3D NiO hollow sphere/reduced graphene oxide composite for high-performance glucose biosensor

被引：144

作者：

Huang, Wei ^{[1
]}

Ding, Shujiang ^{[2
,3
]}

Chen, Yong ^{[1
]}

Hao, Wanjun ^{[1
]}

Lai, Xiaoyong ^{[4
]}

Peng, Juan ^{[4
]}

Tu, Jinchun ^{[1
]}

Cao, Yang ^{[1
]}

Li, Xiaotian ^{[5
]}

机构：

[1] Hainan Univ, Key Lab Trop Biol Resources, Minist Educ, State Key Lab Marine Resource Utilizat South Chin, Haikou 570228, Peoples R China

[2] Xi An Jiao Tong Univ, Dept Appl Chem, Sch Sci, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

[3] Xi An Jiao Tong Univ, MOE Key Lab Nonequilibrium Synth & Modulat Conden, Xian 710049, Peoples R China

[4] Ningxia Univ, Sch Chem & Chem Engn, Lab Cultivat Base Nat Gas Convers, Yinchuan 750021, Peoples R China

[5] Jilin Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Automobile Mat, Changchun 130012, Peoples R China

来源：

SCIENTIFIC REPORTS | 2017年 / 7卷

基金：

中国国家自然科学基金;

关键词：

ENERGY; ELECTRODE; HYBRID; SUPERCAPACITOR; STORAGE; ELECTROCATALYST; FABRICATION; REDUCTION; NANOTUBES; NANOBOXES;

D O I：

10.1038/s41598-017-05528-1

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The 3D NiO hollow sphere/reduced graphene oxide (rGO) composite was synthesized according to the coordinating etching and precipitating process by using Cu2O nanosphere/graphene oxide (GO) composite as template. The morphology, structure, and composition of the materials were characterized by SEM, TEM, HRTEM, XPS, and Raman spectra, and the electrochemical properties were studied by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and amperometry. Moreover, the electrochemical activity of the composite materials with different morphologies were also investigated, which indicating a better combination of the NiO hollow sphere and the rGO. Used as glucose sensing material, the 3D NiO hollow sphere/rGO composite modified electrode exhibits high sensitivity of similar to 2.04 mA mM(-1) cm(-2), quick response time of less than 5 s, good stability, selectivity, and reproducibility. Its application for the detection of glucose in human blood serum sample shows acceptable recovery and R. S. D. values. The outstanding glucose sensing performance should be attributed to the unique 3D hierarchical porous superstructure of the composite, especially for its enhanced electron-transfer kinetic properties.

引用

页数：11

共 51 条

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