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Electrocatalytic performance of Ni modified MnOX/C composites toward oxygen reduction reaction and their application in Zn-air battery
Wu, Qiumei1,2; Jiang, Luhua1; Qi, Luting1; Wang, Erdong1; Sun, Gongquan1
KeywordOxygen Reduction Reaction Manganese Oxide Nickel Hydroxide Activity Zinc-air Battery
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
2014-02-25
DOI10.1016/j.ijhydene.2013.12.076
Volume39Issue:7Pages:3423-3432
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels
WOS KeywordMANGANESE OXIDE NANOPARTICLES ; NITROGEN-DOPED GRAPHENE ; FUEL-CELLS ; PALLADIUM NANOPARTICLES ; ALKALINE-SOLUTION ; CARBON ELECTRODES ; CATALYSTS ; TEMPERATURE ; NANOSTRUCTURES ; MECHANISM
AbstractA series of Ni modified MnOx/C composites were synthesized by introducing NaBH4 to MnO2/C aqueous suspension containing Ni(NO3)(2). The physical properties and the activity of the composites toward the oxygen reduction reaction (ORR) were investigated via transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and the electrochemical techniques. The results show that the higher activity of the composites toward the ORR is correlated with the higher content of Mn0OH species transformed from Mn(II) on the surface of the composite. The main nickel species in the composites is Ni(OH)(2), while Ni(OH)(2) shows little activity toward the ORR. However, introducing Ni(OH)2 with proper amount into the MnOx/C improves the distribution of the active material MnOx, which contributes to a surface with more MnOOH. The optimal composite is of the Ni/Mn atomic ratio of 1:2 and the MnOx loading of 28 wt.%. The maximum power density of the zinc-air battery with the optimized Ni modified MnOx/C as the cathode catalyst reaches up to 122 mW cm(-2), much higher than the one with the MnOx/ C as the air cathode catalyst (89 mW cm(-2)), and slightly higher than those with the Pd/C and Pt/C as the cathode catalysts. Crown Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Language英语
WOS IDWOS:000331917400039
Citation statistics
Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/145436
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
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Wu, Qiumei,Jiang, Luhua,Qi, Luting,et al. Electrocatalytic performance of Ni modified MnOX/C composites toward oxygen reduction reaction and their application in Zn-air battery[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2014,39(7):3423-3432.
APA Wu, Qiumei,Jiang, Luhua,Qi, Luting,Wang, Erdong,&Sun, Gongquan.(2014).Electrocatalytic performance of Ni modified MnOX/C composites toward oxygen reduction reaction and their application in Zn-air battery.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,39(7),3423-3432.
MLA Wu, Qiumei,et al."Electrocatalytic performance of Ni modified MnOX/C composites toward oxygen reduction reaction and their application in Zn-air battery".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 39.7(2014):3423-3432.
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