A green and scalable dry synthesis of NiCo2O4/graphene nanohybrids for high-performance supercapacitor and enzymeless glucose biosensor applications

被引：89

作者：

Ko, Tae-Hoon ^{[1
]}

Radhakrishnan, Sivaprakasam ^{[2
]}

Seo, Min-Kang ^{[3
]}

Khil, Myung-Seob ^{[1
]}

Kim, Hak-Yong ^{[1
,4
]}

Kim, Byoung-Suhk ^{[1
,4
]}

机构：

[1] Chonbuk Natl Univ, Dept Organ Mat & Fiber Engn, 567 Baekje Daero, Jeonju Si 54896, Jeollabuk Do, South Korea

[2] CSIR Cent Electrochem Res Inst, Electrod & Electrocatalysis Div, Karaikudie 63006, Tamil Nadu, India

[3] Korea Inst Carbon Convergence Technol, Jeonju 54852, South Korea

[4] Chonbuk Natl Univ, Dept BIN Convergence Technol, 567 Baekje Daero, Jeonju Si 54896, Jeollabuk Do, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 696卷

基金：

新加坡国家研究基金会;

关键词：

Nickel cobaltite; Graphene nanosheet; Electrode; Supercapacitor; Glucose biosensor; LAYERED DOUBLE HYDROXIDES; ELECTRODE MATERIALS; LITHIUM-ION; GRAPHENE; SENSOR; ARRAYS; NANOTUBES; COMPOSITE; HYBRIDS; FILM;

D O I：

10.1016/j.jallcom.2016.11.234

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have prepared NiCo2O4 nanoparticles decorated graphene nanosheets (NiCo2O4/graphene) nanohybrids via a dry and scalable synthesis technique. FE-SEM and TEM images of as-prepared NiCo2O4/graphene nanohybrids showed uniformly well decoration of NiCo2O4 nanoparticles on the surfaces of graphene nanosheets. The electrochemical performance of NiCo2O4/graphene nanohybrids was analyzed by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The NiCo2O4-decorated graphene electrode exhibited a maximum specific capacitance of 886 Fg(-1) at a scan rate of 5.0 mVs(-1), and also showed high cyclic stability with retention of 82.1% after 2000 cycle. As an enzymeless glucose biosensor, the NiCo2O4/graphene modified GC electrode showed excellent electro-catalytic behavior towards glucose with higher oxidation peak current. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：193 / 200

页数：8

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