Unique Nitrogen-Doped Carbon Polyhedron Embedded with Co Derived Core-Shell Nanoparticles for the Electro-Catalysis towards Hydrogen Peroxide Redox Reaction and Nonenzymatic Detection
- 17 February 2021
- journal article
- research article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 168 (3), 037501
- https://doi.org/10.1149/1945-7111/abe723
Abstract
Unique nitrogen-doped carbon polyhedron embedded with core-shell Co@Co3O4 nanoparticles (Co@Co3O4-NC) was synthesized with the pyrolysis of zeolitic imidazolate framework. Co@Co3O4-NC was characterized by field emission scanning electron microscope, high-resolution transmission electron microscope, powder X-ray diffraction, X-ray photoelectron spectroscopy and nitrogen adsorption-desorption experiment. Co@Co3O4-NC displayed a strong electrochemical catalysis towards both H2O2 oxidation and H2O2 reduction. By using Co@Co3O4-NC prepared sensor, efficient detection of H2O2 was achieved not only by the H2O2 oxidation at a positive potential but also by the H2O2 reduction at a negative potential. At 0.30 V, the resulting sensor exhibited a rapid amperometric response (2 seconds), low detection limit (0.056 μM) and broad detection linear range (0.1 μM-40.0 mM). Besides, at -0.30 V, the resulting sensor also exhibited a rapid amperometric response (4 seconds), low detection limit (0.96 μM) and broad detection linear range (2.0 μM-60.0 mM). Additionally, Co@Co3O4-NC prepared sensor also presented a notable selectivity, high reproducibility and long-term stability. Our results proved that Co@Co3O4-NC was an efficient electro-catalyst for H2O2 redox reaction, and Co@Co3O4-NC prepared sensor could be a promising sensing platform for the nonenzymatic detection of H2O2.Keywords
Funding Information
- National Natural Science Foundation of China (21274032)
This publication has 53 references indexed in Scilit:
- Aqueous room temperature synthesis of cobalt and zinc sodalite zeolitic imidizolate frameworksDalton Transactions, 2012
- Lyn is a redox sensor that mediates leukocyte wound attraction in vivoNature, 2011
- Electrochemical Sensors and BiosensorsAnalytical Chemistry, 2011
- Supported Cobalt Oxide Nanoparticles As Catalyst for Aerobic Oxidation of Alcohols in Liquid PhaseACS Catalysis, 2011
- Resolving surface chemical states in XPS analysis of first row transition metals, oxides and hydroxides: Cr, Mn, Fe, Co and NiApplied Surface Science, 2011
- Aquaporin-3 mediates hydrogen peroxide uptake to regulate downstream intracellular signalingProceedings of the National Academy of Sciences of the United States of America, 2010
- Synthesis, Structure, and Carbon Dioxide Capture Properties of Zeolitic Imidazolate FrameworksAccounts of Chemical Research, 2009
- Influence of the Catalyst Hydrogen Pretreatment on the Growth of Vertically Aligned Nitrogen-Doped Carbon NanotubesChemistry of Materials, 2007
- Co3O4/CeO2 composite oxides for methane emissions abatement: Relationship between Co3O4–CeO2 interaction and catalytic activityApplied Catalysis B: Environmental, 2006
- Solubilization of Carbon Nanotubes by Nafion toward the Preparation of Amperometric BiosensorsJournal of the American Chemical Society, 2003