Birnessite MnO2 decorated MWCNTs composite as a nonenzymatic hydrogen peroxide sensor

被引：19

作者：

Dinesh, Muthu ^{[1
]}

Revathi, Chinnasamy ^{[2
]}

Haldorai, Yuvaraj ^{[1
]}

Kumar, Ramasamy Thangavelu Rajendra ^{[1
]}

机构：

[1] Bharathiar Univ, Dept Nanosci & Technol, Adv Mat & Devices Lab, Coimbatore 641046, Tamil Nadu, India

[2] PSG Inst Adv Studies, Nanobiotechnol Lab, Coimbatore 641004, Tamil Nadu, India

来源：

CHEMICAL PHYSICS LETTERS | 2019年 / 731卷

关键词：

WALLED CARBON NANOTUBES; GRAPHENE OXIDE; ELECTROCHEMICAL SENSOR; MECHANICAL-PROPERTIES; SILVER NANOPARTICLES; H2O2; PERFORMANCE; NANOSHEETS; ELECTRODE; LITHIUM;

D O I：

10.1016/j.cplett.2019.136612

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：

In this work, manganese dioxide (MnO2) nanostructure (similar to 100 nm) were decorated on the surface of MWCNTs (multi-walled carbon nanotubes). From the electrochemical measurements, it was observed that hydrogen peroxide (H2O2) sensor based on the MWCNTs/MnO2 showed a wide linear range (100 mu M - 20.5 mM) with a limit of detection of 6.97 mu M and sensitivity of 13.9 mu A/mM/cm(2). In addition, the electrode exhibited high stability, good selectivity and long shelf-life for the detection of H2O2. The high surface area of the composite and good electrocatalytic activity of MnO2, which make the electrode a promising transducer for non-enzymatic H2O2 sensing.

引用

页数：6

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