Fullerol-graphene nanobuds: Novel water dispersible and highly conductive nanocarbon for electrochemical sensing

被引：8

作者：

Bourlinos, Athanasios B. ^{[1
,4
]}

Georgakilas, Vasilios ^{[2
]}

Mouselimis, Vasilios ^{[1
]}

Kouloumpis, Antonios ^{[3
]}

Mouzourakis, Eleftherios ^{[1
]}

Koutsioukis, Apostolos ^{[2
]}

Antoniou, Myrsini-Kyriaki ^{[3
]}

Gournis, Dimitrios ^{[3
]}

Karakassides, Michael A. ^{[3
]}

Deligiannakis, Yiannis ^{[1
]}

Urbanova, Veronika ^{[4
]}

Cepe, Klara ^{[4
]}

Bakandritsos, Aristides ^{[4
]}

Zboril, Radek ^{[4
]}

机构：

[1] Univ Ioannina, Phys Dept, GR-45110 Ioannina, Greece

[2] Univ Patras, Dept Mat Sci, Rion 26504, Greece

[3] Univ Ioannina, Dept Mat Sci & Engn, GR-45110 Ioannina, Greece

[4] Palacky Univ Olomouc, Fac Sci, Reg Ctr Adv Technol & Mat, Dept Phys Chem, Slechtitelu 27, Olomouc 78371, Czech Republic

来源：

APPLIED MATERIALS TODAY | 2017年 / 9卷

关键词：

Graphene nanobud; Fullerol; Hybrid conductive; Waterborne; Electrochemical sensing; LAYER GRAPHENE; CARBON DOTS; GRAPHITE; HYDROQUINONE; EXFOLIATION; CATECHOL; FUNCTIONALIZATION; NANOTUBES; COMPOSITE; COVALENT;

D O I：

10.1016/j.apmt.2017.05.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The covalent functionalization of graphene enabling to overcome its hydrophobicity and still keeping a high conductivity is a challenging task, particularly for advanced biosensing applications. We present a facile strategy towards water dispersible nanocarbon with excellent conductive and sensing properties. Graphene-fullerol (GFL) covalent hybrid is prepared by impregnation of chemically exfoliated graphene sheets with fullerol clusters followed by thermal treatment. The partial dehydroxylation of fullerol during heating is necessary for exposing the fullerene skeleton to graphene and promoting their covalent bonding. The remaining hydroxyl and ionic groups equip the final product with good dispersibility in water (0.04 mg mL(-1)). Simultaneously, the GFL hybrid retains a high electrical conductivity of 0.8 x 10(5) S m(-1), which is comparable to that of unmodified graphene. The conductive and hydroxyl-bearing derivative was successfully applied for electrochemical sensing of dopamine, hydroquinone (HQ), and catechol (C) using cyclic voltammetry. GFL modified electrodes exhibited simultaneous HQ and C detection at lower potentials compared to other nanosensors. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：71 / 76

页数：6

共 43 条

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