Preparation of PW11Fe/CS/CNTs/C composite film electrode and application in H2O2 electrochemical sensor

WANG Xin; ZHANG Jinming; JIANG Xiaowei; HAN Leiyun; WANG Lili; HUANG Yanxia; YOU Chenghang; HUA Yingjie; WANG Chongtai

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Preparation of PW₁₁Fe/CS/CNTs/C composite film electrode and application in H₂O₂ electrochemical sensor

更新时间：2023-12-11

- Preparation of PW₁₁Fe/CS/CNTs/C composite film electrode and application in H₂O₂ electrochemical sensor
- Acta Scientiarum Naturalium Universitatis SunYatseni Vol. 56, Issue 5, Pages: 79-84(2017)
- 作者机构：
  
  海南师范大学化学与化工学院,海南,海口,571158
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2017，
  
  Published Online：25 September 2017，
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WANG Xin, ZHANG Jinming, JIANG Xiaowei, et al. Preparation of PW₁₁Fe/CS/CNTs/C composite film electrode and application in H₂O₂ electrochemical sensor. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 56(5):79-84(2017)
DOI：

WANG Xin, ZHANG Jinming, JIANG Xiaowei, et al. Preparation of PW₁₁Fe/CS/CNTs/C composite film electrode and application in H₂O₂ electrochemical sensor. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 56(5):79-84(2017) DOI：

摘要

以壳聚糖(CS)为吸附剂和成膜剂，Keggin 型铁取代杂多阴离子PW

Fe(Ⅲ)(H

(PW

Fe)为电催化剂，碳纳米管(CNTs) 为导电助剂，集成吸附法和溶胶-凝胶法将PW

Fe固载在石墨电极表面制备了PW

Fe/CS/CNTs /C复合膜电极，并用电化学方法研究了该电极的电化学行为及其影响因素，同时研究了电极对H

还原的电催化活性及作为H

电化学传感器的可能性。实验结果表明，PW

Fe/CS/CNTs/C复合膜电极具有PW

Fe类似的电化学行为及对H

还原的电催化活性，用于H

的安培检测，电流响应灵敏度为0.30 mA·cm

-2

·(μmol/L)

-1

检出限为7.3 μmol/L (S/N=3)。

Abstract

A composite film electrode PW

Fe/CS/CNTs/C was prepared by the integration of adsorption method and solgel method using chitosan as both an adsorbent and film-forming agent

Keggin type Fe(Ⅲ) substituted heteropolyanion PW

Fe(Ⅲ)(H

(PW

Fe) as an electrocatalyst

carbon nano tubes (CNTs) as a conductivity improver in this paper. The electrochemical behavior and its influence factors of the asprepared electrode were investigated by using the electrochemical method. The electrocatalytic activity towards H

reduction and the possibility also used to be an electrochemical sensor detecting H

were evaluated. The results showed that the PW

Fe/CS/CNTs/C composite film electrode possessed a similar electrochemical behavior with PW

Fe and a high electrocatalytic activity towards H

reduction. For detecting H

reduction. Applied to detect H

the electrode exhibits a high sensitivity of 0.30 mA·cm

-2

·(μmol/L)

-1

and a detection limit of 7.3 μmol/L (S/N=3).

关键词

Keggin型铁取代杂多阴离子循环伏安壳聚糖电催化碳纳米管

Keywords

Keggin-type iron substituted heteropolytungstatecycle voltammetrychitosanelectrocatalysiscarbon nano tubes

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Related Institution

School of Chemistry and Chemical Engineering, Sun Yat-sen University

College of Chemistry, State Key Laboratory of Inorganic Synthesis and Preparation Chemistry, Jilin University

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