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

Authors

Gui-Ling WANG, School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China;College of Material Science and Chemical Engineering,Harbin Engineering University,Harbin 150001,China;
Jin-Cheng LIU, College of Material Science and Chemical Engineering,Harbin Engineering University,Harbin 150001,China;
Ke-Ning SUN, School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China;
Dian-Xue CAO, College of Material Science and Chemical Engineering,Harbin Engineering University,Harbin 150001,China;

Corresponding Author

Gui-Ling WANG(wangguiling@hrbeu.edu.cn)

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.

Keywords

direct borohydride fuel cell, hydrogen storage alloy, Au modified, electrochemical oxidation

DOI Link

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

Publication Date

2009-11-28

Online Available Date

2009-11-28

Revised Date

2009-11-28

Received Date

2009-11-28

Recommended Citation

Gui-Ling WANG, Jin-Cheng LIU, Ke-Ning SUN, Dian-Xue CAO. Electrocatalytic Activities of Au-MmNi_(3.2)Al_(0.2)Mn_(0.6)Co_(1.00) for Borohydride Oxidation[J]. Journal of Electrochemistry, 2009 , 15(4): 450-453.
DOI: 10.61558/2993-074X.2023
Available at: https://jelectrochem.xmu.edu.cn/journal/vol15/iss4/15

References

[1]Chen Wei(陈卫),Tang Ya-Wen(唐亚文),Lu Tian-Hong(陆天虹).Electrocatalytic performance of carbonsupported Au-Ir catalyst as cathodic catalyst in directformic acid fuel cell[J].Electrochemistry(in Chi-nese),2008,3:235-237.
[2]Wang Gui-Ling(王贵领),Lan Jian(兰剑),Cao Dian-Xue(曹殿学),et al.Recent advance in research ondirect NaBH4/H2O2fuel cells[J].J Chem Industry En-gineering(in Chinese),2008,159(4):805-813.
[3]Atwan M H,Macdonald C L B,Northwood D O,et al.Colloidal Au and Au-alloy catalysts for direct boro-hydride fuel cells:Electrocatalysis and fuel cell per-formance[J].J Power Sources,2006,158:36-44.
[4]Mirkin M V,Yang H,Bard A J.Borohydride oxidationat a gold electrode[J].J Electrochem Soc,1992,139:2212-2217.
[5]Gyenge E L.Electrooxidation of borohydride on plati-num and gold electrodes:implications for direct boro-hydride fuel cells[J].Electrochim Acta,2004,49(6):965-978.
[6]Raman R K,Choudhury NA,Shukla AK.AHigh out-put voltage direct borohydride fuel cell[J].ElectrochemSolid-State Lett,2004,7(12):A488-A491.
[7]Liu B H,Li Z P,Suda S.Electrocatalysts for the anod-ic oxidation of borohydrides[J].Electrochim Acta,2004,49:3097-3105.
[8]Choudhury NA,Raman R K,Sampath S,et al.An al-kaline direct borohydride fuel cell with hydrogen perox-ide as oxidant[J].J Power Sources,2005,143:1-8.
[9]Wang L,Ma C,Mao X.LmNi4.78Mn0.22alloy modifiedwith Si used as anodic materials in borohydride fuel cells[J].J Alloys Compounds,2005,397:313-316.
[10]Yang Z Z,Wang LB,Gao Y F,et al.LaNi4.5Al0.5al-loy doped with Au used as anodic materials in a boro-hydride fuel cell[J].Journal of Power Sources,2008,184:260-264.