NiCO2S4@graphene as a Bifunctional Electrocatalyst for Oxygen Reduction and Evolution Reactions
Department先进润滑与防护材料研究发展中心
Liu Q(刘乔)1,2; Jin JT(金具涛)1,2; Zhang JY(张俊彦)1; Zhang JY(张俊彦)
The second department固体润滑国家重点实验室
2013
Source PublicationACS Applied Materials & Interfaces
ISSN1944-8244
Volume5Issue:11Pages:5002-5008
AbstractHere, the hybrid of NiCo2S4 nanoparticles grown on graphene in situ is first described as an effective bifunctional nonprecious electrocatalyst for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in the alkaline medium. NiCo2S4@N/S-rGO was synthesized by a one-pot solvothermal strategy using Co(OAc)2, Ni(OAc)2, thiourea, and graphene oxide as precursors and ethylene glycol as the dispersing agent; simultaneously, traces of nitrogen and sulfur were double-doped into the reduced graphene oxide (rGO) in the forms of pyrrolic-N, pyridinic-N, and thiophenic-S, which are often desirable for metal-free ORR catalysts. In comparison with commercial Pt/C catalyst, NiCo2S4@N/S-rGO shows less reduction activity, much better durability, and superior methanol tolerance toward ORR in 0.1 M KOH; it reveals higher activity toward OER in both KOH electrolyte and phosphate buffer at pH 7.0. NiCo2S4@graphene demonstrated excellent overall bicatalytic performance, and importantly, it suggests a novel kind of promising nonprecious bifunctional catalyst in the related renewable energy devices.
KeywordCobalt Sulfide Graphene Oxygen Reduction Oxygen Evolution Nonprecious Electrocatalyst Doping Effect Bifunctional Catalyst Fuel Cell
Subject Area材料科学与物理化学
DOI10.1021/am4007897
Funding Organizationthe National Natural Science Foundation of China (50823008)
Indexed BySCI
If5.900
Language英语
Funding Project纳米润滑研究组
compositor第一作者单位
Citation statistics
Cited Times:628[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.licp.cn/handle/362003/4769
Collection中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心
固体润滑国家重点实验室(LSL)
Corresponding AuthorZhang JY(张俊彦)
Affiliation1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu Q,Jin JT,Zhang JY,et al. NiCO2S4@graphene as a Bifunctional Electrocatalyst for Oxygen Reduction and Evolution Reactions[J]. ACS Applied Materials & Interfaces,2013,5(11):5002-5008.
APA Liu Q,Jin JT,Zhang JY,&张俊彦.(2013).NiCO2S4@graphene as a Bifunctional Electrocatalyst for Oxygen Reduction and Evolution Reactions.ACS Applied Materials & Interfaces,5(11),5002-5008.
MLA Liu Q,et al."NiCO2S4@graphene as a Bifunctional Electrocatalyst for Oxygen Reduction and Evolution Reactions".ACS Applied Materials & Interfaces 5.11(2013):5002-5008.
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