FTO基银纳米线电极的制备及电催化氧化甲醛的性能研究

doi:10.7527/S1000-6893.2014.0151

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FTO基银纳米线电极的制备及电催化氧化甲醛的性能研究

梁殊, 陈爱华

北京航空航天大学材料科学与工程学院, 北京 100191

收稿日期:2014-04-16 修回日期:2014-07-09 出版日期:2014-10-25 发布日期:2014-07-11
通讯作者: 陈爱华，Tel.：010-82317738 E-mail：chenaihua@buaa.edu.cn E-mail:chenaihua@buaa.edu.cn
作者简介:梁殊男，硕士研究生。主要研究方向：纳米银电极的可控制备及其催化性能的研究。Tel：010-82317738 E-mail：liangshubuaa@hotmail.com ；陈爱华女，博士，副教授，博士生导师。主要研究方向：精细结构纳米材料的可控制备及其在太阳能电池、燃料电池等新能源领域的应用研究。Tel：010-82317738 E-mail：chenaihua@buaa.edu.cn
基金资助:
国家自然科学基金（51272010）；北京市科技新星计划（XX2013009）；高等学校博士学科点专项科研基金（20121102120001）；新世纪优秀人才支持计划（NCET-12-0035）

Fabrication of Silver Nanowires Electrode on FTO Substrates and Studies on Its Electrocatalytic Activity for Formaldehyde Electrooxidation

LIANG Shu, CHEN Aihua

School of Materials Science and Engineering, Beihang University, Beijing 100191, China

Received:2014-04-16 Revised:2014-07-09 Online:2014-10-25 Published:2014-07-11
Supported by:
National Natural Science Foundation of China (51272010); Beijing Nova Program (XX2013009); Specialized Research Fund for the Doctoral Program of Higher Education of China (20121102120001); Program for New Century Excellent Talents in University(NCET-12-0035)

摘要/Abstract

摘要：

为了增强银纳米线与基材的结合性和提高银纳米线在基材上分布的规整性，采用恒电压沉积法，以改进的阳极氧化铝/聚乙烯醇/氟掺杂氧化锡（AAO/PVA/FTO）为模板，制备出具有不同形貌和尺寸的FTO基纳米银电极。场发射扫描电子显微镜（Field Emission Scanning Electron Microscopy，FESEM）研究结果表明沉积 60 min 时的产物为生长在PVA膜上的长度为20 ~ 25 μm 的FTO基银纳米线阵列。进行了该电极对低浓度甲醛催化氧化的研究，实现了对甲醛浓度在0.1 ~ 3.7 mmol/L 范围的检测，检测灵敏度为48.966 0 μA·cm^-2· （mmol/L）^-1，检测限为6.48×10^-3 mmol/L。与乙醛、乙醇和丁醇相比，该电极对甲醛的选择性好，并且制备方法简便，有望作为低浓度甲醛检测传感器。

关键词: 复合模板, 电沉积, 银纳米线阵列电极, 电催化, 甲醛检测

Abstract:

In order to improve the regularity of silver nanowires and enhance their adhesion with substrates, potentiostatic electrodepposition is used. Different morphology and size of nano silver are fabricated using a modified anodic aluminum oxide/polyvinyl alcohol/fluorine-doped tin oxide (AAO/PVA/FTO) composite templates. Silver nanowires arrays with uniform lengths of 20-25 μm on PVA/FTO are obtained by a 60 min deposition of silver in the tempalte which confirmed by field emission scanning electron microscopy (FESEM). Amperometric responses of formaldehyde electrooxidation are conducted on this silver nanowires arrays electrode. Chronoamperometric results demonstrated that the proposed electrode could be used as a sensor for sensitive detection of formaldehyde at concentration range of 0.1-3.7 mmol/L with the sensitivity and detection limit of 48.9660 μA·cm^-2·(mmol/L)^-1 and 6.48×10^-3 mmol/L respectively. The developed electrode also exhibited a high selectivity for formaldehyde comparing with acetaldehyde, ethanol and butanol. In addition, the preparation of the promising silver nanowires sensor is very simple.

Key words: composite template, electrodeposition, silver nanowires arrays electrode, electrocatalysis, formaldehyde detection

中图分类号:

V261
O643.3

梁殊, 陈爱华. FTO基银纳米线电极的制备及电催化氧化甲醛的性能研究[J]. 航空学报, 2014, 35(10): 2841-2849.

LIANG Shu, CHEN Aihua. Fabrication of Silver Nanowires Electrode on FTO Substrates and Studies on Its Electrocatalytic Activity for Formaldehyde Electrooxidation[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014, 35(10): 2841-2849.

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E-mail：hkxb@buaa.edu.cn

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FTO基银纳米线电极的制备及电催化氧化甲醛的性能研究

Fabrication of Silver Nanowires Electrode on FTO Substrates and Studies on Its Electrocatalytic Activity for Formaldehyde Electrooxidation

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