60 mA.cm-2,比在MmNi3.2Al0.2Mn0.6Co1.0电极的增加3.5倍.若对该电极在电解质中预浸泡10 h,则氧化电流密度可达到184 mA.cm-2.

关键词： 直接NaBH4燃料电池; 储氢合金; 金改性; 电氧化

本文引用格式

王贵领 , 刘进程 , 孙克宁 , 曹殿学 . Au-MmNi_(3.2)Al_(0.2)Mn_(0.6)Co_(1.00)电极对NaBH_4电催化氧化[J]. 电化学, 2009 , 15(4) : 450 -453 . DOI: 10.61558/2993-074X.2023

Abstract

In this work,the electrocatalytic activities of MmNi3.2Al0.2Mn0.6Co1.0,NaOH treated MmNi3.2Al0.2Mn0.6Co1.0 and Au-MmNi3.2Al0.2Mn0.6Co1.0 obtained after NaOH treatment(Mm: misch metal) for NaBH4 oxidation were reported.The electrodes were prepared by electrodeposition,their morphologies were analysized by SEM,their electrocatalytic properties were studied by the linear sweeping test.It was found that the oxidation current density of the Au-MmNi3.2Al0.2Mn0.6Co1.0 was 60 mA·cm-2,it was 3.5 times higher than that at the MmNi3.2Al0.2Mn0.6Co1.0 electrode.In addition,the oxidation current density at the Au-MmNi3.2Al0.2Mn0.6Co1.0 electrode immersed in the electrolyte solution for 10 hours was 184 mA·cm-2.

Key words： direct borohydride fuel cell; hydrogen storage alloy; Au modified; electrochemical oxidation

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