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Study on the Attractive Electroanalytical Performance of Carbon-Ionic Liquid Paste Electrode

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文献类型：外文期刊

作者： Zhang, Xuzhi ¹ ; Li, Meng ² ; Zhao, Jun ¹ ; Chen, Bijuan ¹ ; Qu, Keming ¹ ;

作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China

2.Dalian Ocean Univ, Sch Life Sci & Technol, Dalian 116023, Peoples R China

关键词： Ionic liquid;Graphene;Carbon paste electrode;Electroanalytical performance;Mechanism of formation

期刊名称：JOURNAL OF THE CHINESE CHEMICAL SOCIETY （影响因子：1.967；五年影响因子：1.639 ）

ISSN： 0009-4536

年卷期： 2013 年 60 卷 4 期

页码：

收录情况： SCI

摘要： Carbon paste electrode made of graphite and ionic liquid n-octylpyridinum hexafluorophosphate (OPFP) displays many attractive electroanalytical abilities towards lots of species, allowing sensitive, low-potential, simple, low-cost, and stable performances. Herein a new hypothesis is proposed to explain the formation of these performances based on the results of electrochemical, scanning electron microscopic and transmission electron microscopic investigations. The mechanical force produces mono- or multi-layered graphene during the grinding process. And the OPFP molecules are prone to combine with the graphene, which cause the avoidance of the agglomeration of the exfoliated flakes. The presence of graphene, which is edge plane characteristic, provides high density of electrochemical reactive sites on the surface of the electrode.

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