Issue 3, 2017

Surfactant-free synthesis of three-dimensional nitrogen-doped hierarchically porous carbon and its application as an electrode modification material for simultaneous sensing of ascorbic acid, dopamine and uric acid

Abstract

Three-dimensional N-doped hierarchically porous carbon (3D NHPC) was synthesized successfully without using any surfactant or etching agent. This simple and effective synthesis method was accomplished by solvothermal synthesis followed by pyrolysis. The physical morphology and chemical composition of 3D NHPC were verified by scanning electron microscopy, nitrogen adsorption–desorption, and X-ray photoelectron spectroscopy. Its structural studies reveal that it exhibits a micro–mesoporous hierarchical structure and contains C, O and N atoms forming different functional groups. The characterization also reveals that 3D NHPC has a Brunauer–Emmett–Teller (BET) surface area of 594.774 m2 g−1 and the micropore volume was calculated to be 0.192 cm3 g−1 using the t-plot method. Its catalytic activity was investigated by studying its application for simultaneous determination of ascorbic acid (AA), dopamine (DA) and uric acid (UA) by cyclic voltammetry and square-wave voltammetry at physiological pH. A 3D NHPC-modified glassy carbon electrode exhibits linear ranges from 0.05 to 14.50 μM, 1.0 to 120.0 μM, and 2.0 to 30.0 μM for DA, AA and UA, respectively. It also exhibits low detection limits (0.02, 0.10, and 0.14 μM for DA, AA, and UA, respectively), good reproducibility and stability. The urine sample analysis results show good recoveries ranging between 96.30% and 105.40%.

Graphical abstract: Surfactant-free synthesis of three-dimensional nitrogen-doped hierarchically porous carbon and its application as an electrode modification material for simultaneous sensing of ascorbic acid, dopamine and uric acid

Supplementary files

Article information

Article type
Paper
Submitted
03 Dec. 2016
Accepted
04 Janv. 2017
First published
05 Janv. 2017

Analyst, 2017,142, 478-484

Surfactant-free synthesis of three-dimensional nitrogen-doped hierarchically porous carbon and its application as an electrode modification material for simultaneous sensing of ascorbic acid, dopamine and uric acid

A. Nsabimana, J. Lai, S. Li, P. Hui, Z. Liu and G. Xu, Analyst, 2017, 142, 478 DOI: 10.1039/C6AN02584F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements