X-Ray Photoelectron Spectroscopic Characterization of Chemically Modified Electrodes Used as Chemical Sensors and Biosensors: A Review

被引：152

作者：

Desimoni, Elio ^{[1
]}

Brunetti, Barbara ^{[1
]}

机构：

[1] Univ Milan, DeFENS, Via Celoria 2, I-20133 Milan, Italy

来源：

CHEMOSENSORS | 2015年 / 3卷 / 02期

关键词：

chemically modified sensors; biosensors; X-ray photoelectron spectroscopy; surface analysis of electrodes; electrocatalysis;

D O I：

10.3390/chemosensors3020070

中图分类号：

O65 [分析化学];

学科分类号：

070302 [分析化学]; 081704 [应用化学];

摘要：

The characterization of chemically modified sensors and biosensors is commonly performed by cyclic voltammetry and electron microscopies, which allow verifying electrode mechanisms and surface morphologies. Among other techniques, X-ray photoelectron spectroscopy (XPS) plays a unique role in giving access to qualitative, quantitative/semi-quantitative and speciation information concerning the sensor surface. Nevertheless, XPS remains rather underused in this field. The aim of this paper is to review selected articles which evidence the useful performances of XPS in characterizing the top surface layers of chemically modified sensors and biosensors. A concise introduction to X-ray Photoelectron Spectroscopy gives to the reader the essential background. The application of XPS for characterizing sensors suitable for food and environmental analysis is highlighted.

引用

页码：70 / 117

页数：48

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