ITO上AuPd合金和Au阵列图案的制备及电催化活性的SECM表征

引用本文: 苏通裕, 肖孝建, 叶梦薇, 田晓春, 林建航, 汤儆. ITO上AuPd合金和Au阵列图案的制备及电催化活性的SECM表征[J]. 物理化学学报, 2014, 30(2): 325-330. doi: 10.3866/PKU.WHXB201312242 shu

Citation: SU Tong-Yu, XIAO Xiao-Jian, YE Meng-Wei, TIAN Xiao-Chun, LIN Jian-Hang, TANG Jing. Preparation of AuPd and Au Microarrays on ITO and Characterization of Electrocatalytic Activity with SECM[J]. Acta Physico-Chimica Sinica, 2014, 30(2): 325-330. doi: 10.3866/PKU.WHXB201312242 shu

ITO上AuPd合金和Au阵列图案的制备及电催化活性的SECM表征

苏通裕 ^1, ,
肖孝建 ^1, ,
叶梦薇 ^1, ,
田晓春 ^1, ,
林建航 ^2, ,
汤儆 ^1,

基金项目:
国家自然科学基金(21173048，21073038)资助项目 (21173048，21073038)

摘要:

利用电化学湿法印章技术在氧化铟锡(ITO)导电玻璃上制备AuPd合金和Au的双组分阵列图案. 采用具有微浮雕图案的琼脂糖印章存储足够多的溶液，并通过控制电沉积的时间来控制图案厚度. 应用场发射扫描电子显微镜(FE-SEM)，X射线能谱分析(EDX)和原子力显微镜(AFM)分别对ITO表面上的AuPd合金和Au的形貌和组分进行表征，并通过循环伏安(CV)技术和扫描电化学显微镜(SECM)研究比较了Au和AuPd合金的催化活性. 利用扫描电化学显微镜(SECM)的针尖产生-基底收集(TG-SC)模式和氧化还原竞争(RC)模式，发现Au电极对二茂铁甲醇氧化物(FcMeOH⁺)电催化还原能力高于AuPd合金电极，而在AuPd合金上催化还原H₂O₂的能力显著高于Au.

关键词:

English

Preparation of AuPd and Au Microarrays on ITO and Characterization of Electrocatalytic Activity with SECM

1.
1 Key Laboratory of Analysis and Detection Technology for Food Safety, Ministry of Education, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China;
2 Instrumental Measurement and Analysis Center, Fuzhou University, Fuzhou 350002, P. R. China
Received Date: 29 October 2013
Available Online: 23 January 2014
Fund Project:
国家自然科学基金(21173048，21073038)资助项目

Abstract:

Au and AuPd arrays were deposited onto an indium tin oxide (ITO) surface by the electrochemical wet stamping method. Agarose stamp with microstructures and solution was used to electrodeposit and generate patterns of a certain thickness. Field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray analysis (EDX), and atomic force microscopy (AFM) were employed to characterize the morphology and components on the surface. Tip generation-substrate collection (TG-SC) mode and redox-competition (RC) mode of scanning electrochemical microscopy (SECM) combined with cyclic voltammetry were used to explore the electrocatalytic activity of the alloy arrays. In the study of the electrocatalysis, AuPd exhibited higher activity for the reduction of H₂O₂ than pure Au, but lower activity for that of ferrocenemethanol oxide (FcMeOH⁺).

Key words:

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沈阳化工大学材料科学与工程学院沈阳 110142

ITO上AuPd合金和Au阵列图案的制备及电催化活性的SECM表征

English

Preparation of AuPd and Au Microarrays on ITO and Characterization of Electrocatalytic Activity with SECM

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

ITO上AuPd合金和Au阵列图案的制备及电催化活性的SECM表征

English

Preparation of AuPd and Au Microarrays on ITO and Characterization of Electrocatalytic Activity with SECM

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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